Question

是否可以根据声明的变量使用条件where子句？

请注意：我的查询比这复杂得多，我只是用这个例子来简化。

类似的东西：

DECLARE @ITEST INT = 1

SELECT NAME, LNAME, CADDRESS
FROM JEEVEN
WHERE
CASE WHEN @ITEST = 1 THEN
(
    (EVEN_KEY > 5 AND EVEN_KEY < 10)
)
CASE WHEN @TEST = 2 THEN
(
    (EVEN_KEY > 20 AND EVEN_KEY < 30)
)

Answer 1

您正在寻找此

DECLARE @ITEST INT = 1

SELECT NAME, LNAME, CADDRESS
FROM JEEVEN
WHERE (@ITEST = 1 AND EVEN_KEY > 5 AND EVEN_KEY < 10)
   OR (@ITEST = 2 AND EVEN_KEY > 20 AND EVEN_KEY < 30)

SQL Server条件where子句基于声明的变量

1 个答案: