作为校对更改练习的一部分,我有一个索引列表(122)需要删除然后重新创建.如何重新创建这些索引,而无需每次都通过GUI并将其编写到查询窗口？
我的索引列表是从这个脚本中获得的
WITH indexCTE AS
(
SELECT Table_Name,Column_Name,Collation_Name
FROM information_schema.columns
WHERE Collation_Name IS NOT NULL AND Collation_Name = 'Modern_Spanish_CI_AS'
),indexCTE2 AS
(
SELECT i.Name [Index Name],OBJECT_NAME(i.object_ID) [Table Name],c.Name [Column Name]
FROM sys.indexes i
INNER JOIN sys.index_columns ic ON i.index_id = ic.index_id AND i.object_id = ic.object_id
INNER JOIN sys.columns c ON ic.column_id = c.column_id AND ic.object_id = c.OBJECT_ID
WHERE EXISTS (SELECT 1 FROM indexCTE t1 WHERE t1.Table_Name = OBJECT_NAME(i.object_ID) AND t1.Column_Name = c.Name)
) SELECT * FROM indexCTE2
你可能会说,我还是小DBA所以请耐心等待我！
谢谢！
解决方法
你非常接近,我会说 – 我试过这个,你可以验证这是否适合你,并告诉你要重建的预期122指数？
更新：添加了确定CLUSTERED与NONCLUSTERED索引类型的功能,并将INCLUDEd列添加到索引定义中.
WITH indexCTE AS
(
SELECT DISTINCT
i.index_id,i.name,i.object_id
FROM
sys.indexes i
INNER JOIN
sys.index_columns ic
ON i.index_id = ic.index_id AND i.object_id = ic.object_id
WHERE
EXISTS (SELECT * FROM sys.columns c
WHERE c.collation_name = 'Modern_Spanish_CI_AS'
AND c.column_id = ic.column_id AND c.object_id = ic.object_id)
),indexCTE2 AS
(
SELECT
indexCTE.name 'IndexName',OBJECT_NAME(indexCTE.object_ID) 'TableName',CASE indexCTE.index_id
WHEN 1 THEN 'CLUSTERED'
ELSE 'NONCLUSTERED'
END AS 'IndexType',(SELECT DISTINCT c.name + ','
FROM
sys.columns c
INNER JOIN
sys.index_columns ic
ON c.object_id = ic.object_id AND ic.column_id = c.column_id AND ic.Is_Included_Column = 0
WHERE
indexCTE.OBJECT_ID = ic.object_id
AND indexCTE.index_id = ic.index_id
FOR XML PATH('')
) ixcols,ISNULL(
(SELECT DISTINCT c.name + ','
FROM
sys.columns c
INNER JOIN
sys.index_columns ic
ON c.object_id = ic.object_id AND ic.column_id = c.column_id AND ic.Is_Included_Column = 1
WHERE
indexCTE.OBJECT_ID = ic.object_id
AND indexCTE.index_id = ic.index_id
FOR XML PATH('')
),'') includedcols
FROM
indexCTE
)
SELECT
'CREATE ' + IndexType + ' INDEX ' + IndexName + ' ON ' + TableName +
'(' + SUBSTRING(ixcols,1,LEN(ixcols)-1) +
CASE LEN(includedcols)
WHEN 0 THEN ')'
ELSE ') INCLUDE (' + SUBSTRING(includedcols,LEN(includedcols)-1) + ')'
END
FROM
indexCTE2
ORDER BY
TableName,IndexName
你得到你正在寻找的CREATE INDEX语句吗？
渣子
