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ORA-01578: ORACLE data block corrupted on temp.dbf file when using SNAPSHOT pluggable db

in Database Backup and Recovery (MOSC) 3 commentsAnswered ✓

We are using:

- Oracle Database 12c Enterprise Edition Release 12.2.0.1.0, RDBMS_12.2.0.1.0DBAPR2019RU_LINUX.X64_190227

 on Red Hat Enterprise Linux Server release 7.7


- With several Source Project Pdbs, we duplicate them by using SNAPSHOT COPY for our users. (the param clonedb=TRUE )

 CREATE PLUGGABLE DATABASE TESTPDB_nn FROM SOURCEPDB PARALLEL 1 SNAPSHOT COPY NOLOGGING CREATE_FILE_DEST='/oracle/oradata/Users'


- And randomly we have 'ORA-01578: ORACLE data block corrupted' on temp.dbf file (without any reason, with different SQL, no dedicated temporary objects in TEMP). 

 We have few Global Temporary Tables on each pdb. We checked the sanity of each Source PDB with no error.

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