. . . . . . . . "SQL Relationship" . . . . . . . . . . "Association between two or more entities where each has (or plays) a specific role.\r\n In SQL, a relationship is represented by sets of n-tuple records in a table (the relation predicate).\r\n In this kind of relationship, each record represents a collection of tuples that describes an entity.\r\n Basically, each entity is identified by a primary key derived from the value of a\r\n designated table column. Outside the table of original designation, a primary-key\r\n value is referred to as a foreign-key when used to construct records in other tables where\r\n it doesn't function as the primary-key, i.e., those tables use this as a reference mechanism\r\n for identifying records in other tables."@en . . . . . . . "Association between two or more entities where each has (or plays) a specific role.\n In SQL, a relationship is represented by sets of n-tuple records in a table (the relation predicate).\n In this kind of relationship, each record represents a collection of tuples that describes an entity.\n Basically, each entity is identified by a primary key derived from the value of a\n designated table column. Outside the table of original designation, a primary-key\n value is referred to as a foreign-key when used to construct records in other tables where\n it doesn't function as the primary-key, i.e., those tables use this as a reference mechanism\n for identifying records in other tables."@en . . . .