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Describe Object Relational model ? Object Relational Model - This model combines the characteristics of both relational model and object oriented model. It extends the tradit
Types of Locks There are two necessary types of locks: Binary lock : This locking mechanism has two states for to a data item: locked or unlocked Multiple-mode loc
Define database management system? Database management system (DBMS) is a set of interrelated data and a combination of programs to access those data.
Describe the tools that are available for managing MySQL Server. Given below are the tools to manage MySQL server: mysqld - MySQL server daemon. This is used to begain t
What is database utility? Database utility is the interface among the ABAP/4 Dictionary and the underlying the SAP system.
To do the division operation R1 ÷ R2, R2 should be a correct subset of R1. In the following example R1 have attributes A and B and R2 have only attribute B so R2 is a correct subse
tell me the functionality,advantages and disadvantages of student database
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
how to implement mid square hashing?
What is meant by computing the closure of a set of functional dependency? The closure of F denoted by F + is the set of functional dependencies logically implied by F.
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