我正在研究SQL Server 2008 我想获取服务器中的所有数据库,其中包含与数据库相关的特定属性。 比如说,我们有一个带有键“x”的扩展属性,用于服务器中的某些数据库。 我希望结果是
DatabaseName | x
Db1 | value1
Db2 | value2
Db3 | value3
Db4 | null
其中Db4没有带键“x”的扩展属性
任何帮助 非常感谢你
答案 0 :(得分:1)
您可以使用sys.extended_properties
(info)和动态SQL来获取所有扩展属性。
IF OBJECT_ID(N'#extprops') IS NOT NULL DROP TABLE #extprops
CREATE TABLE #extprops (
dbname nvarchar(max),
class_desc sql_variant,
[name] sql_variant,
[value] sql_variant
)
DECLARE @sql nvarchar(max)
SELECT @sql = (
SELECT 'USE '+QUOTENAME([name])+ ' INSERT INTO #extprops SELECT ''' +[name] + ''' as dbname, class_desc, [name], [value] FROM sys.extended_properties;' +CHAR(10)
FROM sys.databases
FOR XML PATH('')
)
PRINT @sql
EXEC sp_executesql @sql
SELECT *
FROM #extprops
输出:
dbname class_desc name value
msdb DATABASE Microsoft_Management_Utility_Version ___SQLVERSION___NEW___
AdventureWorks DATABASE MS_Description AdventureWorks 2014 Sample OLTP Database
AdventureWorks OBJECT_OR_COLUMN MS_Description Check constraint [ProductLine]='r' OR [ProductLine]='m' OR [ProductLine]='t' OR [ProductLine]='s' OR [ProductLine]='R' OR [ProductLine]='M' OR [ProductLine]='T' OR [ProductLine]='S' OR [ProductLine] IS NULL
AdventureWorks OBJECT_OR_COLUMN MS_Description Stores (including store contacts) that sell Adventure Works Cycles products to consumers.
AdventureWorks OBJECT_OR_COLUMN MS_Description Manufacturing failure reasons lookup table.
AdventureWorks OBJECT_OR_COLUMN MS_Description Primary key for ScrapReason records.
AdventureWorks OBJECT_OR_COLUMN MS_Description Failure description.
...
如果您print @sql
,您会看到如下查询:
USE [master] INSERT INTO #extprops SELECT 'master' as dbname, class_desc, [name], [value] FROM sys.extended_properties;
USE [tempdb] INSERT INTO #extprops SELECT 'tempdb' as dbname, class_desc, [name], [value] FROM sys.extended_properties;
USE [model] INSERT INTO #extprops SELECT 'model' as dbname, class_desc, [name], [value] FROM sys.extended_properties;
之后,您可以使用#extprops
表格上的任何过滤器。