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Minimum no of table for this ER diagram

 

in Databases
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1
3?
0
yes but how you  conclude it is 1 to 1 relationship ?
1
( <- , ->)  this represnt 1:1 relationship according to many sources.
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will you please mention the tables
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@adarsh_1997 thanks

 it will be more helpful  if you told me these arrow for many to one ,many to many etc  means arrow used for those

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@adarsh_1997  what will be the tables ? like E1R , E3R2 , E2

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3 tables , since no m:n relationship or multivalued attributes.

1 Answer

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Can we do so using only one table coz no entry left with null and 1 will be the minimum table..?

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