避免SQL查询中的group by子句中的列

Question

我有这个SP，正在尝试在Oracle目标表（11.2）中插入记录。这里在子查询中命名为“ a”，其中我有一个列PROJECT，这是子查询“ b”的连接条件之一，但是在这里，如果我将列“ project”放入，则无法获得预期的结果在子查询“ a”的group by子句中。

但是同时我需要引用与子查询'b'的连接条件之一相同的内容。

CREATE OR REPLACE PROCEDURE PROC1
AS
BEGIN
   INSERT INTO TARGET_TABLE
      SELECT a.SECT,
             a.REG,
             a.USRN,
             a.PRO_CT,
             a.CATG,
             a.TLT,
             a.SN_YR_MN,
             a.SN_YR,
             a.SN_MN,
             a.UNIQUE_ISSUES_CNT,
             a.FILES_SN_ISS_CT,
             b.TOT_FILES_SN_CT,
             b.TOT_SN_CT,
             CURRENT_DATE
        FROM (  SELECT SECT,
                       REG,
                       USRN,
                       PROJECT,
                       COUNT (DISTINCT CONCAT (PROJECT, SOLUTION)) PRO_CT,
                       CATG,
                       TLT,
                       SN_YR_MN,
                       SN_YR,
                       SN_MN,
                       COUNT (DISTINCT ISSUE_ID) UNIQUE_ISSUES_CNT,
                       COUNT (DISTINCT PATH) FILES_SN_ISS_CT
                  FROM table1
              GROUP BY SECT,
                       REG,
                       PROJECT,
                       USRN,
                       CATG,
                       TLT,
                       SN_YR_MN,
                       SN_YR,
                       SN_MN) a
             JOIN
             (  SELECT USRN,
                       PROJECT,
                       SECT,
                       REG,
                       SN_YR_MN,
                       SN_YR,
                       SN_MN,
                       COUNT (DISTINCT RPT_SCAN_SUMMARY.PATH) TOT_FILES_SN_CT,
                       COUNT (DISTINCT RPT_SCAN_SUMMARY.SCAN_ID) TOT_SN_CT
                  FROM table2
              GROUP BY USRN,
                       PROJECT,
                       SECT,
                       REG,
                       SN_YR_MN,
                       SN_YR,
                       PROJECT,
                       SN_MN) b
                ON     a.USRN = b.USRN
                   AND a.SECT = b.SECT
                   AND a.REG = b.REG
                   AND a.SN_YR_MN = b.SN_YR_MN
                   AND a.SN_YR = b.SN_YR
                   AND a.SN_MN = b.SN_MN
                   AND a.PROJECT = b.PROJECT;
END;