SQL Server 查询以列出表中除主键和备用键之外的所有列

Question

有人可以指出我如何编写查询以从不是主键或备用键的表中提取所有列名的方向。我特别想从我的查询中排除备用键。

Answer 1

DECLARE @tableName nvarchar(max) = 'table_name'

SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.COLUMNS 
WHERE TABLE_NAME = @tableName

EXCEPT

SELECT COLUMN_NAME
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS [tc]
JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE [ku] ON tc.CONSTRAINT_NAME = ku.CONSTRAINT_NAME
    AND ku.table_name = @tableName