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How can I update multiple tables in a single query in SQL?
How to use multiple tables in SQL UPDATE statement with JOIN
- CREATE TABLE table1 (column1 INT, column2 INT, column3 VARCHAR (100))
- INSERT INTO table1 (col1, col2, col3)
- SELECT 1, 11, ‘FIRST’
- UNION ALL.
- SELECT 11,12, ‘SECOND’
- UNION ALL.
- SELECT 21, 13, ‘THIRD’
- UNION ALL.
Can we update multiple tables using update in SQL?
It’s not possible to update multiple tables in one statement, however, you can use the transaction to make sure that two UPDATE statements must be treated atomically. You can also batch them to avoid a round trip like this.
How can I update multiple tables in MySQL with s?
How can I update multiple tables in MySQL with a s… Stack Overflow About Products For Teams Stack OverflowPublic questions & answers Stack Overflow for TeamsWhere developers & technologists share private knowledge with coworkers JobsProgramming & related technical career opportunities
When do you say multiple queries do you mean multiple SQL statements?
When you say multiple queries do you mean multiple SQL statements as in: UPDATE table1 SET a=b WHERE c; UPDATE table2 SET a=b WHERE d; UPDATE table3 SET a=b WHERE e; Or multiple query function calls as in: mySqlQuery (UPDATE table1 SET a=b WHERE c;) mySqlQuery (UPDATE table2 SET a=b WHERE d;) mySqlQuery (UPDATE table3 SET a=b WHERE e;)
Which is the best way to combine multiple updates into one query?
MySQL allows a more readable way to combine multiple updates into a single query. This seems to better fit the scenario you describe, is much easier to read, and avoids those difficult-to-untangle multiple conditions. This assumes that the user_rol, cod_office combination is a primary key.
How to update multiple rows with different values?
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. I don’t understand what the CASE WHEN ..