There are various reasons why connection can fail to be established. Here are some troubleshooting tips that can be used as a guide to analyze and solve many of the problems.

A "Timeout expired" error in SQL Server means that a connection or command operation didn't complete within the time-out interval that the client application allows ...

Message: Cannot connect to SQL Database: '%server;', Database: '%database;', User: '%user;'. Check the linked service configuration is correct, and make sure the SQL ...

: Threw Exception.Type: System.Data.SqlClient.SqlException, Exception Error Code: 0x80131904, Exception.Message: Ad hoc update to system catalogs is not supported ...

The first (false) assumption mentioned in the infamous Fallacies of distributed computing states that “the network is reliable”. Unfortunately, it turns out that distributed applications leveraging ...

I am doing some fairly intensive database work, and end up inserting many, many records into the database. In an effort to minimize context bloat, I do these inserts 100 at a time, dispose of the ...