***UNDER STRICT EMBARGO UNTIL 00.01 ON 11 DECEMBER, 2013 GMT***DOCTOR WHO XMAS SPECIAL 2013 0

Deprecated, Discontinued, and Changed Defined for DB2

With each new release of DB2, there is a list of three different categories of old functionality that is somehow different in the new version. The use of these terms can be confusing if you don’t look at them every day. Discontinued Discontinued means that a feature or function is no longer available. If you try to use it, it...

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DB2 Basics: Security

This post is not meant to be a comprehensive coverage of security, but an overview such that those newer to DB2 know what areas they may want to research further. Users, Authentication, and Authorization I’ve already covered this in some detail in DB2 Basics: Users, Authentication, and Authorization. In general, keep the permissions that you allow any user or group...

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Using DB2’s ADMIN_MOVE_TABLE to Move Tables from One Tablespace to Another

What is ADMIN_MOVE_TABLE ADMIN_MOVE_TABLE is an administrative stored procedure introduced in DB2 9.7. The intent is to provide a tool that can be used to perform an online move of a table, while transactions are still occurring against the table. Moves can be used to change what tablespace a table is in, convert a table to MDC, change the table...

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Calculating Row Width and Choosing a Page Size in DB2

A DB2 DBA must be able to calculate the row width. The row width can be used to estimate table size, and also to pick a tablespace with the correct page size. DB2 is more strict about a row fitting on a page. For general purposes, a DB2 table must be in a tablespace where any row, minus LOBs fits...