How do I write a conditional statement (IF) with MySQL?
How do I write a conditional statement (IF) with MySQL? Ask Question Asked 7 years, 5 months ago Modified 3 years, 11 months ago
mysql - How can I UPDATE multiple ROWs in a Single Query with …
Feb 18, 2018 · It is also possible to update multiple tables in one statement in MySQL. Whether the latter is a good idea is debatable, though. The target tables would be joined together for …
mysql - Creating Multiple Tables with WITH statements - Database ...
Nov 8, 2018 · I have created Table1 and Table2 both with WITH statements. I have been trying to create Table3 with WITH statement as well that would be the UNION ALL of Table1 and …
mysql - Get a fixed value on a select - Database Administrators …
26 I need to do a SELECT query where I get the value of the field "money". The field doesn't actually exist in the database. I just need the query to return this field with a fixed value; in this …
mysql - Query execution was interrupted, max_statement_time …
May 7, 2011 · Query execution was interrupted, max_statement_time exceeded Ask Question Asked 9 years, 9 months ago Modified 3 years, 2 months ago
mysql - Query works manually, not from stored procedure - Safe …
Oct 15, 2020 · I have a relatively simple update query that works fine when I manually execute it from a Mysql Workbench query window, but will not work when I call it as a stored procedure. …
MySQL - INSERT INTO ... SELECT ... UNION - Database …
mysql> SELECT 1 UNION ALL SELECT 1 UNION SELECT 1; +---+ | 1 | +---+ | 1 | +---+ 1 row in set (0.00 sec) Additionally, NOT IN (SELECT) will execute the inner query for every row in the …
mysql - Multiple Update with Multiple Conditions - Database ...
Apr 16, 2016 · In MySQL, you can use tuple comparison: WHERE (TestId, TestSubId) IN ((10,25), (11,22)) That looks nice and succinct, although, as ypercubeᵀᴹ mentioned in a comment, it …
What's the most efficient way to batch UPDATE queries in MySQL?
Apr 16, 2017 · Since you're using InnoDB tables, the most obvious optimization would be to group multiple UPDATE s into a transaction. With InnoDB, being a transactional engine, you pay not …
mysql - How to do While Loops? - Database Administrators Stack …
Apr 9, 2014 · This script doesn't give me a syntax error, unlike the examples from the MYSQL docs, so thanks. But the result seems to be equivalent to "select 0", and I'd expected "select 9"?