Discretionary Privileges in Access Control:Discretionary Access Control is a mechanism that allows the owner of a resource to control who has access to that resource… Read More
Tag Archives: DBMS-SQL
Prerequisite – DDL, DML, TCL and DCL 1. Data Manipulation Language (DML) : DML is used to manipulate data in the database. For example, insert, update and… Read More
Structured Query Language (SQL) is the language that is used to query Relational Databases. A typical Relational Database consists of tables, where each table has… Read More
In this article, we will be discussing about schema and how to create, alter and drop the schema. 1. Create schema : A schema is… Read More
1. What are Assertions? When a constraint involves 2 (or) more tables, the table constraint mechanism is sometimes hard and results may not come as expected.… Read More
In this article, where clause will be discussed alongside example. Introduction : To extract the data at times, we need a particular conditions to satisfy.… Read More
RDBMS stands for Relational Database Management System and it implements SQL. In the real-world scenario, people use the Relational Database Management System to collect information… Read More
In this article, we will be discussing about distinct clause in MS SQL Server. Introduction : A table has a maximum of 1000 rows constituted.… Read More
A Stored Procedure is a type of code in SQL that can be stored for later use and can be used many times. So, whenever… Read More
Data is a collection of facts and figures and we have humungous data available to the users via the internet and other sources. To manipulate… Read More
1. ALTER Command: ALTER SQL command is a DDL (Data Definition Language) statement. ALTER is used to update the structure of the table in the… Read More
Flashback Query allows users to see the view of past data, If in case some data or table is being deleted by the user, then… Read More
1. Structured Query Language (SQL): SQL is a domain-specific language used in programming and designed for managing data held in a relational database management system… Read More
Consider the following tables in Film Database: ARTIST (Art_id, Art_Name, Art_Gender) PRODUCER (Prod_id, Prod_Name, Prod_Phone) FILMS (Film_id, Film_Title, Film_Year, Film_Lang, Prod_id) CASTING (Art_id, Film_id, Part)… Read More
Sometimes while creating a table we do not have unique identifier within the table hence we face difficulty in choosing Primary Key. so as to… Read More
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