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A file manipulation command that extracts some of the records from a file is called ?
A file manipulation command that extracts some of the records from a file is called SELECTcommand.
I need to Map an E-R diagram to a relational schema
What are the Constituents of File? Also elaborates all the possible file operations? A file is organised logically as sequence of record. These records are mapped onto disk blo
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 trigger? Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
Package classes and associations into models Programs are made of separate physical units which could be edited, imported, complied or otherwise manipulated. The careful part
Foreign Keys and NULL Let us take the relation: DEPT DEPT ID DNAME BUDGET D1 M
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
need requirement analysis for database management of stock market
Explain the relevance of Data Dictionary in a Database System? Data dictionary is a database in its own right residing on the disk that consist of Meta data which is = Data abo
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