COL_NAME requiring the ID of the table and the column ID (position) of the column whose name you are after : COL_NAME « System Functions « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » System Functions » COL_NAME 
25. 3. 1. COL_NAME requiring the ID of the table and the column ID (position) of the column whose name you are after
3>
4>
5CREATE TABLE publishers(
6>    pub_id         char(4)           NOT NULL,
7>    pub_name       varchar(40)           NULL,
8>    city           varchar(20)           NULL,
9>    state          char(2)               NULL,
10>    country        varchar(30)           NULL DEFAULT('USA')
11)
12> GO
1>
2>
3insert publishers values('1''Publisher A', 'Vancouver',  'MA', 'USA')
4insert publishers values('2''Publisher B', 'Washington', 'DC', 'USA')
5insert publishers values('3''Publisher C', 'Berkeley',   'CA', 'USA')
6insert publishers values('4''Publisher D', 'New York',   'NY', 'USA')
7insert publishers values('5''Publisher E', 'Chicago',    'IL', 'USA')
8insert publishers values('6''Publisher F', 'Dallas',     'TX', 'USA')
9insert publishers values('7''Publisher G', 'Vancouver',  'BC', 'Canada')
10insert publishers values('8''Publisher H', 'Paris',      NULL, 'France')
11> GO

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)

(rows affected)
1>
2>
3SELECT COL_NAME(OBJECT_ID('publishers'), 1)
4> GO

--------------------------------------------------------------------------------------------------------------------------------
pub_id

(rows affected)
1>
2> drop table publishers;
3> GO
1>
25. 3. COL_NAME
25. 3. 1. COL_NAME requiring the ID of the table and the column ID (position) of the column whose name you are after
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