Приклади вживання A primary key Англійська мовою та їх переклад на Українською
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Factless identifiers are ideal for use as a primary key because they do not change.
A primary key that contains facts about a row- a telephone number
A primary key that contains facts about a row- a telephone number
If the operation is an Update to a pre-existing item, the updated attribute may serve as a primary key for an index, and thus the B tree for that index must update as well.
Each dimension table has a primary key on its Id column,
The left table in each pair of related tables in the main data source contains a primary key At least one of the relationships for every pair of related tables must include a primary key from the left table.
it must use a foreign key in conjunction with its attributes to create a primary key.
to automatically create a primary key.
some of which form a primary key.[10] Whereas in relational systems, an item features each table attribute(or juggles“null” and“unknown” values in their absence),
one of the join fields is a primary key.
primary key defined. Although a primary key is not required, it is needed for creating relations between database tables. Do you want to add">primary key automatically now? If you want to add a primary key by hand,
The columns in the referenced table must form a primary key or unique key. .
If a PRIMARY KEY constraint already exists,
Choose a primary key for each table.
Each dimension table must have a primary key.
Foreign key is a primary key from the another table.
EmployeeID appears in both tables- as a primary key….
EmployeeID appears in both tables- as a primary key….
A primary key is an attribute(or combination of attributes) that.
is called a primary key.