How to reduce the size of the query

Question

Hi all,
Can any one suggest me how to reduce the size of the following query .
/* Formatted on 2011/07/12 11:02 (Formatter Plus v4.8.8) */
SELECT prs.pa_rqst_srvc_sid,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5031'
AND ped.aaa_segment_loop_nmbr = '2000F') revenue_iid,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5013'
AND ped.aaa_segment_loop_nmbr = '2000F') x12_code_list_qlfr_lkpcd,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5026'
AND ped.aaa_segment_loop_nmbr = '2000F') procedure_iid,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5027'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5028'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr2_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5029'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr3_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5030'
AND ped.aaa_segment_loop_nmbr = '2000F') mdfr4_code,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5014'
AND ped.aaa_segment_loop_nmbr = '2000F') rqst_prcdr_amt,
(SELECT prpre.erroneous_data_value
FROM pa_error pe,
pa_error_detail ped,
pa_request_procedure_run_error prpre
WHERE pe.pa_error_sid = ped.pa_error_sid
AND ped.pa_error_sid = prpre.pa_error_sid
AND ped.oprtnl_flag = 'A'
AND prpre.oprtnl_flag = 'A'
AND prpre.pa_rqst_prcdr_sid = prp.pa_rqst_prcdr_sid
AND pe.pa_error_nmbr = '5015'
AND ped.aaa_segment_loop_nmbr = '2000F') srvc_line_rate,
'NA' drug_desc, 'NA' product_service_id, 'NA' uom_code,
'NA' rqst_prcdr_units
FROM pa_transaction_request ptr,
input_acknwldgmnt ia,
input_batch_file ibf,
pa_request pr,
pa_request_service prs,
pa_request_procedure prp
WHERE ptr.input_acknwldgmnt_sid = ia.input_acknwldgmnt_sid
AND ia.input_batch_file_sid = ibf.input_batch_file_sid
AND ptr.pa_trnsctn_rqst_sid = pr.pa_trnsctn_rqst_sid
AND pr.pa_rqst_sid = prs.pa_rqst_sid
AND prs.pa_rqst_srvc_sid = prp.pa_rqst_srvc_sid
AND pr.oprtnl_flag = 'A'
AND prs.oprtnl_flag = 'A'
AND ptr.oprtnl_flag = 'A'
AND prp.oprtnl_flag = 'A'
AND prs.rqst_ctgry_lkpcd = 'AR'
AND ibf.original_file_name = 'HIPAA.165760000.20110613I001.278_IRej.dat';
Thanks,
P Prakash

Answer 1

Hi,
Maybe like that, but keep in mind that it is highly untested_ :SELECT
  prs.pa_rqst_srvc_sid,
  pvt.c5031 revenue_iid,
  pvt.c5013 x12_code_list_qlfr_lkpcd,
  pvt.c5026 procedure_iid,
  pvt.c5027 mdfr_code,
  pvt.c5028 mdfr2_code,
  pvt.c5029 mdfr3_code,
  pvt.c5030 mdfr4_code,
  pvt.c5014 rqst_prcdr_amt,
  pvt.c5015 srvc_line_rate,
  srvc_line_rate,
  'NA' drug_desc,
  'NA' product_service_id,
  'NA' uom_code,
  'NA' rqst_prcdr_units
FROM
  pa_transaction_request ptr,
  input_acknwldgmnt ia,
  input_batch_file ibf,
  pa_request pr,
  pa_request_service prs,
  pa_request_procedure prp,
    SELECT
      prpre.pa_rqst_prcdr_sid,
      MAX(DECODE(pa_error_nmbr,'5013',prpre.erroneous_data_value,NULL)) c5013,
      MAX(DECODE(pa_error_nmbr,'5014',prpre.erroneous_data_value,NULL)) c5014,
      MAX(DECODE(pa_error_nmbr,'5015',prpre.erroneous_data_value,NULL)) c5015,
      MAX(DECODE(pa_error_nmbr,'5026',prpre.erroneous_data_value,NULL)) c5026,
      MAX(DECODE(pa_error_nmbr,'5027',prpre.erroneous_data_value,NULL)) c5027,
      MAX(DECODE(pa_error_nmbr,'5028',prpre.erroneous_data_value,NULL)) c5028,
      MAX(DECODE(pa_error_nmbr,'5029',prpre.erroneous_data_value,NULL)) c5029,
      MAX(DECODE(pa_error_nmbr,'5030',prpre.erroneous_data_value,NULL)) c5030,
      MAX(DECODE(pa_error_nmbr,'5031',prpre.erroneous_data_value,NULL)) c5031
    FROM
      pa_error pe,
      pa_error_detail ped,
      pa_request_procedure_run_error prpre
    WHERE
      pe.pa_error_sid     = ped.pa_error_sid
    AND ped.pa_error_sid  = prpre.pa_error_sid
    AND ped.oprtnl_flag   = 'A'
    AND prpre.oprtnl_flag = 'A'
    AND pe.pa_error_nmbr IN ('5013','5014','5015','5026','5027','5028','5029',
      '5030','5031')
    AND ped.aaa_segment_loop_nmbr = '2000F'
    GROUP BY
      prpre.pa_rqst_prcdr_sid
  pvt
WHERE
  pvt.pa_rqst_prcdr_sid       = prp.pa_rqst_prcdr_sid
AND ptr.input_acknwldgmnt_sid = ia.input_acknwldgmnt_sid
AND ia.input_batch_file_sid   = ibf.input_batch_file_sid
AND ptr.pa_trnsctn_rqst_sid   = pr.pa_trnsctn_rqst_sid
AND pr.pa_rqst_sid            = prs.pa_rqst_sid
AND prs.pa_rqst_srvc_sid      = prp.pa_rqst_srvc_sid
AND pr.oprtnl_flag            = 'A'
AND prs.oprtnl_flag           = 'A'
AND ptr.oprtnl_flag           = 'A'
AND prp.oprtnl_flag           = 'A'
AND prs.rqst_ctgry_lkpcd      = 'AR'
AND ibf.original_file_name    = 'HIPAA.165760000.20110613I001.278_IRej.dat';Edited by: Nicosa on Jul 12, 2011 2:20 PM
Corrected columns aliases in outer query :
- c5031 instead of 5031
- c5013 instead of 5013