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Explain I command in QBE ?
I : It is the command in QBE that is used to insert tuple (s) into the database
While sorting field groups we cannot use more than one key field False.
Explain What is Relation? A database relation is a predefined row or column format for storing information in a relational database. Relations are equal to tables.
external and internal mapping with examples
explain participation constraints with examples
With the help of a diagram defines the typical element modules of a DBMS? The functional elements of a database system can be widely divided into: 1) Storage manager and 2) q
What is RDBMS terminology for a row? A tuple is a RDBMS terminology for a row
What is OMR? OMR (Optical Mark Recognition) is the translation of marks - or the absence of marks - but not the shape of the mark on forms that have small circles ("also called
1. Which relational algebra operations do not need the participating tables to be union-compatible? Ans: Join is the relational algebra operations that do not need the particip
Using SQL create a view RS for the relations R and S. The view consists of the columns A and D renamed as X and Y in that order. Insert a tuple into it. Show the contents of t
What are called multilevel indices? Indices with two or more levels are known as multilevel indices.
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