mysql-triggers

MySQL Trigger - Storing a select in a variable

I have a trigger in which I want to have a variable which holds an INT i get from a (SELECT..). So I can use it in two IF statements; so I don't have to call the (SELECT...) twice. How do you declare/use variables in MySQL triggers? ...

Creating trigger for table in MySQL database (syntax error)

I have trouble defining a trigger for a MySQL database. I want to change a textfield before inserting a new row (under a given condition). This is what I have tried: CREATE TRIGGER add_bcc BEFORE INSERT ON MailQueue FOR EACH ROW BEGIN IF (NEW.sHeaders LIKE "%[email protected]%") THEN SET NEW.sHeaders = NEW.sHeaders + "BCC:inter...

MySql Trigger, before insert delete a row in the same table

Is this possible? Before a row is inserted into tableA, I need to delete any rows in tableA containing duplicate data.The trigger below does not generate an error but doesn't work either. CREATE TRIGGER remove_old_user BEFORE INSERT ON userStatus FOR EACH ROW DELETE FROM userStatus WHERE username = NEW.username Any ideas? ...

Using a MySQL trigger to update all fields matching a condition

Hi, What I am trying to do is to set the column of each insert query to the latest value of $i I've never used a trigger in MySQL before but I do believe that's the easiest way to do this. I would be open to other ideas and suggestions. Right now I have: $i = 1; foreach($_FILES["upload_project_images"]["name"] as $key => $name) { ...

MySQL Trigger programatically in C#

Hello, I have problem with creating a simple MySQL trigger in C#. I'm using StringBuilder to build the following command string: DELIMITER $$ DROP TRIGGER /*!50032 IF EXISTS */ dbname.table$$ CREATE TRIGGER dbname.inserttrigger AFTER INSERT ON dbname.table FOR EACH ROW BEGIN ... END; $$ DELIMITER ; when I try cmd.executeNonQuer...

Where i write MySQL trigger

Hi all, I didn't write any trigger for my works. Now i want to know how to write trigger . And where it write . Is it possible to write trigger as sql query in phpmyadmin .. Please help me to write a simple trigger... I tried like below Create Trigger sales_bi_trg BEFORE INSERT ON sales FOR EACH ROW BEGIN DECLARE num_row INTEGER ; D...

loops and conditionals inside triggers

I have this piece of logic I would like to implement as a trigger, but I have no idea how to do it! I want to create a trigger that, when a row is deleted, it checks to see if the value of one of its columns exists in another table, and if it does, it should also perform a delete on another table based on another column. So say we had a...

MySQL Trigger with dynamic table name

I've look around a bit and can't quite find an answer to my problem: I want a trigger to execute after an insert on a table and to take that data that is being inserted and do two things Create a new table from the client id and partner id Insert the 'data' that just was inserted into the new table I am fairly new to the Stored proc...

Is It Possible to update any trigger in Information schema?

Is It Possible to update any trigger in Information schema? ...

I need to create Trigger for delete action which backsup all fields old value in audit table

I need to create Trigger for delete action which backsup all fields old value in audit table. I have a table structure for audit table as id, menuid, field, oldvalue, changedone now whenever any of the row is deleted from its mother table(menu) having 21 fields in count, every fields old value should get insert in the audit tab...

MySQL Trigger creation

I have an application where I need to INSERT an auto_increment value from a PK in another table. I know how to do this in PHP, but I need to have this done at the DB level, since I cannot change the program logic. I am new to triggers, so I'm sure this will be an easy answer for someone. Here is what I have so far: DELIMITER // ...

What is wrong with this trigger in mysql?

Hi all, Below is trigger that I need to create but It is not getting created.Please any buddy can explain me what is wrong with this trigger ? Help me please. DELIMITER $$ CREATE TRIGGER property_history_update AFTER UPDATE ON `properties` FOR EACH ROW BEGIN IF OLD.ListPrice != NEW.ListPrice THEN INSERT INTO `property_hist...

problem in creating a trigger

I am facing a problem in creating a trigger and i am not sure why this is erroring out.can you please help me. I have written a trigger mentioned below and it gives me this error upon trying to execute the trigger ... 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the rig...

MySQL Trigger With SELECT Statement.

Hello, I want to make trigger that having SELECT Statement in it but that SELECT query returns more than one rows so, How can I handle that multiple rows in trigger and looping that rows in MySql? Please Help me. :Jimit ...

help with mysql triggers (checking values before insert)

hi I'm quite new to mysql and I'm trying to figure out how to use triggers. what I'm trying to do: I have 2 tables, max and sub_max, when I insert a new row to sub_max I want to check if the SUM of the values with the same foreign_key as the new row are less than the value in the max table. I think this sounds confusing so here are my ...

Mysql: how do I make an exact working copy of a table?

I am working on a restructuring of a legacy database and its associated applications. To keep old and new working in parallel I have created a development database and copied the tables of interest to it, e.g. create database devdb; drop table if exists devdb.tab1; CREATE TABLE devdb.tab1 like working.tab1; insert into devdb.tab1 selec...

archiving table records to another table by trigger(move daialy table records to weekly table, evry day)

I have written this trigger in mysql 5: create trigger changeToWeeklly after insert on tbl_daily for each row begin insert into tbl_weeklly SELECT * FROM vehicleslocation v where v.recivedate < curdate(); delete FROM tbl_daily where recivedate < curdate(); end; i want to archive records by date, move yesterday inserte...

mySQL Trigger works after console insert, but not after script insert.

Hello, I have a strange wird problem with a trigger: I set up a trigger for update other tables after an insert in a table. If i make an insert from mysql console, all works fine, but if i do inserts from external python script, trigger does nothing, as you can see bellow. When i insert from console, works fine, but insert THE SAME D...

Get current updated column name to use in a trigger

Is there a way to actually get the column name that was updated in order to use it in a trigger? Basically I'm trying to have an audit trail whenever a user inserts or updates a table (in this case it has to do with a Contact table) CREATE TRIGGER `after_update_contact` AFTER UPDATE ON `contact` FOR EACH ROW BEGIN INSER...

MySQL INSERT BEFORE TRIGGER Fails?

I'm running MySQL 5.1.48 on Windows XP and the following trigger test doesn't work: -- Drop the old table DROP TABLE IF EXISTS `ikasan01`.`ikasanwiretap`; -- Create CREATE TABLE `ikasan01`.`ikasanwiretap` ( `Id` bigint(20) NOT NULL AUTO_INCREMENT, `ModuleName` varchar(255) NOT NULL, `FlowName` varchar(255) NOT NULL, `ComponentName...