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What is NULL? Give an example to described testing for NULL in SQL?
The NULL SQL keyword is used to represent either a missing value or a value which is not applicable in a relational table. Consider there is a relation:
Person(id, name, address, phone)Now to search ids and names of person who do not have a phone is: Select id, name from Person where phone is null
can you create a database for me in oracle/sql
What are composite objects? Objects that have other objects are known as complex objects or composite objects.
In this assignment, you will create a program that works with multiple tables. In this assignment, you will work with the factory and sales tables. 1. Create a new project nam
What is MySQL? MySQL is a relational database management system which has eleven million installations. It can be used for both Linux and Window. Managing database includes add
What are the advantages of DBMS ? 1. Centralized Management and Control - One of the major advantages of using a database system is in which the organization could exert, thr
ADVANCE OBJECT DESIGN Introduction Analysis is the initial step of the OMT methodology. It is apprehensive with devising a precise, concise, correct and understandable mo
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
I want to fragment existing table using java code... help me..!!
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
does tables are called relations
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