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Category Archives: SQL

In most of the queries in the learning process, we usually use to join those tables which have some common columns or relationships between them.… Read More
In SQL Server, a backup, or data backup is a copy of computer data that is created and stored in a different location so that… Read More
MySQL is an open-source relational database management system based on Structured Query Language(SQL). It is a relational database that organizes data into one or more… Read More
In this article let us see how can we check for the validation of mails in the student database using MSSQL as the database server.… Read More
IN operator is a membership operator which returns values that match the values in a list or subquery. Using this operator we can specify multiple… Read More
FETCH is an SQL command used along with ORDER BY clause with an OFFSET(Starting point) to retrieve or fetch selected rows sequentially using a cursor… Read More
In relational databases, we often deal with different tables and perform various operations using this different database software like MYSQL, Oracle, PostgreSQL, etc. Sometimes, while… Read More
SQL stands for Structured Query Language. It is used for storing data in databases, modifying or manipulating data in databases and retrieving data from databases.… Read More
Here we will see, how to convert NUMERIC data to NVARCHAR data in a MS SQL Server’s database table using the CAST(), CONVERT() and FORMAT()… Read More
SQL language is a DML in DBMS. This is used to manipulate databases and the records kept in them. A database is a collection of… Read More
The word NULL is used to describe a missing value in SQL. In a table, a NULL value is a value in a field that… Read More
Web SQL is a web page API for storing or managing the data in databases that can be queried using a variant of SQL like… Read More
Here, we are going to  Get a Financial Year Using a Given Date in SQL. In this article, we will be making use of the… Read More
In SQL, we have databases that contain tables where our data is present. If we want to select some data from this table then we… Read More
In this article, we will discuss the overview of DDL commands and will understand DDL commands like create, alter, truncate, drop. We will cover each… Read More