I have a table with Identity(1,1) as Primary Key and been using this table for some months now. All of a sudden, I got the following error message from my app (VB5) saying that there's a primary key violation :
"[Microsoft][ODBC SQL Server Driver][SQL Driver] Violation of PRIMARY KEY constraint 'PK_Staff_Work_Hours_2__78'. Attempt to insert duplicate key in object 'Staff_Work_Hours' (#2627) [Microsoft][ODBC SQL Server Driver][SQL Server] Command has been aborted. (#2721) "
How did that happen?? What is the cause of it?? and how can I fix it???
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I wrote this interesting script that really help me find jobs or procedures when working in a huge environment. I could I have written it as a Procedure but then I would have to have it on each machine or have a link to a server-related search that …
Load balancing is the method of dividing the total amount of work performed by one computer between two or more computers. Its aim is to get more work done in the same amount of time, ensuring that all the users get served faster.
Viewers will learn how to use the UPDATE and DELETE statements to change or remove existing data from their tables.
Make a table:
Update a specific column given a specific row using the UPDATE statement:
Remove a set of values using the DELETE s…