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What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
Let us now talk about the relational operations: SELECT The select operation is used to select few specific record from the database based on different criteria, This is a un
How does Tuple-oriented relational calculus vary from domain-oriented relational calculus? The tuple-oriented calculus uses a tuple variables i.e., variable whose only allowed
Decompose the table with the following description and functional dependencies into a set of equivalent tables normalized to 3NF or BCNF. This database stores records from a (ve
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
Question: This Question refers to the database schema given in the Appendix. (a) The integrity of a database is enforced by integrity rules. Discuss what should happen on a
What is the full form of ODBC ? ODBC stands for Open Database Connectivity.
What are the two types of errors? The two types of errors are: a) Logical error b) System error
Saving Derived Attributes to Avoid Re-computation Data that is derived from other data should be stored in the computed form to avoid re-computation. For this, we could define
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