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sql - 无法弄清楚 Access SQL 语法错误

转载 作者:行者123 更新时间:2023-12-04 21:37:51 26 4
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我正在尝试在 Microsoft Access SQL 中编写此查询,但我终究无法找出代码中的语法错误。

SELECT base.study_group, base.NPI,inv.log_date AS invite_date, rec.log_date as
recieved_date, rej.log_date as reject_date
FROM CODAAC_master AS base
LEFT JOIN Pre_Log AS inv ON base.NPI = inv.NPI AND inv.tracking_event='INVA'
LEFT JOIN Pre_Log AS rec ON base.NPI = rec.NPI AND rec.tracking_event='RECA'
LEFT JOIN Pre_Log AS rej ON base.NPI = rej.NPI AND rej.tracking_event='REJA'
WHERE base.study_year = '2013'
ORDER BY base.study_group, base.NPI;

我得到的错误是:

"Syntax error (missing operator) in query expression"

最佳答案

MS Access 需要用括号括住多个连接:

SELECT base.study_group, 
base.NPI,
inv.log_date AS invite_date,
rec.log_date as recieved_date,
rej.log_date as reject_date
FROM ((CODAAC_master AS base
LEFT JOIN Pre_Log AS inv
ON base.NPI = inv.NPI AND inv.tracking_event='INVA')
LEFT JOIN Pre_Log AS rec
ON base.NPI = rec.NPI AND rec.tracking_event='RECA')
LEFT JOIN Pre_Log AS rej
ON base.NPI = rej.NPI AND rej.tracking_event='REJA'
WHERE base.study_year = '2013'
ORDER BY base.study_group, base.NPI;

关于sql - 无法弄清楚 Access SQL 语法错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/15705375/

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