Question

我正在尝试这个

CAST(DATEDIFF(month,[patient_date_birth],getdate()) as varchar(10))+ 'month'

但没有工作!! 任何帮助，请

这是我的选择查询

SELECT study_patient_name+' '+study_patient_prenom as Patient,
    CASE 
        WHEN DATEDIFF(month,patient_date_birth,getdate()) > 12 THEN DATEDIFF(year,patient_date_birth,getdate()) 
        ELSE CAST(DATEDIFF(month,patient_date_birth,getdate()) as varchar )+ ' month' 
    END as Age 
from patient

Answer 1

这应该有效

CAST(DATEDIFF(month,CAST([patient_date_birth] AS DATE),getdate()) as varchar(10))+ ' month'

Answer 2

我犯的错误是我没有投出案例CAST(DATEDIFF(year,patient_date_birth,getdate()) as varchar)

的第一部分

Answer 3

您需要将CASE语句的两个元素都转换为varchar，因此无论是否＆＃39; month＆＃39;，结果始终为varchar。出现在结果中：

SELECT
'dave'+' '+'rave' as Patient,
'ENT' as Service,
CASE 
    WHEN DATEDIFF(month, '2015-02-25', getdate()) > 12 
    THEN CAST(DATEDIFF(year, '2015-02-25', getdate()) as varchar(10))
    ELSE CAST(DATEDIFF(month, '2015-02-25', getdate()) as varchar(10)) + ' month' 
END as Age

如何将整数与字符串连接起来

3 个答案: