What's new for V5R4

The major new features covered in this book include:

• ISO timestamp format
• Blanks in hex literals
• SESSION_USER, SYSTEM_USER, CURRENT DEBUG MODE, and CURRENT DEGREE special registers
• Fullselect in a subquery and scalar fullselect
• Recursive common table expressions and recursive views
• ROW_NUMBER and RANK OLAP specifications
• row-value-expressions in predicates
• ENCRYPT_TDES, GENERATE_UNIQUE, and RAISE_ERROR scalar functions
• ADD_MONTHS, LAST_DAY, NEXT_DAY, and VARCHAR_FORMAT scalar functions
• STDDEV_SAMP and VARIANCE_SAMP aggregation functions
• ORDER OF in ORDER BY
• USE AND KEEP EXCLUSIVE LOCKS
• ALLOCATE DESCRIPTOR, DEALLOCATE DESCRIPTOR, GET DESCRIPTOR, and SET DESCRIPTOR
• ALTER PROCEDURE
• ALTER TABLE ACTIVATE NOT LOGGED
• Materialized Query Tables (optimizer awareness)
• VOLATILE tables
• PAGESIZE index option
• INSTEAD OF triggers
• DESCRIBE INPUT
• LABEL ON INDEX
• SET CURRENT DEBUG MODE
• SET CURRENT DEGREE
• SET SESSION AUTHORIZATION
• 2MB SQL statements
• 128 byte column names
• 32K key and ORDER BY length
• 1024 parameters for C, C++, and SQL procedures
• 1000 tables in an SQL statement
• Greater than 31 subqueries in an SQL statement
• XA support over DRDA®
• ILE RPG Precompiler support for free-form RPG