Error 1241 Operand should contain 2 column(s)
Question
My query : http://pastebin.com/8c2rLrRk
In this 3rd case 2nd when condition is causing the issue, if i comment that then query is running well. So pls let me know where the loophole in this syntax.
1 answers
solution1
0 ACCPTED
错误行：IFNULL（COUNT（blockedseats.seatNo），0）我们不能合并计数和ifnull函数。
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