I have already made a post on SQL SERVER – UDF – Remove Duplicate Chars From String where I showed you a method of removing duplicate characters form alphanumeric string. The UDF uses WHILE LOOP to extract the numbers.
SQL SERVER – How to Find UNIQUE Key Columns? – sp_special_columns
Unique key on a column is used to identify a particular row easily. It is created either by explicitly mentioning it either part of the definition or when defined as Primary key (By default it is unique and not null). Let us learn about special stored procedure sp_special_columns customers today.
SQL SERVER – System Procedure to List Out Table From Linked Server
There is a system procedure named sp_tables which is used to list out the tables available in the CURRENT database of the CURRENT server. But did you know that there exists another system stored procedure that can be used to list out the tables of database available in the linked server?
SQL SERVER – How to Get Updated Link for Code and Database Samples?
Some emails, indeed triggers blog posts such as the one I received the other day about database samples.
SQL SERVER – Different Methods to Know COMPATIBILITY LEVEL of a Database
COMPATIBILITY LEVEL in SQL Server indicates the version of SQL Server with which the database is to be made compatible. Whenever you create a new database, compatibility level is set to that database. Sometimes you may need to change this so that some code will work.
SQL SERVER – Alternative to DBCC INPUTBUFFER – sys.dm_exec_input_buffer
DBCC INPUTBUFFER has been one of the most popular commands to display the last statement sent from a client to an instance of Microsoft SQL Server. We all have been using it for quite a while. However, this DBCC command showed very little information and DBA always wanted to see more details. In SQL Server 2016 we have a new Dynamic Management Function (DMV) sys.dm_exec_input_buffer which provides many additional details as well.
SQL SERVER – How to Rename Extention of MDF File? – A Simple Tutorial
The other day while working with a customer during SQL Server Performance Tuning Practical Workshop, I noticed an MDF file with very strange extensions. When I asked the DBA why they have such a large data file with extension PDF (instead of common MDF file extension), he replied that honestly they have no idea who to rename a data file extension. They had once tried earlier, but that has sent their database into recovery and they had to revert that back immediately.