生成索引信息及索引创建脚本

create proc p_helpindex
@tbname sysname ='' ,
@CLUSTERED int = '1'
as
--生成索引信息及索引创建脚本
--author : happyflystone
-- Http://blog.csdn.net/happyflystone
--@tbname 表名，空返回空
--@CLUSTERED 是否显示聚集索引,1显示聚集索引,2不显示聚集索引
--调用：p_helpindex 'dbo.customers','1'
--转载请注明出处
if @tbname is null or @tbname = ''
return -1
declare @t table(
table_name nvarchar(100),
schema_name nvarchar(100),
fill_factor int,
is_padded int,
ix_name nvarchar(100),
type int,
keyno int,
column_name nvarchar(200),
cluster varchar(20),
ignore_dupkey varchar(20),
[unique] varchar(20),
groupfile varchar(10)
)
declare
@table_name nvarchar(100),
@schema_name nvarchar(100),
@fill_factor int,
@is_padded int,
@ix_name nvarchar(100),@ix_name_old nvarchar(100),
@type int,
@keyno int,
@column_name nvarchar(100),--@column_name_temp nvarchar(500),
@cluster varchar(20),
@ignore_dupkey varchar(20),
@unique varchar(20),
@groupfile varchar(10)
declare ms_crs_ind cursor local static for
select
distinct table_name = a.name,
schema_name = b.name,
fill_factor= c.origfillfactor,
is_padded = case when c.status = 256 then 1 else 0 end,
ix_name = c.name,
type = c.indid , d.keyno,
column_name = e.name + case when indexkey_property(a.id,c.indid, d.keyno, 'isdescending') =1 then ' desc ' else '' end,
case when (c.status & 16)<>0 then 'clustered' else 'nonclustered' end,
case when (c.status & 1) <>0 then 'IGNORE_DUP_KEY' else '' end,
case when (c.status & 2) <>0 then 'unique' else '' end ,
g.groupname
from sysobjects a
inner join sysusers b on a.uid = b.uid
inner join sysindexes c on a.id = c.id
inner join sysindexkeys d on a.id = d.id and c.indid = d.indid
inner join syscolumns e on a.id = e.id and d.colid = e.colid
inner join sysfilegroups g on g.groupid = c.groupid
left join master.dbo.spt_values f on f.number = c.status and f.type = 'I'
where a.id = object_id(@tbname) and c.indid < 255
and (c.status & 64)=0 and c.indid >= @CLUSTERED
order by c.indid,d.keyno

open ms_crs_ind
fetch ms_crs_ind into @table_name ,
@schema_name ,
@fill_factor,
@is_padded,
@ix_name,
@type ,
@keyno,
@column_name,
@cluster ,
@ignore_dupkey ,
@unique ,
@groupfile


if @@fetch_status < 0
begin
deallocate ms_crs_ind
raiserror(15472,-1,-1) --'Object does not have any indexes.'
return -1
end
while @@fetch_status >= 0
begin
if exists(select 1 from @t where ix_name = @ix_name)
update @t
set column_name = column_name+','+@column_name
WHERE IX_NAME = @IX_NAME
else
insert into @t
select @table_name ,
@schema_name ,
@fill_factor,
@is_padded,
@ix_name,
@type ,
@keyno,
@column_name,
@cluster ,
@ignore_dupkey ,
@unique ,
@groupfile
fetch ms_crs_ind into @table_name ,
@schema_name ,
@fill_factor,
@is_padded,
@ix_name,
@type ,
@keyno,
@column_name,
@cluster ,
@ignore_dupkey ,
@unique ,
@groupfile

end
deallocate ms_crs_ind

select 'CREATE '+upper([unique])+
case when [unique] = '' then '' else ' ' end+upper(cluster)+' INDEX '+ix_name+' ON '+table_name+'('+column_name+')' +
case when fill_factor > 0 or is_padded = 1 or (upper(cluster) != 'NONCLUSTERED' and ignore_dupkey = 'IGNORE_DUP_KEY' )
then ' WITH '
+case when is_padded = 1 then 'PAD_INDEX,' else '' end
+case when fill_factor > 0 then 'FILLFACTOR ='+ltrim(fill_factor) else '' end
+case when ignore_dupkey = 'IGNORE_DUP_KEY' and upper(cluster) = 'NONCLUSTERED'
then case when (fill_factor > 0 or is_padded = 1)
then ',IGNORE_DUP_KEY' else ',IGNORE_DUP_KEY' end
else '' end
else '' end
+' ON ['+ groupfile+']' as col
from @t
return 0
go
--test
create table tb_test(id int,dept varchar(20))
go
CREATE UNIQUE CLUSTERED INDEX idx_6 ON tb_test(id) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_1 ON tb_test(id) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_2 ON tb_test(id) WITH PAD_INDEX,FILLFACTOR =90 ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_3 ON tb_test(id) WITH FILLFACTOR =90 ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_4 ON tb_test(id,dept) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_5 ON tb_test(dept,id) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_7 ON tb_test(id,dept desc ) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_8 ON tb_test(id desc ,dept) ON [PRIMARY]
go

exec p_helpindex 'tb_test'
drop proc p_helpindex
drop table tb_test

/*

col
-------------------------------------------------------------------------------------
CREATE UNIQUE CLUSTERED INDEX idx_6 ON tb_test(id) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_1 ON tb_test(id) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_2 ON tb_test(id) WITH FILLFACTOR =90 ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_3 ON tb_test(id) WITH FILLFACTOR =90 ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_4 ON tb_test(id,dept) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_5 ON tb_test(dept,id) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_7 ON tb_test(id,dept desc ) ON [PRIMARY]
CREATE NONCLUSTERED INDEX idx_8 ON tb_test(id desc ,dept) ON [PRIMARY]

*/