我想返回我的数据库中所有表的列表以及该表的任何相关扩展属性。
这给了我表格列表:
SELECT TABLE_NAME AS tTableName, TABLE_TYPE AS tTableType
FROM information_schema.tables AS t
WHERE TABLE_TYPE = N'BASE TABLE'
ORDER BY TABLE_NAME
这为我提供了包含它们的表的扩展属性列表:
SELECT OBJECT_NAME(ep.major_id) AS [epTableName],
CAST(ep.Value AS nvarchar(500)) AS [epExtendedProperty]
FROM sys.extended_properties AS ep
WHERE ep.name = N'MS_Description' AND ep.minor_id = 0
我看不到如何组合这些并正确保留 WHERE 条件。这是错误的,但它会让您了解我哪里出错了:
SELECT TABLE_NAME AS tTableName, TABLE_TYPE AS tTableType,
OBJECT_NAME(ep.major_id) AS [epTableName],
CAST(ep.Value AS nvarchar(500)) AS [epExtendedProperty]
FROM information_schema.tables AS t
LEFT OUTER JOIN sys.extended_properties AS ep ON
t.table_name= OBJECT_NAME(ep.major_id)
WHERE TABLE_TYPE = N'BASE TABLE'
-- No clue where to put this: AND ep.name = N'MS_Description' AND ep.minor_id = 0
ORDER BY TABLE_NAME
在 Simon1979 的答案下方的乔的评论中添加...
SELECT
t.Table_Name,
q.epExtendedProperty
FROM
information_schema.tables t
LEFT OUTER JOIN
(SELECT
OBJECT_NAME(ep.major_id) epTableName,
CAST(ep.Value AS nvarchar(500)) AS epExtendedProperty
FROM
sys.extended_properties ep
WHERE
ep.name = N'MS_Description' AND
ep.minor_id = 0) q
ON t.Table_Name = q.epTableName
WHERE
t.Table_Type = N'BASE TABLE' AND
t.Table_Name <> 'sysdiagrams'
ORDER BY
q.epExtendedProperty ASC,
t.Table_Name ASC