primary key वाक्य
उदाहरण वाक्य
मोबाइल
- Primary keys are defined in the ANSI SQL Standard, through the PRIMARY KEY constraint.
- Primary keys are defined in the ANSI SQL Standard, through the PRIMARY KEY constraint.
- The only significance of the surrogate key is to act as the primary key.
- But the primary key to making it all work was, inevitably, carefully calibrated performances.
- The field surveyId is used as the primary key.
- The foreign key is typically a primary key of an entity it is related to.
- If " two " rows have identical primary keys, they are considered the same row.
- Database tables in a cache group must each have a defined primary key-foreign key constraints.
- The employee number will be unique in the organization and would be the primary key.
- A " primary key " assigns a field to its " special order table ".
- The primary keys within a database are used to define the relationships among the tables.
- Therefore, most physical implementations have a unique primary key ( PK ) for each table.
- Primary keys were added to the SQL standard mainly as a convenience to the application programmer.
- The primary key in the first may be associated with multiple primary keys in the second.
- The primary key in the first may be associated with multiple primary keys in the second.
- Consider a database where each operation begins with a lookup of a record s primary key.
- Other types of constraints ( unique, primary key, and foreign key constraints ) are not inherited.
- The primary key to success in a kiosk or RMU is low SKUs and higher transaction totals.
- In a row-oriented indexed system, the primary key is the rowid that is mapped to indexed data.
- Secondary indexes have primary keys at their leaves to logically link to the record in the primary index.
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