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SQL重复字符串

sql

如果字段在单元格中具有重复值,是否有一种评估字段的方法。例如,如果某人按住数字键并返回“ 00000”或“ 222222222”或“
333”的某种变化形式,则该值只能在此字段中为数字。我正在寻找一种查询可能会出现这种模式的字段的方法。


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2021-04-15

共1个答案

小编典典

以下查找模式,即333 …或123 …或987 …

可以将其想象为Rummy 500 …运行和3或更多的组。

Declare @Table table (col int)
Insert into @Table values
(4141243),(4290577),(98765432),(78635389),(4141243),(22222),(4290046),(55555555),(4141243),(6789),(77777),(45678),(4294461),(55555),(4141243),(5555)

Declare @Num table (Num int);Insert Into @Num values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9)

Select Distinct A.*
  From @Table A
  Join (
        Select Patt=replicate(Num,3) from @Num
        Union All
        Select Patt=right('000'+cast((Num*100+Num*10+Num)+12 as varchar(5)),3) from @Num where Num<8
        Union All
        Select Patt=reverse(right('000'+cast((Num*100+Num*10+Num)+12 as varchar(5)),3)) from @Num where Num<8
       ) B on CharIndex(Patt,cast(col as varchar(25)))>0

退货

col
5555
6789
22222
45678
55555
77777
55555555
98765432

现在,如果您不想识别“运行”(123 …)”,只需删除以下内容:

    Union All
    Select Patt=right('000'+cast((Num*100+Num*10+Num)+12 as varchar(5)),3) from @Num where Num<8
    Union All
    Select Patt=reverse(right('000'+cast((Num*100+Num*10+Num)+12 as varchar(5)),3)) from @Num where Num<8
2021-04-15