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  • SQL中根据汉字的拼音首字母模糊查询

     1 ---测试数据---
    2 ifobject_id('[pactinfo]') isnotnulldroptable[pactinfo]
    3 go
    4 createtable[pactinfo]([ID]int,[pactname]varchar(4))
    5 insert[pactinfo]
    6 select1,'正常'unionall
    7 select2,'中国'unionall
    8 select3,'做饭'unionall
    9 select4,'加发'
    10
    11 ---引用前辈们的一个函数---
    12 createfunction f_GetPy(@str nvarchar(4000))
    13 returns nvarchar(4000)
    14 as
    15 begin
    16 declare @strlen int,@re nvarchar(4000)
    17 declare @t table(chr nchar(1) collate Chinese_PRC_CI_AS,letter nchar(1))
    18 insert into @t(chr,letter)
    19 select '', 'A ' union all select '', 'B ' union all
    20 select '', 'C ' union all select '', 'D ' union all
    21 select '', 'E ' union all select '', 'F ' union all
    22 select '', 'G ' union all select '', 'H ' union all
    23 select '', 'J ' union all select '', 'K ' union all
    24 select '', 'L ' union all select '', 'M ' union all
    25 select '', 'N ' union all select '', 'O ' union all
    26 select '', 'P ' union all select '', 'Q ' union all
    27 select '', 'R ' union all select '', 'S ' union all
    28 select '', 'T ' union all select '', 'W ' union all
    29 select '', 'X ' union all select '', 'Y ' union all
    30 select '', 'Z '
    31 select @strlen=len(@str),@re=''
    32 while @strlen>0
    33 begin
    34 select top 1 @re=letter+@re,@strlen=@strlen-1
    35 from @t a where chr <=substring(@str,@strlen,1)
    36 order by chr desc
    37 if @@rowcount=0
    38 select @re=substring(@str,@strlen,1)+@re,@strlen=@strlen-1
    39 end
    40 return(@re)
    41 end
    42
    43
    44 ---查询---
    45 select
    46 *
    47 from
    48 [pactinfo]
    49 where
    50 left(dbo.f_GetPy(pactname),1)='Z'
    51
    52 ---结果---
    53 ID pactname
    54 ----------- --------
    55 1 正常
    56 2 中国
    57 3 做饭
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  • 原文地址:https://www.cnblogs.com/lilwzca/p/2253020.html
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