Things are different in Oracle Database 12c with multitenancy option. My most recent example: I tried to import a schema (new name “NEWSCHEMA”) with datapump IMPDP and REMAP_SCHEMA into the same pluggable database it has been exported from with EXPDP immediately before (name “OLDSCHEMA”), running as SYSTEM. I’m doing things like that with DBA permissions, since […]
Month: January 2015
Oracle: Did my SQL get worse over time? (AWR query)
Sometimes, we get statements to look at, and are told “it’s getting worse and worse”. Since DBAs are well advised not to take anything for granted and only to believe what they see with own eyes, here comes a SQL on AWR to see Buffer Gets per Minute, over time. select s.BEGIN_INTERVAL_TIME, round(t.BUFFER_GETS_DELTA/ 0.0001+ (extract […]