日期:2014-05-16  浏览次数:20472 次

DB2 降低高水位线、刷新统计信息
db2 connect to DBNAME
db2 reorg table SCHEMANAME.TABLENAME allow read access
db2 runstats on table SCHEMANAME.TABLENAME on all columns with distribution and detailed indexes all

查看统计信息使用:
db2 "SELECT CARD,STATS_TIME FROM SYSCAT.TABLES WHERE TABNAME = 'TABLENAME'"

查看高水位线使用:
db2 list tablespaces show detail