How Many Primary Keys Can A Table In Database Have Mcq at Susan Keefe blog

How Many Primary Keys Can A Table In Database Have Mcq. In sql, a table can have only one primary key, although the primary key can consist of more than one column. A) the primary key must be unique for a given table. You can also have unique indexes on your. You can only have one primary key, but you can have multiple columns in your primary key. Questions on index, insert, primary key, inner joines, outer joines, delete, union, operators, update, having clause, truncate, candiate key. A unique key allows null values, while a primary key does not — d. A table can have only one primary key, but multiple unique. A foreign key is a column or columns of data in one table that connects to the primary key data in the original table. B) specifying a zero (0) for the lower bound for the association multiplicity on a class.

B) specifying a zero (0) for the lower bound for the association multiplicity on a class. A unique key allows null values, while a primary key does not — d. A foreign key is a column or columns of data in one table that connects to the primary key data in the original table. A table can have only one primary key, but multiple unique. You can only have one primary key, but you can have multiple columns in your primary key. In sql, a table can have only one primary key, although the primary key can consist of more than one column. You can also have unique indexes on your. Questions on index, insert, primary key, inner joines, outer joines, delete, union, operators, update, having clause, truncate, candiate key. A) the primary key must be unique for a given table.

SQL FOREIGN KEY Scaler Topics

How Many Primary Keys Can A Table In Database Have Mcq In sql, a table can have only one primary key, although the primary key can consist of more than one column. A table can have only one primary key, but multiple unique. Questions on index, insert, primary key, inner joines, outer joines, delete, union, operators, update, having clause, truncate, candiate key. You can only have one primary key, but you can have multiple columns in your primary key. A) the primary key must be unique for a given table. A unique key allows null values, while a primary key does not — d. B) specifying a zero (0) for the lower bound for the association multiplicity on a class. In sql, a table can have only one primary key, although the primary key can consist of more than one column. A foreign key is a column or columns of data in one table that connects to the primary key data in the original table. You can also have unique indexes on your.

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