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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
Removing a Synonym: DROP SYNONYM D30;
usecase diagram,activity diagraM,SEQUENCE DIAGRAM
What is object containment? References among objects can be used to model dissimilar real-world concepts.
Explain trigger? Trigger: A database trigger is procedural code which is automatically executed within response to certain events on a particular table in a database. Trigger
Differentiate between horizontal & mixed horizontal fragmentation?
What are called multilevel indices? Indices with two or more levels are known as multilevel indices.
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
Determine the method of Choosing Algorithms In general, most of operations are easy and have a satisfactory algorithm since description of what is to be done also shows how i
Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal
what is bogus empowerment. And what is genuine empowerment
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