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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.

  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. dba.stackexchange.com › questions › 135505mysql - Multiple Update with Multiple Conditions - Database ...

    16 kwi 2016 · UPDATE Tests SET TestScore = CASE WHEN TestId = 10 THEN 1000 WHEN TestId = 11 THEN 1100 END, TestScore2 = CASE WHEN TestId = 10 THEN 2000 WHEN TestId = 11 THEN 2100 END WHERE TestId IN (10, 11) But what happens when there two conditions required, namely the joint combo of (TestId, TestSubId)?

  4. dev.mysql.com › doc › refmanMySQL :: MySQL 8.0 Reference Manual :: 13.2.13 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.w3schools.com › mysql › mysql_updateMySQL UPDATE Statement - W3Schools

    Notice the WHERE clause in the UPDATE statement. The WHERE clause specifies which record(s) that should be updated. If you omit the WHERE clause, all records in the table will be updated!

  6. dev.mysql.com › doc › refmanMySQL :: MySQL 8.4 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.

  7. www.tutorialspoint.com › mysql-update-using-if-conditionMySQL UPDATE using IF condition - Online Tutorials Library

    30 lip 2019 · The syntax is as follows to perform UPDATE using IF condition in MySQL − update yourTableName set yourColumnName =if(yourColumnName =yourOldValue,yourNewValue,yourColumnName); To understand the above syntax, let us create a table.

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