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A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
A View may be defined of as a virtual table, that is, a table that does not really exist in its own right but is instead inferred from one or more underlying base data table. T
how many types of data model in DBMS? explain data abstraction with its different level
What is it ?
Object-oriented decompositions Object-oriented decompositions of systems better are able to cope with change. Each subsystem has a well-defined interface which communicates with
Convert the following ER - diagram (Entity Relationship Diagram) into a relational database (the primary keys are underlined): 2160_Convert the following ER - diagram into a
Three way to handle missing field val
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
What is Alternate Key Alternate Key: This is the candidate key which is not taken as the primary key of the table. They are named so because although not the primary key, the
What are the parts of SQL language? The SQL language has various parts: data - definitition language Data manipulation language View definition Transaction contr
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