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Query Slow For FTS Showing High Scattered Read After Migrate & Upgrade From To (Doc ID 2322391.1)

Last updated on NOVEMBER 07, 2019

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


Query slow for FTS showing High scattered read after upgrade from to in target DB and both have same explain plain. Table having CLOB Data. Source DB was in physical server and traget upgraded DB in vBlock using RHEL7 .

Source DB ( - From sqlplus or toad query execute within 1 sec .


 Changing the storage device and loading data into the table so frequently.


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