Useful tips for everyday
What are examples of commercial databases? Today, the top commercial databases in web popularity were: Oracle (1), Microsoft SQL Server (3), DB2 (6) and Microsoft…
How is an UPDATE statement used in SQL Server? An UPDATE query is used to change an existing row or rows in the database. UPDATE…
What is NT service Mssqlserver? The NT SERVICE\SQLSERVERAGENT login is how the Windows process that is SQL Server Agent connects to the Database Engine to…
Does NoSQL database interact with Oracle database? Does NoSQL Database Interact With Oracle Database? NoSQL Database supports retrieving records through the Oracle Database External Table…
How to check automatic storage in DB2? How to determine if I have DB2 database with Automatic Storage? Method – A. Method – B C:\>db2pd…
When to use a subquery in a query? A subquery is a query that appears inside another query statement. Subqueries are also referred to as…
Is SQL Server faster than access? Generally ms access runs faster than sql first time. Then after second run for same search criteria sql runs…
What is batch requests SEC? The Batch Requests/sec (in some literature referred as Batch Requests per Second) metric is SQL Server performance that provides information…
Why would you Denormalize a table? Denormalization is a database optimization technique in which we add redundant data to one or more tables. This can…
What does coalesce return if all values are NULL? If all the values in MySQL COALESCE() function are NULL then it returns NULL as the…