I have 2 Identical tables and I want any data recorded in the first table to be automatically recorded in the 2nd table using data macros. Can anyone provide me with help on how to go about it?
After update, EXECUTE an INSERT INTO sql statement to the second table
Related
Audit Logs for 50 tables need to insert in one table called audit table whatever the event performed on the tables(insert,update,delete) occurs it should contain new_val,old_val and table name,class name,modified by like these fields into my Audit Table.50 tables data should contain only in one single table called Audit Table
It is showing that i need to write script for every table how many tables it contains
If you will use triggers on your other tables to insert rows into your audit log table, you will indeed need to write three triggers for each table. (ON INSERT, ON UPDATE, ON DELETE).
Pain in the xxx. Triple pain in the xxx. Sigh.
If this were my project I'd consider writing a program to query information_schema.TABLES for a list of the tables involved, and generate the CREATE TRIGGER code for the tables involved. But, depending on the complexity of your table structure, that might be more trouble than it's worth.
Maybe helpful: create trigger insert update delete in 1 syntax
I am looking to get all the update statements with old and new values within a database into one table.
For an example :
I have database name "users".
It contains four tables "primary_info","address_info","avtars","audit_logs"
Now, Whichever update statements executes on primary_info,address_info and avtars table that i need to log into audit logs table with below way.
ID, Table Name, Field_name,Old_value,New_value,Current Datetime
I know we can create triggers to manage such things.But i have database which contains more than 90 tables.So it won't help me to achieve by making trigger (update before) .
So is there any other way which i missed here ?
Thanks in advance.
I have in Microsoft Access a linked table to an ASE Server.
On the server side, the table has no primary key or identity columns.
And has a trigger on insert that validates new entries, so that when the entry is not validated it deletes the entry from the table and writes to "table"_ERR to let the users know what error was produced.
When linking it to Access a composite key is created using 10 columns.
I have this same setup in 10 different tables (all with triggers all linked to Access)
In this particular table when trying to insert/append records to the table through Access i always get the error message:
Single-row update/delete affected more than one row of a linked table. Unique index contains duplicate values.
This error occurs when both table and table_ERR are empty and i'm only trying to insert 1 record.
If I disable the trigger i have no problem inserting records through Access
I have similar triggers in other tables that are working correctly.
What can be causing this issue and does anyone know how to solve this?
I have read that MS Access can mess up the ##identity, even so none of the solutions presented online seem to work.
links : https://groups.google.com/forum/#!msg/microsoft.public.sqlserver.programming/McHdRpPKMhs/SlyObU8w7JMJ
Stop Access from using wrong identity when appending to linked table on SQL server
Thanks in advance.
EDIT: if i try to insert the records directly from a management software (like Aqua Data Studio) there are no erros
Without knowing more specifics about your data itself, it is difficult to say why this might be happening.
However, it sounds like in this specific instance for this specific linked table, your 10 columns are not unique enough to prevent non-distinct rows from being selected.
Suggested fixes:
Add a primary key. Honestly, probably the best and easiest choice.
If for some reason you cannot add a new column to (or alter) your table; you may be able to re-link your table, and re-choose your 10 columns so that they are more unique.
Beyond that, I think we would need more information.
Just out of curiousity, what is the reason for having no key?
I have a query which basically "syncs" all the data from a table in one database, to a replicated table in another database.
Here is the simple query:
TRUNCATE TABLE [Database2].[dbo].[USER_SYNC]
INSERT INTO [Database2].[dbo].[USER_SYNC]
SELECT * FROM [Database1].[dbo].[USER]
Now, after some research, I had a look into using a trigger to do this, however, I read up that stored procedures and heavy queries such as this should not be used within a trigger.
Therefore, what is the best way in which I can automatically run this query from within SQL, whenever a record in database1 is inserted, amended or deleted?
And if what I read up about triggers was incorrect, then how would I go about creating one for my procedure? Thanks.
If you need to sync tables you do not need to truncate one every time on update, delete or insert.
Create identical copy of user table.
Create on update, on delete, on insert triggers on the original user table.
In the trigger update, delete or insert to the duplicate table only one row at a time - the one that was updated, deleted or inserted to the original user table. This will not be a heavy query.
UPDATE:
http://www.mysqltutorial.org/create-the-first-trigger-in-mysql.aspx
http://dev.mysql.com/doc/refman/5.7/en/trigger-syntax.html
I am using MS SQL server 2008. Right now am firing my trigger on deleting records from my Master table to delete corresponding records from my child table. Now am trying to fire the trigger on truncate on my Master table. Is it possible? If yes, kindly help me to find the solution.
TRUNCATE TABLE cannot activate a trigger because the operation does
not log individual row deletions.
Ref.
Suggest you perform an actual delete, and perform in batches if this was the original reason (i.e. locking) you used TRUNCATE instead of DELETE