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MSSQL to Oracle Migration Performance issues

Recently we migrated our product from MS-SQL 2000 to Oracle 9i. We see lot of performance degradation due to migration. Some times complex queries are hitting 10 fold slower than SQL Server.

Reasons could be,
1.The Oracle Server with respect to configuration may have issues.
2.The SQL server optimized queries are not suitable for Oracle(The normal cases, such as datatypes, syntax etc are already taken care).

Any help on this is appreciable.. Thanks in advance.
Oct 29 '07 #1
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