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Shubham Kumar Gupta asked Jan 19, 2018
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MadeEasy Test Series: Databases - Er Diagram
In the solution they have merged E1 R4 E4 , E2 R3 E3 R5 , R6 E5. MY DOUBT IS , why cant we only merge R4 E4 instead of E1 R4 E4. since there is total participation on the E4 side of the relation and it would also decrease the number of attributes .
In the solution they have merged E1 R4 E4 , E2 R3 E3 R5 , R6 E5.MY DOUBT IS , why cant we only merge R4 E4 instead of E1 R4 E4. since there is total participation on the ...
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Ashish Sharma 3 asked Nov 24, 2017
2,670 views
Minimum relations required for ER diagram
How many minimum relations required for the above ER diagram? According to me it should be 7. Please let me know the answer according to you.
How many minimum relations required for the above ER diagram?According to me it should be 7. Please let me know the answer according to you.
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