Can a multivalued attribute be a primary key

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August undefined, 2024

WebIf the entity has multiple key attributes, you will need to decide which one makes most sense as a primary key. Simpler primary keys are usually preferred over more complex ones. If desired, you can constrain the columns resulting from other keys to be not null and unique similar to primary key columns. WebSep 18, 2012 · It is possible to have a Composite attribute as a Primary key but Multivalued attribute cannot be taken as a Primary key. Because Multivalued Attribute is taken as an abnormality and it is resolved by making another entity of that attribute. Share Improve this answer Follow answered Dec 27, 2015 at 9:15 Yasir Janjua 23 7 Add a …

How do I create a multivalued attribute in SQL? (2024)

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database - Multivalued key in erd? - Stack Overflow

WebA multivalued attribute of an entity is an attribute that can have more than one value associated with the key of the entity. For example, a large company could have many divisions, some of them possibly in different cities. WebA multivalued attribute of an entity is an attribute that can have more than one value associated with the key of the entity. For example, a large company could have many … WebFishers finery 25 mm silk satin.. Just bought will report back if it falls apart ... but PLEASE TRY EUCALYPTUS PILLOW CASES. I have a few from sheets and giggles and they are simply the best fabric I've put my face on. PS: I have some sheets and giggles discount code, if interested. flyff thailand

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Can a multivalued attribute be a primary key

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WebImprove your hair, skin & sleep. 30mm 100% Pure Mulberry Silk Pillowcase with Gift Box- 30 Momme - Good Housekeeping Quality TestedButton Add your column text h - / … WebOct 23, 2013 · I'm trying to decide on primary key choice for a multivalued attribute and have a quick question: Customer (cid, name, address, town, post code, email) …

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WebHow a multivalued attribute can be solved in a relational mapping? – For each multivalued attribute A, create a new relation R. – This relation R will include an attribute corresponding to A, plus the primary key attribute K-as a foreign key in R-of the relation that represents the entity type of relationship type that has A as an attribute. WebOct 1, 2024 · The Fishers Finery 100% Pure Mulberry Silk Pillow Case is the best silk pillow case on the market, according to the Good …

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