Mainframe Blog

Updatable Catalog Statistics in Db2 12

< 1 minute read
Stephen Watts

Catalog statistics that updatable and used for access path selection

Table Statistics
SYSIBM.SYSCOLDIST CARDF
COLGROUPCOLNO
COLVALUE
FREQUENCYF
HIGHVALUE
LOWVALUE
NUMCOLUMNS
QUANTILENO
TYPE
SYSIBM.SYSCOLSTATS COLCARD
HIGHKEY
LOWKEY
PARTITION
SYSIBM.SYSCOLUMNS COLCARDF
HIGH2KEY
LOW2KEY
SYSIBM.SYSINDEXES CLUSTERRATIOF
FIRSTKEYCARDF
FULLKEYCARDF
NLEAF
NLEVELS
DATAREPEATFACTORF
SYSIBM.SYSINDEXSTATS DATAREPEATFACTORF
SYSIBM.SYSKEYTARGETS HIGH2KEY
LOW2KEY
STATS_FORMAT
SYSIBM.SYSKEYTGTDIST CARDF
KEYGROUPKEYNO
KEYVALUE
FREQUENCYF
HIGHVALUE
LOWVALUE
NUMKEYS
QUANTILENO
TYPE
SYSIBM.SYSROUTINES CARDINALITY
INITIAL_INSTS
INITIAL_IOS
INSTS_PER_INVOC
IOS_PER_INVOC
SYSIBM.SYSTABLES CARDF
NPAGES
NPAGESF
PCTROWCOMP
SYSIBM.SYSTABLESPACE NACTIVEF
SYSIBM.SYSTABSTATS CARDF
NPAGES

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About the author

Stephen Watts

Stephen Watts (Birmingham, AL) has worked at the intersection of IT and marketing for BMC Software since 2012.

Stephen contributes to a variety of publications including CIO.com, Search Engine Journal, ITSM.Tools, IT Chronicles, DZone, and CompTIA.