Re: SQL Error (1241): Operand should contain 1 column(s)
Posted by: Abhishek Gupta
Date: February 15, 2021 12:31AM

Hi Peter,

Thanks for your reply.

I did what you mentioned but this time in a VM with Windows 7. The statement get executed without error. The MySQL version is 5.7.32. But I compare both version's system variables and do not find any promising difference which I can believe is the reason for such a behavior.

Are there any open source/freeware tools that can help me diagnose this problem, like what part of SQL query is leading to that error.

With that said, I will appreciate if you can mention or point me to a link, that list general and useful tools/utilities a MySQL DBA and Developer should know about.

Thanks|Regards
Abhishek G

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Re: SQL Error (1241): Operand should contain 1 column(s)
February 15, 2021 12:31AM


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