In this post, you’ll learn more about the MariaDB Error 1241 ER_OPERAND_COLUMNS with the details of the error message and why you receive this error
Maria DB Error Description
MariaDB Error 1241 – ER_OPERAND_COLUMNS with the sqlState 21000
Error Description for the MariaDB Error ER_OPERAND_COLUMNS
Operand should contain %d column(s)