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What is a unique identifier in Access?
Primary key
What is another term for unique identifier?
primary key
A unique identifier also is called a primary key?
That is true :)
What is the meaning of primary key in Microsoft access?
The primary key is the designation given to the field or fields that make a record unique in a table. Often times in Access an autonumber field is used as the primary key because Access will always generate a unique number for each record. Having a primary key is not a requirement but it is highly recommended that you have a primary key in each table.
Can a primary key have a blank or null value entered into its cell?
No. A Primary Key is the Unique identifier and cannot be null and cannot be duplicate.
How is the primary key used?
It is used as the unique identifier for each record and is used to sort the data
Is a unique identifier also called a record key?
The normal term would be a primary key, not a record key.
What is used to unique identify each record in a database?
The "primary key" is the identifier that database systems use to identify a record uniquely.
What is a Primary key in relation to functions and relations?
A primary key is the identifier in a table. It cannot contain values that are null, and it has to be unique for every record. For example, a driver's license number could be a primary key in a relational database table. Every driver is assigned to one unique identifier, or driver's license number, and no two driver's license numbers are identical.
What is the difference between a Primary Key and a Secondary Key?
A Primary Key is a unique identifier for each record in a database table and is used to enforce entity integrity. A Secondary Key is a non-unique index that is used for querying and organizing data efficiently but does not have the constraint of uniqueness.
What is the term for the field that provides Access with a unique identifier for each record?
This field is usually called the primary key field
What is the difference between primary key and secondary key in database?
The primary key is the field containing unique values that aid in database operations. The secondary key is used in addition or as an alternate to the primary key. Both are candidate keys, it's just that one was chosen to be primary.
