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1. www.oracletutorial.com › oracle-comparison-functions › oracle-nvlOracle NVL() Function By Practical Examples - Oracle Tutorial

   www.oracletutorial.com › oracle-comparison-functions › oracle-nvl

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   The Oracle NVL() function allows you to replace null with a more meaningful alternative in the results of a query. The following shows the syntax of the NVL() function: NVL(e1, e2) Code language: SQL (Structured Query Language) ( sql )

2. docs.oracle.com › en › databaseNVL - Oracle Help Center

   docs.oracle.com › en › database

   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.

3. www.techonthenet.com › oracle › functionsOracle / PLSQL: NVL Function - TechOnTheNet

   www.techonthenet.com › oracle › functions

   The Oracle/PLSQL NVL function lets you substitute a value when a null value is encountered. Syntax. The syntax for the NVL function in Oracle/PLSQL is: NVL( string1, replace_with ) Parameters or Arguments. string1. The string to test for a null value. replace_with. The value returned if string1 is null. Returns.

4. ittalk.pl › funkcje-oracle-sql › funkcja-oracle-nvl-jak-obliczycFunkcja Oracle NVL. Jak obliczyć? - ITTalk.pl

   ittalk.pl › funkcje-oracle-sql › funkcja-oracle-nvl-jak-obliczyc

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   10 lut 2023 · Funkcja NVL (ang. Null Value) w języku SQL Oracle służy do zamiany wartości NULL na inne określone przez użytkownika. Składnia funkcji NVL wygląda następująco: NVL(wartość_porównywana, wartość_zamieniana) Przykład: SELECT NVL(NULL, 'brak danych') FROM dual; Wynik:

5. www.oracletutorial.com › oracle-comparison-functions › oracle-nvl2Oracle NVL2 Function By Practical Examples - Oracle Tutorial

   www.oracletutorial.com › oracle-comparison-functions › oracle-nvl2

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   Oracle NVL2 () function overview. The Oracle NVL2 () function is an extension of the NVL () function with different options based on whether a NULL value exists. The Oracle NVL2 () function accepts three arguments. If the first argument is not null, then it returns the second argument.

6. asktom.oracle.com › pls › apexNVL function - Ask TOM - Oracle Ask TOM

   asktom.oracle.com › pls › apex

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   13 wrz 2004 · We are using NVL function in one of our cursor queries. select sum (nvl (table.column1,0) - nvl (table.column2,0)) We were expecting this cursor to return Zero when no rows were found, but it actually returns a null. select nvl (sum (table.column1),0) - nvl (sum (table.column2),0)

7. database.guide › nvl-function-in-oracleNVL() Function in Oracle - Database.Guide

   database.guide › nvl-function-in-oracle

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   18 wrz 2021 · In Oracle Database, the NVL() function allows us to replace null values with another value. Syntax. The syntax goes like this: NVL(expr1, expr2) If expr1 is null, then expr2 is returned. Otherwise expr1 is returned. Example. Here’s an example to demonstrate: SELECT NVL(null, 'Fish') FROM DUAL; Result: Fish