Question

在mysql中运行以下查询时，它的工作正常。

SELECT
     a.feed_date, a.partner_name,
     SUM(a.count) as InputCount,
     SUM(CASE when (b.count is null) then 0 else b.count end) as OutputCount
FROM
 (SELECT year,week,partner_name, feed_date, count
  FROM op_dev.op_stats
  WHERE partner_name IN ('xyz, INC.','abc')
     AND mkt_elig_cd='Y'
     AND rel_grp_type_no='00000'
     AND feed_type='SellerChar') AS A
 LEFT OUTER JOIN
  (SELECT year,week,feed_date, partner_name, count
   FROM opt_dev.op_stats
   WHERE partner_name IN ('xyz, INC.','abc')
     AND mkt_elig_cd='Y'
     AND rel_grp_type_no='00000'
     AND feed_type='MSF') AS B
 ON A.partner_name = B.partner_name
   AND A.year=B.year
   AND A.week=B.week
GROUP BY A.week,A.year;

但是，当我使用相同的查询字符串并通过Java代码调用它时，它会给我以下错误：

java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0).

有人可以帮我指出造成这个问题的原因。

Answer 1

看起来你试图执行查询并指定参数（检查java和hibernate），但查询没有参数。

Answer 2

GROUP BY子句必须包含选定的列。如果未选择任何列，则GROUP BY子句可以使用任何列。你可以试试这个：

SELECT partner_name, feed_date,
     SUM(CASE WHEN feed_type='SellerChar' THEN count ELSE 0 END) OVER(PARTITION BY year,week,feed_type) AS InputCount,
     SUM(CASE WHEN feed_type='MSF' THEN count ELSE 0 END) OVER(PARTITION BY year,week,feed_type) AS OutputCount
FROM op_dev.op_stats
WHERE partner_name IN ('xyz, INC.','abc')
     AND mkt_elig_cd='Y'
     AND rel_grp_type_no='00000'
     AND (feed_type='SellerChar' OR feed_type='MSF')

参数索引超出范围（1>参数个数，为0）。 Mysql vs Java

2 个答案: