What is a Composite Key ?

[Shivangi Panwar]

What is a Composite Key ?

[kunal]

A Composite primary key is a type of candidate key, which represents a set of columns whose values uniquely identify every row in a table.

[indianlawwatch]

Very useful information, thanks for sharing

[RH-Calvin]

In database design, a compound key is a key that consists of two or more simple keys that uniquely identify an entity occurrence. A simple key is one that has only one attribute. Compound keys may be composed of other unique simple keys, but may not include another compound key.

[aramgregor]

A composite key, with regards to social databases, is a blend of two or more sections in a table that can be utilized to exceptionally distinguish every column in the table. Uniqueness is just ensured when the segments are consolidated; when taken exclusively the segments don't promise uniqueness.

[globalcscp]

A composite key consists of more than one attribute to uniquely identify an entity occurrence. This differs from a compound key in that one or more of the attributes, which make up the key, are not simple keys in their own right. For example, you have a database holding your CD collection.

[smt]

Thanks for sharing information.

[technocrab]

A composite key is a combination of more than one column to identify a unique row in a table. It can be either Primary or Unique Key More then One Key columns are said to be composite keys.

[Hirva Fashion]

Acomposite key is a combination of two or more columns in a table that can be used to uniquely identify each row in the table when the columns are combined uniqueness is guaranteed, but when it taken individually it does not guarantee uniqueness.

[technodesign]

In data source design, a substance key is a key that comprises of two or more easy important factors that exclusively recognize a business incident. A easy key is one that has only one feature. Substance important factors may be consists of other exclusive easy important factors, but may not consist of another compound key.

[seo1]

A composite key is a combination of two or more columns in a table that can be used to uniquely identify each row in the table when the columns are combined uniqueness is guaranteed, but when it taken individually it does not guarantee uniqueness.

[Diana Smith]

Composite Key

A composite key consists of more than one attribute to uniquely identify an entity as occurence.

[ELife]

A composite key, in the context of relational databases, is a combination of two or more columns in a table that can be used to uniquely identify each row in the table. Uniqueness is only guaranteed when the columns are combined; when taken individually the columns do not guarantee uniqueness.


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[pankaj86]

composite key is a two or more column combination that can be uniquely identify.

[rickysmith]

A blend key is a mixture of more than one line to recognize a unique row in a table. It can be either Main or Unique Key More then One Key content are said to be blend important factors.