## COMMANDCACHESTATISTICSRESET

### Definition

The system table COMMANDCACHESTATISTICSRESET contains statistical information about the activities of the command cache since the last RESET COMMANDCACHESTATISTICS or RESET ALL. The command cache contains the SQL statements and their execution plans shared by different database sessions (the following refers to the SQL statement and execution plan collectively as a command).

### Structure

COMMANDCACHESTATISTICSRESET

RESETDATE | TIMESTAMP | Time of the last RESET for these entries
USABLESIZE | FIXED(10) | Size of the command cache (KB)
MAXUSEDSIZE | FIXED(10) | Maximum used area of the command cache (KB)
MAXUSEDSIZEPERCENTAGE | FIXED(3) | Maximum used area of the command cache (%)
MAXCOMMANDCOUNT | FIXED(10) | Maximum number of stored commands
INSERTCOMMANDCOUNT | FIXED(10) | Number of inserts
DELETECOMMANDCOUNT | FIXED(10) | Number of deletes
FAILEDALLOCATECOUNT | FIXED(10) | Number of memory requests not fulfilled
CLEANUPCOUNT | FIXED(10) | Number of operations that encountered a lack of space in the main memory
CLEANUPCOMMANDCOUNT | FIXED(10) | Number of commands modified due to lack of space in the main memory
INVALIDATECOUNT | FIXED(10) | Number of data definition statements that made execution plans invalid
UNLOADSTATEMENTCOUNT | FIXED(10) | Number of SQL statements displaced to disk
RELOADSTATEMENTCOUNT | FIXED(10) | Number of SQL statements reloaded to the main memory
DELETEPLANCOUNT | FIXED(10) | Number of execution plans deleted due to lack of space in the main memory
MAXUSEDHASHTABLESLOTCOUNT | FIXED(5) | Maximum number of used slots in the hash table
MAXHASHTABLECHAINENTRYCOUNT | FIXED(5) | Maximum length of the hash entry overflow chains

See also:

COMMANDCACHESTATISTICS