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What are the three classes of SQL expression?
SQL expression consists of three clauses:
Select
From
Where
What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
what is file organization? what are file organization techniques.explain in detail? explain random file organization technique, multikey file organization technique?what is indexin
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
System error :These contain errors in database system or the OS, example, deadlocks.Such errors are fairly hard to detect and need reprogramming the erroneous components of the sys
Create an entity relationship diagram, Database Management System
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
Briefly describe the different kinds of users of a DBMS. Ans: Different sorts of DBMS users are: (a) Software Engineers: These are the people accountable for developing ap
What are the different kinds of database end users? Discuss the major activities of each? End-Users - End-users are the people whose jobs need access to the database for que
Fundamentals of Database Management 1. Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? 2. With a necess
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
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