I have two tables with the following column names.
users
ui | email | pass
user_profiles
_email | qty | lvl
I am attempting to make sure that everytime a new user is added to the users table that the user_profiles table creates a new row for the new user. However it fails. After reading through many sample trigger statements I can't seem to find the error.
CREATE TRIGGER updatUserProfilesTBL AFTER INSERT ON users
BEGIN
INSERT INTO user_profiles (_email)
VALUES (new.email)
END;
Looks like you are missing the FOR EACH ROW. Additionally, you will need to alter the DELIMITER if executing this through the MySQL command line and add a ; after the insert statement.
DELIMITER $$
CREATE TRIGGER updatUserProfilesTBL AFTER INSERT ON users
FOR EACH ROW BEGIN
INSERT INTO user_profiles (_email)
VALUES (new.email);
END$$
DELIMITER ;
According to the CREATE TRIGGER spec, it is not optional.
Related
Creating a trigger is not working as expected, whenever I try to insert data into master table it give me error that count does't match. I am unable to identify where I'm doing wrong.
I have attached error image please look for further demonstration
DELIMITER $$
DROP TRIGGER IF EXISTS `trg_apl_b_info_after_insert`
CREATE
TRIGGER `trg_apl_b_info_after_insert` AFTER INSERT ON `tbl_appli_basic_info`
FOR EACH ROW BEGIN
DECLARE vApplicant VARCHAR(256);
-- Find appli_basic_info_id & apli_reg_no of Applicant performing the INSERT into table
SELECT USER() INTO vApplicant;
-- Insert record into tbl_appli_basic_info_after_insert table
INSERT INTO tbl_appli_basic_info_after_insert
( appli_basic_info_id,
apli_reg_no,
full_name,
after_insert_datetime)
VALUES
( NEW.appli_basic_info_id,
NEW.apli_reg_no,
NEW.full_name,
SYSDATE(),
vApplicant );
END;
$$
DELIMITER ;
Error in phpMyAdmin
Your insert statement lists 4 fields however you provided 5 values. Hence count not matched.
I'm trying to create a trigger, however I keep getting back a syntax error.
Here's the statement:
DELIMITER $$
CREATE TRIGGER `swtalentbank`.`after_candidate_insert`
AFTER INSERT ON `Candidates` FOR EACH ROW
BEGIN
INSERT INTO useradmin (username, talent)
VALUES (NEW.email, 1);
UPDATE `Candidates` SET UserID = useradmin.userid where useradmin.username = NEW.email;
END
DELIMITER ;
I have a registration form on my site. When a person registers it populates the Candidates table with their profile information.
In the Candidates table, there are various fields, two of them being 'email' and 'UserID'.
UserID is also the PK in 'useradmin', so I'm linking the two up.
So when a user registers, I need to insert a record into 'useradmin' with the email address that's just been used to register, and then update the 'Candidates' table, with UserID that's just been created in 'useradmin'.
I hope this makes sense?
NB. I am changing the delimiter before running the statement.
Besides properly using DELIMITER when creating a trigger you have at least two fundamental issues with your current code:
In MySQL you can't use issue a DML statement (in your case UPDATE) against a table (candidates) on which you defined a trigger (also candidates). Your only option is to use BEFORE trigger and set a value of userid column of a row being inserted to a proper value.
You can't arbitrarily reference a column (useradmin.userid) of a table out of the context like you did in your UPDATE. You didn't joined useradmin table or used it in a subquery.
That being said and assuming that userid in useradmin table is an auto_increment column your trigger might look like this
DELIMITER $$
CREATE TRIGGER after_candidate_insert
BEFORE INSERT ON candidates
FOR EACH ROW
BEGIN
INSERT INTO useradmin (`username`, `talent`) VALUES (NEW.email, 1);
SET NEW.userid = LAST_INSERT_ID();
END$$
DELIMITER ;
Here is SQLFiddle demo
You should use semicolon after end your insert query.
You can use INSERT ... ON DUPLICATE KEY UPDATE syntax for your purpose
try out this...
DELIMITER $$
CREATE TRIGGER `swtalentbank`.`after_candidate_insert`
AFTER INSERT ON `Candidates` FOR EACH ROW
BEGIN
INSERT INTO useradmin (username, talent)
VALUES (NEW.email, 1);
UPDATE `Candidates` SET UserID = useradmin.userid where useradmin.username = NEW.email;
END $$
DELIMITER ;
In MySQL I tried to define a trigger like this:
DELIMITER $$
CREATE TRIGGER vipInvite
AFTER INSERT ON meetings
FOR EACH ROW
BEGIN
IF(NOT EXISTS (SELECT * FROM participants
WHERE meetid = NEW.meetid AND pid ='vip'))
THEN
IF(EXISTS(SELECT * FROM meetings WHERE meetid = NEW.meetid AND slot > 16))
THEN
INSERT INTO participants(meetid, pid)
VALUES (NEW.meetid,(SELECT userid
FROM people WHERE people.group = 'tap' GROUP BY invite));
END IF;
END IF;
END $$
DELIMITER ;
Produces this error:
This version of MySQL doesn't yet support 'multiple triggers with the same action time and event for one table.
Is there a way to work around this so I can define multiple triggers?
This error means you already have an AFTER INSERT trigger on meetings table.
If it is the same trigger (meaning vipInvite) that you created earlier and now you want to replace it then you need to drop it first
DROP TRIGGER vipInvite;
DELIMITER $$
CREATE TRIGGER vipInvite
...
END$$
DELIMITER ;
Now if you have some other trigger you have to merge code from both triggers into one, then drop existing trigger, and then create a new one.
To show the list of existing triggers use SHOW TRIGGERS.
SHOW TRIGGERS WHERE `table` = 'meetings';
How to reproduce this error in MySQL:
ERROR 1235 (42000): This version of MySQL doesn't yet support 'multiple
triggers with the same action time and event for one table'
Run the following queries:
DELIMITER //
CREATE TRIGGER mytrigger1 AFTER INSERT ON mytable
FOR EACH ROW
BEGIN
END//
DELIMITER //
CREATE TRIGGER mytrigger2 AFTER INSERT ON mytable
FOR EACH ROW
BEGIN
END//
If you want to hook more than one action onto the same event/table, you will have to cram all of it into one trigger. You could call many stored procedures like this:
DELIMITER //
CREATE TRIGGER mytrigger1 AFTER INSERT ON mytable
FOR EACH ROW
BEGIN
CALL fromulate_the_moobars(NEW.myid);
CALL its_peanut_butter_jelly_time(NEW.myname);
END//
I am trying to write a MySQL trigger. I have two tables that look like this:
When a customer makes a purchase a new record is added to each table. I have added column ‘sku_copy’ to Table B, so it does not get populated when a new record is created.
When a new record is created, I want my trigger to copy the ‘sku’ field in Table A to the ‘sku_copy’ field in Table B. However, the problem I am having is how to structure the following condition in the trigger.
IF: ‘order_id’ in Table A matches ‘order_id’ in Table B. THEN: copy ‘sku’ from that Table A record to the record in Table B with the matching ‘order_id’. The data should be added to Table B ‘sku_copy'.
ELSE: don’t do anything.
Can someone show me how to write this into my trigger?
Thanks for any help you can give.
Try this but why do u think of using trigger for this ?
DELIMITER $$
CREATE TRIGGER trigger_name
AFTER INSERT ON tableA
FOR EACH ROW BEGIN
INSERT INTO tableB
SET sku_copy = OLD.sku,
order_id = OLD.order_id,
order = OLD.order;
END$$
DELIMITER ;
I want to post the trigger that was constructed with examples offered here and on another forum. Thanks to everyone who helped with this.
DELIMITER $$
CREATE TRIGGER sku_AfterInsert
AFTER INSERT ON uau3h_virtuemart_order_items
FOR EACH ROW BEGIN
UPDATE uau3h_virtuemart_orders
SET order_item_sku_copy = NEW.order_item_sku
WHERE virtuemart_order_id = NEW.virtuemart_order_id;
END$$;
DELIMITER ;
this is the query that i am using
create trigger trig1 after insert on participant for each row
begin
insert into team(sap) select sap from participant order by ID desc limit 1,1
end;
it is supposed to copy the sap field from the participant table into the sap field of the team table after a new row is inserted into the participant table
the engine shows me an unexpected end of input error at the end of "end"
i've tried numerous methods to rework the query but i keep getting the same error
what am i doing wrong?
thanks
You are using trigger than no need to run a query on same table to get latest sap value, you can directly get that value using new.sap.
Problem in your query, In your query you haven't put semicolon(;) after INSERT..SELECT query and END keyword.
This will work for you:
DELIMITER $$
DROP TRIGGER /*!50032 IF EXISTS */ `trig1`$$
CREATE
TRIGGER `trig1` AFTER INSERT ON `participant`
FOR EACH ROW BEGIN
INSERT INTO team(sap)
VALUES(new.sap);
END;
$$
DELIMITER ;