Author: S J

The SQL DROP TABLE statement is used to remove a table definition and all the data, indexes, triggers, constraints and permission specifications for that table. NOTE − You should be very careful while…

Creating a basic table involves naming the table and defining its columns and each column's data type. The SQL CREATE TABLE statement is used to create a new table. Syntax The basic…

When you have multiple databases in your SQL Schema, then before starting your operation, you would need to select a database where all the operations would be performed. The SQL USE statement…

The SQL DROP DATABASE statement is used to drop an existing database in SQL schema. Syntax The basic syntax of DROP DATABASE statement is as follows − DROP DATABASE DatabaseName; Always the…

The SQL CREATE DATABASE statement is used to create a new SQL database. Syntax The basic syntax of this CREATE DATABASE statement is as follows − CREATE DATABASE DatabaseName; Always the database…

An expression is a combination of one or more values, operators and SQL functions that evaluate to a value. These SQL EXPRESSIONs are like formulae and they are written in…

What is an Operator in SQL? An operator is a reserved word or a character used primarily in an SQL statement's WHERE clause to perform operation(s), such as comparisons and…

SQL Data Type is an attribute that specifies the type of data of any object. Each column, variable and expression has a related data type in SQL. You can use…

SQL is followed by a unique set of rules and guidelines called Syntax. This tutorial gives you a quick start with SQL by listing all the basic SQL Syntax. All…

There are many popular RDBMS available to work with. This tutorial gives a brief overview of some of the most popular RDBMS’s. This would help you to compare their basic…