Question

我需要列出Pivot格式的表列表的所有DISTINCT列名称。我需要列标题是实际的列名，以便我可以看到哪些表缺少列。

在下面的示例中，使用前两个表格，ChnlngAssess_PTR应将问题尝试列（第6列）设为空白。

table_name      RespID  LTID    UserID  ProjectID   QuestionAttempt QType   Question
----------------------------------------------------------------------------------------
ARTWBT_PTR      RespID  LTID    UserID  ProjectID   QuestionAttempt QType   Question
ChlngAssess_PTR RespID  LTID    UserID  ProjectID                   QType   Question

Answer 1

将AdventureWorksDW2012替换为您的数据库名称，如果您想限制表格，请在WHERE

的第一个选择中添加t.TABLE_NAME子句

IF OBJECT_ID('tempdb..#tempTable') IS NOT NULL DROP TABLE #tempTable

SELECT 
    t.TABLE_NAME,
    c.COLUMN_NAME
INTO #tempTable
FROM 
    AdventureWorksDW2012.INFORMATION_SCHEMA.TABLES t
    inner join
    AdventureWorksDW2012.INFORMATION_SCHEMA.COLUMNS c on c.TABLE_NAME = t.TABLE_NAME


DECLARE @DynamicPivotQuery AS NVARCHAR(MAX)
DECLARE @ColumnName AS NVARCHAR(MAX)


SELECT @ColumnName= ISNULL(@ColumnName + ',','') 
       + QUOTENAME(COLUMN_NAME)
FROM (SELECT DISTINCT COLUMN_NAME FROM #tempTable) AS COLUMN_NAME


SET @DynamicPivotQuery = 
  N'SELECT TABLE_NAME, ' + @ColumnName + '
    FROM #tempTable
    PIVOT(Max(COLUMN_NAME) 
          FOR COLUMN_NAME IN (' + @ColumnName + ')) AS PVTTable'

EXEC sp_executesql @DynamicPivotQuery

Answer 2

这将在数据库的所有表中找到所有字段名称。

SELECT t.name AS table_name,
SCHEMA_NAME(schema_id) AS schema_name,
c.name AS column_name
FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
ORDER BY schema_name, table_name;

列出SQL Server表中的所有列

2 个答案: