Tag Archive

Tag Archives for " DATEDIFF "

Joins versus Subqueries SQL Puzzle

Joins versus Subqueries

In this puzzle, we’re going to learn about joins versus subqueries.  In many queries you can substitute joins and subqueries.  Yet, since each has their strengths, it isn’t wise to do so.  Once you have worked through this puzzle you see some of the benefits and disadvantages of joins versus subqueries. Solving puzzles is a […]

Continue reading

Learn to use SQL Server Date Functions

SQL server’s date functions provide you a set of function that you can use to manipulate dates.  The function are used for a wide variety of operation such as adding weeks to a date, calculating the difference between two dates, or to decompose a date into its fundamental parts. If you not familiar with SQL […]

Continue reading