The CONCAT() function first convert all the passed arguments into string data type and then concatenate all those string together and return the final string. Syntax CONCAT(argument1, argument2, argument3.) Return Value If any passed argument is NULL then it will return Null. The CONCAT() function first convert all the passed argument into string type and then concatenate together. ![]() The CONCAT() function must require at least one argument otherwise it will raise an error. The CONCAT() function in MySQL is a built-in function that comes with MySQL by default, It can take various columns and return concatenated version of all those column values. ![]()
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