What is a primary key? a field that uniquely identifies a record in a table a field that uniquely identifies a table the first security key entered by a database user the first security key entered by a database administrator
What Is A Primary Key? A Field That Uniquely Identifies A Record In A Table A Field That Uniquely Identifies A Table The First Security Key Entered By A Database User The First Security Key Entered By A Database Administrator
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What Is A Primary Key? A Field That Uniquely Identifies A Record In A Table A Field That Uniquely Identifies A Table The First Security Key Entered By A Database User The First Security Key Entered By A Database Administrator. Learn how to create, alter and drop a primary key constraint in sql, which uniquely identifies each record in a table. A primary key is a type of key that contains a column or set of columns in a table that uniquely identifies each row in the table.
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The primary key also speeds up data access and is used to establish a. Most primary keys are comprised of a single column, but they can. A primary key is a column that is defined as uniquely identifying each row in a table.
A Primary Key Is A Column That Is Defined As Uniquely Identifying Each Row In A Table.
The sql primary key is a column (or combination of columns) that uniquely identifies each record in a database table. Learn how to create, alter and drop a primary key constraint in sql, which uniquely identifies each record in a table. A primary key can be a single or multiple columns, and cannot contain null values.
A Primary Key Is A Type Of Key That Contains A Column Or Set Of Columns In A Table That Uniquely Identifies Each Row In The Table.
The primary key is an attribute. The primary key also speeds up data access and is used to establish a. Most primary keys are comprised of a single column, but they can.
Also, By Defining A Column As Primary Key, It May Be Referenced As A Foreign Key In Other.
A primary key is one or more columns that have been configured as the unique identifier field for the table.
