Oracle Solaris Performance, Panics, Hangs, and Dtrace (MOSC)

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Production Deployment issue: changing column data type from Varchar2 to NVarchar2

edited Sep 4, 2017 5:02AM in Oracle Solaris Performance, Panics, Hangs, and Dtrace (MOSC) 3 commentsAnswered

Hi Guys,

I am facing issue on production deployment, its just need to change data type from Varchar2 to NVarchar2. As much i know DDL commands don't touch data rather just interact with Schema of object, i run a command "ALTER TABLE UMS.ums_usage_conf  MODIFY (LDR_NAME NVARCHAR2(255), RES_NAME  NVARCHAR2(60));" This command was taking about 18 hour to complete on DEV/QA Environment and failing after running 11 hours.

Its would be your great help if anyone of you may help giving me way to reduce deployment time.

Regards,

Rajeev Sharma

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