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Define Catalog and meta data ?
A catalog is a compilation of records elaborating the contents of a particular collection or group of collections. Metadata (Meta data, or sometimes metainformation) is "data about data", of any sort in any media. An item of metadata might elaborates an individual datum, or content item, or a collection of data involving multiple content items and hierarchical levels, for instance a database schema.
Explain four causes for failures in data warehouse projects
What is DataWarehousing? Subject-oriented, meaning that the data in the database is organized so that all the data elements relating to the similar real-world event or object
how to design tables
Explain the use of constraints in functional model with suitable example. A constraint shows relationship between two objects at same time, or among various values of the sam
Explanation on Data Sharing?
WHAT IS DSS? WRITE ITS REQUIREMENTS.
why three level architecture had been developed/
With the help of a diagram defines the typical element modules of a DBMS? The functional elements of a database system can be widely divided into: 1) Storage manager and 2) q
CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);
What is data block? Data Block - In oracle the data blocks are referred to as tablespaces. A tablespace is an fields of disk consisting of one or more disk files. A tablespace
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