MySQL Procedure Syntax Error "Missing END" - mysql

Question

I have to following procedure trying to dynamically create a view.
CREATE DEFINER=`root`#`%` PROCEDURE `uspCreateViewFromTable`(IN ViewName varchar(255), IN TableName varchar(255))
BEGIN
#View Droppen falls sie schon erstellt wurde
SET #s = CONCAT('DROP VIEW IF EXISTS ',ViewName);
PREPARE stmt FROM #s;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
# Verwendete Spalten filtern und Statement bauen
#SET #columns = CAST('SELECT ' AS VARCHAR(10));
DECLARE column varchar(500);
DECLARE column_cursor FOR SELECT column_name FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = Tablename;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN column_cursor
read_loop: LOOP
FETCH column_cursor INTO column
# do something
SELECT column;
IF done THEN
LEAVE read_loop;
END IF;
END LOOP;
CLOSE column_cursor;
END
I get the Error "Missing END" and I have no idea why.
The syntax checker underlines the semikolon at the end of Line
DEALLOCATE PREPARE stmt;
When I move the dealloc to the end the syntac checker highlightes the semikolon at the line before.
EXECUTE stmt;
If I remove everthing after the dealloc it works.

Answer 1

Some problems:
DECLARE is permitted only inside a BEGIN ... END compound statement and must be at its start, before any other statements. See 13.6.3 DECLARE Syntax.
ERROR 1193 (HY000): Unknown system variable 'done'.
Check the syntax of cursors. See 13.6.6.2 Cursor DECLARE Syntax.
column is keyword and reserved word. See 9.3 Keywords and Reserved Words.
Missing some ;.
DELIMITER //
CREATE PROCEDURE `uspCreateViewFromTable`(
IN ViewName varchar(255),
IN TableName varchar(255)
)
BEGIN
/*
#View Droppen falls sie schon erstellt wurde
SET #s = CONCAT('DROP VIEW IF EXISTS ',ViewName);
PREPARE stmt FROM #s;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
*/
# Verwendete Spalten filtern und Statement bauen
#SET #columns = CAST('SELECT ' AS VARCHAR(10));
-- DECLARE column varchar(500);
DECLARE `column` varchar(500);
DECLARE done BOOL DEFAULT FALSE;
/*
DECLARE column_cursor FOR
SELECT column_name
FROM INFORMATION_SCHEMA.COLUMNS
WHERE table_name = Tablename;
*/
DECLARE column_cursor CURSOR FOR
SELECT column_name
FROM INFORMATION_SCHEMA.COLUMNS
WHERE table_name = Tablename;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
#View Droppen falls sie schon erstellt wurde
SET #s = CONCAT('DROP VIEW IF EXISTS ',ViewName);
PREPARE stmt FROM #s;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
-- OPEN column_cursor
OPEN column_cursor;
read_loop: LOOP
-- FETCH column_cursor INTO column
FETCH column_cursor INTO `column`;
# do something
-- SELECT column;
SELECT `column`;
IF done THEN
LEAVE read_loop;
END IF;
END LOOP;
CLOSE column_cursor;
END//
DELIMITER ;