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management information system based on functional organisation
What type of view of total database content? Data base content Conceptual view of total database contain.
A relation instance indicates as r is a collection of tuples for a given relational schema at a exact point of time. A relation state r of the relation schema R (A 1 ,A 2 ,.....
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
Create Student DB and execute Insert query? STUDENT (name, student#, class, major) COURSE (course name, course#, credit hours, department) SECTION (section identifier, course
What does data dictionary is a special file contains ? The data dictionary is a special file contain The name of all fields in all files.The width of all fields in all files an
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
Load sample data into the database tables design and test queries to return the following information • All rows and columns for employees • All rows and columns for customers •
#question. acompani datdbase needs to store information about employees (identified by a social security number,with salary and phone as attributes) and departments (identified by
What is Trigger? A trigger is a SQL procedure that initiates an action when an event (INSERT, DELETE or UPDATE) occurs. Triggers are kept in and managed by the DBMS. Triggers a
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