SQL SERVER 2005 獲取表的所有索引資訊以及刪除和新建語句

iSQlServer發表於2009-07-16
SQLServer索引
BEGIN
        WITH tx AS
        (
                SELECT a.object_id
                      ,b.name AS schema_name
                      ,a.name AS table_name
                      ,c.name as ix_name
                      ,c.is_unique AS ix_unique
                      ,c.type_desc AS ix_type_desc
                      ,d.index_column_id
                      ,d.is_included_column
                      ,e.name AS column_name
                      ,f.name AS fg_name
                      ,d.is_descending_key AS is_descending_key
                      ,c.is_primary_key
                      ,c.is_unique_constraint
                  FROM sys.tables AS a
                 INNER JOIN sys.schemas AS b            ON a.schema_id = b.schema_id AND a.is_ms_shipped = 0
                 INNER JOIN sys.indexes AS c            ON a.object_id = c.object_id
                 INNER JOIN sys.index_columns AS d      ON d.object_id = c.object_id AND d.index_id = c.index_id
                 INNER JOIN sys.columns AS e            ON e.object_id = d.object_id AND e.column_id = d.column_id
                 INNER JOIN sys.data_spaces AS f        ON f.data_space_id = c.data_space_id
        )
        SELECT
               Drop_Index   = CASE WHEN (a.is_primary_key = 1 OR a.is_unique_constraint = 1)
                                   THEN 'ALTER TABLE ' + a.table_name + ' DROP CONSTRAINT ' + a.ix_name
                                   ELSE 'DROP INDEX ' + a.ix_name collate SQL_Latin1_General_CP1_CI_AS + ' ON ' + a.schema_name + '.' + a.table_name  END
              ,Create_Index = CASE WHEN (a.is_primary_key = 1 OR a.is_unique_constraint = 1)
                                   THEN 'ALTER TABLE ' + a.table_name + ' ADD CONSTRAINT ' + a.ix_name 
                                       + CASE WHEN a.is_primary_key = 1 THEN ' PRIMARY KEY' ELSE ' UNIQUE' END + '(' + indexColumns.ix_index_column_name + ')'
                                   ELSE 'CREATE ' + CASE WHEN a.ix_unique = 1 THEN 'UNIQUE ' ELSE '' END 
                                       + a.ix_type_desc + ' INDEX ' + a.ix_name collate SQL_Latin1_General_CP1_CI_AS + ' ON ' + a.schema_name
                                       + '.' + a.table_name + '(' + indexColumns.ix_index_column_name + ')'
                                       + CASE WHEN IncludeIndex.ix_included_column_name IS NOT NULL THEN ' INCLUDE (' + IncludeIndex.ix_included_column_name + ')' ELSE '' END
                                       + ' ON [' + a.fg_name +']' END
              ,CASE WHEN a.ix_unique = 1 THEN 'UNIQUE' END AS ix_unique
              ,a.ix_type_desc
              ,a.ix_name
              ,a.schema_name
              ,a.table_name
              ,indexColumns.ix_index_column_name
              ,IncludeIndex.ix_included_column_name
              ,a.fg_name
              ,a.is_primary_key
              ,a.is_unique_constraint                                       
        FROM
        (
                SELECT DISTINCT
                       ix_unique
                      ,ix_type_desc
                      ,ix_name
                      ,schema_name
                      ,table_name
                      ,fg_name
                      ,is_primary_key
                      ,is_unique_constraint
                  FROM tx
        ) AS a
        OUTER APPLY
        (
                SELECT ix_index_column_name
                       = STUFF((
                                SELECT ',' + column_name + CASE WHEN is_descending_key = 1 THEN ' DESC' ELSE '' END
                                  FROM tx AS b
                                 WHERE schema_name = a.schema_name
                                   AND table_name=a.table_name
                                   AND ix_name=a.ix_name
                                   AND ix_type_desc=a.ix_type_desc
                                   AND fg_name=a.fg_name
                                   AND is_included_column=0
                                 ORDER BY index_column_id
                                   FOR XML PATH('')
                                ),1,1,'')
        )IndexColumns
        OUTER APPLY
        (
                SELECT ix_included_column_name
                       = STUFF((
                                SELECT ',' + column_name
                                  FROM tx AS b
                                 WHERE schema_name = a.schema_name
                                   AND table_name=a.table_name
                                   AND ix_name=a.ix_name
                                   AND ix_type_desc=a.ix_type_desc
                                   AND fg_name=a.fg_name
                                   AND is_included_column=1
                                 ORDER BY index_column_id
                                   FOR XML PATH('')
                                ), 1,1,'')
        )IncludeIndex
        ORDER BY a.schema_name,a.table_name,a.ix_name;
END

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/16436858/viewspace-609341/，如需轉載，請註明出處，否則將追究法律責任。

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