Managing Data in Databases, Database Management System

Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.

Related Discussions:- Managing Data in Databases

Transaction, what are the states of transaction?

what are the states of transaction?

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What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.

gaps in sequence values can happen when-sequences, Gaps in sequence values...

Gaps in sequence values can happen when: - A rollback happens that is when a statement changes are not accepted. - When the system crashes - When a sequence i

Develop a database design , A practice called Perfect Pets provides private...

A practice called Perfect Pets provides private health care for domestic pets throughout America. This service is provided through various clinics located in the main cities of Ame

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Describe Graphical User Interface? Graphical User Interfaces (GUIs) - A GUI typically displays a schema to the user in diagrammatic form. The user can then specify a query th

DBMS, to develop elrctronic database from manual forms

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Describe the nested-loop join and block-nested loop join, Describe the nest...

Describe the nested-loop join and block-nested loop join. Ans: The block nested- loop join algorithm is as described below: for every block B r of relation R do beg

Using literal character string-data manipulation language, Using Literal Ch...

Using Literal Character String Example: To print IS A as one string with column name employee SELECT ENAME || ' IS A ' || JOB AS "EMPLOYEE" FROM EMP;

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