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How can you map NULL values to other values while display?
IF( ) , IFNULL( ) keywords are used to do so. They are 'LIMIT' is used for the following kinds of problems:
1) Answering questions about first or last and largest or smallest
2) Splitting a result set into sections so that you can method it one piece at a period.
Why, generally does an object-oriented system use the relational DBMS? The reasons for using relational DBMS for OO systems could be any combination of following: a. Many or
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
Design a gennalization and specialization hierarchy for an automobile sales company
Question: (a) What are the challenges in the development of Large Scale Distributed Real Systems? (b) What is backward engineering and forward engineering in a design packa
a. Define the term "deadlock". There are four conditions that must hold before deadlock is possible. Name them. b. Outline an algorithm that detects whether there is a deadlock.
which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
need to get answer for questions 3&4 on this page in part 1
Define the terms entity, attribute, role and relationship between the entities, giving examples for each of them. Ans: Entity: An entity is a "thing" or "object" in th
What is Relational DBMS This is our subject of study. A DBMS is relational if the data is organized into relations, that is, tables. In RDBMS, all data are kept in the well-kno
Describe entity referential integrity and integrity. Give an example of each. Entity Integrity Rule - If there is a attribute A of relation R is a prime attribute of R then A
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