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what are the purposes of dbms in details
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Write short note on Events Events consist of inputs, interrupts, decisions and actions performed by any external device or users. Every event always has a sender and receiver.
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
Serialisability: Any schedule that makes the similar results as a serial schedule is known as a serialisable schedule. But how can a schedule are determined to be serialisable or n
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
Special comparison operator used in where Clause a. between. ...and...It gives range among two values (inclusive) Example: SELECT ENAME, SAL FROM EMP WHERE SAL BETWE
Define Database layer? The database layer defines the data formats used in the database.
what is specialization?
How to use Oracle
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