Alter Command In SQL | Truncate Table In SQL
SQL provides us with the flexibility to modify and delete a table after it’s creation. We have data that needs to be put in the table and, at the same time, data that is...
SQL Tutorials
SQL Server Transaction – Properties, Control, Example
We are aware of various aspects and uses of SQL from our previous tutorials. In this tutorial, we will discuss transactions. We will dive deep into what are transactions in SQL and the usage....
SQL Index – Example | Create, Unique, Composite Index
Data stored in the tables within the database is quite large in quantity. Practically, searching and retrieving such vast data records creates speed constraints. To simplify the searching and retrieving of data, we use...
NULL Values In SQL | SQL UNION Clause
We often require to combine the large volumes of data available to us in order to deal with day-to-day analysis and problems. Most of the time we have data spread in multiple tables. To...
SQL Constraint Types, Syntax and Examples
We have large collections of data in our databases, and to maintain the correctness of the data, we require logical checks on the data. In SQL, we have constraints as the logical checks for...
SQL Join – Inner, Left, Right & Full Joins
We have large units of data stored in our database, consisting of thousands of tables. When we need to look into a specific set of data satisfying various conditions, we face problems while combining...
Distinct Keyword in SQL | SQL Select Distinct
SQL, which goes by the full form Structured Query Language, is a programming and a query language used to transact and query a database. We will discuss the DISTINCT keyword this time. We use...
SQL Create Database | SQL Drop & Select Database
SQL(Structured Query Language) is used for managing the relational DBMS. SQL provides us many functionalities using queries and commands like Create, Drop, and Select database query. We have various types of queries available to...
SQL Expressions with Syntax and Examples
We have seen that getting correct data from the database could be problematic sometimes. To avoid and overcome these problems, we prefer to use SQL Expressions. Expressions are like formulas written within SQL queries....
SQL Data Types | Data Types in SQL Server
In this tutorial, we will learn about the data types available in SQL. Let us dive deep into the data types. What are the Data types and their Needs? We have a huge volume...
