Understanding DROP TABLE IF EXISTS SQL Statement
The T SQL DROP TABLE IF EXISTS statement is used to drop existing database objects. In this...
SQL AVG Function: A Complete Guide
In mathematics, the Average value represents the middle value that we calculate by dividing the sum of all values by the number of values....
Provisioning an Oracle Autonomous Database
Let’s assume that you are developing a data warehouse project, and your team needs the appropriate environment immediately and under the...
SQL Server TRIM, LTRIM, and RTRIM Functions
The TRIM function of SQL Server is designed to remove leading and trailing whitespaces from a...
SQL CASE: Know and Avoid 3 Lesser-Known Hassles
SQL CASE? Piece of cake! Really? Not until you bump into 3 troublesome issues that can cause runtime errors and slow performance. If you...
Query Optimization Techniques in SQL Server: 5 Best Practices to Boost Queries Performance
What is query optimization in SQL Server? It’s a big topic. Each technique or problem needs a separate article to cover the bases....
9 Best Practices for Writing SQL Queries
If you are reading this article, most probably, you are already familiar with SQL. You know how to...
SQL FOREIGN KEY CONSTRAINT: The Ultimate, Easy Guide for Newbies
Newbie? Then an SQL foreign key may be foreign to you. You may have heard different opinions about SQL foreign keys. If you haven’t, soon...
3 Methods to Rebuild All Indexes for All Tables with T-SQL in SQL Server Database
There are several methods of how to rebuild all indexes of all tables in SQL Server, among them: Using SQL Server maintenance plans. Using...
SQL Server: Renaming Indexes using the sp_rename Procedure
Not so long ago, I was working on a project where we needed to change the data type of a table. The...
