Posts by Fonseca • 11 points
1 post
-
0
votes2
answers157
viewsQ: Mysql message: #1241 - Operand should contain 1 column(s) - Copy data from different tables and databases
I need to copy database A data from table A (14columns) to Database B table A (15columns) I need to check accountid if there is no database B table A must copy the data, if there is no. I tried the…