How to create an unique constraint that allow multiple nulls? Using filtered index you can create unique constraint with multiple nulls. Using this you can store any number for NULL in a unique constraint column
Quick methods to list all foreign keys referencing a table in SQL Server using execution of simple TSQL scripts and SSMS GUI. Ways to identify all the tables referencing a table with foreign key constraint
Adding or inserting Inserting Line Break or Carriage Return or Tab to a string in SQL Server. Quick examples for adding special characters like Line Break, Carriage Return and Tab to strings.
How to do pagination of results in SQL Server In and efficient way? Best way to paginate results in SQL Server to improve performance of the application.
How to get date part alone from DateTime and DateTime2 data types in SQL Server? Here are few of the techniques to get date from DateTime column.
Solution for SQL Server 2014/2012 won’t start on disabling SSL 3.0 and TLS 1.0 protocols. Fix for disabling TLS 1.0 and SSL 3.0 causes SQL Server issues.
What is Azure Data Studio (SQL Operations Studio)? What are the salient features of SQL Ops Studio? Advantages and disadvantages of SQLOPS over SSMS.
Where is SQL Server Configuration Manager? How to find and open Configuration Manager in latest versions of SQL Server? Opening SSCM in MMC.
How to drop table if it exists in SQL Server? How to drop stored procedure if it exists? How to drop function if it exists? Using DROP IF EXISTS.
CONCAT_WS() is a new function introduced in SQL Server 2017. Here is the details on using CONCAT_WS() to concatenating strings with separator.
How to generate row number without using ORDER By clause in SQL Server. Simple technique to override the sequence ordering while using ROW_NUMEBR() function
TRIM() Function In SQL Server 2017 and equivalent custom made TRIM UDF in 2016 and older versions ti trim the spaces at the starting and ending of a string.
Difference between union and union all. Performance comparison of union vs union all and identifying the best one to use and the scenarios to use them.
SSMS for SQL Server 2016 and higher. Installing SQL Server Management Studio Release 15 and higher for SQL Server 2008 or higher.
Similarities, differences usage of char vs varchar. Differences and similarities between char and varchar data types In SQL Server.
Similarities, differences, advantages and disadvantages of nchar vs char. Differences and similarities between char and nchar data types In SQL Server.
Similarities, differences, advantages and disadvantages of nvarchar vs varchar. Differences and similarities between varchar and nvarchar data types In SQL Server.
How to escape single quote in SQL Server? There are several ways to escape single quote. Here are few of the methods to escape quote in a string.
How to move database to emergency mode in SQL Server. For repair and troubleshooting purpose you may need to set the status of database to emergency.
Differences between taking database offline, detaching it and moving it to emergency mode in SQL Server? Offline Vs Detach Vs Emergency in table format.