'@starttimestamp'附近语法不正确。期待SELECT或（

Question

我在做什么错在这里？

Declare @starttimestamp datetime = getdate(); 
RAISERROR(N'Code not valid until %s', 16, 1, CAST(@starttimestamp AS VARCHAR)); 

产生一个错误说Incorrect syntax near 'CAST'.和Incorrect syntax near '@starttimestamp'. Expecting SELECT or (

Answer 1

不能raiserror命令内执行的功能。将您的日期一个字符串第一个，像这样：

Declare @starttimestamp datetime = getdate(), 
     @TextDate char(19) 
select @TextDate = convert(char(19),@starttimestamp,120) 

RAISERROR(N'Code not valid until %s', 16, 1, @TextDate) 

Answer 2

Declare @starttimestamp varchar(20) = cast(getdate() as varchar(20)); 
RAISERROR(N'Code not valid until %s', 16, 1, @starttimestamp);