i5/OS function support for CCSIDs

The server provides support for CCSIDs in the functions as shown in the table.

Function Description of support
CL commands Some control language (CL) commands have internal functions that support CCSID conversions. For more information about CL commands that support CCSID conversions, see the CL Reference topic.
Copy Coded character set identifier (CCSID) support is built into the copy function. The Copy File (CPYF) and Copy from Query File (CPYFRMQRYF) commands support CCSIDs. To use the CPYF command to change a physical file, see Changing the CCSID of a physical file. The Copy Source File (CPYSRCF) command supports CCSID conversion.
Database management Database management support provides default coded character set identifier (CCSID) values for database files on the server. See the Database management topic for details.
DDM Coded character set identifier (CCSID) support is built into distributed data management (DDM). DDM provides support to pass CCSID tags in homogeneous environments. DDM passes a CCSID parameter when sending files. With DDM, you can also specify a CCSID when creating files on a remote system. DDM only converts data to the job CCSID of the source system when:
  • The source and target systems are iSeries™ servers.
  • The source and target systems are at an operating system level of Version 2 Release 1.1 or later.

Program-described files are always created with a CCSID of 65535 if they are created:

  • On a target AS/400® system on a release level from Version 2 Release 1.1 through Version 2 Release 3
  • From a source system that is not an iSeries server
  • From a source system that is an AS/400 system at a release level before Version 2 Release 1.1

You can use the Submit Remote Command (SBMRMTCMD) command on a source iSeries server to change the file CCSID (externally described files only) by specifying the CHGPF command and the CCSID parameter.
DDS Coded character set identifier (CCSID) support is built into data description specifications (DDS). DDS supports file-level and field-level CCSID keywords for all character fields in physical files. DDS also supports file-level and field-level keywords for all DBCS fields in physical files.
Distributed relational database Coded character set identifier (CCSID) support is built into distributed relational database. Distributed relational database passes the CCSID of an application requester (AR) job to an application server (AS) job and vice versa during connect processing. Distributed relational database also performs a conversion of error information and text-describing fields according to the job CCSID.

Distributed relational database uses CCSID information to determine how to build data exchanged between application requester jobs and application server jobs. It also uses CCSID information to describe data exchanged between application requester jobs and application server jobs (for example, a format description).
IDDU Coded character set identifier (CCSID) support is built into interactive data definition utility (IDDU). Interactive data definition utility provides support to specify a CCSID for a character field or a DBCS field.
Open Query File (OPNQRYF) Coded character set identifier (CCSID) support is built into i5/OS™ query. You can use the Open Query File (OPNQRYF) command to specify a CCSID on the MAPFLD parameter. The MAPFLD parameter specifies the definition of query fields that are either mapped to, or derived from, other fields.

i5/OS query supports CCSID conversion on CHAR, OPEN, EITHER, and UCS-2 graphic field operators for join, record selection, group-by, and minimum or maximum values functions. CCSID conversion is performed whenever fields do not have the same CCSID value. After the query is opened, database management support converts data read or written to the database files as described in the Database Management topic.

i5/OS query does not support CCSID conversion if at least one of the fields is assigned a CCSID of 65535.
Query management Coded character set identifier (CCSID) support is built into query management. Query management assigns a CCSID to queries and forms. Query management:
  • Converts queries to the job CCSID.
  • Presents data to the display device using the job CCSID.
  • Assigns a CCSID to the files it creates.
SNA Coded character set identifier (CCSID) support is built into SNA Distributed Services (SNADS). SNADS supports CCSIDs by any user ID, system name, or destination queue name. However, other SNADS services such as SNDNETF do not provide CCSID conversion.
Work management Work management support provides the function to assign or change coded character set identifier (CCSID) values at three different levels. See the Work management topic for details.
Workstations The workstation management function provides support for display files, printer files, and panel groups. See the Workstation function management topic for details.
Start of changeMessage managementEnd of change Start of changeCoded character set identifier (CCSID) support is built into the system's message support. Use CCSID support for handling messages and message catalogs on i5/OS:
  • You can send messages tagged with one CCSID to users with a different CCSID.
  • You can use CCSID support to handle messages by using commands and application programming interfaces.
End of change
Parent topic: Work with CCSIDs
Related concepts
Changing the CCSID of a physical file
Related reference
Control language (CL)
Copy File (CPYF) command
Copy From Query File (CPYFRMQRYF) command
Copy Source File (CPYSRCF) command
Submit Remote Command (SBMRMTCMD) command
Change Physical File (CHGPF) command
Open Query File (OPNQRYF) command