identity column - definizione. Che cos'è identity column
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Cosa (chi) è identity column - definizione


Identity column         
DATABASE FIELD THAT UNIQUELY IDENTIFIES EVERY ROW IN THE TABLE AND IS MADE UP OF VALUES GENERATED BY THE DATABASE
An identity column is a column (also known as a field) in a database table that is made up of values generated by the database. This is much like an AutoNumber field in Microsoft Access or a sequence in Oracle.
column         
  • Table showing values of K for structural columns of various end conditions (adapted from Manual of Steel Construction, 8th edition, American Institute of Steel Construction, Table C1.8.1)
  • Waterloo]].
  • Persia (Iran)]]
  • Parliament House]] in [[Helsinki]], [[Finland]]
  • A granite structure column by Hilma Flodin-Rissanen in [[Vyborg]]
  • Dragon pillar from the ''[[Yingzao Fashi]]'', [[Song dynasty]]
STRUCTURAL ELEMENT SUSTAINING THE WEIGHT OF A BUILDING
Columns; Base (architecture); Pillars; Collumn; Structural column; Architectural Columns; Column (architecture); Wikipedia talk:Articles for creation/Coloumn; Column drum; Y-column; Y-shaped column; Pillar; Pillar (architecture)
(columns)
Frequency: The word is one of the 3000 most common words in English.
1.
A column is a tall, often decorated cylinder of stone which is built to honour someone or forms part of a building.
...a London landmark, Nelson's Column in Trafalgar Square.
= pillar
N-COUNT
2.
A column is something that has a tall narrow shape.
The explosion sent a column of smoke thousands of feet into the air.
N-COUNT: usu N of n
3.
A column is a group of people or animals which moves in a long line.
There were reports of columns of military vehicles appearing on the streets.
N-COUNT: usu N of n
4.
On a printed page such as a page of a dictionary, newspaper, or printed chart, a column is one of two or more vertical sections which are read downwards.
We had stupidly been looking at the wrong column of figures...
N-COUNT
5.
In a newspaper or magazine, a column is a section that is always written by the same person or is always about the same topic.
She also writes a regular column for the Times Educational Supplement.
N-COUNT: usu supp N
6.
column         
  • Table showing values of K for structural columns of various end conditions (adapted from Manual of Steel Construction, 8th edition, American Institute of Steel Construction, Table C1.8.1)
  • Waterloo]].
  • Persia (Iran)]]
  • Parliament House]] in [[Helsinki]], [[Finland]]
  • A granite structure column by Hilma Flodin-Rissanen in [[Vyborg]]
  • Dragon pillar from the ''[[Yingzao Fashi]]'', [[Song dynasty]]
STRUCTURAL ELEMENT SUSTAINING THE WEIGHT OF A BUILDING
Columns; Base (architecture); Pillars; Collumn; Structural column; Architectural Columns; Column (architecture); Wikipedia talk:Articles for creation/Coloumn; Column drum; Y-column; Y-shaped column; Pillar; Pillar (architecture)
¦ noun
1. an upright pillar supporting an arch or other structure or standing alone as a monument.
an upright shaft used for controlling a machine.
2. a vertical division of a page or text.
a regular section of a newspaper or magazine on a particular subject or by a particular person.
3. a line of people or vehicles moving in the same direction.
Military a narrow-fronted deep formation of troops in successive lines.
Derivatives
columnar adjective
columned adjective
Origin
ME: partly from OFr. columpne, reinforced by its source, L. columna 'pillar'.