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https://databaserookies.wordpress.com/2016/02/26/nvl-function-internal-behaviour-in-oracle-for-scalar-calls

NVL Function Internal Behavior in Oracle for Scalar Calls.

During a performance analysis, identified a NVL Scalar Function calls was eating up lot of SQL time.Scalar function was like below, NVL ( A_Table_Column, (SELECT COUNT(*) FROM TABLE_B WHERE <>)) If we check Scalar Columns, we are ideally performing below task using NVL oracle Functions. IF A_Table_Column is NULL Then Check COUNT in TABLE_B Else…



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NVL Function Internal Behavior in Oracle for Scalar Calls.

https://databaserookies.wordpress.com/2016/02/26/nvl-function-internal-behaviour-in-oracle-for-scalar-calls

During a performance analysis, identified a NVL Scalar Function calls was eating up lot of SQL time.Scalar function was like below, NVL ( A_Table_Column, (SELECT COUNT(*) FROM TABLE_B WHERE <>)) If we check Scalar Columns, we are ideally performing below task using NVL oracle Functions. IF A_Table_Column is NULL Then Check COUNT in TABLE_B Else…



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https://databaserookies.wordpress.com/2016/02/26/nvl-function-internal-behaviour-in-oracle-for-scalar-calls

NVL Function Internal Behavior in Oracle for Scalar Calls.

During a performance analysis, identified a NVL Scalar Function calls was eating up lot of SQL time.Scalar function was like below, NVL ( A_Table_Column, (SELECT COUNT(*) FROM TABLE_B WHERE <>)) If we check Scalar Columns, we are ideally performing below task using NVL oracle Functions. IF A_Table_Column is NULL Then Check COUNT in TABLE_B Else…

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