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What is transaction?
Collections of operations that form a single logical unit of work are known as transactions.
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
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
using the invoice table shown below,write the relational schema,draw a dependencies,inclunding all partial and transitive dependencies.assume that the table does not contain repeat
#what is cursor its uses ? Explain it
Have database built but having problems with some questions that go with the database
Convert the following ER - diagram (Entity Relationship Diagram) into a relational database (the primary keys are underlined): Ans: The relational database schema f
WHAT IS SQL
What are the costs to be considered when a transaction has to be rolled back when recovering from deadlock? Ans: A few transaction will must rolled back (made a victim)
Discuss the count function? The COUNT function used returns the number of tuples or values fixed in a query. The count function comprises two types of syntax: (1) COUNT (*)
WHAT IS DBMS
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