sql - 我正在尝试创建一个 SQL 语句，该语句将导致 - 第 1 列：列标题，第 2 列：（该列是否由数据填充）

Question

Select 
    column_name,
    Case 
       When Exist (Select * from information schema.columns
                   Where table_name = 'table 1'
                     And column_name in (Select column_name 
                                         from information_schema.columns 
                                         Where table_name = 'table 1'))
          Then 'populated'
          Else 'not populated'

以结果结束

From 
    information_schema.columns
Where 
    table_name = ‘table 1'

--- case 语句不为左侧的每个单独的列名循环