Category Archives: SQL Server

This category contains all SQL related articles

SQL Script to find all the triggers defined on a database or on a single table

By | August 14, 2015

SQL Script to find triggers in SQL Database Sometime we need to find all the triggers defined on the database. So in this case, we can use the below SQL Query:-SELECT tbl.name as [Table Name] , trig.name as [Trigger Name] , trig.is_disabled FROM [sys].[triggers] as trig INNER JOIN sys.tables as tbl ON trig.parent_id = tbl.object_id… Read More »

Interview question – Is Clustered index on column with duplicate values possible?

By | August 13, 2015

Clustered index on column with duplicate values Through this article, we are going to discuss three important interview questions of SQL which are given below:-   1) Can we create clustered index on a column containing duplicate values?  2) Can we create a Primary Key on a table on which a clustered index is already defined? 3) If a… Read More »

Script to find complete months between two given dates

By | July 10, 2015

Complete months between two given dates Below script will help in finding the complete months within the 2 given dates. In the below script we takes below dates as exampleStartdate =2015-07-05 Enddate =2016-01-06 /**********************Script Start**************************/ IF (object_id(‘tempdb..#month’) is not null) DROP TABLE #month CREATE TABLE #month (id int identity(1,1),MonthStartDate DATETIME,MonthEndDate DATETIME) DECLARE @startdate AS DATETIME… Read More »

Script to find the complete weeks within two given dates

By | July 10, 2015

Complete weeks within two given dates Sometimes we need to find out the complete weeks within two given dates. Below script will help in finding the complete weeks within 2 given dates. In this script, I have used below dates as exampleStartdate=2015-04-12 Enddate=2015-06-10 SET DATEFORMAT YMD if (object_id(‘tempdb..#weekdays’) is not null) drop table #weekdays Declare… Read More »

Importance of Best Practices in database programming

By | February 1, 2015

Best Practices in database programming For any programming language, just writing the code is not well enough. It should be written using the best practices. This article will try to explain the disadvantages of writing code without using Best Practices and later on how best practices can be implemented in our database code. Code written… Read More »

RIGHT() function in SQL Server

By | January 26, 2015

SQL Server – RIGHT () function Right():- This function returns the specified number of characters from the Right part of the given character string.Syntax:- Select RIGHT ( character_expression , integer_expression ) For example, the below query will return two characters from the last. Select RIGHT(‘Vivek’,2) Result ek

LEFT() function in SQL Server

By | January 26, 2015

LEFT() function in SQL Server Left():- This function returns the specified number of characters from the left part of the given character string. Syntax:-Select LEFT ( character_expression , integer_expression ) For example, the below query will return two characters from the beginning Select LEFT  (‘Vivek’,2) Result Vi

SQL Script to find the missing indexes

By | January 25, 2015

Script to find the missing indexes Performance tuning in SQL is important exercise and index creation is an important part of it. Below script will help in finding the missing indexes. Once you create these indexes, it will help in improving the Performance.SELECT db_name(d.database_id) dbname , object_name(d.object_id) tablename , d.equality_columns , d.inequality_columns , d.included_columns ,’CREATE INDEX [missing_index_’ +… Read More »