It is a column or group of columns in a table that uniquely recognizes/identifies every row in that table.Ĭandidate Key is a set of attributes that uniquely identify tuples (Row) in a table. Database key is very helpful for finding unique records or rows from the table. Furthermore, Key is also helpful for finding unique records or rows from the table.
Keys help or assist you in uniquely identifying a row in a table by a combination of one or more columns in that table. They permit you to find the relation between two tables. KEYS in DBMS is a set of attributes or attributes that help you to identify a row(tuple) in a relation. it is depending on the types of the DBMS Keys used) from any table in the Database system that brings about to distinctively categorize a row or a combination of more than one column, to recognize or identify the relationship between the tuple (row) in the table, or to determine the relationship between the two tables, which applies to the tables that applies to the tables that are known and queried for analysis or reporting purposes. The DBMS keys or the Database Management System Keys represent one or more attributes (i.e.
Summary: You will learn in this article, types of DBMS Keys such as Primary Key, Super Key, Candidate Key, Alternate Key, Foreign Key, Composite Key, Unique Key.
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