我想知道列出数据库中所有表的所有索引的最简单方法是什么。
我应该为每个表调用sp_helpindex并将结果存储在临时表中，还是有更简单的方法？
任何人都可以解释为什么约束存储在sysobjects中但索引不存在？
答案 0 :(得分：35)
以下是您需要的查询类型示例：
select
i.name as IndexName,
o.name as TableName,
ic.key_ordinal as ColumnOrder,
ic.is_included_column as IsIncluded,
co.[name] as ColumnName
from sys.indexes i
join sys.objects o on i.object_id = o.object_id
join sys.index_columns ic on ic.object_id = i.object_id
and ic.index_id = i.index_id
join sys.columns co on co.object_id = i.object_id
and co.column_id = ic.column_id
where i.[type] = 2
and i.is_unique = 0
and i.is_primary_key = 0
and o.[type] = 'U'
--and ic.is_included_column = 0
order by o.[name], i.[name], ic.is_included_column, ic.key_ordinal
;
这个有点特定于某个目的（我在一个小的C＃应用程序中使用它来查找重复的索引并格式化输出，因此它实际上是人类可读的）。但您可以根据自己的需要轻松调整它。
答案 1 :(得分：6)
您可以参考sysindexes
另一个技巧是查看sp_helpindex的文本，以了解它如何从基础表重构信息。
sp_helptext 'sp_helpindex'
我没有这方面的参考，但我认为约束不存储在sysobjects中，因为它们是另一种东西; sysindexes包含有关sysobjects中对象的元数据。
答案 2 :(得分：4)
如果您需要更多信息，这里有一个很好的SQL脚本，我不时使用它：
DECLARE @TabName varchar(100)
CREATE TABLE #temp (
TabName varchar(200), IndexName varchar(200), IndexDescr varchar(200),
IndexKeys varchar(200), IndexSize int
)
DECLARE cur CURSOR FAST_FORWARD LOCAL FOR
SELECT name FROM sysobjects WHERE xtype = 'U'
OPEN cur
FETCH NEXT FROM cur INTO @TabName
WHILE @@FETCH_STATUS = 0
BEGIN
INSERT INTO #temp (IndexName, IndexDescr, IndexKeys)
EXEC sp_helpindex @TabName
UPDATE #temp SET TabName = @TabName WHERE TabName IS NULL
FETCH NEXT FROM cur INTO @TabName
END
CLOSE cur
DEALLOCATE cur
DECLARE @ValueCoef int
SELECT @ValueCoef = low FROM Master.dbo.spt_values WHERE number = 1 AND type = N'E'
UPDATE #temp SET IndexSize =
((CAST(sysindexes.used AS bigint) * @ValueCoef)/1024)/1024
FROM sysobjects INNER JOIN sysindexes ON sysobjects.id = sysindexes.id
INNER JOIN #temp T ON T.TabName = sysobjects.name AND T.IndexName = sysindexes.name
SELECT * FROM #temp
ORDER BY TabName, IndexName
DROP TABLE #temp
答案 3 :(得分：3)
这是一个脚本，它将返回SQL语句以重新创建数据库中的所有索引。
SELECT ' CREATE ' +
CASE
WHEN I.is_unique = 1 THEN ' UNIQUE '
ELSE ''
END +
I.type_desc COLLATE DATABASE_DEFAULT + ' INDEX ' +
I.name + ' ON ' +
SCHEMA_NAME(T.schema_id) + '.' + T.name + ' ( ' +
KeyColumns + ' ) ' +
ISNULL(' INCLUDE (' + IncludedColumns + ' ) ', '') +
ISNULL(' WHERE ' + I.filter_definition, '') + ' WITH ( ' +
CASE
WHEN I.is_padded = 1 THEN ' PAD_INDEX = ON '
ELSE ' PAD_INDEX = OFF '
END + ',' +
'FILLFACTOR = ' + CONVERT(
CHAR(5),
CASE
WHEN I.fill_factor = 0 THEN 100
ELSE I.fill_factor
END
) + ',' +
-- default value
'SORT_IN_TEMPDB = OFF ' + ',' +
CASE
WHEN I.ignore_dup_key = 1 THEN ' IGNORE_DUP_KEY = ON '
ELSE ' IGNORE_DUP_KEY = OFF '
END + ',' +
CASE
WHEN ST.no_recompute = 0 THEN ' STATISTICS_NORECOMPUTE = OFF '
ELSE ' STATISTICS_NORECOMPUTE = ON '
END + ',' +
' ONLINE = OFF ' + ',' +
CASE
WHEN I.allow_row_locks = 1 THEN ' ALLOW_ROW_LOCKS = ON '
ELSE ' ALLOW_ROW_LOCKS = OFF '
END + ',' +
CASE
WHEN I.allow_page_locks = 1 THEN ' ALLOW_PAGE_LOCKS = ON '
ELSE ' ALLOW_PAGE_LOCKS = OFF '
END + ' ) ON [' +
DS.name + ' ] ' + CHAR(13) + CHAR(10) + ' GO' [CreateIndexScript]
FROM sys.indexes I
JOIN sys.tables T
ON T.object_id = I.object_id
JOIN sys.sysindexes SI
ON I.object_id = SI.id
AND I.index_id = SI.indid
JOIN (
SELECT *
FROM (
SELECT IC2.object_id,
IC2.index_id,
STUFF(
(
SELECT ' , ' + C.name + CASE
WHEN MAX(CONVERT(INT, IC1.is_descending_key))
= 1 THEN
' DESC '
ELSE
' ASC '
END
FROM sys.index_columns IC1
JOIN sys.columns C
ON C.object_id = IC1.object_id
AND C.column_id = IC1.column_id
AND IC1.is_included_column =
0
WHERE IC1.object_id = IC2.object_id
AND IC1.index_id = IC2.index_id
GROUP BY
IC1.object_id,
C.name,
index_id
ORDER BY
MAX(IC1.key_ordinal)
FOR XML PATH('')
),
1,
2,
''
) KeyColumns
FROM sys.index_columns IC2
--WHERE IC2.Object_id = object_id('Person.Address') --Comment for all tables
GROUP BY
IC2.object_id,
IC2.index_id
) tmp3
)tmp4
ON I.object_id = tmp4.object_id
AND I.Index_id = tmp4.index_id
JOIN sys.stats ST
ON ST.object_id = I.object_id
AND ST.stats_id = I.index_id
JOIN sys.data_spaces DS
ON I.data_space_id = DS.data_space_id
JOIN sys.filegroups FG
ON I.data_space_id = FG.data_space_id
LEFT JOIN (
SELECT *
FROM (
SELECT IC2.object_id,
IC2.index_id,
STUFF(
(
SELECT ' , ' + C.name
FROM sys.index_columns IC1
JOIN sys.columns C
ON C.object_id = IC1.object_id
AND C.column_id = IC1.column_id
AND IC1.is_included_column =
1
WHERE IC1.object_id = IC2.object_id
AND IC1.index_id = IC2.index_id
GROUP BY
IC1.object_id,
C.name,
index_id
FOR XML PATH('')
),
1,
2,
''
) IncludedColumns
FROM sys.index_columns IC2
--WHERE IC2.Object_id = object_id('Person.Address') --Comment for all tables
GROUP BY
IC2.object_id,
IC2.index_id
) tmp1
WHERE IncludedColumns IS NOT NULL
) tmp2
ON tmp2.object_id = I.object_id
AND tmp2.index_id = I.index_id
WHERE I.is_primary_key = 0
AND I.is_unique_constraint = 0
--AND T.name NOT LIKE 'mt_%'
--AND I.name NOT LIKE 'mt_%'
--AND I.Object_id = object_id('Person.Address') --Comment for all tables
--AND I.name = 'IX_Address_PostalCode' --comment for all indexes
答案 4 :(得分：0)
我没有清楚的解释为什么索引不存储在sys.objects中。但是我想为找到一种简单的方法列出数据库中所有表和视图的所有索引做出贡献。以下查询检索所有索引，包括它们的类型，对象ID和对象类型。
use /*Enter here your database*/
go
select A.Object_id,B.name,B.type,B.type_desc, A.index_id,A.type,A.type_desc
from sys.indexes A left join sys.objects B on A.object_id=B.object_id
where B.type = 'U' or B.type='V' /*filtering on U or V to retrieve tables and views only*/
order by B.name ASC /*Optional sorting*/
答案 5 :(得分：0)
我编写了这段代码来遍历您服务器中的所有数据库，并将其推送到名为 Maintenance 的数据库中的一个表中。您应该先创建此数据库，然后在该数据库中创建一个包含以下字段的表：
CREATE TABLE [dbo].[DBCC_Stats](
[ID] [int] IDENTITY(1,1) NOT NULL,
[DatabaseName] [varchar](50) NULL,
[SchemaName] [nvarchar](128) NULL,
[TableName] [sysname] NOT NULL,
[StatName] [nvarchar](128) NULL,
[modification_counter] [bigint] NULL,
[rows] [bigint] NULL,
[rows_sampled] [bigint] NULL,
[% Rows Sampled] [bigint] NULL,
[last_updated] [datetime2](7) NULL,
[DateEntered] [datetime] NULL,
CONSTRAINT [PK_DBCC_Stats] PRIMARY KEY CLUSTERED
(
[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
ALTER TABLE [dbo].[DBCC_Stats] ADD CONSTRAINT [DF_DBCC_Stats_DateEntered] DEFAULT (getdate()) FOR [DateEntered]
要使用下面的存储过程，您需要传入服务器名称。 usp_Execute_Stats '[您的服务器名称]'
`CREATE PROCEDURE usp_Execute_Stats
@ServerName varchar(100)
AS
BEGIN
DECLARE @strSQL varchar(max)
SET @strSQL='USE ?
SELECT ''' + '?' + ''' AS DatabaseName,OBJECT_SCHEMA_NAME(obj.object_id) SchemaName, obj.name TableName,
stat.name StatName, modification_counter,
[rows], rows_sampled, rows_sampled* 100 / [rows] AS [% Rows Sampled],
last_updated
FROM ' + @ServerName + '.' + '?' + '.sys.objects AS obj
INNER JOIN ' + @ServerName + '.' + '?' + '.sys.stats AS stat ON stat.object_id = obj.object_id
CROSS APPLY sys.dm_db_stats_properties(stat.object_id, stat.stats_id) AS sp
WHERE obj.is_ms_shipped = 0
ORDER BY modification_counter DESC'
INSERT INTO Maintenance.dbo.vwDBCC_Stats
EXEC sp_MSforeachdb @strSQL
--Delete older logs
DELETE Maintenance.dbo.DBCC_Stats
--WHERE DatabaseName IN('Master','Model','MSDB','TempDB')
WHERE [DateEntered] < getdate()-14
END`