All of my tables have a Trigger for CRUD operations. here is a sample: If I update one row, everything works fine and trigger inserts one row in history. For example But if more than one row updated, updatedrow^2 rows will be inserted. For example 9 for 3 rows 100 for 10 rows… What is wrong with my trig…
Tag: database-trigger
Adding checks in postgres table where data is already incorrect
This seemed to be a useful question to me and didn’t find any written information about it anywhere so thought that this might be too obvious. Just want to confirm this: If I alter a postgres table to add a check but the data that is already present is inconsistent with this check, nothing will happen t…
MySql Trigger Function about status
I would like to ask a solution for mysql database. since i made database(order) about 3 column named as order_date(datatype – date),expired_date(datatype – date) and status(varchar(10)). as status …
MYSQL Trigger update not working as expected when value is updated
Looking to use a trigger on a MYSQL table when the row is updated, anytime the row is updated. Only setting the id if the id field is null Currently nothing is happening when the table row is updated Answer Your code should raise a syntax error, since id and username are undefined variables. If you want to ac…
Trigger for automatically updating email field?
I am trying to create a trigger which fires when a new row is inserted into my StudentInformation table without the Email field specified. The trigger should fire and update the email field with …
How do i resolve this trigger in pl/sql?
I want to have a trigger that no more than 3 employees work on a given project this is the code that i have but doesn’t work very well, sometimes work and sometimes doesn’t work. create or replace …
limit column char trigger plsql
I’m starting to learn PLSQL and created a very very simple table, I’m trying to get familiar with functions and triggers. My table: Now to the question, I want to limit before insert or update new row (biuefer) so that the first name must be 8 characters, not less, not more. If you try to insert a…
MySQL trigger in phpMyAdmin [closed]
dont understand, why this not work :C DELIMITER $$ CREATE TRIGGER ‘Reset Pass’ BEFORE UPDATE ON authme FOR EACH ROW BEGIN IF OLD.`password` NEW.`password` THEN UPDATE authme SET `idVK`…
MySql Trigger for notification
In a table in MySql database, I have a boolean column with ‘Yes’ and ‘No’ for appointment confirmation. As soon as appointment gets ‘Yes’, a notification is sent via an AWS Lambda call. I want to send a 12 hour prior notification before the day of the appointment. What is t…
Ordering with PostgreSQL trigger when updating and inserting
I’m looking to sort the rows based on a variable. I’m pulling my hair out trying to wrap my head around this kind of trigger. I’ve only ever written triggers that gets some values from other tables. …