In the database structured query language (SQL), the DELETE statement removes one or more records from a table.

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Oracle 10g: Properly using ora_rowscn to detect table row changes (ie, inserts, updates, deletes)

Some research into checking when a table's records were last updated, modified, or deleted has lead me to the pseudo column known as ora_rowscn. First, I do this: select max(ora_rowscn) from ...
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Clear all tables with one DELETE

Is it possible to clear all tables with one request? I have tried the following with no result. DELETE a,b,c,d,e,f,g,h,i,j,k,l,m,n,o FROM jos_bet_details as a, jos_bet_1x2 as b, jos_bet_1x2_best as ...
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How to find out who deleted some data SQL Server

My boss had a query from a customer yesterday asking how they could find out who deleted some data in their SQL Server database (it is the express edition if that matters). I thought this could be ...
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3answers
364 views

What are best practices for safely permanently deleting a database?

We have an "organic" environment, meaning people piled code on code for ten years with minimal oversight or documentation. The server I use has several databases which I believe are no longer being ...
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2answers
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Trigger: move deleted rows to archive table

I have a small (~10 rows) table called restrictions in my PostgreSQL database, where values are deleted and inserted on a daily basis. I would like to have a table called restrictions_deleted, where ...
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4answers
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Methods of speeding up a huge DELETE FROM <table> with no clauses

Using SQL Server 2005. I am performing a huge DELETE FROM with no where clauses. It's basically equivalent to a TRUNCATE TABLE statement - except I'm not allowed to use TRUNCATE. The problem is ...
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Best way to delete very large recordset in Oracle

I manage an application which has a very large (nearly 1TB of data with more than 500 million rows in one table) Oracle database back end. The database doesn't really do anything (no SProcs, no ...
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How should deletions be handled in the database?

I'd like to implement an "undelete" feature in a web application such that a user can change her mind and recover a deleted record. Thoughts on how to implement this? Some options I've considered are ...