語法錯誤使用where子句

Question

類似的問題已經被問here

情況下無論如何，我得到一個語法錯誤我想不通。

這是我的代碼：

declare @MyParameter integer 
se @MyParameter = Set At Runtime (could be -1 or any value >=1) 

SELECT manyfields FROM manyjoinedtables 
where 
case when @MyParameter> -1 then 
(FIELD1 **=** @MyParameter AND ANOTHERFIELD = Value**)** 
end -- note: in case @MyParameter = -1 i do not want to add where condition 

反正Management Studio中強調紅色2個字符包圍**以上。

爲什麼？語法錯誤在哪裏？

Answer 1

給這一去;

DECLARE @MyParameter INT 
SET @MyParameter = Set At Runtime (could be -1 or any value >=1) 

SELECT manyfields 
FROM manyjoinedtables 
WHERE 
    @MyParameter <= -1 
OR 
(
    @MyParameter > -1 
    AND FIELD1 = MyParameter 
    AND AnotherField = Value 
)