Determine if a date is active within a database?

Question

Hey all. I'm trying to figure out a way to determine for 10 days if there was an active service on each day.
The service history data I have to look at is like so:
CUST     ADDR     ACTN     DATE
1234     1234     IN       12/23/2007
1234     1234     READ     2/21/2008
1234     1234     READ     4/22/2008
1234     1234     OUT      6/23/2008
2345     1244     IN       3/6/2008
2345     1244     OUT      3/10/2008And what I want to do is determine if a customer was active from say 3/1/2008 - 3/10/2008. My current method was to query for dates on each day I'm trying to find out if service was active, and then building a string I can later run through a loop, but it seems like I'm making this way too complicated.
SELECT
      fq.CUST
      , fq.PREM
      , fq.SRAT
      , fq.PKUPDAY
      , fq.START_DAY
        || (DECODE(SUBSTR(fq.IN_DAYS,1,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,1,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,1,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,2,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,2,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,2,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,3,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,3,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,3,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,4,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,4,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,4,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,5,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,5,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,5,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,6,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,6,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,6,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,7,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,7,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,7,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,8,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,8,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,8,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,9,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,9,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,9,1),'O','O','X')))
        || (DECODE(SUBSTR(fq.IN_DAYS,10,1),'I',DECODE(SUBSTR(fq.OUT_DAYS,10,1),'O','O','I'),DECODE(SUBSTR(fq.OUT_DAYS,10,1),'O','O','X'))) SVC_MAP
    FROM
        SELECT
          bq.CUST
          , bq.PREM
          , bq.SRAT
              CASE WHEN (bq.D_IN1 IS NOT NULL AND bq.D_OUT1 IS NOT NULL AND bq.D_IN1 <= bq.D_OUT1) THEN 'O' ELSE
                CASE WHEN (bq.D_IN1 IS NOT NULL AND bq.D_OUT1 IS NOT NULL AND bq.D_IN1 > bq.D_OUT1) THEN 'I' ELSE
                  CASE WHEN (bq.D_IN1 IS NOT NULL AND bq.D_OUT1 IS NULL) THEN 'I' ELSE
                    CASE WHEN (bq.D_IN1 IS NULL AND bq.D_OUT1 IS NOT NULL) THEN 'O' ELSE
                      CASE WHEN (bq.D_IN1 IS NULL AND bq.D_OUT1 IS NULL) THEN 'X'
                      END
                    END
                  END
                END
              END
            ) START_DAY
              CASE WHEN bq.D_IN2 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN3 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN4 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN5 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN6 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN7 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN8 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN9 IS NOT NULL THEN 'I' ELSE 'X' END
              || CASE WHEN bq.D_IN10 IS NOT NULL THEN 'I' ELSE 'X' END
            ) IN_DAYS
              CASE WHEN bq.D_OUT2 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT3 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT4 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT5 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT6 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT7 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT8 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT9 IS NOT NULL THEN 'O' ELSE 'X' END
              || CASE WHEN bq.D_OUT10 IS NOT NULL THEN 'O' ELSE 'X' END
            ) OUT_DAYS
          , bq.PKUPDAY
        FROM
            SELECT /*+ INDEX (UIMSMGR_02.UCRSERV UCRSERV_SRAT_CODE_INDEX UCRSERV_KEY_INDEX) */
              db1.URRSHIS_CUST_CODE CUST
              , db2.UCRSERV_PREM_CODE PREM
              , db2.UCRSERV_SRAT_CODE SRAT
                  SELECT
                    MAX(sdb1.URRSHIS_ACTION_DATE)
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE <= TO_DATE('12/17/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN1
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/18/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/18/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN2
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/19/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/19/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN3
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/20/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/20/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN4
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/21/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/21/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN5
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/22/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/22/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN6
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/23/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/23/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN7
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/24/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/24/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN8
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/25/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/25/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN9
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'IN'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/26/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/26/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_IN10
                  SELECT
                    MAX(sdb1.URRSHIS_ACTION_DATE)
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE <= TO_DATE('12/17/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT1
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/18/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/18/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT2
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/19/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/19/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT3
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/20/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/20/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT4
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/21/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/21/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT5
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/22/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/22/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT6
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/23/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/23/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT7
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/24/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/24/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT8
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/25/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/25/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT9
                  SELECT
                    sdb1.URRSHIS_ACTION_DATE
                  FROM
                    URRSHIS sdb1
                  WHERE
                    sdb1.URRSHIS_ACTN_CODE = 'OUT'
                    AND sdb1.URRSHIS_CUST_CODE = db1.URRSHIS_CUST_CODE
                    AND sdb1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
                    AND sdb1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
                    AND sdb1.URRSHIS_STYP_CODE = 'GRES'
                    AND sdb1.URRSHIS_ACTION_DATE BETWEEN
                      TO_DATE('12/26/2007 00:00:00','mm/dd/yyyy hh24:mi:ss')
                      AND TO_DATE('12/26/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
                ) D_OUT10
              , (CASE WHEN db2.UCRSERV_DAY_SU IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_M IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_TU IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_W IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_TH IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_F IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_SA IS NOT NULL THEN 'P' ELSE 'X' END) PKUPDAY
            FROM
              URRSHIS db1
              , UCRSERV db2
            WHERE
              db2.UCRSERV_SRAT_CODE IN
                  SELECT
                    gr.UTVSRAT_CODE
                  FROM
                    UTVSRAT gr
                  WHERE
                      SUBSTR(gr.UTVSRAT_CODE,1,1) IN ('3','1')
                      AND SUBSTR(gr.UTVSRAT_CODE,-2) IN ('AB','BB','XB','AM','BM','XM')
                      OR
                      SUBSTR(gr.UTVSRAT_CODE,1,1) IN ('N','C')
                      AND gr.UTVSRAT_CODE != 'COFN'
              AND db1.URRSHIS_PREM_CODE = db2.UCRSERV_PREM_CODE
              AND db1.URRSHIS_SERV_NUM = db2.UCRSERV_NUM
              AND db1.URRSHIS_ACTION_DATE <= TO_DATE('12/26/2007 23:59:59','mm/dd/yyyy hh24:mi:ss')
              AND db1.URRSHIS_STYP_CODE = 'GRES'
            GROUP BY
              db1.URRSHIS_CUST_CODE
              , db2.UCRSERV_PREM_CODE
              , db2.UCRSERV_NUM
              , db2.UCRSERV_STATUS_IND
              , db2.UCRSERV_SRAT_CODE
              , (CASE WHEN db2.UCRSERV_DAY_SU IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_M IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_TU IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_W IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_TH IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_F IS NOT NULL THEN 'P' ELSE 'X' END)
                  || (CASE WHEN db2.UCRSERV_DAY_SA IS NOT NULL THEN 'P' ELSE 'X' END)
          ) bq
      ) fq

Answer 1

Okay, so there's a bit more detail needed to understand what I'm trying to output.
There are also seven additional columns in the database for each day of the week, to indicate which day the customer has items picked up by the company. Ex:
CUST ...     SU     M      TU     W      TH     F      SA
1234 ...     X
1223 ...                   XWhat I want to do is pull this information, and then determine if the customer had service during a set time period (ex: 3/1 - 3/10), and then also determine if they had service on the pickup date. The goal is to charge accounts based on if they had an active pickup date during the time period (as some accounts might have been opened on 3/8, but because of the day of the week their pickup is on, they didn't actually have any service during that time and shouldn't be charged).
So in the end I just want the Customer # for the ones that should be charged.