Question

如何将我的列数与月份数转换为月份名称？

例如：

我有月份列，它有7,7 ，8,9但我希望它显示为7月，7月，8月，9月。

Answer 1

试试这个...

DECLARE @MonthNumber int
SET @MonthNumber = 1

SELECT DATENAME(MONTH, DATEADD(MONTH, @MonthNumber, '2017/12/31')) AS 'Month'

或者

SELECT DATENAME(MONTH, DATEADD(MONTH, yourColumnHere, '2017/12/31')) AS 'Month'

Answer 2

如果该列包含月份数的CSV，请尝试此操作（SQL_Server 2016）

DECLARE @t TABLE (
    Months_csv  NVARCHAR (15)
);
INSERT INTO @t
(
    Months_csv
)
VALUES
(
    N'7,7,8,9'
);

SELECT
    value
    ,[MonthName]=DATENAME(MONTH, DATEADD(MONTH, CAST(value AS INT), -1))
FROM
    @t  T
CROSS APPLY
    STRING_SPLIT(T.Months_csv, ',');

输出

value   MonthName
7       July
7       July
8       August
9       September

如果它不是CSV列表，请尝试此

DECLARE @t TABLE (
    Months_ int
);
INSERT INTO @t
(
    Months_
)
VALUES
(7),(7),(8),(9);

SELECT
    T.Months_
    ,[MonthName]=DATENAME(MONTH, DATEADD(MONTH, T.Months_, -1))
FROM
    @t  T

输出

Months_ MonthName
7       July
7       July
8       August
9       September

Answer 3

使用此Udf

   {{ form }}

结果

CREATE FUNCTION [dbo].[udf_GetMonthNAME]
(
@string nvarchar(max)
)
RETURNS  @OutTable TABLE
(
MonthNames nvarchar(max)
)
AS
BEGIN

    DECLARE @Temp AS TABLE
    (
    MonthNumber nvarchar(max)
    )
    INSERT INTO @Temp
    SELECT @string


    INSERT INTO @OutTable(MonthNames)
    SELECT STUFF((SELECT ', '+MonthNumber 
        FROM
        (
        SELECT DATENAME(MONTH,DATEADD(MONTH,MonthNumber-5,Getdate())) AS MonthNumber
        FROM
        (
        SELECT CAST(Split.a.value('.','nvarchar(max)') AS INT) AS MonthNumber
        FROM
        (
        SELECT CAST('<S>'+REPLACE(MonthNumber,',','</S><S>')+'</S>' AS XML ) AS MonthNumber
        FROM @Temp
        )AS A
        CROSS APPLY MonthNumber.nodes('S') AS Split(a)
        )fn
        )fnl FOR XML PATH ('')),1,1,'')


RETURN
END

SELECT * FROM [dbo].[udf_GetMonthNAME] ('7,7,8,9')
GO

将月号隐藏到月份名称

3 个答案: