What is Serializability in DBMS? A database may be inconsistent if multiple transactions are running concurrently. Serializability helps to ensure that the data is consistent at all times and the serial schedules are in order. A serial schedule achieves this as a new transaction will start after ...
In order to find non-serial schedules, the serializability of schedules is checked to ensure the transactions can run concurrently without being interfered with. When the executions of the transactions have interleaving of their operations, it indicates which schedules are correct. ...
With this protocol, a time stamp is determined for each transaction based on the timestamp of the validation phase, since it is the validation phase that determines whether or not the transaction will commit.Discuss this Question 15. During ___, the serializability of a data set is determined...
Data abstraction in DBMS, three levels of it Indexing in DBMS What is DDL (Data Definition Language) What is DML (Data Manipulation Language) What is normalization ? Types of them .. What is denormalization ? What is a functional dependency ? E-R Model ? Conflict Serializability in DBMS ....
In this approach each database object is assigned a security class and each user is assigned a clearance for a security class, and rules are imposed on reading and writing of database objects by users. The DBMS determines whether a given user can read or write a given object based on ...