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Let's look at some Oracle NVL2 function examples and explore how to use the NVL2 function in Oracle/PLSQL. For example: select NVL2(supplier_city, 'Completed', 'n/a') from suppliers;
29 kwi 2016 · Both the NVL(exp1, exp2) and NVL2(exp1, exp2, exp3) functions check the value exp1 to see if it is null. With the NVL(exp1, exp2) function, if exp1 is not null, then the value of exp1 is returned; otherwise, the value of exp2 is returned, but case to the same data type as that of exp1.
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 .
15 mar 2022 · NVL2() Example 1. Expression_1 evaluates as NULL in the following code, so the NVL2() returns Employee Does not exist (expression_3). SQL> select NVL2(NULL,'S02263','Employee Does not exist') "Employee Name and Code" from dual; Employee Name and Code ———————— Employee Does not exist
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.
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 .
