Question

我即将编写一个脚本来向数据库添加新索引，我希望无论数据库当前的索引如何，该脚本都能正常工作。

因此，脚本的第一步应该是删除所有当前索引。（我可以很容易地运行.net代码，但我认为TSQL对这类事情的痛苦会少一些）

（这是用于小型数据库的开发，所以我不介意它是否是管理索引的最快方法，这需要适用于SqlServer 2005和SqlServer 2008）

Answer 1

我在http://refactormycode.com/codes/522-drop-all-indexes-in-sql-server找到了这个。它似乎删除了当前数据库中的所有索引：

Declare @Index varchar(128)
Declare @Table varchar(128)

Select
SysIndexes.Name As 'Index',
SysObjects.Name As 'Table'
Into
#Indexes
From
SysIndexes
Inner Join SysObjects On
    SysObjects.id = SysIndexes.id
Where
SysIndexes.Name Is Not Null
and SysObjects.XType = 'U'
Order By
SysIndexes.Name,
SysObjects.Name

While (Select Count(*) From #Indexes) > 0
Begin
    Set @Index = (Select Top 1 [Index] From #Indexes)
    Set @Table = (Select Top 1 [Table] From #Indexes)

    --Print 'Drop Index [' + @Index + '] On [' + @Table + ']' + Char(13)
    Exec ('Drop Index [' + @Index + '] On [' + @Table + ']')
    Delete From #Indexes Where [Index] = @Index and [Table] = @Table
End

Drop Table #Indexes

Answer 2

另一个工作脚本：

http://blogs.msdn.com/b/tihot/archive/2006/01/16/513548.aspx


    DECLARE @indexName NVARCHAR(128)
    DECLARE @dropIndexSql NVARCHAR(4000)


    DECLARE tableIndexes CURSOR FOR
    SELECT name FROM sysindexes
    WHERE id = OBJECT_ID(N'tableName') AND 
      indid > 0 AND indid < 255 AND
      INDEXPROPERTY(id, name, 'IsStatistics') = 0
    ORDER BY indid DESC


    OPEN tableIndexes
    FETCH NEXT FROM tableIndexes INTO @indexName
    WHILE @@fetch_status = 0
    BEGIN
      SET @dropIndexSql = N'DROP INDEX tableName.' + @indexName
      EXEC sp_executesql @dropIndexSql

      FETCH NEXT FROM tableIndexes INTO @indexName
    END


    CLOSE tableIndexes
    DEALLOCATE tableIndexes

如何从SQL Server数据库中删除所有数据库索引

2 个答案: