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If you're using PHP, you can use mysqli to do multi statements (I think php has shipped with mysqli for a while now) $con = new mysqli('localhost','user1','password','my_database'); $query = "Update MyTable SET col1='some value' WHERE id=1 LIMIT 1;"; $query .= "UPDATE MyTable SET col1='other value' WHERE id=2 LIMIT 1;"; //etc $con->multi_query ...
11 cze 2024 · Therefore updating multiple rows in a single query in MySQL can be efficiently done using the UPDATE statement having a WHERE clause in it. This WHERE clause is used to specify the criteria for records that you want to update.
18 lut 2018 · It is possible to update rows based on some condition. It is also possible to update multiple tables in one statement in MySQL. Whether the latter is a good idea is debatable, though.
UPDATE Multiple Records. It is the WHERE clause that determines how many records will be updated. The following SQL statement will update the PostalCode to 00000 for all records where country is "Mexico":
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 .
In this article, we would like to show you how to update multiple rows at once in MySQL. Quick solution: UPDATE `table_name` SET `column1` = value1, `column2` = value2, `columnN` = valueN WHERE condition;
12 lis 2018 · There are a couple of ways to do it. 1. You can either write multiple UPDATE queries like this and run them all at once: UPDATE students SET score1 = 5, score2 = 8 WHERE id = 1; UPDATE students SET score1 = 10, score2 = 8 WHERE id = 2; UPDATE students SET score1 = 8, score2 = 3 WHERE id = 3;
