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Having Clause with sub queries: First we have to recollect the GROUP BYclause. The following query searches the minimum salary in every department.
SELECT DEPTNO, MIN (SAL)
FROM.EMP
GROUP BY DEPTNO;
Output:
DEPTNO
SAL
10
2975
20
3000
E-R Model This data model is based on real world that consists of basic objects named entities and of relationship among these objects. Entities are illustrated in a database
What is an entity relationship model? The entity relationship model is a set of basic objects known as entities and relationship between those objects. An entity is a thing or
What are the typical phases of query processing
Determine the language that needs a user to specify the data to be retrieved with no specifying exactly how to get it is Ans: Non-Procedural DML
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Project Description: Hi I'm seeking someone to make my dBase application work. I know it's not a 'modern' language but it's what I know. I have written an order program and I ne
Database Administrator One of the main perpose for having the database management system is to have control of both data or programs accessing that data. The person having li
Economics: It is now usually accepted that it costs less to make a system of smaller computers with the equivalent power of a one large computer. It is more cost-effective to get s
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