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The term Primary Key IS called just that in a database.. It can either be a normal attribute that is guaranteed to be unique (such as Social Security Number or employee clock number in a table with no more than one record per person) or it can be generated by the DBMS (such as a globally unique identifier, or GUID.
Wiki User
∙ 9y ago
Wiki User
∙ 9y agoA primary key helps in identify the records uniquely. A primary key is one that is unique and not null.A primary key that is system generated is called surrogate key.
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When a primary key is begging assigned by the database automatically it is called?
autonumber key
What is the primary key field of a database?
its a unique key use to identify data in database
In a database a field that uniquely identifies a particular record in a table is called?
In a database, a field that uniquely identifies a particular record in a table is called
What is A field that uniquely identifies a particular record in a table called?
A field that uniquely identifies a particular record in a table is called a primary key. The field or fields on which records are sorted is called the sort key.
What is the meaning for primary key in database?
With reference to Databases, what are Primary keys?
Can you insert primary key only to one field in the database?
Yes. Primary key can be inserted to one field in the database. The field should be unique and not null.
Does a primary key have to be an integer in an Access database?
No, it does not. A primary key can be different types of data, not just an integer.
How do you change the primary key?
What type of database are you using
What is the primary key field in a database?
what is a Absolute reference
What can happen if a database has no primary key?
mem will lost
What is the difference between primary key and secondary key in database?
A primary key is a unique identifier for each record in a database table and is used to ensure data integrity and enforce entity integrity. A secondary key, also known as a candidate key, is an alternate unique key that can be used to identify records, but is not designated as the primary key.
How primary keys in database are denoted?
In the actual SQL, by means of the primary key constraint.
