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Explain ODBC?
ODBC - Open DataBase Connectivity (ODBC) enable the integration of SQL along with a general-reasons programming language.
State the meaning of Object Representation The term object representation means "to represent object with the help of objects model symbols". Implementing objects is too simp
Give some encryption techniques? A) DES B) AES C) Public key encryption
Q. Explain the terms key constraints participation constraints and mapping caradinalities in ER model. Participation Constraints : The participation of an entity set E i
Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo
For Colorado customers calculate the number of single products ordered. If a product is purchased on multiple orders, it should be counted only single time. The result should conta
Explain Dynamic Two-Phase Locking Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on
ER diagram on cosmetics
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
A set of possible data values is called? A set of possible data values is called as domain.
Describe log based recovery The most usably structure for recording data base modification is the LOG the log is a sequence of log records recording all the update activities i
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