Tag: DBMS
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SQLSQL: DELETE Query
What is Delete Query? In SQL, the DELETE Query removes existing records from a table. Depending on the condition specified…
March 22, 2023
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SQLSQL: TCL Commands
What is TCL? Transactional control commands(TCL) can only be used with DML commands like INSERT, UPDATE, and DELETE. They cannot…
March 22, 2023
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SQLDCL Commands: GRANT and REVOKE
What is DCL? Data Control Language is known as DCL in SQL. By creating users and granting or removing privileges…
March 23, 2023
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SQLSQL: WHERE clause
When retrieving data from a single table or by joining data from multiple tables, a condition is specified using the…
March 24, 2023
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SQLSQL: LIKE clause
In SQL to filter data based on a specific pattern, the LIKE clause is used in the WHERE condition. It…
March 25, 2023
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SQLSQL: ORDER BY Clause
What is the ORDER BY Clause? In the SELECT query, the ORDER BY clause can be used to sort the…
March 26, 2023
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SQLSQL: Group By Clause
The SQL Group By statement is used to organize similar data into groups. The data is further organized using an…
March 28, 2023
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SQLSQL: HAVING Clause
The HAVING clause in SQL Server includes one or more conditions that must be TRUE for groups of records. It’s…
March 28, 2023
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SQLSQL: DISTINCT keyword
What is the SQL DISTINCT keyword? The SQL DISTINCT keyword is used in conjunction with the SELECT statement to remove…
March 29, 2023
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SQLSQL: AND & OR operators
The AND and OR operators are used in SQL to filter data and produce precise results based on conditions. Multiple…
March 31, 2023
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SQLSQL Constraints
What are the SQL Constraints? SQL constraints are rules that limit the types of data that can be inserted or…
March 31, 2023
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SQLSQL Functions-I
What are SQL Functions? SQL functions are predefined routines that can be invoked by SQL queries to perform specific operations…
April 3, 2023