Question

我正在制作一个棒球投影系统，我正试图根据比赛开始有两种不同的公式。

这是我当前的错误：

错误1064（42000）：您的SQL语法有错误;查看与您的MySQL服务器版本对应的手册，以便在'附近使用正确的语法（ROUND（COALESCE（IP1,0）* .5 + COALESCE（IP2,0）* .1 + 60）） D（第6行的COALESCE（IP1,0）*'

这就是我的代码：

CREATE TABLE player_ip_2015
AS 
SELECT playerID
    ,CASE
        WHEN (b.GS > 5)
            THEN (ROUND( COALESCE(IP1,0) * .5 + COALESCE(IP2,0) * .1 + 60 ))
            ELSE (ROUND( COALESCE(IP1,0) * .5 + COALESCE(IP2,0) * .1 + 20 ))
            END
            AS IP
FROM (SELECT * FROM (SELECT DISTINCT playerID FROM pitching_pos) b
        LEFT JOIN (SELECT playerID AS playerID1, (IPOuts/3) AS IP1 FROM pitching_pos
                WHERE yearID = "2014") b1
                ON b.playerID = b1.playerID1
        LEFT JOIN (SELECT playerID AS playerID2, (IPOuts/3) AS IP2 FROM pitching_pos
                WHERE yearID = "2013") b2
                ON b.playerID = b2.playerID2) b
GROUP BY playerID
ORDER BY IP DESC;

Answer 1

您在(之前打开Case并且您永远不会关闭它你应该删除(（或在End

之后关闭它）

Answer 2

IP1的价值是多少？其次，您对问题的标题与您报告的错误不符。第三，你还有一个额外的（在声明的FROM部分。

检查您的代码。

案例陈述的MySQL语法错误

2 个答案: