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List the types of authorization.
A) Read authorization
B) Write authorization
C) Update authorization
D) Drop authorization
I need a professional to prepare a database to collect and store basic information. The information can be basic info such as contact details etc. One requirement i have is f
Create a new user : CREATE USER IDENTIFIED BY Example: //CREATE USER MCA12 IDENTIFIED BY W123 Grant: It is used to give database access permission to users. It is of
Define data model? A data model is a collection of conceptual tools for explaining data, data relationships, data semantics and consistency constraints.
What are the DBMS languages? Explain. Ans: a) Data Definition Languages (DDL): It is employed to specify database schema for example CREATE DROP statements etc. b) Dat
to develop elrctronic database from manual forms
why are older data models are being replaced by new data models
Define entity integrity and referential integrity. How does SQL allow specification of these? Ans: Entity Integrity Rule- If the attribute A of relation R is a prime attribut
er diagtram for icici
Normalize the given relation to 3NF, justifying each step
Define page. The database is partitioned into some number of fixed-length blocks, which are referred to as pages.
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