Sql select employee from table with at least one department, Database Management System

Assignment Help:

Consider employee (e_no, e_name, e_salary, d_code), dept
(d_code, d_name) and dependent (depndt_name, e_no, relation).
Show the names of employees in purchase and accounts departments with at least one dependent.

SELECT e_name FROM employee, dependent, dept
WHERE employee.d_code=dept.d_code
AND employee.e_no=dependant.e_no
AND d_name IN (‘ACCOUNTS', ‘PURCHASE')
GROUP BY e_name
HAVING COUNT (e_no)>=1

Related Discussions:- Sql select employee from table with at least one department

Single valued normalisation, Single Valued Normalisation Codd in the y...

Single Valued Normalisation Codd in the year 1972 formed three normal forms (1NF, 2NF, and 3NF). These were based on functional dependencies between the attributes of a relati

Relational database design, how to find entities

how to find entities

Single-valued dependencies, Single-Valued Dependencies A database is a ...

Single-Valued Dependencies A database is a collection of related information and it is therefore inevitable that some items of information in the database would depend on some

Concept of foreign key, Fundamentals of Database Management 1. Explai...

Fundamentals of Database Management 1. Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? 2. With a necess

Determine the steps of path in association network, Determine the steps of ...

Determine the steps of path in association network You can analyse use of paths in association network in the following steps: Examine every operation and see what asso

Relationship sets, A relationship set is a set of relationships of the simi...

A relationship set is a set of relationships of the similar type. For example, let consider the relationship among two entities sets course and student. Collection of all the in

E-R, Mention various steps required to draw an E-R Diagram. Draw an E-R Dia...

Mention various steps required to draw an E-R Diagram. Draw an E-R Diagram for Student Information System. Mention all suitable assumptions to justify your answer.

Fragmentation, let us consider a table having 2200 records and the fixed si...

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

Explain physical and logical independence, Define Physical and Logical inde...

Define Physical and Logical independence Ans: Physical data independence: The ability to modify physical level without causing application program to be rewritten. Logic

What are advantages of using an index and disadvantages, What are the advan...

What are the advantages of by using an index and what are its disadvantages ? In difference, if the search key of a secondary index is not a candidate key, it is not sufficient

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages