Thursday, 18 October 2012

Blank Data Table

Blank Data Table

In relational databases and flat file databases, a table is a set of data elements (values) that is organized using a model of vertical columns (which are identified by their name) and horizontal rows, the cell being the unit where a row and column intersect.A table has a specified number of columns, but can have any number of rows[citation needed]. Each row is identified by the values appearing in a particular column subset which has been identified as a unique key index.
Table is another term for relations; although there is the difference in that a table is usually a multiset (bag) of rows whereas a relation is a set and does not allow duplicates. Besides the actual data rows, tables generally have associated with them some metadata, such as constraints on the table or on the values within particular columns 

Blank Data Table

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 Blank Data Table

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Blank Data Table

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