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What is a shadow copy scheme?
It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that single transaction is active at a time. The scheme also supposes that the database is simply a file on disk.
Primary Index In primary index, there is a one-to-one relationship among the entries in the index table and the records in the major table. Primary index can be of two types:
i would like to ask if you will do assignment of database number of words 1500 and how much
Lock Based Protocol A lock is nothing but a mechanism that tells the DBMS whether a particular data item is being used by any transaction for read/write purpose. As there are t
what are information system hirarchy?
define lock conversion
You are working for the ABC Telecom and are given some customer records for data mining. You are asked to discover, from the data, patterns that characterize low-, medium- and high
What is a dataset? A dataset is an in-memory database that is disconnected from any regular database, but has all the significant characteristics of a regular database. Dataset
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
3NF Normal Form A relation schema R is in 3NF if it is in 2NF and for each FD X A either of the following is true X is a Super-key of R. A is a prime attribute of R
Task Partitioning, Sequencing and Project Planning The tasks required for the service might be broadly partitioned into: 0. Set up database tables and account file
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