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What is transaction?
Collections of operations that form a single logical unit of work are known as transactions.
Consider the 1ollowin8 relation: CAR SALE (Car_id, Option_type, Option_listprice, Sale_date, Option_discountedprice) This relation refers to options installed in cars (e.g., crui
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
how to prepare a data dictionary for online examination system for certified courses?
What is DML (Data Manipulation Language)? This language that enable user to access or manipulate data as organised by appropriate data model. Procedural DML or Low level: DM
What is the difference between SQL Server 2000 clustered and nonclustered indexes? With a clustered index, the data are kept in the bottom level of the index and in the similar
What are the various forms of data transparency? a) fragmentation transparency b) replication transparency c) location transparency
What is Multivalued Attribute? Multivalued Attribute - Multivalued attribute might have more than one value for an entity. For instance, PreviousDegrees of a STUDENT.
how draw er diagram
In which format database schema is written ? Data base schema is written in the DDL format.
What is the role of a database administrator?
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