Assuring optimal performance of database applications starts with coding properly formulated SQL. Poorly written SQL and application code is the cause of most performance problems. As much as 75% of ...

To wrap up, consider a much more complicated SQL expression. Here's one that joins both tables to get names, selects specific columns, and fetches rows with a certain priority.

That being the case, you’ll need a couple additional columns of datetime2 data type, the VALIDFROM and VALIDTO columns, which tells SQL Server which snapshot of the temporal table to use when querying ...

In an earlier column, I showed how to use the new SQL Server JSON support to return JSON objects directly from SQL statements, potentially slimming down the code in your Controller classes. But that ...

an identity column and populate it with a few rows: — Create a test table. CREATE TABLE TestIdentityGaps ( ID int IDENTITY PRIMARY KEY, Description varchar (20) ) GO — Insert some values.