Question

我在服务器中有10个数据库，是否可以在所有这些数据库中查询表？

select * from master..sysobjects where name ='table'

Answer 1

您可以使用以下SQL获取每个数据库的所有表。如果您愿意，可以编辑@SQL参数中的SQL以获取每个数据库的其他内容

DECLARE @databaseName VARCHAR(30) 


DECLARE @TABLES TABLE ([Database] VARCHAR(MAX), [Table_Name] VARCHAR(MAX))

DECLARE [DBs] CURSOR FOR  
SELECT name FROM sys.databases


OPEN [DBs]   
FETCH NEXT FROM [DBs] INTO @databaseName

WHILE @@FETCH_STATUS = 0   
BEGIN   

        DECLARE @SQL VARCHAR(MAX) = 'SELECT ''' + @databaseName +''' as [Database], Name FROM ['+ @databaseName +'].sys.tables'

        INSERT INTO @TABLES
        EXEC (@SQL)

        FETCH NEXT FROM [DBs] INTO @databaseName  
END   

CLOSE [DBs]   
DEALLOCATE [DBs]  

SELECT * FROM @TABLES

Answer 2

您可以使用以下步骤。

Declare @str nvarchar(max)
Select name into #temp from sys.databases
Select  'Select name from '+name+'.sys.tables' AS statements into #temp1  from #temp
Set @str=(Select distinct Stuff((Select ' '+statements from #temp1 for xml path('')),1,1,'') from #temp1)

Exec (@str)

从所有服务器获取一个表

2 个答案: