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Give the general form of SQL query?
Select A1, A2............., An
From R1, R2..............., Rm
Where P
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
the of super market system done in database
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
1. Create the tables for the play-scheme database as specified in the TMA. 2. Enter the data as given in the spreadsheet. 3. Create queries to retrieve specified information
Draw an E_R Model for the following: An organization uses number of items of a equipment to generates goods. Each item is at one LOCATION, of one TYPE and has a DETAILED_DISCRI
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Differentiate between join and outer join? Outer joins return all rows from at least one of the tables or views mentioned within the FROM clause, as long as those rows get toge
What is completeness constraint on generalization? Define the variation between total and partial design constraint. Give an example each. Ans: Completeness Constraints
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