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Learn how to use the IFNULL () function in MySQL to return a specified value if the expression is NULL, otherwise return the expression. See syntax, parameter values, examples and technical details.
MySQL IFNULL function is one of the MySQL control flow functions that accepts two arguments and returns the first argument if it is not NULL. Otherwise, the IFNULL function returns the second argument.
25 kwi 2021 · Learn how to use ISNULL () and IFNULL () functions to check and handle NULL values in MySQL. See syntax, examples, and applications with tables and queries.
If no comparison or condition is true, the result after ELSE is returned, or NULL if there is no ELSE part. The syntax of the CASE operator described here differs slightly from that of the SQL CASE statement described in Section 15.6.5.1, “CASE Statement”, for use inside stored programs.
14 maj 2022 · In particular, MySQL, MariaDB, and SQLite each have an IFNULL() function that replaces any null values with another value. Other RDBMSs, such as SQL Server, Oracle, and PostgreSQL provide similar functionality via functions of a different name.
10 wrz 2024 · Learn how to use IFNULL() function in MySQL to handle NULL values in queries. See examples of replacing, calculating, displaying, and comparing values with IFNULL().
29 cze 2024 · Learn how to use IFNULL () function in MySQL to handle NULL values in your data. See syntax, arguments, return type, examples, and comparison with other functions.
