I have problems with concurrent connections. How do i ensure that one query in ran just after another, without queries from another connections coming in between. I’ll probably need some kind of locking, but what kind? ..or? transactions?
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I have problems with concurrent connections. How do i ensure that one query in ran just after another, without queries from another connections coming in between. I’ll probably need some kind of locking, but what kind? ..or? transactions?
Run the 2 queries in SERIALIZABLE isolation level – it guarantees that the result from the 2 queries is exactly the same as if they were the only 2 queries performed, by locking every record they access, but without locking the rest of the table/tables.