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Database Administrator One of the main perpose for having the database management system is to have control of both data or programs accessing that data. The person having li
Question 1: (a) Planning and management of ICT projects have a very poor record in developing countries. Briefly explain five critical success factors for correct implementa
What is OCR? OCR (Optical Character Recognition) is a technology that enables you to change different types of machine-readable documents, like scanned paper documents, PDF fil
Describe integrity and security? a) Domain constraint b) Referential integrity A value that appears in one relation for a given set of attributes also appear fo
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
The Maximum no of key fields that can be used in a header is?? 50
A well-maintained relational DBMS has a high level of data integrity. What features of a relational DBMS contribute towards this level of integrity? Relational DBMS gives high
Explain the Strategy of Database Planning ?
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
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