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Hi I have got an assignment for making an er diagram for market management software can any budy help me?
What is an ERD?
About Attribute inheritance
How many physical thing?
Concatenation operator Example : Printing name and job as one string as column name employees: SELECT ENAME||JOB "EMPLOYEES" FROM EMP;
Given the following relations Vehicle (Reg_no, make, colour) Person(eno, name, address) Owner(eno, reg_no) Write expressions in the relational algebra to answer the following
Which method of access uses key transformation? A Hash method of access uses key transformation.
Why a report generator is used ? Report generator is used for print files on paper.
Which database level is closest to the users? External database level is closest to the users.
under what condition log based recovery is feasible?
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