Usually when I want to add a table to my dbml, I drag the table over from my server explorer.
I'm having issues connecting to my database from the Server Explorer, so I decided to just add my class by right-clicking in the designer and selecting Add Class.
The following are the transactions at the bank branches without concurrency control.
After the lock has been released, B can proceed with her transaction.
The processing should stop just before we call Submit Changes () method.
Step 3 At this point, open SQL Server Management Studio, and execute the following query.
Concurrency control is required to prevent two users from trying to update the same data at the same time. The following are the transactions at the bank branches with concurrency control in place In this example, the account is locked while A is processing the transaction.