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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) Data Manipulation language (DML): DML is employed to express database queries and update. For example: SELECT, UPDATE, DELETE statements, etc.
please describe the data base management with the easy example &give the application?
List and explain the memory constructs of the Oracle 12c databases?
Define blocks? The database system resides eternally on non-volatile storage, and is into fixed-length storage units known as blocks.
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
explain ER Modeling?
non numeric literals
Hierarchical
List the SQL domain Types? SQL supports the following domain types. 1) Char(n) 2) varchar(n) 3) int 4) numeric(p,d) 5) float(n) 6) date.
Strong entity set and weak entity set? Strong entity set and weak entity set: A strong entity set has a primary key. All tuples in the set are distinguishable through that key.
In the first unit of this block, you have been given with the details of the Database Management System, its structure, advantages etc. This unit is an attempt to give you informat
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