列出所有索引

下面是您需要的查询类型的示例:

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
;

这一个有点特定于某个特定的目的(我在一个小的C#app中使用它来查找重复的索引并格式化输出,这样它实际上可以被人读取)。但你可以很容易地适应你的需要。

你可以参考 sysindexes

另一个技巧是查看sp_helpindex的文本,以了解它如何从底层表重建信息。

sp_helptext 'sp_helpindex'

我对此没有引用,但我相信约束不会存储在sysobjects中,因为它们是另一种类型的东西;sysindexes包含关于sysobjects中对象的元数据。

如果您需要更多信息,这里有一个很好的SQL脚本,我经常使用它:

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

下面是一个脚本,它将返回SQL语句来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 

我不清楚为什么索引不存储在sys.objects中。但是,我希望找到一种简单的方法来列出数据库中所有表和视图的所有索引。以下查询检索所有索引,包括其类型、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*/