Stored procedure MySQL 5.5.16 - mysql

Question

So I have in my database a table called "weeks" where I store every weeks of the years like so:
table weeks(id, year, num_week, date_min, date_max)
So for this week, the line look like this :
Note : My weeks starts on thursday and ends on Wenesday.
Since it is a pain inserting each weeks line by line, I want to create a stored procedure for this, here's what I came up with :
DELIMITER |
CREATE PROCEDURE proc_insert_weeks()
BEGIN
SELECT year, num_week, date_min, date_max INTO #year, #num_week, #date_min, #date_max
FROM weeks
ORDER BY date_min DESC LIMIT 1;
SET #date_min = DATE_ADD(#date_max INTERVAL 1 DAY);
SET #date_max = DATE_ADD(#date_min INTERVAL 6 DAY);
SET #year= YEAR(#date_min);
IF #num_week < 52 THEN SET #num_week = #num_week + 1;
ELSE SET #num_week = 1;
END IF;
INSERT INTO weeks (year, num_week, date_min, date_max)
VALUES (#year, #num_week, #date_min, #date_max);
END |
DELIMITER ;
So the idea was to take the last record of the table and add 1 week to the dates, but I can't even make it paste the creation of the procedure.
I get an error right after the SELECT query, can someone help me figure out what I am doing wrong ?

Answer 1

drop PROCEDURE proc_insert_weeks;
DELIMITER |
CREATE PROCEDURE proc_insert_weeks()
BEGIN
SELECT year, num_week, date_min, date_max INTO #year, #num_week, #date_min, #date_max
FROM weeks
ORDER BY date_min DESC LIMIT 1;
SET #date_min = DATE_ADD(#date_max, INTERVAL 1 DAY);
SET #date_max = DATE_ADD(#date_min, INTERVAL 6 DAY);
SET #year= YEAR(#date_min);
IF #num_week < 52 THEN SET #num_week = #num_week + 1;
ELSE SET #num_week = 1;
END IF;
INSERT INTO weeks (year, num_week, date_min, date_max)
VALUES (#year, #num_week, #date_min, #date_max);
END |
DELIMITER ;
You can try above code.
You made mistake in DATE_ADD function. You missed , in it.