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Welcome to GATE CSE Doubts, where you can ask questions and receive answers from other members of the community.

Recent questions tagged e-r-diagram

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0 answers 6 views
How to find the number of relations required for a self-referential relationship with all the cardinalities mapped with total and partial participation? Please provide links to the same.
asked May 27 in Databases samir757 29 points 6 views
0 votes
0 answers 42 views
Consider the following E-R Diagram What is the minimum no. of relations required for above E-R Diagram? Can someone tell the answer.
asked Jan 2, 2020 in Databases vishal burnwal 77 points 42 views
0 votes
1 answer 31 views
Consider the following ER Diagram The minimum no of relations required to represent this ER Diagram in relational model _____ Plz some give answer for above question
asked Dec 12, 2019 in Databases vishal burnwal 77 points 31 views
0 votes
0 answers 169 views
Can someone plz give answer and explaination?
asked Nov 24, 2019 in Databases vishal burnwal 77 points 169 views
0 votes
0 answers 46 views
What will be the correct answer for above given ER Diagram?
asked Nov 24, 2019 in Databases vishal burnwal 77 points 46 views
0 votes
1 answer 305 views
Consider the following two ER diagrams -- ER1 and ER2 The statement that the number of entities in entity set P must be greater than or equal to the number of entities in entity set Q holds for (A) ER1 but not ER2 (B) ER2 but not ER1 (C) Both ER1 and ER2 (D) Neither ER1 nor ER2
asked Oct 31, 2019 in Databases KUSHAGRA गुप्ता 1.4k points 305 views
0 votes
0 answers 47 views
In translating from an entity-relationship (E-R) diagram to a relational schema, one piece of E-R logic that cannot be captured by primary keys, uniques, and foreign keys is (A) the weak entity. (B) any ternary relationship. (C) mandatory participation ... valued attributes and weak entity set allowed to represent in ER model but not allowed in RDBMS. This question is regarding something else?)
asked Oct 31, 2019 in Databases KUSHAGRA गुप्ता 1.4k points 47 views
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