sqlsever t-sql判断输入的数字重复出现的次数

利用一个存储过程

代码如下

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ALTER PROC NumShowTimes
(
@numValue NVARCHAR(MAX)
)
AS
BEGIN
    DECLARE @TempTable TABLE(num NVARCHAR(4))---定义存放数字的表
    DECLARE @TempNum NVARCHAR(4) --
    DECLARE @Value nvarchar(max)
    SET @Value = @numValue
    ---判断输入的是否是数字
    WHILE(LEN(@numValue)>0)
        BEGIN
            SET @TempNum=SUBSTRING(@numValue,LEN(@numValue),1)
            SET @numValue=SUBSTRING(@numValue,1,(LEN(@numValue)-1))
            IF @TempNum LIKE'[^0-9]'
                BEGIN
                    PRINT 'YOU INPUT NOT NUM'
                    RETURN
                END
        END
    ----获取数据插入表中
    WHILE(LEN(@Value)>0)
        BEGIN
            SET @TempNum=SUBSTRING(@Value,LEN(@Value),1)
            SET @Value=SUBSTRING(@Value,1,(LEN(@Value)-1))
            INSERT INTO @TempTable VALUES (@TempNum)
        END
    SELECT num,count(num)AS [count] FROM @TempTable GROUP BY num
END

去掉判断输入的是否是数字那个while循环，就显示所输入的所字符出现的次数，包括汉字

SQL利用Case When Then Else End 多条件判断以指定的次数重复字符（生成当天最大顺序编号）

代码如下

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Select

Case

When a is not null then a

When b is not null then b

When c is not null then c

When d is not null then d

Else ''

End 列名

From Table Name

SQL利用Case When Then多条件判断

代码如下

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Select top 100 State,JoinState,
(case

when State=1 and Joinstate=0 then 2

when State=1 and JoinState=1 then 1

else 0

end )

as usestate

from UserInfo

（生成当天最大顺序编号）

select substring(convert(varchar(8), getdate(), 112), 1, 8)

+'568'

+ replicate('0', 4-len(max_ContractNo)) --以指定的次数重复字符表达式

+ cast(max_ContractNo as varchar(4))

from (select

case

when substring(max(My_ContractNo), 12, 4) is null then '1'

else cast(cast(substring(max(My_ContractNo), 12, 4) as bigint) + 1 as varchar(8))

end max_ContractNo

from UserContractNo

WHERE datediff(Day,Adddate,getdate())=0

) s

CREATE TABLE [UserContractNo](

[Id] [int] IDENTITY(1,1) NOT NULL,

[ApplyUserDetailID] [int] NOT NULL,

[My_ContractNo] [varchar](50) COLLATE Chinese_PRC_CI_AS NOT NULL CONSTRAINT [DF_UserContractNo_My_ContractNo] DEFAULT (''),

[AddDate] [datetime] NOT NULL CONSTRAINT [DF_UserContractNo_AddDate] DEFAULT (getdate()),

[Remarks] [varchar](50) COLLATE Chinese_PRC_CI_AS NOT NULL CONSTRAINT [DF_UserContractNo_Remarks] DEFAULT (''),

CONSTRAINT [PK_UserContractNo] PRIMARY KEY CLUSTERED

([Id] ASC) ON [PRIMARY]

) ON [PRIMARY]

补充：数据库,Mssql