https://stackoverflow.com › questions › 43934155
postgresql - sqlite IFNULL () in postgres - Stack OverflowThe short answer is that COALESCE function is what you can use in postgres. COALESCE is a standard SQL function (implemented in ~every RDBMS), while IFNULL is not standard, even if widely used. COALESCE can handle more than two operands. It returns the first non-NULL value.
https://www.postgresqltutorial.com › postgresql-tutorial › postgresql-nullif
PostgreSQL NULLIF functionShow you how to apply the PostgreSQL NULLIF function to substitute the null values for displaying data and preventing division by zero error.
https://stackoverflow.com › questions › 2214525
What is the PostgreSQL equivalent for ISNULL () - Stack OverflowSELECT COALESCE(Field,'Empty') from Table; It functions much like ISNULL, although provides more functionality. Coalesce will return the first non null value in the list. Thus: SELECT COALESCE(null, null, 5); returns 5, while. SELECT COALESCE(null, 2, 5); returns 2. Coalesce will take a large number of arguments.
https://www.postgresql.org › docs › current › functions-conditional.html
PostgreSQL: Documentation: 16: 9.18. Conditional ExpressionsThe SQL CASE expression is a generic conditional expression, similar to if/else statements in other programming languages: [WHEN ...] [ELSE result] CASE clauses can be used wherever an expression is valid. Each condition is an expression that returns a boolean result.
https://stackoverflow.com › questions › 49042477
mysql - IFNULL () Equivalent in PostgreSQL - Stack OverflowNULLIF () is very different from IFNULL (). I think that what you want is COALESCE (), which will return the first non-NULL argument (it can have more than 2 arguments):
https://docs.postgresql.fr › 9.6 › functions-conditional.html
9.17. Expressions conditionnelles - PostgreSQLCette fonction SQL standard fournit des fonctionnalités similaires à NVL et IFNULL, qui sont utilisées dans d'autres systèmes de bases de données.
https://www.castordoc.com › how-to › how-to-use-ifnull-in-postgresql
How to use ifnull in PostgreSQL? - CastorDocPostgreSQL provides several functions to handle null values, and one such function is ifnull. In this article, we will explore the concept of ifnull in PostgreSQL, its syntax, practical applications, troubleshooting common errors, and best practices for using ifnull efficiently.
https://www.postgresqltutorial.com › postgresql-tutorial › postgresql-isnull
Looking for PostgreSQL ISNULL? Use COALESCE or CASEPostgreSQL does not support the ISNULL function. But you can use the COALESCE () function or CASE expression to achieve the same functionality.
https://www.postgresqltutorial.com › postgresql-tutorial › postgresql-coalesce
PostgreSQL COALESCE () Function - PostgreSQL TutorialPostgreSQL COALESCE function syntax. The COALESCE() function accepts a list of arguments and returns the first non-null argument. Here’s the basic syntax of the COALESCE() function: COALESCE (argument_1, argument_2, …);
https://database.guide › sql-ifnull-explained
SQL IFNULL () Explained - Database.GuidePostgreSQL doesn’t have an IFNULL() function or an ISNULL() function. But it does support the SQL standard COALESCE() (as do all of the RDBMSs mentioned above).
