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What is NULL?
Simply NULL means not in value.
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What is Normalization? Database normalization is a data design and organization method applied to data structures based on rules that help building relational databases. In rel
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
Prepare a data flow diagram for computing the volume and surface area of a cylinder. Inputs are the height and radius of the cylinder. Outputs are the volume and surface area of th
Describe Data Manipulation language ? Data Manipulation Language (DML) - A data manipulation language is a language which enables users to access or manipulate data as organize
Write a program within embedded SQL to associative the total trip expenses of the salesman named ‘John' for the relations. EXEC SQL BEGIN DECLARE SECTION; long total_expenses;
A table joined with itself is called ? A table joined with itself is known as self join table. Normal 0 false false false EN-IN X-NONE X-NONE
How to draw an ER diagram to a finance companz
let us consider a table having 2200 records and the fixed size of the table to be considered as 25.then how many numbers of table is requredto perform horizontal fragmentation
The aims of the project are: 1. To enable the students to undertake the detailed design of a specific plant or process 2. The design projects includes: process selection; und
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