JDBC insert statement don't start triggers and functions on MySQL - mysql

Question

I have a Trigger and a Function as given below
Trigger:
DELIMITER $$
USE `server`$$
DROP TRIGGER /*!50032 IF EXISTS */ `calcQumilative`$$
CREATE
/*!50017 DEFINER = 'root'#'%' */
TRIGGER `calcQumilative` BEFORE INSERT ON `cpdata`
FOR EACH ROW BEGIN
DECLARE curr_distance DECIMAL(12,4) DEFAULT 0;
DECLARE prev_id INT;
DECLARE prev_lat DECIMAL(12,7);
DECLARE prev_lon DECIMAL(12,7);
DECLARE prev_idling INT;
DECLARE prev_idlingcount INT;
DECLARE prev_ignition INT;
DECLARE prev_ignitioncount INT;
DECLARE prev_fuelconsumption DECIMAL(12,4);
DECLARE prev_dist DECIMAL(12,4);
DECLARE prev_infuel DECIMAL(12,4);
DECLARE prev_outfuel DECIMAL(12,4);
DECLARE prev_hw_infuel DECIMAL(12,4);
DECLARE prev_hw_outfuel DECIMAL(12,4);
DECLARE prev_tmp_idl_fuel DECIMAL(12,4) DEFAULT 0;
DECLARE curr_idling INT;
DECLARE curr_idlingcount INT DEFAULT 0;
DECLARE curr_ignition INT;
DECLARE curr_ignitioncount INT;
DECLARE curr_fuelconsumption DECIMAL(12,4);
DECLARE curr_idl_fuelconsumption DECIMAL(12,4)DEFAULT 0;
DECLARE curr_tmp_idl_fuel DECIMAL(12,4) DEFAULT 0;
DECLARE curr_infuel DECIMAL(12,4);
DECLARE curr_outfuel DECIMAL(12,4);
DECLARE temprowcount INT DEFAULT 1 ;
SELECT id,latitude ,longitude,idling,idlingcount,ignition,ignitioncount,idlingfuelconsumption,distance,infuel_pulsecount,
outfuel_pulsecount,hw_infuel_pulsecount,hw_outfuel_pulsecount,tmp_idlingfuelconsumption INTO
prev_id,prev_lat,prev_lon,prev_idling,prev_idlingcount,prev_ignition,prev_ignitioncount,prev_fuelconsumption,prev_dist,prev_infuel,
prev_outfuel,prev_hw_infuel,prev_hw_outfuel,prev_tmp_idl_fuel FROM carbonpoddata AS prevrow
WHERE prevrow.id < NEW.id AND NEW.vehicalnum = prevrow.vehicalnum AND DATE (NEW.podtimestamp) = DATE(prevrow.podtimestamp) ORDER BY podtimestamp DESC LIMIT 1;
IF prev_id IS NOT NULL THEN
IF NEW.hw_infuel_pulsecount > prev_hw_infuel THEN
SET curr_infuel = prev_infuel + (NEW.hw_infuel_pulsecount - prev_hw_infuel) ;
ELSE
SET curr_infuel = prev_infuel + (100- prev_hw_infuel) + NEW.hw_infuel_pulsecount ;
END IF;
IF NEW.hw_outfuel_pulsecount > prev_hw_outfuel THEN
SET curr_outfuel = prev_outfuel + (NEW.hw_outfuel_pulsecount - prev_hw_outfuel) ;
ELSE
SET curr_outfuel = prev_outfuel + (100- prev_hw_outfuel) + NEW.hw_outfuel_pulsecount ;
END IF;
IF prev_ignition = NEW.ignition THEN
SET curr_ignitioncount = (prev_ignitioncount+1);
ELSE
SET curr_ignitioncount = 1;
END IF;
IF ( prev_lat = NEW.latitude AND prev_lon = NEW.longitude AND NEW.ignition = 1) THEN
SET curr_idling = 1;
IF prev_idling = curr_idling THEN
SET curr_idlingcount = prev_idlingcount+1 ;
SET curr_fuelconsumption = prev_tmp_idl_fuel + (((curr_infuel - curr_outfuel)* 5) /1000 ) ;
IF curr_idlingcount = 10 THEN
SET curr_idl_fuelconsumption = curr_fuelconsumption;
ELSE
IF curr_idlingcount > 10 THEN
SET curr_idl_fuelconsumption = (((curr_infuel - curr_outfuel)* 5) /1000 ) ;
ELSE
SET curr_tmp_idl_fuel = curr_fuelconsumption;
END IF;
END IF;
ELSE
SET curr_idlingcount = 1;
END IF;
ELSE
SET curr_idling = 0;
IF prev_idling = curr_idling THEN
SET curr_idlingcount = prev_idlingcount+1 ;
ELSE
SET curr_idlingcount = 1;
END IF;
END IF;
SELECT CALCULATE_DISTANCE(prev_lat,prev_lon,NEW.latitude,NEW.longitude) INTO curr_distance;
IF curr_distance IS NULL THEN
SET curr_distance = 0;
END IF;
SET curr_distance = curr_distance + prev_dist;
SET NEW.distance = curr_distance;
SET NEW.ignitioncount =curr_ignitioncount ;
SET NEW.idlingcount =curr_idlingcount;
SET NEW.idling = curr_idling;
SET NEW.infuel_pulsecount = curr_infuel;
SET NEW.outfuel_pulsecount = curr_outfuel;
SET NEW.tmp_idlingfuelconsumption = curr_tmp_idl_fuel;
SET NEW.idlingfuelconsumption = curr_idl_fuelconsumption;
END IF;
END;
$$
DELIMITER ;
Above trigger has a call to function CALCULATE_DISTANCE:
DELIMITER $$
USE `server`$$
DROP FUNCTION IF EXISTS `CALCULATE_DISTANCE`$$
CREATE DEFINER=`root`#`%` FUNCTION `CALCULATE_DISTANCE`(`#oLat` DECIMAL(10,7), `#oLon` DECIMAL(10,7), `#dLat` DECIMAL(10,7), `#dLon` DECIMAL(10,7)) RETURNS DECIMAL(10,7)
NO SQL
BEGIN
RETURN (
(
ACOS(
SIN(`#dLat` * PI() / 180) *
SIN(`#oLat` * PI() / 180) +
COS(`#dLat` * PI() / 180) *
COS(`#oLat` * PI() / 180) *
COS((`#dLon` - `#oLon`) * PI() / 180)
) *
180 / PI()
) *
60 *
1.1515 *
1.609344
);
END$$
DELIMITER ;
When I insert a record into cpdata table it was supposed to start trigger before insert, but it looks like MySQL didn't recognize the same when I used both Hibernate and JDBC to insert a record.
But the trigger works properly if I insert multiple records using SQLYog. What could be the cause and how can I solve it?

Answer 1

I have exactly the same problem. I have found the cause of it, but not the cure.
When a connection eventually are fetched from the DriverManager.getConnection(), the following is automatically executed by the MySQL JDBC Connection:
SET sql_mode='STRICT_TRANS_TABLES'
I have not found a way to disable it yet. One solution would be to execute this before you execute any SQL
SET sql_mode=''
But this is probably not easy in a ORM framework as Hibernate.