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  1. stackoverflow.com › questions › 17265522sql - Conditional UPDATE in MySQL - Stack Overflow

    23 cze 2013 · I am trying to UPDATE values from a table, but I need to add some conditions. I found the function CASE, but I am not if it is the best method. Here is an example. My table is 'relation': userid1 |

  2. dirask.com › posts › MySQL-UPDATE-query-with-IF-condition-conditional-update-pOv4JDMySQL - UPDATE query with IF condition (conditional update)

    In this article, we would like to show you UPDATE query with IF condition in MySQL. Quick solution: UPDATE `table_name` SET `column_name` = IF(condition , if_true, if_false); Practical example. To show UPDATE query with IF condition, we will use the following users table:

  3. www.w3schools.com › mysql › mysql_updateMySQL UPDATE Statement - W3Schools

    The MySQL UPDATE Statement. The UPDATE statement is used to modify the existing records in a table. UPDATE Syntax. UPDATE table_name. SET column1 = value1, column2 = value2, ... WHERE condition; Note: Be careful when updating records in a table! Notice the . WHERE clause in the UPDATE statement.

  4. dev.mysql.com › doc › refmanMySQL :: MySQL 9.0 Reference Manual :: 15.2.17 UPDATE Statement

    The WHERE clause, if given, specifies the conditions that identify which rows to update. With no WHERE clause, all rows are updated. If the ORDER BY clause is specified, the rows are updated in the order that is specified. The LIMIT clause places a limit on the number of rows that can be updated.

  5. www.mysqltutorial.org › mysql-stored-procedure › mysql-if-statementMySQL IF Statement - MySQL Tutorial

    Summary. Use IF...THEN statement to conditionally execute a block of statements based on the evaluation of a specified condition. Use IF...THEN...ELSE statement to execute a block of statements if a specified condition is true and an alternative block of statements if the condition is false.

  6. www.mysqltutor.com › mysql-if-functionMySQL IF function - MySQL Tutorial

    The MySQL IF function is a control flow function that allows you to perform conditional logic within a query. It is commonly used in SELECT statements to return different values based on a specified condition. Syntax. The syntax for the MySQL IF function is as follows: IF(condition, value_if_true, value_if_false)

  7. www.mysqltutorial.org › mysql-basics › mysql-updateMySQL UPDATE - MySQL Tutorial

    Introduction to MySQL UPDATE statement. The UPDATE statement updates data in a table. It allows you to change the values in one or more columns of a single row or multiple rows. The following illustrates the basic syntax of the UPDATE statement: UPDATE [LOW_PRIORITY] [IGNORE] table_name SET column_name1 = expr1, column_name2 = expr2, ... [WHERE ...

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