Difference Between Having and Where Clause in Sql Server

Both Having Clause and Where clause is used to filter the data coming from the Select statement, but still there are some differences between them. These difference are given below:- To show the difference between the Where Clause and the Having clause we will going to use the table EmployeeDeptInfo whose create query statement  is […]

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Sql Server- Difference between Stored Procedure and Function

In Sql Server, both functions and stored procedures can be defined as the logically grouping of Sql statements formed to complete a task, but still there are many differences between Stored procedure and Functions. These differences can be summarized as follows:- 1) A stored procedure can return a value or it may not return any […]

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Difference between Delete and Truncate Command

Although the Delete and Truncate Commands logically does the same work of deleting the rows from the table but still there are many differences in their working. These differences are given below:- 1) Delete command maintained the logs files of each deleted row but Truncate command do not maintain the logs files for each deleted […]

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Difference between Primary key and Unique key

var gaJsHost = ((“https:” == document.location.protocol) ? “https://ssl.” : “http://www.”); document.write(unescape(“%3Cscript src=’” + gaJsHost + “google-analytics.com/ga.js’ type=’text/javascript’%3E%3C/script%3E”)); try { var pageTracker = _gat._getTracker(“UA-11608194-1”); pageTracker._trackPageview(); } catch(err) {} Both Primary key and Unique key enforce uniqueness of the column on which they are defined but still there are some differences between them. The differences are defined […]

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