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⇱ QSYS2.SYSCOLUMNSTAT enhanced for variable length columns


QSYS2.SYSCOLUMNSTAT enhanced for variable length columns

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Abstract

Database engineers (DBE) understand the importance of not taking the default value for the ALLOCATE clause on columns with a variable length data type.
With this advancement to SYSCOLUMNSTAT, the DBE can leverage built-in statistical detail when making a decision on whether or not to adjust the amount of space dedicated in the fixed portion of the record.

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You are in: IBM i Technology Updates > Db2 for i - Technology UpdatesDb2 for i Database Engineer (DBE) Enhancements >QSYS2.SYSCOLUMNSTAT enhanced for variable length columns

 

 👁 allocate clause

Note: While it is commonplace for column statistics to exist for a column, they are not guaranteed to exist or be completely up to date.
Users can force the (re) population of column statistics: Refreshing the column statistics collection.

For complete detail, visit this IBM Documentation page: SYSCOLUMNSTAT
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Document Information

Modified date:
22 March 2025

UID

ibm16828127