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List the types of authorization.
A) Read authorization
B) Write authorization
C) Update authorization
D) Drop authorization
what do you mean by consistency in rdbms?
Primary Key The primary key is the candidate key that is selected by the database designer as the principal denotes of identifying entities within an entity set. The left candi
What is called mirroring? The simplest approach to introducing redundancy is to duplicate each disk. This method is called mirroring or shadowing.
Explain data dictonary on oracle ? Data Dictionary - Data dictionaries are the system tables in which contain descriptions of the database objects and how they are structured.
Explain the Cascadeless Schedule A cascadeless schedule is one in which for every pair of transactions Ti and Tj like that Tj reads a data item before written by Ti, the commit
Which data type can store unstructured data? Raw data type can store unstructured data.
Key to represent relationship amongs tables is called ? A Key that represent the relationship between tables is called Foreign Key.
Define Signal. It allows methods to respond to events triggered by themselves or by other processes. Each signal corresponds to an exacting event. A signal is represented in Sy
Replication : It is definite as a copy of a relation. Every replica is stored at a dissimilar site. The alternative to replication is to store only single copy of a relation which
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
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