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lionofdezert
Aged Yak Warrior
885 Posts |
 Posted - 2009-01-30 : 07:05:46
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| I applied encryption (Encryption By Key)to secur my data, in almost all of my table, but on selected columns in each table. BUTmy simple select query even become 700% slow.defenitly when i select records i need to decrypt all the encrypted data.How can i improve my query performance.* All the indexes are carefully applied and statisics are updated |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2009-01-30 : 07:24:25
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You can't use indexes when searching on encrypted columns.
E 12°55'05.63"N 56°04'39.26" |
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Lumbago
Norsk Yak Master
3271 Posts |
Posted - 2009-01-30 : 07:34:24
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| Encrypting data in a database is not such a good idea for exactly this reason. The only stuff I encrypt in the databases I work with are credit card numbers and passwords.- Lumbago |
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Query speed problem after encryption