如何在SQL Server中识别具有损坏的依赖项的视图？

Question

我们在继承的数据库中有大量的视图,其中一些缺少依赖项(表甚至其他视图)？

识别缺少依赖关系的视图的最佳方法是什么？

Answer 1

DECLARE @stmt nvarchar(max) = ''
DECLARE @vw_schema  NVARCHAR(255)
DECLARE @vw_name varchar(255)

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

CREATE TABLE #badViews 
(    
    [schema]  NVARCHAR(255),
    name VARCHAR(255),
    error NVARCHAR(MAX) 
)

CREATE TABLE #nullData
(  
    null_data varchar(1)
)


DECLARE tbl_cursor CURSOR LOCAL FORWARD_ONLY READ_ONLY
    FOR SELECT name, SCHEMA_NAME(schema_id) AS [schema]
        FROM sys.objects 
        WHERE type='v'

OPEN tbl_cursor
FETCH NEXT FROM tbl_cursor
INTO @vw_name, @vw_schema



WHILE @@FETCH_STATUS = 0
BEGIN
    SET @stmt = 'SELECT TOP 1 * FROM [' + @vw_schema + N'].[' + @vw_name + ']'
    BEGIN TRY
        INSERT INTO #nullData EXECUTE sp_executesql @stmt
    END TRY 

    BEGIN CATCH
        IF ERROR_NUMBER() != 213 BEGIN
            INSERT INTO #badViews (name, [schema], error) values (@vw_name, @vw_schema, ERROR_MESSAGE())     
        END
    END CATCH


    FETCH NEXT FROM tbl_cursor 
    INTO @vw_name, @vw_schema
END

CLOSE tbl_cursor -- free the memory
DEALLOCATE tbl_cursor

SELECT * FROM #badViews

DROP TABLE #badViews
DROP TABLE #nullData

2017年更新

根据@ robyaw的回答更新了答案.

我还修复了select语句中计算值的错误.SELECT TOP 1 NULL from vwTest当vwTest包含像我们这样的列时似乎没有抛出错误1/0 as [Col1],但SELECT TOP 1 * from vwTest它确实抛出异常.

更新2018 修复名称中包含特殊字符的视图和/或模式的误报.感谢@LucasAyala