SQL is neither the fastest nor the most elegant ... that returns all of the orders placed by John Doe? When you start doing queries that join more than two tables, that use expressions, or that ...

The process of query optimization is very computationally expensive. For this reason, SQL Server stores execution ... back to 150 to start the test. Which would have flushed the execution plan ...

Transact-SQL will create a new table with all columns from the rows in "old_table" in which the last name starts with "Ja." Create a new table from the results of two separate queries with the ...