I am trying to execute trigger statement in MySql 5.1.41 but i am getting an error which is beyond my comprehension. Any help will be appreciated.
Following is the trigger code:
create TRIGGER populate_modality_trigger AFTER INSERT on series
FOR EACH ROW BEGIN
DECLARE x int;
select count(*) into x from lu_modality_alias l WHERE l.modality=NEW.modality;
IF (x =0 OR x is NULL) THEN
INSERT INTO lu_modality_alias
set modality = NEW.modality,
modality_alias = NEW.modality
;
END if;
end;
When I run above code, I get following error:
MySQL said: Documentation #1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 3
The interesting thing is that when i execute the same code from Naviacat query editor, it runs successfully and trigger is created.
But the same fails from phpMyAdmin sql.
You need to change the delimiter character so the MySql parser doesn't end the CREATE statement parsing at the first semi-colon
delimiter //
create TRIGGER populate_modality_trigger AFTER INSERT on series
FOR EACH ROW BEGIN
DECLARE x int;
select count(*) into x from lu_modality_alias l WHERE l.modality=NEW.modality;
IF (x =0 OR x is NULL) THEN
INSERT INTO lu_modality_alias
set modality = NEW.modality,
modality_alias = NEW.modality
;
END if;
end //
delimiter ;
Related
Here is my trigger, I am getting the MySQL syntax error. I wanted to reduce the balance from sms_index table sms_count column value.
CREATE TRIGGER sms_log_update AFTER UPDATE ON sms_index
FOR EACH ROW
BEGIN
IF NEW.approved_status = '1' THEN
UPDATE sms_package SET balance = (balance - OLD.sms_count) WHERE group_id = OLD.ins_group_id;
END IF;
END;
Error Message:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 5
Your code looks correct, except for the possible problem of the delimiter. Try the following:
DELIMITER //
CREATE TRIGGER sms_log_update AFTER UPDATE ON sms_index
FOR EACH ROW
BEGIN
IF NEW.approved_status = '1' THEN
UPDATE sms_package SET balance = (balance - OLD.sms_count)
WHERE group_id = OLD.ins_group_id;
END IF;
END;//
DELIMITER ;
From the documentation:
However, just as for stored routines, if you use the mysql program to define a trigger that executes multiple statements, it is necessary to redefine the mysql statement delimiter so that you can use the ; statement delimiter within the trigger definition.
I just want to create trigger in my sql but some error happened
this is the code
CREATE TRIGGER delete_santri_in_kamar
AFTER UPDATE ON
santri
FOR EACH ROW
BEGIN
DECLARE stat INT
SET stat = select status FROM santri WHERE id_santri=new.id_santri
IF (stat = 0) THEN
DELETE FROM santri_kamar_asrama WHERE id_santri=new.id_santri
END IF
END
and this is the error message
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SET stat = select status FROM santri WHERE id_santri=new.id_santri
IF (stat =' at line 7
please help me
Add semicolons after the statements and change default delimiter(;) before the code of create trigger. Otherwise it will give
SQL Error(1064): You have an error in your SQL Syntax;
After the create trigger code make ; as default delimiter
DELIMITER $$
CREATE TRIGGER delete_santri_in_kamar
AFTER UPDATE ON
santri
FOR EACH ROW
BEGIN
DECLARE stat INT;
SET stat = (select status FROM santri WHERE id_santri=new.id_santri);
IF (stat = 0) THEN
DELETE FROM santri_kamar_asrama WHERE id_santri=new.id_santri;
END IF;
END
$$
DELIMITER ;
I am trying to create a trigger that marks items as deleted when they are inserted into the database.
Sadly I can't get my DECLARE to stop erroring, I have looked at the DECLARE docs and also at a few examples but I must be missing something.
The query I have so far is:
CREATE TRIGGER set_deleted BEFORE INSERT ON customercontact
FOR EACH ROW
BEGIN
DECLARE numrow INT; /* line 4 */
SELECT COUNT(*)
INTO numrow
FROM orders
WHERE NEW.order_id = 1;
if numrow >= 1 THEN
SET new.deleted = 1;
END IF;
END
The error message is showing:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 4
Thanks for your help and preventing me from defenestrating myself!
Try this:
DELIMITER $$
CREATE TRIGGER set_deleted BEFORE INSERT ON customercontact
FOR EACH ROW
BEGIN
DECLARE numrow INT; /* line 4 */
SELECT COUNT(*)
INTO numrow
FROM orders
WHERE NEW.order_id = 1;
if numrow >= 1 THEN
SET new.deleted = 1;
END IF;
END$$
DELIMITER ;
You need to change the delimiter when you create TRIGGER or STORED PROCEDURE.
By default, MySQL itself recognizes the semicolon as a statement delimiter, so you must redefine the delimiter temporarily to cause MySQL to pass the entire stored program definition to the server. Otherwise, MySQL breaks CREATE TRIGGER, before it reaches the END statement (on the first semicolon, which, in your case, is DECLARE statement).
You can see the documentation for more details:
http://dev.mysql.com/doc/refman/5.5/en/stored-programs-defining.html
I am trying to write trigger in Mysql (5.1), but getting following error, please help.
The error is:
SQL Error (1064): You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right
syntax to use near '' at line 5.
Purpose for writing trigger:
I am writing application where I am assigning users, and I want to store unassigned usercount to field cluster_count in IX_branchdetails table.After updating the base table.
trigger:
DELIMITER $$
CREATE TRIGGER upd_trg AFTER
UPDATE ON DBNAME.BASETABLE
FOR EACH ROW
BEGIN
DECLARE m_branchcode INTEGER;
DECLARE cnt INTEGER;
DECLARE cursor_branch CURSOR FOR
SELECT DISTINCT branchcode
FROM ix_branchdetails;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
open cursor_branch;
my_loop: loop
set done = false;
fetch cursor_branch into m_branchcode;
if done then
leave my_loop;
end if;
select count(1) into cnt from (select count(1) from BASETABLE Where IX_BRANCHCODE = m_branchcode) as temp;
update DBANAME.ix_branchdetails set DBANAME.ix_branchdetails.cluster_count = cnt where DBANAME.ix_branchdetails.BRANCHCODE = m_branchcode;
end loop my_loop;
close cursor_branch;
END $$
DELIMITER ;
I don't see a declare for the done variable:
DECLARE done TINYINT DEFAULT FALSE;
The semicolon (;) is the default delimiter for MySQL statements. To get a procedure/function/trigger defined, we normally see the statement delimiter changed to a string that doesn't appear in the statement:
DELIMITER $$
CREATE PROCEDURE ...
END$$
DELIMITER ;
If the delimiter is not changed from the semicolon, then when MySQL encounters the first semicolon in your procedure/function/trigger, it sees that as the end of the statement, which is not what you want. You want MySQL to see the entire block of code as a single statement.
I'm trying to benchmark a stored procedure.
select benchmark(100000000,(select 1));
this benchmark works
but the following benchmark doesn't:
do benchmark(1000,(call test_login_user('a')));
it produces the following error:
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'call xpofb_login_user('a')))' at line 1
any ideas how to resolve the issue ?
You can't do this with benchmark(), but you could create a stored procedure to do it.
Here's an example:
delimiter $$
create procedure benchmark_test_login_user (p_username varchar(100),
p_count int unsigned)
begin
declare v_iter int unsigned;
set v_iter = 0;
while v_iter < p_count
do
call test_login_user(p_username);
set v_iter = v_iter + 1;
end while;
end $$
delimiter ;
call benchmark_test_login_user('a',1000);
You can't
http://dev.mysql.com/doc/refman/5.0/en/information-functions.html#function_benchmark
Only scalar expressions can be used. Although the expression can be a subquery, it must return a single column and at most a single row. For example, BENCHMARK(10, (SELECT * FROM t)) will fail if the table t has more than one column or more than one row.