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Oracle Integer(38) converted to Decimal(22,0)
Posted by: Adil Alvi
Date: April 20, 2009 11:21AM

Hi,

I migrated an oracle database to MySQL using the MySQL Migration Toolkit. All columns in Oracle which are of Integer (38) data type are converted to Decimal(22,0) in MySQL. Will the decimal data type allocate storage depending on the value of the field or will it always allocate a fixed storage size i.e (22,0)?

If I manually convert the decimal data type to INTEGER, can someone also give the steps, where I can disable the constraints, alter the data type, and then enable the constraints again.
There are at least 20 to 30 instances, and they all have referential constraints. If there is no storage or performance issue by keeping the decimal data type, then please advise so.

Thanks,
Adil

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