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What is catalog in DBMS?
Catalog - A relational DBMS maintains information about every table and index in which it contains. A catalog is a collection of special tables that stores the descriptive information of each table and index.
Differentiate OO development from structured development. Structured approach of problem solving is based upon the idea of decomposition of system into subsystem. In this appro
What is Identity? Identity (or AutoNumber) is a column that automatically produces numeric values. A start and increment value can be set, but most DBA leave these at 1. A GUID
note on hashing technique
What is the difference among a primary index and a secondary index? Primary Index: A primary index is an ordered file whose records are of fixed length along with two fields.
write short note on mobile database
Consider the relations: PROJECT(proj#,proj_name,chief_architect) EMPLOYEE(emp#,emp_name) ASSIGNED(proj#,emp#) Use relational algebra to express the subsequent queries: (i) Get
Wait-die" scheme : The idea is based on non-preventive method. It is based on a simple rule: If Ti requests a database resource that is held by T
You are to write a property management database program that allows a real estate agent to view, add, search, and save property listings. The program is to do the following: 1.
Problem : (b) A deductive database system is essentially the outcome of applying mathematics logic to database management, where logic is used for both data representation and
Submit SQL INSERT Statements that will populate the database with sample data. You must insert at least 5 records into each table in your database.Submit your SQL INSERT Statement
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