为什么我的查询失败，SQLCODE = -420？
[英]Why is my query failing with SQLCODE = -420?
问题描述
Can I get some help with this?
我能得到一些帮助吗？ I'll copy the code as well as the error.我将复制代码以及错误。 I looked up the error code我查了一下错误代码
(DB2 SQL Error: SQLCODE=-420, SQLSTATE=22018, SQLERRMC=BOOLEAN)
but I'm not understanding what doesn't meet the requirements of the function?但我不明白什么不符合功能要求？ I'm just trying to pull these tables, rename ACH_ORIGINATION.DESCRIPTION when it meets certain requirements, and then filter out the ones that don't meet the requirements.我只是想拉出这些表，在满足某些要求时重命名ACH_ORIGINATION.DESCRIPTION ，然后过滤掉不符合要求的表。 I also want to group by DESCRIPTION but I'd like to get this portion working first.我也想按描述分组，但我想先让这部分工作。
SELECT
ACH_ORIGINATION.COMPANY_SERIAL,
ACH_ORIGINATION.NAME,
ACH_ORIGINATION.AMOUNT,
ACH_ORIGINATION.NEXT_POSTING_DATE,
CASE ACH_ORIGINATION.DESCRIPTION
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%J & J%' THEN 'J & J Electric'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%DeCleene%' THEN 'DeCleene'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Arab%' THEN 'Arab'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Clifford%' THEN 'Clifford Signs'
ELSE 'Nothing'
END AS DESCRIPTION
FROM
CORE.ACH_ORIGINATION AS ACH_ORIGINATION
WHERE
ACH_ORIGINATION.NEXT_POSTING_DATE IS NOT NULL AND
DESCRIPTION <> 'Nothing'
Error:错误：
net.sf.jasperreports.engine.JRException: net.sf.jasperreports.engine.JRRuntimeException: net.sf.jasperreports.engine.JRException: Error executing SQL statement for : ACH32Origination32Report_TableDataset_1579792666108_134237 at com.jaspersoft.studio.editor.preview.view.control.ReportControler.fillReport(ReportControler.java:466) at com.jaspersoft.studio.editor.preview.view.control.ReportControler.access$18(ReportControler.java:441) at com.jaspersoft.studio.editor.preview.view.control.ReportControler$4.run(ReportControler.java:333) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) Caused by: net.sf.jasperreports.engine.JRRuntimeException: net.sf.jasperreports.engine.JRException: Error executing SQL statement for : ACH32Origination32Report_TableDataset_1579792666108_134237 at net.sf.jasperreports.engine.fill.JRFillSubreport.prepare(JRFillSubreport.java:809) at net.sf.jasperreports.components.table.fill.FillTableSubreport.prepareSubreport(FillTableSubreport.java:156) at net.sf.
2 个解决方案
解决方案1
2 已采纳 2020-01-23 15:38:58
Per comments, fix the CASE expression like this:根据评论，像这样修复 CASE 表达式：
CASE WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%J & J%' THEN 'J & J Electric'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%DeCleene%' THEN 'DeCleene'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Arab%' THEN 'Arab'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Clifford%' THEN 'Clifford Signs'
ELSE 'Nothing'
END AS DESCRIPTION
解决方案2
0 2020-01-24 05:56:41
Actually, it's better to post a new question, if your original problem is resolved, and now you have a new problem...其实，如果你原来的问题解决了，现在又出现了新问题，最好再发一个新问题……
Multiple problems with GROUP BY . GROUP BY存在多个问题。 You may run the query below to play with expressions.您可以运行下面的查询来使用表达式。
1) You must use some aggregate function on a column which is not presented in the GROUP BY list, but used in the SELECT list. 1) 您必须在未出现在GROUP BY列表中但在SELECT列表中使用的列上使用某些聚合函数。 If you uncomment the 1-st line commented out, and comment out the next line (with MAX function), you get SQLCODE=-119.如果取消注释第一行的注释，并注释掉下一行（使用MAX函数），则会得到 SQLCODE=-119。
2) Unanticipated / wrong expression in the GROUP BY clause. 2) GROUP BY子句中的意外/错误表达。
You should use the same case expression in the group by clause, and not the original DESCRIPTION column.您应该在group by子句中使用相同的case表达式，而不是原始的DESCRIPTION列。 If you uncomment commented out --DESCRIPTION line and comment out the CASE expression in the GROUP BY list, you may "suddenly" realize, that you get 2 groups with the same value in the DESCRIPTION column.如果您取消注释掉的--DESCRIPTION行并注释掉GROUP BY列表中的CASE表达式，您可能会“突然”意识到，您会在DESCRIPTION列中得到 2 个具有相同值的组。 This is because of you group by the original value in DESCRIPTION first and process the group value in the CASE expression afterwards.这是因为您首先按DESCRIPTION的原始值分组，然后再处理CASE表达式中的组值。
SELECT
--ACH_ORIGINATION.NEXT_POSTING_DATE,
MAX(ACH_ORIGINATION.NEXT_POSTING_DATE) AS NEXT_POSTING_DATE,
CASE
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%J & J%' THEN 'J & J Electric'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%DeCleene%' THEN 'DeCleene'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Arab%' THEN 'Arab'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Clifford%' THEN 'Clifford Signs'
ELSE 'Nothing'
END AS DESCRIPTION
, COUNT(1) CNT
FROM
(
VALUES
(CURRENT DATE - 1, 'Arab1')
, (CURRENT DATE - 2, 'Arab2')
) ACH_ORIGINATION (NEXT_POSTING_DATE, DESCRIPTION)
WHERE
ACH_ORIGINATION.NEXT_POSTING_DATE IS NOT NULL AND
DESCRIPTION <> 'Nothing'
GROUP BY
--DESCRIPTION
CASE
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%J & J%' THEN 'J & J Electric'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%DeCleene%' THEN 'DeCleene'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Arab%' THEN 'Arab'
WHEN ACH_ORIGINATION.DESCRIPTION LIKE '%Clifford%' THEN 'Clifford Signs'
ELSE 'Nothing'
END
;
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