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  1. stackoverflow.com › questions › 1262786MySQL - UPDATE query based on SELECT Query - Stack Overflow

    You can actually do this one of two ways: MySQL update join syntax: UPDATE tableA a. INNER JOIN tableB b ON a.name_a = b.name_b.

  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.squash.io › how-to-update-mysql-query-based-on-select-queryHow to Update Records in MySQL with a Select Query - Squash

    1 lis 2023 · To update a MySQL query based on a select query, you can use the UPDATE statement with a subquery. This allows you to update rows in one table based on the values returned from a select query on another table.

  4. 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.

  5. dba.stackexchange.com › questions › 215221mysql update based on select result, How combine?

    UPDATE TableB SET TableB.value = ( SELECT TableA.value FROM TableA WHERE TableA.name = TableB.name ) where TableB.value < X;

  6. www.geeksforgeeks.org › how-to-update-table-rows-in-mysql-using-subqueryHow to Update Table Rows Using Subquery in MySQL - GeeksforGeeks

    26 cze 2024 · Updating table rows using subqueries in MySQL enables precise modifications based on specific conditions or values from other tables. This technique leverages subqueries within the SET or WHERE clauses of the UPDATE statement, allowing dynamic and context-specific updates.

  7. stackoverflow.com › questions › 10539124Mysql update using values from select - Stack Overflow

    10 maj 2012 · The working syntax is: UPDATE exp_channel_data AS t1, (. SELECT. entry_id as ei2, child_entry_id, parent_entry_id, field_id_46 as f46,field_id_47 as f47. FROM. exp_channel_data JOIN exp_playa_relationships ON entry_id=child_entry_id AND parent_field_id = 34) AS t2. SET t1.field_id_60 = f46, t1.field_id_61 = f47.

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