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Estimating table and tablespace size

If I know the table structures, how do I estimate table and tablespace size?


This varies greatly depending on the database engine. You'll get different answers for DB2/390 than for DB2/UDB, both of which will be different than MS-SQL, all of which will be different from any of the versions of Oracle. provides the closest thing I've seen to "one stop shopping" for database engines that support the ODBC "tables" view.

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