Sql Interview Question and Answers

116. What are the different types of cursors?
 
    Types of cursors :
  • Static
  • Dynamic
  • Forward-only
  • Keyset-driven
 
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117. What is a Catalog?
  A catalog is a table that contain the information such as structure of each file ,the type and storage format of each data item and various constraints on the data .The information stored in the catalog is called Metadata . Whenever a request is made to access a particular data, the DBMS s/w refers to the catalog to determine the structure of the file.
 
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118. What is a view?
  A view may be a subset of the database or it may contain virtual data that is derived from the database files but is not explicitly stored.
 
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119. What are different types of end users?
 
  • Casual end-users
  • Casual end-users
  • Sophisticated end users
  • Stand alone users
 
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120. Compare DBMS versus object oriented DBMS?
  DBMS consists of a collection of interrelated data and a set of programs to access that data.
The object oriented DBMS is one of the type of dbms in which information is stored in the form of objects.
 
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