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The following illustrates the syntax of the Oracle NVL2() function: NVL2(e1,e2,e3) Code language: SQL (Structured Query Language) ( sql ) In this syntax, the first argument e1 can be a value of any data type.
Syntax. The syntax for the NVL2 function in Oracle/PLSQL is: NVL2( string1, value_if_not_null, value_if_null ) Parameters or Arguments string1 The string to test for a null value. value_if_not_null The value returned if string1 is not null. value_if_null The value returned if string1 is null.
NVL2 lets you determine the value returned by a query based on whether a specified expression is null or not null. If expr1 is not null, then NVL2 returns expr2 . If expr1 is null, then NVL2 returns expr3 .
NVL2 lets you determine the value returned by a query based on whether a specified expression is null or not null. If expr1 is not null, then NVL2 returns expr2 . If expr1 is null, then NVL2 returns expr3 .
Syntax. Description of the illustration nvl.eps. Purpose. NVL lets you replace null (returned as a blank) with a string in the results of a query. If expr1 is null, then NVL returns expr2. If expr1 is not null, then NVL returns expr1. The arguments expr1 and expr2 can have any data type.
18 wrz 2021 · In Oracle Database, the NVL2 () function allows us to replace null values with another value. It’s similar to the NVL () function, except that it accepts three arguments instead of two. This allows us to specify a different value to return in the event the first argument is not null.
PL/SQL NVL2. The NVL2 function returns the value returned by a query based, if the expression is null or not null. If expression1 is not null, then NVL2 returns expression2. If expression1 is null, then NVL2 returns expression3.
