我怎樣才能顯示SQL字符串值的參數

Question

我已可以執行下面的腳本在SQL

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

Answer 1

你有你的as切換左右。這個名字來自最後

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

現在@StartYear和@EndYear也有可能不是CHAR/VARCHAR/NCHAR/nvarchar的，所以你需要將它們轉換。我將在這裏假設你的年份是一個4位整數。如果不是，你需要調整它。

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

Answer 2

我相信你想要的是這樣的，你在哪裏插入選定的行的值到最終的輸出？

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 

否則，您甚至不需要FROM或WHERE，因爲您將一遍又一遍地打印相同的東西。然後，我會建議：

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