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Whst is logical schema ?
Logical schema is the entire database.
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
Define Deadlock detection If a system does not employ a few protocols that make sure deadlock freedom, after that a detection and recovery scheme should be used. An algorithm
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 association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
DDL Compiler The DDL compiler changes the data definition statements (such as CREATE TABLE .... in SQL) into a set of tables having metadata tables. These tables have infor
Explain the relevance of Data Dictionary in a Database System? Data dictionary is a database in its own right residing on the disk that consist of Meta data which is = Data abo
Homework chapter 10 no 3
Explain the Role of a database administrator a. Defining the Schema The DBA describes the schema which consists of the structure of the data in the application. The DBA
explaination
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
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