1 - What is a row?
A data set representing a single item
2 - What is a column?
A labeled element of a tuple, e.g. "Address" or "Date of Birth"
3 - What is a table?
A set of tuples sharing the same attributes; a set of columns and rows
1 - What is a row?
A data set representing a single item
2 - What is a column?
A labeled element of a tuple, e.g. "Address" or "Date of Birth"
3 - What is a table?
A set of tuples sharing the same attributes; a set of columns and rows
a row is a single line data linked to one item/key
the columns represent the fields or attributes (address, name,…) of data. so every row has several columns/fields with data
a table is a combination of several row and columns.
Row is a record of information representing a single item
Column is an attribute or field to place information (tuple)
Table is a set of rows and columns as in a set or multiple (tuples)
Represents an instance of a specific data type (Example: Person)
A column represents a specific attribute of the data (Example: Person name)
A collection of records with the same attributes (A set of columns and rows)
A SQL row is in a Relational database term, a finite ordered list (record/tuple) of elements, a data set representing a single identity or item. It’s the horizontal data sequence represented on a table.
A SQL column is in a Relational database term, the labeled element of a tuple. It’s the vertical field of attributes represented on a table.
A SQL table is in a Relational database term, the Relation or Base relvar of a set of tuples (rows) sharing the same attributes (columns).
1 A row is a record in a table, made of a collection of attributes
2 A column is an attribute of the records
3 A table is the collection of rows that share the same attributes
ROW: A set of data from one single item
COLUMN: A labeld element of the data set (row)
TABLE: the object which contains all the data (rows and columns), or group of singles item sharing same attributes
1.- It is a set of information, record or combination of key and attribute.
2.- It is an attribute of a key.
3.- it is a combination of a key and attribute.
Are these somehow different from the rows, columns and tables of an Excel Spreadsheet ?
A row is used for keeping record of data set representing a single item
A column is a set or combination of elements of information.
A table is a whole relation or set of all data accumulated.