mysql insert based on condition - mysql

Question

I need to insert some values in a table based on a condition. Basically I have 2 fields:
From and To
I need to insert the values in their range in increments of 11.
Suppose the following
From = 79090200
To = 79090233
So the following values would be saved:
79090200
79090211
79090222
79090233
I still a newbie so any help would mean a lot.

Answer 1

You can generate a range of numbers using UNION and insert based on that. Something like this:-
INSERT INTO SomeTable (SomeNumeric)
SELECT 79090200 + ((Units.i + Tens.i * 10 + Hundreds.i * 100) * 11) AS SomeNumber
(SELECT 0 i UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 UNION SELECT 7 UNION SELECT 8 UNION SELECT 9) Units,
(SELECT 0 i UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 UNION SELECT 7 UNION SELECT 8 UNION SELECT 9) Tens,
(SELECT 0 i UNION SELECT 1 UNION SELECT 2 UNION SELECT 3 UNION SELECT 4 UNION SELECT 5 UNION SELECT 6 UNION SELECT 7 UNION SELECT 8 UNION SELECT 9) Hundreds
HAVING SomeNumber BETWEEEN 79090200 AND 79090233

Answer 2

You can use below stored procedure to store these values in a table
DELIMITER $$
USE test$$
DROP PROCEDURE IF EXISTS `sp_increment`$$
CREATE DEFINER = `root`#`localhost` PROCEDURE `test`.`sp_increment`()
BEGIN
DECLARE start_val INT;
DECLARE end_val INT;
SET start_val=79090200;
SET end_val=79090233;
WHILE start_val <= end_val DO
INSERT INTO mytable (mycolumn) VALUES(start_val);
SET start_val = start_val + 11;
END WHILE;
END$$
DELIMITER ;
You can use below procedure to get values from a table-
DELIMITER $$
USE test$$
DROP PROCEDURE IF EXISTS `sp_increment`$$
CREATE DEFINER = `root`#`localhost` PROCEDURE `test`.`sp_increment`()
BEGIN
DECLARE s_val INT;
DECLARE e_val INT;
SELECT st_val, end_val INTO #start_val, #end_val FROM my_val;
SET s_val=#start_val;
SET e_val=#end_val;
WHILE s_val <= e_val DO
INSERT INTO increment_tbl VALUES(s_val);
SET s_val = s_val + 11;
END WHILE;
END$$
DELIMITER ;