sql-server - 列出所有索引

Question

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 中而索引不是？

Answer 1

以下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
;

这个在某种程度上特定于某种目的(我在一个小型 C# 应用程序中使用它来查找重复索引并格式化输出，以便人类实际上可以读取)。但您可以轻松地根据您的需求进行调整。