ANS and ISO catalog views

There are two versions of some of the ANS and ISO catalog views. The version documented is the normal set of ANS and ISO views. A second set of views have names that are limited to no more than 18 characters and other than the view names are not documented in this book.

The ANS and ISO catalog includes the following tables in the QSYS2 library:

View Name Shorter View Name Description
SQL_FEATURES Information about features supported by the database manager
SQL_LANGUAGES SQL_LANGUAGES_S Information about the supported languages
SQL_SIZING Information about the limits supported by the database manager

The ANS and ISO catalog includes the following views and tables in the SYSIBM and QSYS2 libraries:

View Name Shorter View Name Description
CHARACTER_SETS CHARACTER_SETS_S Information about supported CCSIDs
CHECK_CONSTRAINTS Information about check constraints
COLUMNS COLUMNS_S Information about columns
INFORMATION_SCHEMA_CATALOG_NAME CATALOG_NAME Information about the relational database
PARAMETERS PARAMETERS_S Information about procedure parameters
REFERENTIAL_CONSTRAINTS REF_CONSTRAINTS Information about referential constraints
ROUTINES ROUTINES_S Information about routines
SCHEMATA SCHEMATA_S Statistical information about schemas
TABLE_CONSTRAINTS Information about constraints
TABLES TABLES_S Information about tables
USER_DEFINED_TYPES UDT_S Information about distinct types
VIEWS Information about views

CHARACTER_SETS

The CHARACTER_SETS view contains one row for every CCSID supported. The following table describes the columns in the view:

Table 153. CHARACTER_SETS view
Column Name Data Type Description
CHARACTER_SET_CATALOG VARCHAR(128) Relational database name
CHARACTER_SET_SCHEMA VARCHAR(128) The schema name of the character set. Contains 'SYSIBM'.
CHARACTER_SET_NAME VARCHAR(128) The character set name.
FORM_OF_USE VARCHAR(128)
Nullable
 Reserved. Contains the null value.
NUMBER_OF_CHARACTERS INTEGER
Nullable
 Reserved. Contains the null value.
DEFAULT_COLLATE_CATALOG VARCHAR(128) Reserved. Contains the relational database name.
DEFAULT_COLLATE_SCHEMA VARCHAR(128) Reserved. Contains SYSIBM.
DEFAULT_COLLATE_NAME VARCHAR(128) Reserved. Contains IBMDEFAULT.

CHECK_CONSTRAINTS

The CHECK_CONSTRAINTS view contains one row for every check constraint. The following table describes the columns in the view:

Table 154. CHECK_CONSTRAINTS view
Column Name Data Type Description
CONSTRAINT_CATALOG VARCHAR(128) Relational database name
CONSTRAINT_SCHEMA VARCHAR(128) Name of the schema containing the constraint
CONSTRAINT_NAME VARCHAR(128) Name of the constraint
CHECK_CLAUSE VARCHAR(2000)
Nullable
 Text of the check constraint clause

Contains the null value if the check clause cannot be contained in the column without truncation.

COLUMNS

The COLUMNS view contains one row for every column. The following table describes the columns in the view:

Table 155. COLUMNS view
Column Name Data Type Description
TABLE_CATALOG VARCHAR(128) Relational database name
TABLE_SCHEMA VARCHAR(128) Name of the SQL schema containing the table or view
TABLE_NAME VARCHAR(128) Name of the table or view that contains the column
COLUMN_NAME VARCHAR(128) Name of the column
ORDINAL_POSITION INTEGER Numeric place of the column in the table or view, ordered from left to right
COLUMN_DEFAULT VARCHAR(2000)
Nullable
 The default value of a column, if one exists. If the default value of the column cannot be represented without truncation, then the value of the column is the string 'TRUNCATED'. The default value is stored in character form. The following special values also exist:
CURRENT_DATE
The default value is the current date.
CURRENT_TIME
The default value is the current time.
CURRENT_TIMESTAMP
The default value is the current timestamp.
NULL
The default value is the null value and DEFAULT NULL was explicitly specified.
USER
The default value is the current job user.

Contains the null value if:

  • The column has no default value. For example, if the column has an IDENTITY attribute or is a row ID, or
  • A DEFAULT value was not explicitly specified.
IS_NULLABLE VARCHAR(3) Indicates whether the column can contain null values:
NO
The column cannot contain null values.
YES
The column can contain null values.
DATA_TYPE VARCHAR(128) Type of column:
BIGINT
Big number
INTEGER
Large number
SMALLINT
Small number
DECIMAL
Packed decimal
NUMERIC
Zoned decimal
DOUBLE PRECISION
Double-precision floating point
REAL
Single-precision floating point
CHARACTER
Fixed-length character string
CHARACTER VARYING
Varying-length character string
CHARACTER LARGE OBJECT
Character large object string
GRAPHIC
Fixed-length graphic string
GRAPHIC VARYING
Varying-length graphic string
DOUBLE-BYTE CHARACTER LARGE OBJECT
Double-byte character large object string
BINARY
Fixed-length binary string
BINARY VARYING
Varying-length binary string
BINARY LARGE OBJECT
Binary large object string
DATE
Date
TIME
Time
TIMESTAMP
Timestamp
DATALINK
Datalink
ROWID
Row ID
USER-DEFINED
Distinct type
CHARACTER_MAXIMUM_LENGTH INTEGER
Nullable
 Maximum length of the string for binary, character and graphic string data types.

Contains the null value if the column is not a string.
CHARACTER_OCTET_LENGTH INTEGER
Nullable
 Number of bytes for binary, character and graphic string data types.

Contains the null value if the column is not a string.
NUMERIC_PRECISION INTEGER
Nullable
 The precision of all numeric columns.

Note:
This column supplies the precision of all numeric data types, including single-and double-precision floating point. The NUMERIC_PRECISION_RADIX column indicates if the value in this column is in binary or decimal digits.

Contains the null value if the column is not numeric.
NUMERIC_PRECISION_RADIX INTEGER
Nullable
 Indicates if the precision specified in column NUMERIC_PRECISION is specified as a number of binary or decimal digits
2
Binary; floating-point precision is specified in binary digits.
10
Decimal; all other numeric types are specified in decimal digits.

Contains the null value if the column is not numeric.
NUMERIC_SCALE INTEGER
Nullable
 Scale of numeric data.

Contains the null value if the column is not decimal, numeric, or binary.
DATETIME_PRECISION INTEGER
Nullable
 The fractional part of a date, time, or timestamp.
0
For DATE and TIME data types
6
For TIMESTAMP data types (number of microseconds).

Contains the null value if the column is not a date, time, or timestamp.
INTERVAL_TYPE VARCHAR(128)
Nullable
 Reserved. Contains the null value.
INTERVAL_PRECISION INTEGER
Nullable
 Reserved. Contains the null value.
CHARACTER_SET_CATALOG VARCHAR(128)
Nullable
 Relational database name

Contains the null value if the column is not a string.
CHARACTER_SET_SCHEMA VARCHAR(128)
Nullable
 The schema name of the character set. Contains SYSIBM.

Contains the null value if the column is not a string.
CHARACTER_SET_NAME VARCHAR(128)
Nullable
 The character set name.

Contains the null value if the column is not a string.
COLLATION_CATALOG VARCHAR(128)
Nullable
 Relational database name

Contains the null value if the column is not a string.
COLLATION_SCHEMA VARCHAR(128)
Nullable
 The schema of the collation. Contains SYSIBM.

Contains the null value if the column is not a string.
COLLATION_NAME VARCHAR(128)
Nullable
 The collation name. Contains IBMBINARY.

Contains the null value if the column is not a string.
DOMAIN_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
DOMAIN_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
DOMAIN_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
UDT_CATALOG VARCHAR(128)
Nullable
 The relational database name if this is a distinct type.

Contains the null value if this is not a distinct type.
UDT_SCHEMA VARCHAR(128)
Nullable
 The name of the schema if this is a distinct type.

Contains the null value if this is not a distinct type.
UDT_NAME VARCHAR(128)
Nullable
 The name of the distinct type.

Contains the null value if this is not a distinct type.
SCOPE_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
SCOPE_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
SCOPE_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
MAXIMUM_CARDINALITY INTEGER
Nullable
 Reserved. Contains the null value.
DTD_IDENTIFIER VARCHAR(128)
Nullable
 A unique internal identifier for the column.
IS_SELF_REFERENCING VARCHAR(3) Reserved. Contains 'NO'.

INFORMATION_SCHEMA_CATALOG_NAME

The INFORMATION_SCHEMA_CATALOG_NAME view contains one row for the relational database. The following table describes the columns in the view:

Table 156. INFORMATION_SCHEMA_CATALOG_NAME view
Column Name Data Type Description
CATALOG_NAME VARCHAR(128) Relational database name

PARAMETERS

The PARAMETERS view contains one row for each parameter of a routine in the relational database. The following table describes the columns in the view:

Table 157. PARAMETERS view
Column Name Data Type Description
SPECIFIC_CATALOG VARCHAR(128) Relational database name
SPECIFIC_SCHEMA VARCHAR(128) Schema name of the routine instance
SPECIFIC_NAME VARCHAR(128) Specific name of the routine instance
ORDINAL_POSITION INTEGER Numeric place of the parameter in the parameter list, ordered from left to right.
PARAMETER_MODE VARCHAR(5) The type of the parameter:
IN
This is an input parameter.
OUT
This is an output parameter.
INOUT
This is an input/output parameter.
IS_RESULT VARCHAR(3) Reserved. Contains 'NO'.
AS_LOCATOR VARCHAR(3) Indicates whether the parameter was specified as a locator.
NO
The parameter was not specified as a locator.
YES
The parameter was specified as a locator.
PARAMETER_NAME VARCHAR(128)
Nullable
 The name of the parameter

Contains the null value if the parameter does not have a name.
FROM_SQL_SPECIFIC_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
FROM_SQL_SPECIFIC_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
FROM_SQL_SPECIFIC_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
TO_SQL_SPECIFIC_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
TO_SQL_SPECIFIC_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
TO_SQL_SPECIFIC_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
DATA_TYPE VARCHAR(128)
Nullable
 Type of the parameter:
BIGINT
Big number
INTEGER
Large number
SMALLINT
Small number
DECIMAL
Packed decimal
NUMERIC
Zoned decimal
DOUBLE PRECISION
Floating point; DOUBLE PRECISION
REAL
Floating point; REAL
CHARACTER
Fixed-length character string
CHARACTER VARYING
Varying-length character string
CHARACTER LARGE OBJECT
Character large object string
GRAPHIC
Fixed-length graphic string
GRAPHIC VARYING
Varying-length graphic string
DOUBLE-BYTE CHARACTER LARGE OBJECT
Double-byte character large object string
BINARY
Fixed-length binary string
BINARY VARYING
Varying-length binary string
BINARY LARGE OBJECT
Binary large object string
DATE
Date
TIME
Time
TIMESTAMP
Timestamp
DATALINK
Datalink
ROWID
Row ID
USER-DEFINED
Distinct Type
CHARACTER_MAXIMUM_LENGTH INTEGER
Nullable
 Maximum length of the string for binary, character, and graphic string data types.

Contains the null value if the parameter is not a string.
CHARACTER_OCTET_LENGTH INTEGER
Nullable
 Number of bytes for binary, character, and graphic string data types.

Contains the null value if the parameter is not a string.
CHARACTER_SET_CATALOG VARCHAR(128)
Nullable
 Relational database name

Contains the null value if the column is not a string.
CHARACTER_SET_SCHEMA VARCHAR(128)
Nullable
 The schema name of the character set. Contains 'SYSIBM'.

Contains the null value if the column is not a string.
CHARACTER_SET_NAME VARCHAR(128)
Nullable
 The character set name.

Contains the null value if the column is not a string.
COLLATION_CATALOG VARCHAR(128)
Nullable
 Relational database name

Contains the null value if the column is not a string.
COLLATION_SCHEMA VARCHAR(128)
Nullable
 The schema of the collation. SYSIBM is returned.

Contains the null value if the column is not a string.
COLLATION_NAME VARCHAR(128)
Nullable
 The collation name. IBMBINARY is returned.

Contains the null value if the column is not a string.
NUMERIC_PRECISION INTEGER
Nullable
 The precision of all numeric parameters.

Note:
This column supplies the precision of all numeric data types, including single-and double-precision floating point. The NUMERIC_PRECISION_RADIX column indicates if the value in this column is in binary or decimal digits.

Contains the null value if the parameter is not numeric.
NUMERIC_PRECISION_RADIX INTEGER
Nullable
 Indicates if the precision specified in column NUMERIC_PRECISION is specified as a number of binary or decimal digits:
2
Binary; floating-point precision is specified in binary digits.
10
Decimal; all other numeric types are specified in decimal digits.

Contains the null value if the parameter is not numeric.
NUMERIC_SCALE INTEGER
Nullable
 Scale of numeric data.

Contains the null value if not decimal, numeric, or binary parameter.
DATETIME_PRECISION INTEGER
Nullable
 The fractional part of a date, time, or timestamp.
0
For DATE and TIME data types
6
For TIMESTAMP data types (number of microseconds).

Contains the null value if the parameter is not a date, time, or timestamp.
INTERVAL_TYPE VARCHAR(128)
Nullable
 Reserved. Contains the null value.
INTERVAL_PRECISION INTEGER
Nullable
 Reserved. Contains the null value.
UDT_CATALOG VARCHAR(128)
Nullable
 The relational database name if this is a distinct type.

Contains the null value if this is not a distinct type.
UDT_SCHEMA VARCHAR(128)
Nullable
 The name of the schema if this is a distinct type.

Contains the null value if this is not a distinct type.
UDT_NAME VARCHAR(128)
Nullable
 The name of the distinct type.

Contains the null value if this is not a distinct type.
SCOPE_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
SCOPE_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
SCOPE_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
MAXIMUM_CARDINALITY INTEGER
Nullable
 Reserved. Contains the null value.
DTD_IDENTIFIER VARCHAR(128)
Nullable
 A unique internal identifier for the parameter.

REFERENTIAL_CONSTRAINTS

The REFERENTIAL_CONSTRAINTS view contains one row for each referential constraint. The following table describes the columns in the view:

Table 158. REFERENTIAL_CONSTRAINTS view
Column Name Data Type Description
CONSTRAINT_CATALOG VARCHAR(128) Relational database name
CONSTRAINT_SCHEMA VARCHAR(128) Name of the schema containing the constraint.
CONSTRAINT_NAME VARCHAR(128) Name of the constraint.
UNIQUE_CONSTRAINT_CATALOG VARCHAR(128) Relational database name containing the unique constraint referenced by the referential constraint.
UNIQUE_CONSTRAINT_SCHEMA VARCHAR(128) Name of the SQL schema containing the unique constraint referenced by the referential constraint.
UNIQUE_CONSTRAINT_NAME VARCHAR(128) Name of the unique constraint referenced by the referential constraint.
MATCH_OPTION VARCHAR(7) Reserved. Contains 'NONE'.
UPDATE_RULE VARCHAR(11) Update Rule.
  • NO ACTION
  • RESTRICT
DELETE_RULE VARCHAR(11) Delete Rule
  • NO ACTION
  • CASCADE
  • SET NULL
  • SET DEFAULT
  • RESTRICT
COLUMN_COUNT INTEGER Count of columns in the constraint.

ROUTINES

The ROUTINES view contains one row for each routine. The following table describes the columns in the view:

Table 159. ROUTINES view
Column Name Data Type Description
SPECIFIC_CATALOG VARCHAR(128) Relational database name
SPECIFIC_SCHEMA VARCHAR(128) Schema name of the routine instance.
SPECIFIC_NAME VARCHAR(128) Specific name of the routine.
ROUTINE_CATALOG VARCHAR(128) Relational database name
ROUTINE_SCHEMA VARCHAR(128) Name of the SQL schema that contains the routine.
ROUTINE_NAME VARCHAR(128) Name of the routine.
ROUTINE_TYPE VARCHAR(15) Type of the routine.
PROCEDURE
This is a procedure.
FUNCTION
This is a function.
INSTANCE METHOD
This is a built-in data type function created for a distinct type.
MODULE_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
MODULE_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
MODULE_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
UDT_CATALOG VARCHAR(128)
Nullable
 Relational database name.

Contains the null value if this is not an INSTANCE METHOD.
UDT_SCHEMA VARCHAR(128)
Nullable
 Name of the SQL schema that contains the distinct type related to this function.

Contains the null value if this is not an INSTANCE METHOD.
UDT_NAME VARCHAR(128)
Nullable
 Name of the distinct type name related to this function.

Contains the null value if this is not an INSTANCE METHOD.
DATA_TYPE VARCHAR(128)
Nullable
 Type of the result of the function:
BIGINT
Big number
INTEGER
Large number
SMALLINT
Small number
DECIMAL
Packed decimal
NUMERIC
Zoned decimal
DOUBLE PRECISION
Floating point; DOUBLE PRECISION
REAL
Floating point; REAL
CHARACTER
Fixed-length character string
CHARACTER VARYING
Varying-length character string
CHARACTER LARGE OBJECT
Character large object string
GRAPHIC
Fixed-length graphic string
GRAPHIC VARYING
Varying-length graphic string
DOUBLE-BYTE CHARACTER LARGE OBJECT
Double-byte character large object string
BINARY
Fixed-length binary string
BINARY VARYING
Varying-length binary string
BINARY LARGE OBJECT
Binary large object string
DATE
Date
TIME
Time
TIMESTAMP
Timestamp
DATALINK
Datalink
ROWID
Row ID
USER-DEFINED
Distinct Type

Contains the null value if this is not a scalar function.
CHARACTER_MAXIMUM_LENGTH INTEGER
Nullable
 Maximum length of the result string of the function for binary, character, and graphic string data types.

Contains the null value if this is not a scalar function or the parameter is not a string.
CHARACTER_OCTET_LENGTH INTEGER
Nullable
 Number of bytes for the result string of the function for binary, character, and graphic string data types.

Contains the null value if this is not a scalar function or the parameter is not a string.
CHARACTER_SET_CATALOG VARCHAR(128)
Nullable
 Relational database name of the result of the function.

Contains the null value if this is not a scalar function or the result is not a string.
CHARACTER_SET_SCHEMA VARCHAR(128)
Nullable
 The schema name of the character set of the result of the function. Contains 'SYSIBM'.

Contains the null value if this is not a scalar function or the result is not a string.
CHARACTER_SET_NAME VARCHAR(128)
Nullable
 The character set name of the result of the function.

Contains the null value if this is not a scalar function or the result is not a string.
COLLATION_CATALOG VARCHAR(128)
Nullable
 Relational database name of the result of the function.

Contains the null value if this is not a scalar function or the result is not a string.
COLLATION_SCHEMA VARCHAR(128)
Nullable
 The schema of the collation of the result of the function. SYSIBM is returned.

Contains the null value if this is not a scalar function or the result is not a string.
COLLATION_NAME VARCHAR(128)
Nullable
 The collation name of the result of the function. IBMBINARY is returned.

Contains the null value if this is not a scalar function or the result is not a string.
NUMERIC_PRECISION INTEGER
Nullable
 The precision of the result of the function.

Note:
This column supplies the precision of all numeric data types, including single-and double-precision floating point. The NUMERIC_PRECISION_RADIX column indicates if the value in this column is in binary or decimal digits.

Contains the null value if this is not a scalar function or the result is not numeric.
NUMERIC_PRECISION_RADIX INTEGER
Nullable
 Indicates if the precision specified in column NUMERIC_PRECISION is specified as a number of binary or decimal digits:
2
Binary; floating-point precision is specified in binary digits.
10
Decimal; all other numeric types are specified in decimal digits.

Contains the null value if this is not a scalar function or the result is not numeric.
NUMERIC_SCALE INTEGER
Nullable
 Scale of numeric result of the function.

Contains the null value if this is not a scalar function or the result is not numeric.
DATETIME_PRECISION INTEGER
Nullable
 The fractional part of a date, time, or timestamp result of the function.
0
For DATE and TIME data types
6
For TIMESTAMP data types (number of microseconds).

Contains the null value if this is not a scalar function or the result is not a date, time, or timestamp.
INTERVAL_TYPE VARCHAR(128)
Nullable
 Reserved. Contains the null value.
INTERVAL_PRECISION INTEGER
Nullable
 Reserved. Contains the null value.
TYPE_UDT_CATALOG VARCHAR(128)
Nullable
 The relational database name if the result of the function is a distinct type.

Contains the null value if this is not a scalar function or the result is not a distinct type.
TYPE_UDT_SCHEMA VARCHAR(128)
Nullable
 The name of the schema if the result of the function is a distinct type.

Contains the null value if this is not a scalar function or the result is not a distinct type.
TYPE_UDT_NAME VARCHAR(128)
Nullable
 The name of the distinct type if the result of the function is a distinct type.

Contains the null value if this is not a scalar function or the result is not a distinct type.
SCOPE_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
SCOPE_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
SCOPE_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
MAXIMUM_CARDINALITY INTEGER
Nullable
 Reserved. Contains the null value.
DTD_IDENTIFIER VARCHAR(128)
Nullable
 A unique internal identifier for the result of the function.
ROUTINE_BODY VARCHAR(8) The type of the routine body:
EXTERNAL
This is an external routine.
SQL
This is an SQL routine.
ROUTINE_DEFINITION DBCLOB(2M) CCSID 13488
Nullable
 If this is an SQL routine, this column contains the SQL routine body.

Contains the null value if this is not an SQL routine or if the routine body cannot be contained in this column without truncation.
EXTERNAL_NAME VARCHAR(279)
Nullable
 If this is an external routine, this column identifies the external program name.
  • For REXX, the external program name is schema-name/source-file-name(member-name).
  • For ILE service programs, the external program name is schema-name/service-program-name(entry-point-name).
  • For Java™ programs, the external program name is an optional jar-id followed by a fully-qualified-class-name!method-name or fully-qualified-class-name.method-name.
  • For all other languages, the external program name is schema-name/program-name.

Contains the null value if this is a system-generated function or a function sourced on a built-in function.
EXTERNAL_LANGUAGE VARCHAR(8)
Nullable
 If this is an external routine, this column identifies the external program name.
C      
The external program is written in C.
C++      
The external program is written in C++.
CL     
The external program is written in CL.
COBOL  
The external program is written in COBOL.
COBOLLE
The external program is written in ILE COBOL.
FORTRAN
The external program is written in FORTRAN.
JAVA
The external program is written in JAVA.
PLI    
The external program is written in PL/I.
REXX   
The external program is a REXX procedure.
RPG    
The external program is written in RPG.
RPGLE  
The external program is written in ILE RPG.

Contains the null value if this is not an external routine.
PARAMETER_STYLE VARCHAR(18)
Nullable
 If this is an external routine, this column identifies the parameter style (calling convention).
DB2GENERAL
This is the DB2GENERAL calling convention.
DB2SQL
This is the DB2SQL calling convention.
GENERAL
This is the GENERAL calling convention.
JAVA
This is the JAVA calling convention.
GENERAL WITH NULLS
This is the GENERAL WITH NULLS calling convention.
SQL
This is the SQL standard calling convention.

Contains the null value if this is not an external routine.
IS_DETERMINISTIC VARCHAR(3) This column identifies whether the routine is deterministic. That is, whether a call to the routine with the same arguments will always return the same result.
NO
The routine is not deterministic.
YES
The routine is deterministic.
SQL_DATA_ACCESS VARCHAR(17) This column identifies whether a routine contains SQL and whether it reads or modifies data.
NO SQL
The routine does not contain any SQL statements.
CONTAINS SQL
The routine contains SQL statements.
READS SQL DATA
The routine possibly reads data from a table or view.
MODIFIES SQL DATA
The routine possibly modifies data in a table or view or issues SQL DDL statements.
IS_NULL_CALL VARCHAR(3)
Nullable
 Identifies whether the function needs to be called if an input parameter is the null value.
NO
This function need not be called if an input parameter is the null value. If this is a scalar function, the result of the function is implicitly null if any of the operands are null. If this is a table function, the result of the function is an empty table if any of the operands are the null value.
YES
This function must be called even if an input operand is null.

Contains the null value if this is not a function.
SQL_PATH VARCHAR(3483)
Nullable
 If this is an SQL routine, this column identifies the path.

Contains the null value if this is not an SQL routine.
SCHEMA_LEVEL_ROUTINE VARCHAR(3) Reserved. Contains 'YES'.
MAX_DYNAMIC_RESULT_SETS SMALLINT Identifies the maximum number of result sets returned. 0 indicates that there are no result sets.
IS_USER_DEFINED_CAST VARCHAR(3)
Nullable
 Identifies whether the this function is a cast function created when a distinct type was created.
NO
This function is not a cast function.
YES
This function is a cast function.

Contains the null value if the routine is not a function.
IS_IMPLICITLY_INVOCABLE VARCHAR(3)
Nullable
 Identifies whether the this function is a cast function created when a distinct type was created and can be implicitly invoked.
NO
This function is not a cast function.
YES
This function is a cast function and can be implicitly invoked.

Contains the null value if the routine is not a function.
SECURITY_TYPE VARCHAR(22)
Nullable
 Reserved. Contains 'IMPLEMENTATION DEFINED' if this is an external routine.

Contains the null value if the routine is not an external routine.
TO_SQL_SPECIFIC_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
TO_SQL_SPECIFIC_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
TO_SQL_SPECIFIC_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
AS_LOCATOR VARCHAR(3)
Nullable
 Indicates whether the result was specified as a locator.
NO
The parameter was not specified as a locator.
YES
The parameter was specified as a locator.

Contains the null value if this is not a scalar function.
CREATED TIMESTAMP Identifies the timestamp when the routine was created.
LAST_ALTERED TIMESTAMP
Nullable
 Reserved. Contains 'CREATED'.
NEW_SAVEPOINT_LEVEL VARCHAR(3)
Nullable
 Indicates whether the routine starts a new savepoint level.
NO
A new savepoint level is not started when the procedure is called.
YES
A new savepoint level is started when the procedure is called.

Contains the null value if this is not a function.
IS_UDT_DEPENDENT VARCHAR(3) Indicates whether the routine is dependent on a UDT.
NO
The routine is not dependent on a UDT.
YES
The routine is dependent on a UDT.
RESULT_CAST_FROM_DATA_TYPE VARCHAR(128)
Nullable
 Type of the parameter:
BIGINT
Big number
INTEGER
Large number
SMALLINT
Small number
DECIMAL
Packed decimal
NUMERIC
Zoned decimal
DOUBLE PRECISION
Floating point; DOUBLE PRECISION
REAL
Floating point; REAL
CHARACTER
Fixed-length character string
CHARACTER VARYING
Varying-length character string
CHARACTER LARGE OBJECT
Character large object string
GRAPHIC
Fixed-length graphic string
GRAPHIC VARYING
Varying-length graphic string
DOUBLE-BYTE CHARACTER LARGE OBJECT
Double-byte character large object string
BINARY
Fixed-length binary string
BINARY VARYING
Varying-length binary string
BINARY LARGE OBJECT
Binary large object string
DATE
Date
TIME
Time
TIMESTAMP
Timestamp
DATALINK
Datalink
ROWID
Row ID
USER-DEFINED
Distinct Type
RESULT_CAST_AS_LOCATOR VARCHAR(3)
Nullable
 Indicates whether the result is cast from a locator.
NO
The result is not cast from a locator.
YES
The result is cast from a locator.
RESULT_CAST_CHAR_MAX_LENGTH INTEGER
Nullable
 Maximum length of the string for binary, character, and graphic string data types.

Contains the null value if the parameter is not a string.
RESULT_CAST_CHAR_OCTET_LENGTH INTEGER
Nullable
 Number of bytes for binary, character, and graphic string data types.

Contains the null value if the parameter is not a string.
RESULT_CAST_CHAR_SET_CATALOG VARCHAR(128)
Nullable
 Relational database name

Contains the null value if the column is not a string.
RESULT_CAST_CHAR_SET_SCHEMA VARCHAR(128)
Nullable
 The schema name of the character set. Contains 'SYSIBM'.

Contains the null value if the column is not a string.
RESULT_CAST_CHAR_SET_NAME VARCHAR(128)
Nullable
 The character set name.

Contains the null value if the column is not a string.
RESULT_CAST_COLLATION_CATALOG VARCHAR(128)
Nullable
 Relational database name

Contains the null value if the column is not a string.
RESULT_CAST_COLLATION_SCHEMA VARCHAR(128)
Nullable
 The schema of the collation. SYSIBM is returned.

Contains the null value if the column is not a string.
RESULT_CAST_COLLATION_NAME VARCHAR(128)
Nullable
 The collation name. IBMBINARY is returned.

Contains the null value if the column is not a string.
RESULT_CAST_NUMERIC_PRECISION INTEGER
Nullable
 The precision of all numeric parameters.

Note:
This column supplies the precision of all numeric data types, including single-and double-precision floating point. The NUMERIC_PRECISION_RADIX column indicates if the value in this column is in binary or decimal digits.

Contains the null value if the parameter is not numeric.
RESULT_CAST_NUMERIC_RADIX INTEGER
Nullable
 Indicates if the precision specified in column NUMERIC_PRECISION is specified as a number of binary or decimal digits:
2
Binary; floating-point precision is specified in binary digits.
10
Decimal; all other numeric types are specified in decimal digits.

Contains the null value if the parameter is not numeric.
RESULT_CAST_NUMERIC_SCALE INTEGER
Nullable
 Scale of numeric data.

Contains the null value if not decimal, numeric, or binary parameter.
RESULT_CAST_DATETIME_PRECISION INTEGER
Nullable
 The fractional part of a date, time, or timestamp.
0
For DATE and TIME data types
6
For TIMESTAMP data types (number of microseconds).

Contains the null value if the parameter is not a date, time, or timestamp.
RESULT_CAST_INTERVAL_TYPE VARCHAR(128)
Nullable
 Reserved. Contains the null value.
RESULT_CAST_INTERVAL_PRECISION INTEGER
Nullable
 Reserved. Contains the null value.
RESULT_CAST_TYPE_UDT_CATALOG VARCHAR(128)
Nullable
 The relational database name if this is a distinct type.

Contains the null value if this is not a distinct type.
RESULT_CAST_TYPE_UDT_SCHEMA VARCHAR(128)
Nullable
 The name of the schema if this is a distinct type.

Contains the null value if this is not a distinct type.
RESULT_CAST_TYPE_UDT_NAME VARCHAR(128)
Nullable
 The name of the distinct type.

Contains the null value if this is not a distinct type.
RESULT_CAST_SCOPE_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
RESULT_CAST_SCOPE_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
RESULT_CAST_SCOPE_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
RESULT_CAST_MAX_CARDINALITY INTEGER
Nullable
 Reserved. Contains the null value.
RESULT_CAST_DTD_IDENTIFIER VARCHAR(128)
Nullable
 A unique internal identifier for the parameter.

SCHEMATA

The SCHEMATA view contains one row for each schema. The following table describes the columns in the view:

Table 160. SCHEMATA view
Column Name Data Type Description
CATALOG_NAME VARCHAR(128) Relational database name
SCHEMA_NAME VARCHAR(128) Name of the schema
SCHEMA_OWNER VARCHAR(128) Owner of the schema
DEFAULT_CHARACTER_SET_CATALOG VARCHAR(128) Relational database name
DEFAULT_CHARACTER_SET_SCHEMA VARCHAR(128) The schema name of the default character set. Contains 'SYSIBM'.
DEFAULT_CHARACTER_SET_NAME VARCHAR(128) The default character set name.
SQL_PATH VARCHAR(4096)
Nullable
 Reserved. Contains the null value.

SQL_FEATURES

The SQL_FEATURES table contains one row for each feature supported by the database manager. The following table describes the columns in the table:

Table 161. SQL_FEATURES table
Column Name Data Type Description
FEATURE_ID VARCHAR(7)
Nullable
 ANS and ISO feature ID
FEATURE_NAME VARCHAR(128) The name of the ANS and ISO feature.
SUB_FEATURE_ID VARCHAR(7)
Nullable
 ANS and ISO subfeature ID
SUB_FEATURE_NAME VARCHAR(256) The name of the ANS and ISO subfeature.
IS_SUPPORTED VARCHAR(3) Indicates whether the feature is supported:
YES
This feature is supported.
NO
This feature is not supported.
IS_VERIFIED_BY VARCHAR(128)
Nullable
 Reserved. Contains the null value.
COMMENTS VARCHAR(2000)
Nullable
 Reserved. Contains the null value.

SQL_LANGUAGES

The SQL_LANGUAGES table contains one row for every SQL language binding and programming language for which conformance is claimed. The following table describes the columns in the SQL_LANGUAGES table:

Table 162. SQL_LANGUAGES table
Column Name Data Type Description
SQL_LANGUAGE_SOURCE VARCHAR(254) Name of the standard.
SQL_LANGUAGE_YEAR
VARCHAR(254)
 Year in which the standard was approved.
SQL_LANGUAGE_CONFORMANCE
VARCHAR(254)
Nullable
 Level of conformance.
2
For the 1987 and 1989 standards, indicates that Level 2 conformance is claimed.
ENTRY
For the 1992 standard, indicates that Entry Level conformance is claimed.
CORE
For the 1999 standard, indicates that Core Level is conformance is claimed.

Contains the null value if conformance is not yet claimed.
SQL_LANGUAGE_INTEGRITY
VARCHAR(254)
Nullable
 Support of the integrity feature.
YES
conformance is claimed to the integrity feature
NO
conformance is not claimed to the integrity feature

Contains the null value if the standard does not have a separate integrity feature.
SQL_LANGUAGE_IMPLEMENTATION
VARCHAR(254)
Nullable
 Reserved. Contains the null value.
SQL_LANGUAGE_BINDING_STYLE
VARCHAR(254)
 The style of binding of the SQL language
EMBEDDED
support for embedded SQL for the language in
SQL_LANGUAGE_PROGRAMMING_LANG
DIRECT
DIRECT SQL is supported (for example Interactive SQL)
CLI
Support for CLI for the language in
SQL_LANGUAGE_PROGRAMMING_LANG
SQL_LANGUAGE_PROGRAMMING_LANG
VARCHAR(254)
Nullable
 The language supported by EMBEDDED or CLI.
C
The C language is supported.
COBOL
The COBOL language is supported.
PLI
The PL/I language is supported.

Contains the null value if the SQL_LANGUAGE_BINDING_STYLE is DIRECT.

SQL_SIZING

The SQL_SIZING table contains one row for each limit supported by the database manager. The following table describes the columns in the table:

Table 163. SQL_SIZING table
Column Name Data Type Description
SIZING_ID INTEGER ANS and ISO sizing ID
SIZING_NAME VARCHAR(128) Name of the ANS and ISO sizing.
SUPPORTED_VALUE BIGINT
Nullable
 Indicates the sizing limit.

Contains the null value if the sizing limit is not applicable.
COMMENTS VARCHAR(2000)
Nullable
 Reserved. Contains the null value.

TABLE_CONSTRAINTS

The TABLE_CONSTRAINTS view contains one row for each constraint. The following table describes the columns in the view:

Table 164. TABLE_CONSTRAINTS view
Column Name Data Type Description
CONSTRAINT_CATALOG VARCHAR(128) Relational database name
CONSTRAINT_SCHEMA VARCHAR(128) Name of the schema containing the constraint.
CONSTRAINT_NAME VARCHAR(128) Name of the constraint.
TABLE_CATALOG VARCHAR(128) Relational database name
TABLE_SCHEMA VARCHAR(128) Name of the schema containing the table.
TABLE_NAME VARCHAR(128) Name of the table which the constraint is created over.
CONSTRAINT_TYPE VARCHAR(11) Constraint Type
  • CHECK
  • UNIQUE
  • PRIMARY KEY
  • FOREIGN KEY
IS_DEFERRABLE VARCHAR(3) Indicates whether the constraint checking can be deferred. Contains 'NO'.
INITIALLY_DEFERRED VARCHAR(3) Indicates whether the constraint was defined as initially deferred. Contains 'NO'.

TABLES

The TABLES view contains one row for each table, view, and alias. The following table describes the columns in the view:

Table 165. TABLES view
Column Name Data Type Description
TABLE_CATALOG VARCHAR(128) Relational database name
TABLE_SCHEMA VARCHAR(128) Name of the SQL schema that contains the table, view or alias.
TABLE_NAME VARCHAR(128) Name of the table, view or alias.
TABLE_TYPE VARCHAR(24) Indicates the type of the table:
ALIAS
The table is an alias.
BASE TABLE
The table is an SQL table or physical file.
MATERIALIZED QUERY TABLE
The object is a materialized query table.
VIEW
The table is an SQL view or logical file.
SELF_REFERENCING_COLUMN_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
REFERENCE_GENERATION VARCHAR(128)
Nullable
 Reserved. Contains the null value.
USER_DEFINED_TYPE_CATALOG VARCHAR(128)
Nullable
 Reserved. Contains the null value.
USER_DEFINED_TYPE_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains the null value.
USER_DEFINED_TYPE_NAME VARCHAR(128)
Nullable
 Reserved. Contains the null value.
IS_INSERTABLE_INTO VARCHAR(3) Identifies whether an INSERT is allowed on the table.
NO
An INSERT is not allowed on this table.
YES
An INSERT is allowed on this table.

USER_DEFINED_TYPES

The USER_DEFINED_TYPES view contains one row for each distinct type.111 The following table describes the columns in the view:

Table 166. USER_DEFINED_TYPES view
Column Name Data Type Description
USER_DEFINED_TYPE_CATALOG VARCHAR(128) Relational database name
USER_DEFINED_TYPE_SCHEMA VARCHAR(128) Schema name of the distinct type.
USER_DEFINED_TYPE_NAME VARCHAR(128) Name of the user that created the distinct type.
USER_DEFINED_TYPE_CATEGORY VARCHAR(128) Indicates the type of user-defined type. Contains 'DISTINCT'.
IS_INSTANTIABLE VARCHAR(3) Reserved. Contains 'YES'.
IS_FINAL VARCHAR(3) Reserved. Contains 'YES'.
ORDERING_FORM VARCHAR(4) Indicates what kind of predicates are allowed when this distinct type is a comparand:
FULL
All predicates are allowed.
NONE
No predicates are allowed
ORDERING_CATEGORY VARCHAR(8) Reserved. Contains 'MAP'.
ORDERING_ROUTINE_CATALOG VARCHAR(128)
Nullable
 Relational database name

Contains the null value if the ORDERING_FORM is 'NONE'.
ORDERING_ROUTINE_SCHEMA VARCHAR(128)
Nullable
 Reserved. Contains 'SYSIBM'.

Contains the null value if the ORDERING_FORM is 'NONE'.
ORDERING_ROUTINE_NAME VARCHAR(128)
Nullable
 Reserved. Contains a data type name.

Contains the null value if the ORDERING_FORM is 'NONE'.
REFERENCE_TYPE VARCHAR(16)
Nullable
 Reserved. Contains the null value.
DATA_TYPE VARCHAR(128)
Nullable
 Source data type of the distinct type:
BIGINT
Big number
INTEGER
Large number
SMALLINT
Small number
DECIMAL
Packed decimal
NUMERIC
Zoned decimal
DOUBLE PRECISION
Floating point; DOUBLE PRECISION
REAL
Floating point; REAL
CHARACTER
Fixed-length character string
CHARACTER VARYING
Varying-length character string
CHARACTER LARGE OBJECT
Character large object string
GRAPHIC
Fixed-length graphic string
GRAPHIC VARYING
Varying-length graphic string
DOUBLE-BYTE CHARACTER LARGE OBJECT
Double-byte character large object string
BINARY
Fixed-length binary string
BINARY VARYING
Varying-length binary string
BINARY LARGE OBJECT
Binary large object string
DATE
Date
TIME
Time
TIMESTAMP
Timestamp
DATALINK
Datalink
ROWID
Row ID
USER-DEFINED
Distinct Type
CHARACTER_MAXIMUM_LENGTH INTEGER
Nullable
 Maximum length of the distinct type for binary, character, and graphic string data types.

Contains the null value if the distinct type is not a string.
CHARACTER_OCTET_LENGTH INTEGER
Nullable
 Number of bytes of the distinct type for binary, character, and graphic string data types.

Contains the null value if the distinct type is not a string.
CHARACTER_SET_CATALOG VARCHAR(128)
Nullable
 Relational database name of the distinct type.

Contains the null value if the distinct type is not a string.
CHARACTER_SET_SCHEMA VARCHAR(128)
Nullable
 The schema name of the character set of the distinct type. Contains 'SYSIBM'.

Contains the null value if the distinct type is not a string.
CHARACTER_SET_NAME VARCHAR(128)
Nullable
 The character set name of the distinct type.

Contains the null value if the distinct type is not a string.
COLLATION_CATALOG VARCHAR(128)
Nullable
 Relational database name of the distinct type.

Contains the null value if the distinct type is not a string.
COLLATION_SCHEMA VARCHAR(128)
Nullable
 The schema of the collation of the distinct type. SYSIBM is returned.

Contains the null value if the distinct type is not a string.
COLLATION_NAME VARCHAR(128)
Nullable
 The collation name of the distinct type. IBMBINARY is returned.

Contains the null value if the distinct type is not a string.
NUMERIC_PRECISION INTEGER
Nullable
 The precision of the distinct type.

Note:
This column supplies the precision of all numeric data types, including single-and double-precision floating point. The NUMERIC_PRECISION_RADIX column indicates if the value in this column is in binary or decimal digits.

Contains the null value if the distinct type is not numeric.
NUMERIC_PRECISION_RADIX INTEGER
Nullable
 Indicates if the precision specified in column NUMERIC_PRECISION is specified as a number of binary or decimal digits:
2
Binary; floating-point precision is specified in binary digits.
10
Decimal; all other numeric types are specified in decimal digits.

Contains the null value if the distinct type is not numeric.
NUMERIC_SCALE SMALLINT
Nullable
 Scale of numeric distinct type.

Contains the null value if the distinct type is not decimal, numeric, or binary.
DATETIME_PRECISION INTEGER
Nullable
 The fractional part of a date, time, or timestamp distinct type.
0
For DATE and TIME data types
6
For TIMESTAMP data types (number of microseconds).

Contains the null value if the distinct type is not date, time, or timestamp.
INTERVAL_TYPE VARCHAR(128)
Nullable
 Reserved. Contains the null value.
INTERVAL_PRECISION INTEGER
Nullable
 Reserved. Contains the null value.
SOURCE_DTD_IDENTIFIER VARCHAR(128)
Nullable
 A unique internal identifier for the source data type.

Contains the null value if the distinct type is not sourced on another distinct type.
REF_DTD_IDENTIFIER VARCHAR(256)
Nullable
 Reserved. Contains the null value.

VIEWS

The VIEWS view contains one row for each view. The following table describes the columns in the view:

Table 167. VIEWS view
Column Name Data Type Description
TABLE_CATALOG VARCHAR(128) Relational database name
TABLE_SCHEMA VARCHAR(128) Name of the SQL schema that contains the view.
TABLE_NAME VARCHAR(128) Name of the view.
VIEW_DEFINITION CLOB(2M)
Nullable
 The query expression portion of the CREATE VIEW statement.
CHECK_OPTION VARCHAR(8) The check option used on the view
NONE
No check option was specified
LOCAL
The local option was specified
CASCADED
The cascaded option was specified
IS_UPDATABLE VARCHAR(3) Specifies if the view is updatable:
YES
The view is updatable
NO
The view is read-only
111.
This view does not contain information about built-in data types.


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