Category Archives: SQL

SQL vs NoSQL

As a database is the backbone of any application, choosing between a SQL-based (relational) or NoSQL-based (non-relational) database for a project is one of the most crucial decisions to make. Both are popular database types, offering unique characteristics and having their own pros and cons. Difference Between SQL and NoSQL This article will assist you in understanding the… Read More »

10 Best SQL Books You Need to Read in 2022

Structured Query Language (SQL) is the standard query language for relational databases. Developed by Donald D. Chamberlin and Raymond F. Boyce at IBM, SQL is used to access, retrieve, manipulate, and manage records in relational databases. With databases being the backbone of many businesses and companies, learning SQL will help you pursue a successful career. Through this article,… Read More »

HTML Input Attribute

<input> element has many attributes, and each one has a specific meaning. Here we have covered all the major attributes we use in <input> element. Some of the attributes are optional, and some are mandatory to mention. <input> Attributes Type <input type=””> the type attribute defines the input type for the input block. By default, the type value… Read More »

SQL Transaction

If there is a group of SQL commands performed on a database to manipulate the stored data, then all those commands can be treated as a single unit called a transaction. In simple word, we can say that a transaction is a group of SQL queries, and transaction handles all those queries as a single unit. SQL Transaction… Read More »

SQL Injection

Most of the web-applications use SQL database to manage and organize the data of its users and content. Now, most of the websites are dynamic; they all use some kind of SQL relational database management system to fetch and store data. There are many active threats a website can face, and SQL injection is one of those threats.… Read More »

SQL SEQUENCES

In SQL a Sequence is defined as a Database object which is generally used to generate an integer sequence. In Database tables, Sequences often used to populate the numeric primary key column. However, this can also be done using the AUTO_INCREMENT constraint, but Sequences give more flexibility, and here we can define the integer sequence in a different… Read More »

SQL Sub Queries

In SQL if we write a query inside another query, then it would be considered as a nested, inner query, and subquery. Generally, these subqueries applied using the SQL WHERE clause. SQL Sub Queries Subqueries are basically used to set a condition expression, that’s why the subquery executes before the main query. The data sets returned by the… Read More »

SQL Temporary Tables

Some Relational Database Management Systems(RDBMS), support temporary tables. A Temporary Table is similar to the normal tables present in the Database, like the normal table the temporary table support all the SQL commands, the only difference is the temporary table get deleted as soon as the session of the user or table gets ended. SQL Temporary Tables Temporary… Read More »