It can be referred to as a UNIQUE column. Such columns can be a:
in a database table
The set of complex numbers is a field which contains the set of real numbers as a proper subfield.
A Function
Every unique value has a unique distance from the mean, which leads to a unique z-score.
blank cell
zero
A unique value is a distinct data point that differentiates one record from another in a database. When a field or combination of fields in a database table has a unique value, it means that no other records can have the same value for that particular field or combination of fields, ensuring data integrity and preventing duplication.
Primary key
The builder can indicate that a field is not unique by choosing to allow duplicate entries in that field. This means that multiple records can have the same value in that field without triggering an error. This setting is usually controlled in the database schema or data model during the design phase.
A field or set a of fields Êin a database tableÊwith unique values Êcan be used as a primary key.ÊPrimary key field cannot have a null value.
A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.A primary key field is always unique. Any other field that you have can be set to not allow duplicate values if necessary too.
A common field in a database is the "primary key". It is a unique identifier for each record in a database table and is used to uniquely identify each row. It is typically a numerical value or a combination of values that ensures each record is distinct from all others.
Column names do not have to be unique within a database; they only have to be unique within a particular table. If a query joins two table where each contains a field with the same name and that field is specified in the SELECT or WHERE clause, not qualifying the column name with the table name results in ambiguity as to which field is desired.
In databases: Null Value: Represents the absence of a value or an unknown value. It indicates that the data is missing or not applicable. Not Null Value: Indicates that a field contains a valid, defined value. It means the data is present and has been explicitly set.
Every chemical compound is unique and different from the ELEMENTS it contains
Mezcal is a type of liquor that sometimes contains a worm as a unique feature.
The data entered into a field is called the field value.
is where the properties in the field is unique