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What is transaction?
Collections of operations that form a single logical unit of work are known as transactions.
Draw an ER diagram that shows the organization of a simple student database. The database captures the information about letter grades obtained by university students who enrolled
Explain about primary key Primary Key: It is one of the candidate keys that are taken to be the recognizing key for the entire table. E.g. although there are two candidate ke
what is union compatable?
why we fregment at all?
The clause in SQL which specifies that the query result should be sorted in ascending or descending order based upon the values of one or much more columns is Ans : Order by
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
What is transaction? Collections of operations that form a single logical unit of work are known as transactions.
4. Describe three ways to handle missing field values
i need help with creating database system for a library
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
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