Have you ever worked with CONCAT_NULL_YIELDS_NULL earlier in your career? If yes, you will find this post very interesting for CONCAT.
SQL SERVER – Avoid Using Function in WHERE Clause – Scan to Seek
“Don’t use functions in the WHERE clause, they reduce performance.” I hear this quite often. This is true but this subject is hard to understand in a single statement. Let us see what it means and how to use the function in the WHERE clause. We will be using sample…
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SQL SERVER – Check If String is a Palindrome in Using T-SQL Script – Reverse Function
One of my friends who works in a big MNC recently asked me that if there is any way to check if the String is Palindrome or not. The palindrome is a word, phrase, or sequence that reads the same backward as forward. For example A man, a plan, a canal – Panama! is palindrome so as Was it a car or a cat I saw?
My first reaction was to him was why does this kind of functionality. His answer was they have requirement in their business application where they are building captcha and they may display the image in mirror image as well as a part of challenge code and he can’t have any word which is palindrome as an option. For this he wanted to write a script which will go letter by letter and match them. If they are same, he will not use the word for captcha.
SQL SERVER – Beginning SQL 2012 – Basics of CONVERT FORMAT Function
From the September 17, 2011 blog post on the new SQL 2012 FORMAT function we learned how to format currency and time using different cultures. This is an improvement on what came before and also gives us new possibilities for getting date labels without needing to use DATEPART. In this post we will compare the FORMAT function to the previous techniques and also show you an easy way to grab the part of the date you need for reports. Let us learn about CONVERT FORMAT Function.
SQL SERVER – Significance of Table Input Parameter to Stored Procedure
SQL Server has introduced a functionality to pass a table data form into stored procedures and functions. This feature greatly simplifies the process of developing. The reason being, we need not worry about forming and parsing XML data. With the help of the table Input parameter to Stored Procedure we can save many round trips. Any SQL training will vouch for the fact that SQL is capable of accepting large, complex data in the form of parameters in a stored procedure.
SQL SERVER – TRIM Function to Remove Leading and Trailing Spaces of String – SQL in Sixty Seconds #040 – Video
Trim is one of the most frequently used operation over String data types. A developer often come across a scenario where they have the string with leading and trailing spaces around string. If your business logic suggests that the logs around the spaces are not useful they should be trimmed. However, in SQL Server there is no TRIM function. When a TRIM function is used it will throw an error.
SQL SERVER – Find Weekend and Weekdays from Datetime in SQL Server 2012
Yesterday we had very first SQL Bangalore User Group meeting and I was asked following question right after the session. This question is about to Find Weekend and Weekdays from Datetime in SQL Server 2012.