[GospodinX]

Quote:

Originally Posted by Calisthenics 2) https://dev.mysql.com/doc/refman/8.0...duplicate.html Does inventory table have a primary key? If not, set these two (userid, itemid) as PRIMARY KEY. Each player and item is a unique pair and use the syntax I linked above. It either inserts a new row or updates the row if exists.

It's great.Is there anything for example that amount can't be 0?(if it's 0 delete row).I just need it now.