我怎样才能显示SQL字符串值的参数

Question

我已可以执行下面的脚本在SQL

Select Year as ' years between ' + @StartYear + '-' + @EndYear + ' value ' 
from tblYears 
where Year Between @StartYear and @EndYear 

Answer 1

你有你的as切换左右。这个名字来自最后

Select 'years between ' + @StartYear + '-' + @EndYear + ' value ' AS Year 
from tblYears 
where Year Between @StartYear and @EndYear 

现在@StartYear和@EndYear也有可能不是CHAR/VARCHAR/NCHAR/nvarchar的，所以你需要将它们转换。我将在这里假设你的年份是一个4位整数。如果不是，你需要调整它。

Select 'years between ' + convert(char(4), @StartYear) + '-' + convert(char(4), @EndYear) + ' value ' AS Year 
from tblYears 
where Year Between @StartYear and @EndYear 

Answer 2

我相信你想要的是这样的，你在哪里插入选定的行的值到最终的输出？

SELECT CONVERT(CHAR(4), Year) + ' year is between ' 
    + CONVERT((CHAR(4),@StartYear) +'-'+ CONVERT((CHAR(4),@EndYear) + ' values.' 
FROM tblYears 
WHERE Year BETWEEN @StartYear AND @EndYear 

否则，您甚至不需要FROM或WHERE，因为您将一遍又一遍地打印相同的东西。然后，我会建议：

SELECT ' years between ' + CONVERT((CHAR(4),@StartYear) + '-' 
    + CONVERT((CHAR(4),@EndYear) + ' value'