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Data Control The data control mostly refers to commands that permit system and data privileges to be passed to several users. These commands are usually available to database administrator. Let us see some data control language commands:
Name the various privileges in SQL? A) Delete B) Select C) Insert D) Update
Write a query that display ename annual salary and comm from emp table
Prepare a data flow diagram for computing the volume and surface area of a cylinder. Inputs are the height and radius of the cylinder. Outputs are the volume and surface area of th
What are the requirements to ensure the objectives of file management principle is realized?
Improved Reliability: In a centralised DBMS, a server failure stops the operations of the DBMS. Though, a failure at single site of a DDBMS, or a failure of a communication link cr
1. Determine that the Checkpoints are a part of Ans: Checkpoints are a part of Recovery measures
What is a database graph? The partial ordering implies that the set D may now be viewed as a directed acyclic graph, known as a database graph.
Conflicting Operations in Schedule: The three simple ways of interleaved instruction implement of transactions T1 and T2. Please note that in the following tables the first col
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
Components of database manager The above functions are reached by the database manager. The major elements of a database manager are: Authorisation control: This mod
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