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List the table modification commands in SQL?
A) Deletion
B) Updates
C) Insertion
D) Update of a view
Question: (a) List four disadvantages of the File Processing System as compared to the Database Systems. (b) The integrity of a database is enforced by integrity rules. One
Explain about primary key Primary Key: It is one of the candidate keys that are taken to be the recognizing key for the entire table. E.g. although there are two candidate ke
Explain the steps for reduction of E-R model into relational model. Ans:(a) Entity set in E-R model will be considered as table name in relational Model. (b) Attributes of e
define anomalies and different types of anomalies with example
Is it mandatory to declare all the tables in Report by the key word tables for all the tables that exist in the structure of LDB, and are being explained in the Database part of LD
wrie a report on whether a BSc n information systems develops the skills required by employers in Database administration
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
What are the various symbols used to draw an E-R diagram (any 3)?
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
Association as a cache This association must be updated when any new element is added to it, but testing for overlap using association is more efficient. Figure:
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