Best way to remove lines of 38million?
Hello
ENV: Oracle 11 g 2 (11.2.0.3.6) on the file system, Oracle Linux 6.2 64bits
I was invited to remove redundant/old data from a table that has not been cleaned for long loooong.
Select count (0) PI PROC_INST
where there is not (select id
of ids_to_keep rb
where rb.id = pi. RAW_BUFFER_ID
)
and pi.instruction_type not in ('URL1', 'URL2')
Returns the count = 38442973
Delete it:
remove IP PROC_INST
where there is not (select id
of ids_to_keep rb
where rb.id = pi. RAW_BUFFER_ID
)
and pi.instruction_type not in ('URL1', 'URL2')
I tried to delete like this, but it failed with "ORA-30036: unable to extend segment by 8 in the undo tablespace ' UNDOTBS.
What is the best way to remove pieces and validation for each segment of deleted data?
Best regards
How many lines will remain in the table? Maybe create a new table using ETG and exchange the original after the operation table would be more efficient (if the table is not in permanent access).
Tags: Database
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