Dynamic procedure to change Column name - mysql

Question

I need to create a dynamic procedure so that whenever I need to rename a column of a table I pass the desired parameters and it executes without errors. So the verification of the IF.
The error generated by this code is as follows:
You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near 'IF EXISTS (SELECT * FROM information_schema.columns WHERE
table_name = 'People'' at line 1
DROP PROCEDURE IF EXISTS `change_column_name`;
DELIMITER ;;
CREATE PROCEDURE `change_column_name`(IN tableName VARCHAR(100), IN columnName VARCHAR(100), IN newColumnName VARCHAR(100), IN columnType VARCHAR(20), IN defaultValue VARCHAR(100))
BEGIN
SET #query = CONCAT('IF EXISTS (SELECT * FROM information_schema.columns WHERE table_name = \'', tableName, '\' AND column_name = \'', columnName, '\') THEN
ALTER TABLE \'', tableName, '\' CHANGE COLUMN \'', columnName, '\' \'', newColumnName, '\' ', columnType, ' DEFAULT ', defaultValue, ';
END IF;');
PREPARE stmt1 FROM #query;
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;
END ;;
DELIMITER ;
CALL `change_column_name`('People', 'Nme', 'Name', 'VARCHAR(50)', 'NULL');

Answer 1

Solved, the way the steps were made were wrong.
DROP PROCEDURE IF EXISTS `change_column_name`;
DELIMITER ;;
CREATE PROCEDURE `change_column_name`(IN tableName VARCHAR(100), IN columnName VARCHAR(100), IN newColumnName VARCHAR(100), IN columnType VARCHAR(20), IN defaultValue VARCHAR(100))
BEGIN
IF EXISTS (SELECT * FROM information_schema.COLUMNS WHERE table_name = tableName AND column_name = columnName) THEN
SET #query = CONCAT('ALTER TABLE `', tableName, '` CHANGE COLUMN `', columnName, '` `', newColumnName, '` ', columnType, ' DEFAULT ', defaultValue, ';');
PREPARE stmt1 FROM #query;
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;
END IF;
END ;;
DELIMITER ;
CALL `change_column_name`('People', 'Nme', 'Name', 'VARCHAR(50)', 'NULL');