In a
relational database, a row or "
record" or "
tuple", represents a single, implicitly structured
data
Data ( , ) are a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted for ...
item in a
table. A database table can be thought of as consisting of rows and
columns.
"What is a database row?"
Cory Janssen, Techopedia, retrieved 27 June 2014 Each row in a table represents a set of related data, and every row in the table has the same structure.
For example, in a table that represents companies, each row might represent a single company. Columns might represent things like company name, address, etc. In a table that represents ''the association'' of employees with departments, each row would associate one employee with one department.
The implicit structure of a row, and the meaning of the data values in a row, requires that the row be understood as providing a succession of data values, one in each column of the table. The row is then interpreted as a relvar composed of a set of tuples, with each tuple consisting of the two items: the name of the relevant column and the value this row provides for that column.
Each column expects a data value of a particular type.
For example, one column might require a unique identifier, another might require text representing a person's name, another might require an integer representing hourly pay in dollars.
References
{{DEFAULTSORT:Row (Database)
Data modeling
Relational model
Database management systems