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+HISTORY

The +HISTORY parameter specifies whether to write and what type of statistics to write to the Db2 Catalog history tables. This parameter is used by BMC AMI Stats and all BMC AMI Utilities that update statistics.

You can set +HISTORY in the BMC AMI Utilities configuration to specify the default value for your installation. The BMC configured default value is ALL. You can override +HISTORY by specifying HISTORY in the SYSIN DD statement.

value

Specify one of the following values for value:

Value	Description
ALL or A	(SPE2010 ) (Default) Writes to the Db2 catalog history tables both access path and space statistics
NONE or N	Does not write statistics to the Db2 catalog history tables
PATH or P	Writes to the Db2 catalog history tables only the statistics that the Db2 optimizer uses
SPACE or S	Writes to the Db2 catalog history tables only space-related statistics
DFLT or D	Use the value from the DB2 ZPARM STATHIST parameter to control the HISTORY option. Following are the values for DB2 ZPARM STATHIST: NONE ACCESPATH SPACE ALL

For an example of this parameter, see Using BMC AMI Stats.

Important

A +HISTORY value is a PATH
An associated STATHIST value is an ACCESSPATH
NGTSTATS evaluates STATSHIST=ACCESSPATH as a PATH

Important

For the rules that apply to parameter syntax, see Parameter syntax rules.

Tip

You can use the HISTORY option in the SYSIN statement to set this value.

+HISTORY

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