Download DB2 for z/OS Version 8 DBA Certification Guide by Susan Lawson PDF

By Susan Lawson

IBM Gold advisor Susan Lawson provides hundreds and hundreds of useful options, specialist instructions, and priceless advice for each side of DB2 UDB database management, together with database implementation, operation, restoration, safety, auditing, functionality, set up, migration, SQL, and extra.

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Rows in this table can be inserted, updated, and deleted. Records dependencies on check constraints or user-defined defaults for a column. Contains information needed for recovery. Contains one row for each database, except for database DSNDB01. Contains one row for each distinct type defined to the system. Records the privileges held by users over databases. Contains one row for each DBRM of each application plan. Contains one row. The table is used for SQL statements in which a table reference is required, but the contents of the table are not important.

In enable new-function mode (ENFM), you make extensive changes to the catalog. For the most part, fallback to version 7 is impossible unless a complete restore of the subsystem is performed. To begin this mode, all DB2 members in data sharing have to running in be V8 COMPAT mode. 3. In new-function mode (NFM), you are fully on DB2 V8 and have all new features. Fallback to version 7 is impossible. All DB2 data sharing members have to be in ENFM mode before you can migrate them. The three modes of migration provide • Reduced risk.

NOTE Unicode ordering is different from EBCDIC. An online REORG of most of the catalog and one directory table space must also occur during this mode. The DSNTIJNE job is then executed in several steps, which include the following actions: • ENFM0000. * utilities. • ENFM0001. Update catalog for new mode (for every table space(18)). • ENFMnnnn0. Test for conversion, do DDL Alters (* exclusive locking *). • ENFM00001. Delete old data sets. • ENFM00003. Define new data sets. • ENFM00007. REORG and fix.

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