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Don Burleson Blog 







ORA-01658: unable to create INITIAL extent tips

Oracle Tips by Burleson Consulting

June 11, 2015


Oracle docs note this about ORA-01658:

ORA-01658: unable to create INITIAL extent for segment in tablespace string

Cause: Failed to find sufficient contiguous space to allocate INITIAL extent for segment being created.

Action: Use ALTER TABLESPACE ADD DATAFILE to add additional space to the tablespace or retry with a smaller value for INITIAL.

The obvious cure for the ORA-01657 error is to:

1 - Make the INITIAL extent size smaller

2 - Empty the recycle bin

3 - Add a datafile the tablespace to provide a larger contiguous chunk size.

4 - Reorganize the tables in the tablespace

Try this query for your tablespace maximum chunk size tsfree.sql.

This case of ORA-01658 concerns needing to make the tablespace bigger, which can be done by either extending your file, or adding another one.  This is a good solution for ORA-01658 because repository tables need to be meticulously created keeping the extents of the table in mind. 

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