What is a data dictionary, Database Management System

What is a data dictionary? 

A data dictionary is a data structure which keeps Meta data about the structure of the database i.e.  the schema of the database. 

 

Posted Date: 7/27/2013 6:41:09 AM | Location : United States







Related Discussions:- What is a data dictionary, Assignment Help, Ask Question on What is a data dictionary, Get Answer, Expert's Help, What is a data dictionary Discussions

Write discussion on What is a data dictionary
Your posts are moderated
Related Questions
Question: This question refers to the database schema. a) Express the following queries in SQL: (i) Write the SQL code that will create the table Company. Your answer sh

What is assertion? Mention the forms available. An assertion is a predicate expressing a condition that we wish the database always to satisfy. Domain integrity constraints.

Process of implementing system design in dynamic models There are three essential approaches to implementing system design in dynamic models. These approaches are as below:

What are the reasons of bucket overflow? Explain any two methods for solving this problem. Ans:  It is general for file structures to be divided into equal-length partitions, k

Determine object representation As a designer, we must choose properly that when to use primitive types in representing objects and when to combine groups of related objects,

WHY SHOULD NULL IN A RELATION BE AVOID AS possible?

State the data flow diagram of functional model Any action initiated by transition in the state diagram can be extended into an entire data flow diagram in functional model. Th

Consider the subsequent relations for a database which keeps track of business trips of salespersons in a sales office: SALESPERSON (SSN, Name, start_year, Dept_no) TRIP (SSN, Fr

What is magnetic disks?explain it? Magnetic disk provides the bulk of secondary storage of modern computer system. The disk capacity is growing at over 50% per year. But the st

What are the advantages and disadvantages of using a database system. Sol. Advantages of Database System (DBMS) :  (1) Data Redundancy and Inconsistency: Since differen