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What is Cross Product?
Simply Cross product is Binary Operator
Describe the algorithm to draw the dependency graph? Ans: Algorithm to draw Precedence Graph is like this: a. For every transaction T i participating in schedule S, make
What is a trigger
Creating views with Replace option : This option is used to alter the definition of the view without recreating and dropping it or regranting object privileges previously granted o
WHAT IS DBMS
Give the levels of data abstraction? There are three levels of Data Abstraction a) Physical level b) logical level c) view level
Why is need for the multiple access paths?
In the architecture of a database system which external level used? In the architecture of a database system view external level used.
What Count function return in SQL? Count function within SQL returns the number of values. (Count function counts all the not null values in the exact column. If we need to cou
You group has been hired by TrainingrUs.com to keeps track of training revenues. TrainingrUS.com wants you to keep scheduling. COURSE table contains following information:
List and also explain the dissimilar stages of DDLC ?
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