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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 · To update multiple columns in MySQL we can use the SET clause in the UPDATE statement. SET clause allows users to update values of multiple columns at a time. In this article, we will learn how to update multiple columns in MySQL using UPDATE and SET commands. We will cover the syntax and examples, providing explanations to help you understand how
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":
29 gru 2017 · I am trying to understand how to UPDATE multiple rows with different values and I just don't get it. The solution is everywhere but to me it looks difficult to understand. For instance, two updates into 1 query: UPDATE mytable SET fruit='orange', drink='water', food='pizza' WHERE id=1;
What is the easiest way to update many rows in a table? I have a csv file that looks like this: |primary_key |value|. | 1 | xyz|. | 2 | abc|. | 3 | def|. ... Rows with these primary keys already exist in the target table. I would like to update the target table with these values.
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;
