Drop Column Very Slow
Last updated on NOVEMBER 30, 2017
Applies to:Oracle Database - Enterprise Edition - Version 220.127.116.11 to 18.104.22.168 [Release 11.2]
Oracle Database - Enterprise Edition - Version 22.214.171.124 to 126.96.36.199 [Release 11.2]
Information in this document applies to any platform.
***Checked for relevance on 09-Sep-2016***
Slow alter table drop column in 11.2 database.
10046 (sql_trace) shows a background query responsible for the slow , similar to :
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