Sql 我正在将以下oracle查询转换为bigquery，但结果记录计数不同

我正在将以下oracle查询转换为bigquery查询，但结果（记录计数）不同，尽管查询中涉及的基表在oracle和bq中具有相同数量的记录

神谕： BQ： 甲骨文计数-1553437 BQ计数-2414413

请帮助我了解如何在oracle和bq上获得相同的计数

谢谢，

---

Naren

如果您使用了更具可读性的缩写表格别名，则可以看出几个不同之处：

• Oracle不尝试任何

  右连接

• GBQ应该在

  WHERE

  中运行

  non-on-last
  LEFT-JOIN
  子句中的
  UPPER（…）
  表达式，或者将表达式移动到ui表上的
  内部JOIN
  （但未经测试可能不会产生影响，但可读性会有所不同）
  表顺序可能会有所不同，尤其是使用
  内部
  和
  外部
  联接时
  

Oracle（使用旧的、过时的隐式联接）

Google BigQuery（使用当前的显式联接标准）

---

<> P>因此，考虑表的顺序和适当的<代码>连接< /代码>，考虑下面的调整后的谷歌BigQue:

...
FROM
     `pearson-rr.GRDW_RPT.RMS_IMAGE_PROJECT_S_VW` p 
LEFT OUTER JOIN 
      `pearson-rr.oracle_grdw_grdw.rms_image_usage_info_s` ui 
   ON p.PROJECT_ID = ui.PROJECT_ID
INNER OUTER JOIN 
      `pearson-rr.oracle_grdw_grdw.rms_image_info_s` i
   ON ui.OBJECT_ID = i.OBJECT_ID AND UPPER(ui.USAGE_LABEL) NOT LIKE '%KILL%'
LEFT OUTER JOIN
      `pearson-rr.GRDW_RPT.BIC_APHEISBN00_BO_VW` b 
   ON p.PROJECT_ID = b._BIC_ZCHETIIS
LEFT OUTER JOIN
      `pearson-rr.oracle_grdw_grdw.ghepm_title` g 
   ON p.PROJECT_ID = g.ISBN10

SELECT
CAST(R_PROJECT_S.PROJECT_COPYRIGHT_YEAR AS string) COPYRIGHT_YEAR,
R_PROJECT_S.PROJECT_TITLE,
CAST(R_PROJECT_S.EDITION AS string) EDITION,
R_PROJECT_S.CIRCULATION_DESC,
R_PROJECT_S.DISTRIBUTION_DESC,
R_PROJECT_S.PROJECT_ID,
R_USAGE_INFO_S.OBJECT_ID,
UPPER(R_INFO_S.PHOTOGRAPHER) PHOTOGRAPHER,
UPPER(R_INFO_S.SOURCE_CAPTION) SOURCE_CAPTION,
BIC_APHEISBN00_BO._BIC_ZCHEAU,
BIC_APHEISBN00_BO._BIC_ZCHECPYR,
BIC_APHEISBN00_BO._BIC_ZCHEED,
BIC_APHEISBN00_BO._BIC_ZCHEPRDDE,
BIC_APHEISBN00_BO._BIC_ZCHEGRDE,
BIC_APHEISBN00_BO._BIC_ZCHSODE,
R_PROJECT_S.CHARGE_TO_ISBN,
BIC_APHEISBN00_BO._BIC_ZCHEPTIT,
R_INFO_S.SOURCE_NAME,
R_PROJECT_S.LANGUAGE_DESC,
R_PROJECT_S.PROJECT_FORMAT_DESC,
R_USAGE_INFO_S.USAGE_ID,
R_USAGE_INFO_S.PAGE,
R_USAGE_INFO_S.CHAPTER,
R_INFO_S.WORK_PROJECT_ID,
R_INFO_S.IMAGE_TYPE_DESC,
R_INFO_S.IMAGE_DESC,
R_USAGE_INFO_S.PERMISSION_TYPE_DESC,
R_USAGE_INFO_S.PERMISSION_STATUS_DESC,
R_USAGE_INFO_S.PERMISSION_USAGE_DESC,
R_USAGE_INFO_S.USAGE_LABEL,
R_USAGE_INFO_S.QUOTED_COST,
R_INFO_S.SOURCE_OBJECT_ID,
R_USAGE_INFO_S.USAGE_TYPE_DESC,
GHEPM_TITLE_PSPP.TITLE_DESCRIPTION,
BIC_APHEISBN00_BO._BIC_ZCHESOAB,
BIC_APHEISBN00_BO._BIC_ZCHEGRCD  
FROM
`domain-rr.oracle_DB_DB.R_info_s` R_INFO_S
inner join 
`domain-rr.oracle_DB_DB.R_usage_info_s` R_USAGE_INFO_S
on 
R_USAGE_INFO_S.OBJECT_ID=R_INFO_S.OBJECT_ID
right outer join
`domain-rr.DB_RPT.R_PROJECT_S_VW` R_PROJECT_S
on 
R_PROJECT_S.PROJECT_ID=R_USAGE_INFO_S.PROJECT_ID
left outer join
`domain-rr.DB_RPT.BIC_APHEISBN00_BO_VW` BIC_APHEISBN00_BO
ON
R_PROJECT_S.PROJECT_ID=BIC_APHEISBN00_BO._BIC_ZCHETIIS
left outer join
`domain-rr.oracle_DB_DB.ghepm_title` GHEPM_TITLE_PSPP
ON
R_PROJECT_S.PROJECT_ID=GHEPM_TITLE_PSPP.ISBN10
AND UPPER(R_USAGE_INFO_S.USAGE_LABEL)  NOT LIKE '%KILL%'

...
FROM
      GRDW.RMS_IMAGE_PROJECT_S_VW p,
      GRDW.RMS_IMAGE_USAGE_INFO_S ui,
      GRDW.RMS_IMAGE_INFO_S i,
      BOADMIN.BIC_APHEISBN00_BO_VW b,
      GRDW.GHEPM_TITLE g
WHERE
  ( p.PROJECT_ID = ui.PROJECT_ID(+)                      -- LEFT JOIN
  )
  AND  ( ui.OBJECT_ID = i.OBJECT_ID  )                   -- INNER JOIN
  AND  ( p.PROJECT_ID = b.BIC_ZCHETIIS(+) )              -- LEFT JOIN
  AND  ( p.PROJECT_ID = g.ISBN10(+)  )                   -- LEFT JOIN
  AND  UPPER(ui.USAGE_LABEL)  NOT LIKE  UNISTR('%KILL%')

...
FROM
      `pearson-rr.oracle_grdw_grdw.rms_image_info_s` i
INNER JOIN 
      `pearson-rr.oracle_grdw_grdw.rms_image_usage_info_s` ui 
   ON ui.OBJECT_ID = i.OBJECT_ID
RIGHT OUTER JOIN
      `pearson-rr.GRDW_RPT.RMS_IMAGE_PROJECT_S_VW` p 
   ON p.PROJECT_ID = ui.PROJECT_ID
LEFT OUTER JOIN
      `pearson-rr.GRDW_RPT.BIC_APHEISBN00_BO_VW` b 
   ON p.PROJECT_ID = b._BIC_ZCHETIIS
LEFT OUTER JOIN
      `pearson-rr.oracle_grdw_grdw.ghepm_title` g 
   ON p.PROJECT_ID = g.ISBN10
   AND UPPER(ui.USAGE_LABEL) NOT LIKE '%KILL%'

...
FROM
     `pearson-rr.GRDW_RPT.RMS_IMAGE_PROJECT_S_VW` p 
LEFT OUTER JOIN 
      `pearson-rr.oracle_grdw_grdw.rms_image_usage_info_s` ui 
   ON p.PROJECT_ID = ui.PROJECT_ID
INNER OUTER JOIN 
      `pearson-rr.oracle_grdw_grdw.rms_image_info_s` i
   ON ui.OBJECT_ID = i.OBJECT_ID AND UPPER(ui.USAGE_LABEL) NOT LIKE '%KILL%'
LEFT OUTER JOIN
      `pearson-rr.GRDW_RPT.BIC_APHEISBN00_BO_VW` b 
   ON p.PROJECT_ID = b._BIC_ZCHETIIS
LEFT OUTER JOIN
      `pearson-rr.oracle_grdw_grdw.ghepm_title` g 
   ON p.PROJECT_ID = g.ISBN10