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What are the properties in a relation ? In a relation Ordering of rows is immaterial and No two rows are identical.
A database to track your progress in your college program will track your progress towards graduation! A database that has information containing the classes that you have taken, c
Define the term- Actors and Data Stores Actors: An actor is the active object which drives data flow graph by producing or consuming values. Actors are attached to inputs a
Draw entity relationship diagram for the following scenario. A university has many departments whereas each department belongs to that particular uni. That uni has also many bui
how to write tables and drow E-R diagrams for hosiptal management system and how to normalize and cardinalities?
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
We face problem of stock Opening balance and closing balance in Minus
A domain is a set of permissible values that can be given to an attribute. So each attribute in a table has a definite domain. Values to these attributes cannot be assigned outside
Consider the following relational database: STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course#, sem
A well-maintained relational DBMS has a high level of data integrity. What features of a relational DBMS contribute towards this level of integrity? Relational DBMS gives high
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