Try this: DELIMITER $$ CREATE TRIGGER occupy_trig AFTER INSERT ON `OccupiedRoom` FOR EACH ROW begin DECLARE id_exists Boolean; — Check BookingRequest table SELECT 1 INTO @id_exists FROM BookingRequest WHERE BookingRequest.idRequest= NEW.idRequest; IF @id_exists = 1 THEN UPDATE BookingRequest SET status=”1″ WHERE idRequest = NEW.idRequest; END IF; END; $$ DELIMITER ;
OLD and NEW are null or not defined in a statement-level trigger. Per documentation: NEW Data type RECORD; variable holding the new database row for INSERT/UPDATE operations in row-level triggers. This variable is null in statement-level triggers and for DELETE operations. OLD Data type RECORD; variable holding the old database row for UPDATE/DELETE operations in … Read more
Here we have two tables named table1 and table2. Using a trigger I’ll update table2 on insertion into table1. Create the tables CREATE TABLE table1 ( id integer NOT NULL, name character varying, CONSTRAINT table1_pkey PRIMARY KEY (id) ) CREATE TABLE table2 ( id integer NOT NULL, name character varying ) The Trigger Function CREATE … Read more
try this for sql server CREATE TRIGGER yourNewTrigger ON yourSourcetable FOR INSERT AS INSERT INTO yourDestinationTable (col1, col2 , col3, user_id, user_name) SELECT ‘a’ , default , null, user_id, user_name FROM inserted go
No, it is not possible. As the error message says, only dependency properties can be targets of WPF bindings, and DataTrigger.Value is not a dependency property. So you will need to assign an actual value. The workaround is to use a MultiBinding whose child Bindings are the two bindings you want to compare, with an … Read more
You normally use the terms in a trigger using :old to reference the old value and :new to reference the new value. Here is an example from the Oracle documentation linked to above CREATE OR REPLACE TRIGGER Print_salary_changes BEFORE DELETE OR INSERT OR UPDATE ON Emp_tab FOR EACH ROW WHEN (new.Empno > 0) DECLARE sal_diff … Read more
Set the pageX and pageY properties (which are normalized) on the event object and pass it to .trigger(), like this: var e = new jQuery.Event(“click”); e.pageX = 10; e.pageY = 10; $(“#elem”).trigger(e);
It returns true if a column was updated. An update means that the query has SET the value of the column. Whether the previous value was the same as the new value is largely irelevant. UPDATE table SET col = col it’s an update. UPDATE table SET col = 99 when the col already had … Read more
SELECT Concat(‘DROP TRIGGER ‘, Trigger_Name, ‘;’) FROM information_schema.TRIGGERS WHERE TRIGGER_SCHEMA = ‘your_schema’; Copy and paste the generated sql