I am facing issue of passing dynamic table name in trigger in MySQL.
Here is my
DELIMITER $$
DROP TRIGGER `demo_database`.`my_trigger`$$
create trigger `demo_database`.`my_trigger` AFTER INSERT on `demo_database`.`tablename`
for each row BEGIN
DECLARE done INT DEFAULT FALSE;
DECLARE a varchar(255);
DECLARE cur1 CURSOR FOR SELECT TABLE_NAME FROM information_schema.tables WHERE table_name LIKE '%_pbxware_minilcr' limit 1,10000000000;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN cur1;
read_loop: LOOP
FETCH cur1 INTO a;
IF done THEN
LEAVE read_loop;
END IF;
INSERT INTO a (`server`,`tbd`,`lcr`,`route`,`destination`,`trunk`,`ext`) values (3,NULL,'primary','11','1','78',NULL);
END LOOP;
CLOSE cur1;
END;
$$
DELIMITER ;
Here in above cur1 Cursor, I am fetching tables name and I want to insert value in that (fetched) tables..
Related
I did a mysql procedure that insert in a table a number of rows for each row of other table. Thats the code:
PROCEDURE `name` (`var1` SMALLINT(6), `var2` SMALLINT(6)) BEGIN
DECLARE done INT DEFAULT FALSE;
DECLARE a SMALLINT(6);
DECLARE cur CURSOR FOR SELECT id FROM tableA WHERE fk_id = var2;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN cur;
read_loop: LOOP
IF done THEN
LEAVE read_loop;
END IF;
FETCH cur INTO a;
INSERT INTO tableB VALUES(var1, a);
END LOOP;
CLOSE cur;
My problem is that the last row is inserted two times. How can I resolve this?
Thanks
I have my procedure and is working, but my question is the following,
with the cursor is working correctly, but before the cursor I need a Single Record with several columns, I don´t know if I need another cursor just for one record.
Which would be the right way to get the columns of that single row without a cursor.
The query to execute is:
'SELECT id,anio,fec_iniciointeres FROM mytable WHERE id=3 '
DELIMITER $$
DROP PROCEDURE IF EXISTS db.cal_intereses$$
CREATE DEFINER=`root`#`localhost` PROCEDURE `cal_intereses`()
BEGIN
DECLARE factura_id INT UNSIGNED;
DECLARE val_avaluo DECIMAL(16,2);
DECLARE fec_actual DATE;
DECLARE done INT;
DECLARE cur CURSOR FOR SELECT fac_facturas.id AS factura_id, fac_facturas.val_avaluo FROM fac_facturas WHERE fac_facturas.vigencia_id<=26 AND fac_facturas.estado=1 AND fac_facturas.val_avaluo>0 LIMIT 10;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done=1;
SET fec_actual=(SELECT CURDATE());
SET done = 0;
OPEN cur;
ciclo: LOOP
FETCH cur INTO factura_id,val_avaluo;
IF done=1 THEN LEAVE ciclo; END IF;
DELETE FROM val_interesaux;
IF fec_actual>='2006-07-29' THEN
INSERT INTO val_interesaux(factura_id,fec_inicio) VALUES(factura_id,fec_actual);
END IF;
END LOOP ciclo;
CLOSE cur;
END$$
DELIMITER ;
This is my current trigger:
DELIMITER $$
CREATE DEFINER=`root`#`127.0.0.1` TRIGGER `unique_visit_new_campaign` AFTER INSERT ON `unique_visit` FOR EACH ROW
BEGIN
DECLARE done INT DEFAULT FALSE;
DECLARE pixel_id int;
DECLARE campaign_id varchar(45);
DECLARE cur CURSOR FOR SELECT id FROM pixels;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN cur;
ins_loop: LOOP
FETCH cur INTO pixel_id;
IF done THEN
LEAVE ins_loop;
END IF;
INSERT IGNORE INTO pixels_campaign (campaign_id , pixel_id , date) VALUES (NEW.campaign_id ,pixel_id, current_timestamp);
END LOOP;
CLOSE cur;
END
I need it to NOT TRIGGER when new.campaign_id is empty or equals to the string {campaign_id}
I tried using MySQL IF but with no success.
Also, It kinda auto increment even when there is a campaign id already (when it ignores). any way I can stop that from happening?
Did you try this?
DELIMITER $$
CREATE DEFINER=`root`#`127.0.0.1` TRIGGER `unique_visit_new_campaign` AFTER INSERT ON `unique_visit` FOR EACH ROW
BEGIN
DECLARE done INT DEFAULT FALSE;
DECLARE pixel_id int;
DECLARE campaign_id varchar(45);
DECLARE cur CURSOR FOR SELECT id FROM pixels;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
IF new.campaign = '' or new.campaign = '{campaign_id}' or new.campaign is null THEN
OPEN cur;
ins_loop: LOOP
FETCH cur INTO pixel_id;
IF done THEN
LEAVE ins_loop;
END IF;
INSERT IGNORE INTO pixels_campaign (campaign_id , pixel_id , date) VALUES (NEW.campaign_id ,pixel_id, current_timestamp);
END LOOP;
CLOSE cur;
END IF
END
This is what i tried. I couldnt get my values inserted into table. can anyone help me out ..
DELIMITER $$
USE `SampleDB`$$
DROP PROCEDURE IF EXISTS `Sample`$$
CREATE PROCEDURE `SampleDB`.`Sample`()
BEGIN
#declare variable
DECLARE tenantName VARCHAR(255);
DECLARE tenantAddress VARCHAR(255);
DECLARE done INT DEFAULT FALSE;
DECLARE cur1 CURSOR FOR SELECT tenant_name,tenant_address FROM tenant;
#open cursor
OPEN cur1;
#starts the loop
the_loop: LOOP
#get the values of each column into our variables
FETCH cur1 INTO tenantName,tenantAddress;
IF done THEN
LEAVE the_loop;
END IF;
#Insert it
INSERT INTO tenant(tenant_name,tenant_address)
VALUES (tenantName,tenantAddress);
END LOOP the_loop;
CLOSE cur1;
END$$
DELIMITER ;
Indeed lack 13.6.7.2. DECLARE ... HANDLER Syntax:
...
DECLARE cur1 CURSOR FOR SELECT tenant_name, tenant_address FROM tenant;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done := TRUE;
#open cursor
...
But do you really need a cursor? With a statement like this, you can avoid the cursor:
INSERT INTO `tenant` (`tenant_name`, `tenant_address`)
SELECT `tenant_name`, `tenant_address` FROM `tenant`;
I want to pass in an int value and get back a list of short passwords that are less than this int. I have had trouble modifying the MySQL cursors example: http://dev.mysql.com/doc/refman/5.0/en/cursors.html. I want to print out the rows with short passwords but any time the result has more than one row PhpMyAdmin just displays "Processing request" indefinitely. What am I doing wrong? Its ruining my Saturday productivity!
DELIMITER $$
CREATE DEFINER=`root`#`localhost` PROCEDURE `ShortPasswd`(IN `passwordLength` TINYINT)
BEGIN
DECLARE done INT DEFAULT FALSE;
DECLARE a INT;
DECLARE b VARCHAR(255);
DECLARE cur1 CURSOR FOR SELECT UID, Password
FROM authentication WHERE CHARACTER_length(Password) < passwordLength;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
OPEN cur1;
read_loop: LOOP
FETCH cur1 INTO a, b;
IF done THEN
LEAVE read_loop;
END IF;
SELECT b;
END LOOP;
CLOSE cur1;
END
$$
DELIMITER ;
DELIMITER $$
CREATE DEFINER=`root`#`localhost` PROCEDURE `ShortPasswd`(IN `passwordLength` TINYINT)
BEGIN
SELECT UID, Password
FROM authentication WHERE CHARACTER_length(Password) > passwordLength;
END
$$
DELIMITER ;
You will get rows UID, password directly. as you get from a query when you
call ShortPasswd;
I suggest to modify these lines:
...
DECLARE FINISHED BOOLEAN DEFAULT 0;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
...
IF done THEN
CLOSE cur1;
LEAVE read_loop;
END IF;
...
END LOOP read_loop;
I use the 0/1 instead of FALSE/TRUE, and close the cursor before leave the LOOP.