文档解释 ORA-29820: the statistics type is not present Cause: The statistics type which is being associated with object(s) is not present. Action: E……

文档解释 ORA-38444: statistics do not exist for the expression set Cause: An attempt was made to clear the statistics that do not exist. Action: No ……

MSSQL维护计划是Microsoft SQL Server的核心功能之一，可以定期地检查、更新和修复数据库。其主要目的是确保数据库始终处于可用、可靠的状态，并确保功能和性……

文档解释 ORA-29811: missing STATISTICS keyword Cause: This is not a valid option with the ASSOCIATE command. Action: Specify STATISTICS keyword afte……

文档解释 ORA-15510: cannot perform operation when “STATISTICS_LEVEL” is “BASIC” Cause: The STATISTICS_LEVEL initialization parameter was set to BASI……

文档解释 ORA-56709: timed_statistics set to FALSE Cause: timed_statistics parameter in database is set to FALSE. Needs to be enabled for calibration……

文档解释 ORA-29938: both indextype and statistics type should be system-managed Cause: Either an ASSOCIATE STATISTICS WITH SYSTEM MANAGED STORAGE TA……