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GET_TABLE_SIZE_INFO_DB2 -

GET_TABLE_SIZE_INFO_DB2 -

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Functionality

This function module provides information on the size of a given table and the indexes defined on it.

Table information is taken from the DB2 catalog:

  • NAME: Table name
  • CREATOR: Authorization ID under which the table was created
  • CARDF: Number of entries in the table
  • NPAGES: Number of pages on which rows of the table appear
  • PGSIZE: Size of pages in KB
  • STATSTIME: Timestamp of the last RUNSTATS run

The fields CARDF and NPAGES are maintained in the DB2 catalog using the RUNSTATS utility. For both fields, the initial value is -1.

In addition, a table is returned which shows the size of the indexspaces in KB for each index defined on the table. The sizes are determined using OS/390 utilities during the update of transaction DB02. The parameter LISTTIME displays the date and time of the last analysis.

The parameter INDEXES_NOT_FOUND provides the number of indexes for which size information could not be determined. This can occur when, for example, an index is created after the last update of transaction DB02.

Example

Notes

Further information





Parameters

CREATOR
INDEXES_NOT_FOUND
INDEX_SIZE_LIST
TABLE_INFO
TABLE_NAME

Exceptions

TABLE_NOT_FOUND

Function Group

S390

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