SQL Server Left Joins
This post gives an example of using left joins on a series of tables in the Itzik Ben-Gan […]
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SQL Self-Contained Subqueries
This example comes from Ikzik Ben-Gan’s book T-SQL Querying. Subqueries are used to nest queries. Subqueries is a […]
Itzik Ben-Gan’s SQL Database
In Itzik’s book T-SQL Querying, published by Microsoft Press in 2015, he uses several tables as examples. Here […]
SQL Server Burton’s Database
There exists a SQL Server online course at Udemy.com that prepares you for the 70-461 exam. The couse […]
SQL Server Common Table Expressions CTE
Common table expressions (CTEs) are another kind of table expression that like derived tables are visible only to […]
SQL Server Create Table
You can create a table using the SSMS GUI, or you can use T-SQL code. This post describes […]
LibreOffice Draw
This post, LibreOffice Draw, includes a PDF file that is a LibreOffice diagram saved as a PDF file. […]
SQL Server Summing Time
This post describes how you can sum a column with a data type of Time in SQL Server. […]
Excel Combine Worksheet Data
The objective for this post is to learn how to combine (merge) more than one Excel worksheet file […]
SQL Server Indexes
This post is a discussion of the basics of indexes in SQL Server. It is based partly on […]
SQL Server Ranking Window Functions
Ranking calculations are implemented in T-SQL as a window function. When you rank a value you do not […]
SQL Server COUNT
In T-SQL, COUNT returns the number of items in a group. COUNT works like the COUNT_BIG function. The […]