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Use the PLS_INTEGER Datatype
When you require to declare an integer variable, use the datatype PLS_INTEGER that is the most efficient numeric type. That is as the PLS_INTEGER values need less storage than INTEGER or NUMBER values that are represented internally as 22-byte Oracle numbers. The PLS_INTEGER operations also use machine arithmetic, Therefore they are faster than BINARY_INTEGER, INTEGER, or NUMBER operations, that uses the library arithmetic. Moreover INTEGER, NATURAL, NATURALN, POSITIVE, POSITIVEN, and SIGNTYPE are constrained subtypes. Therefore, their variables need precision checking at the run time that can affect the performance.
Using the BULK COLLECT Clause The keywords BULK COLLECT specify the SQL engine to bulk-bind output collections before returning them to the PL/SQL engine. You can use these ke
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%ISOPEN The Oracle closes the SQL cursor automatically after executing its related SQL statement. As a result, the %ISOPEN forever yields FALSE.
At times, customers make mistakes in submitting their orders and call to cancel the order. Brewbean's wants to create a trigger that automatically updates the stock level of all pr
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Data Types in SQL - Integer INTEGER or synonymously INT, for integers within a certain range. SQL additionally has types SMALLINT and BIGINT for certain ranges of integers. T
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SQL Operators The PL/SQL uses all the SQL set, comparison, and row operators in the SQL statements. This part briefly describes some of these operators. 1. Comparison Opera
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