Re: Oracle Database - Shrink Tablespace

Hello João

You cannot shrink a tablespace by itself, , but you can shrink it's datafiles

In your case I think you could just drop a tablespace... as one of them should only contain few segments. This sometimes happens during upgrades.

Check segment left in the almost empty tablespace

Select count(1), TABLESPACE_NAME from dba_segments where owner like 'SAP%' and TABLESPACE_NAME like 'PSAPSR3702%' group by TABLESPACE_NAME;

COUNT(1) TABLESPACE_NAME

---------- ---------------

19 PSAPSR3702

991 PSAPSR3702X

You could move these segments to the appropriate tablespace using the result from these commands

SELECT 'ALTER TABLE "' || OWNER ||'"."' || SEGMENT_NAME ||'" MOVE TABLESPACE '||' PSAPSR3702X;'

FROM dba_segments

WHERE TABLESPACE_NAME = 'PSAPSR3702'

AND SEGMENT_TYPE = 'TABLE'

SELECT 'ALTER INDEX "' || OWNER ||'"."' || SEGMENT_NAME || '" REBUILD TABLESPACE PSAPSR3702X ;'

FROM dba_segments

WHERE TABLESPACE_NAME = 'PSAPSR3702'

AND SEGMENT_TYPE = 'INDEX'

And then you can drop the tablespace

drop tablespace PSAPSR3702 including contents and datafiles;

Best regards