Sql query to update record?

hi1
i have 1000 rows in my table that are not unique. i have added a new column named sno.initially that contains null values. Now i want to update the table with sno contains serial no. from 1 to 1000 in a single SQL query
please help
Thanks
Harinder

hi1
i have 1000 rows in my table that are not unique. i
have added a new column named sno.initially that
contains null values. Now i want to update the table
with sno contains serial no. from 1 to 1000 in a
single SQL query
please help
Thanks
HarinderIt will work..
Update <table_name> set <column_name> = ROWNUM
whether the records are duplicate or not...

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Sql query - Selecting last recorded values for each date in specified period

Hello,
Can someone please help me with my problem.
I'm trying to get last recorded balance for each day for specific box (1 or 2) in specified period of days from ms access database using ADOTool.
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CharlesRoos wrote:
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Oracle 10g SELECT-query executes ca 10 seconds and contains Joins over multiple tables in on database conenction.
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I have the explain plan for a sql stmt.Require your suggestions to improve this.
PLAN_TABLE_OUTPUT
| Id | Operation                            | Name                         | Rows | Bytes | Cost |
|   0 | SELECT STATEMENT                     |                              |   340 |   175K| 19075 |
|   1 | TEMP TABLE TRANSFORMATION           |                              |       |       |       |
|   2 |   LOAD AS SELECT                     |                              |       |       |       |
|   3 |    SORT GROUP BY                     |                              |    32M| 1183M|   799K|
|   4 |     TABLE ACCESS FULL                | CLM_DETAIL_PRESTG            |   135M| 4911M|   464K|
|   5 |   LOAD AS SELECT                     |                              |       |       |       |
|   6 |    TABLE ACCESS FULL                 | CLM_HEADER_PRESTG            |     1 |   274 |   246K|
PLAN_TABLE_OUTPUT
|   7 |   LOAD AS SELECT                     |                              |       |       |       |
|   8 |    SORT UNIQUE                       |                              |   744K|    85M| 8100 |
|   9 |     TABLE ACCESS FULL                | DAILY_PROV_PRESTG            |   744K|    85M| 1007 |
| 10 |   UNION-ALL                          |                              |       |       |       |
| 11 |    SORT UNIQUE                       |                              |   177 | 97350 | 9539 |
| 12 |     HASH JOIN                        |                              |   177 | 97350 | 9538 |
| 13 |      HASH JOIN OUTER                 |                              |     3 | 1518 | 9533 |
| 14 |       HASH JOIN                      |                              |     1 |   391 | 8966 |
| 15 |        TABLE ACCESS BY INDEX ROWID   | CLM_DETAIL_PRESTG            |     1 |    27 |     3 |
| 16 |         NESTED LOOPS                 |                              |     1 |   361 |    10 |
| 17 |          NESTED LOOPS OUTER          |                              |     1 |   334 |     7 |
PLAN_TABLE_OUTPUT
| 18 |           NESTED LOOPS OUTER         |                              |     1 |   291 |     4 |
| 19 |            VIEW                      |                              |     1 |   259 |     2 |
| 20 |             TABLE ACCESS FULL        | SYS_TEMP_0FD9D66C9_DA2D01AD |     1 |   269 |     2 |
| 21 |            INDEX RANGE SCAN          | CLM_PAYMNT_CLMEXT_PRESTG_IDX |     1 |    32 |     2 |
| 22 |           TABLE ACCESS BY INDEX ROWID| CLM_PAYMNT_CHKEXT_PRESTG     |     1 |    43 |     3 |
| 23 |            INDEX RANGE SCAN          | CLM_PAYMNT_CHKEXT_PRESTG_IDX |     1 |       |     2 |
| 24 |          INDEX RANGE SCAN            | CLM_DETAIL_PRESTG_IDX        |     6 |       |     2 |
| 25 |        VIEW                          |                              |    32M|   934M| 8235 |
| 26 |         TABLE ACCESS FULL            | SYS_TEMP_0FD9D66C8_DA2D01AD |    32M|   934M| 8235 |
| 27 |       VIEW                           |                              |   744K|    81M|   550 |
| 28 |        TABLE ACCESS FULL             | SYS_TEMP_0FD9D66CA_DA2D01AD |   744K|    81M|   550 |
PLAN_TABLE_OUTPUT
| 29 |      TABLE ACCESS FULL               | CCP_MBRSHP_XREF              | 5288 |   227K|     5 |
| 30 |    SORT UNIQUE                       |                              |   163 | 82804 | 9536 |
| 31 |     HASH JOIN                        |                              |   163 | 82804 | 9535 |
| 32 |      HASH JOIN OUTER                 |                              |     3 | 1437 | 9530 |
| 33 |       HASH JOIN                      |                              |     1 |   364 | 8963 |
| 34 |        NESTED LOOPS OUTER            |                              |     1 |   334 |     7 |
| 35 |         NESTED LOOPS OUTER           |                              |     1 |   291 |     4 |
| 36 |          VIEW                        |                              |     1 |   259 |     2 |
| 37 |           TABLE ACCESS FULL          | SYS_TEMP_0FD9D66C9_DA2D01AD |     1 |   269 |     2 |
| 38 |          INDEX RANGE SCAN            | CLM_PAYMNT_CLMEXT_PRESTG_IDX |     1 |    32 |     2 |
| 39 |         TABLE ACCESS BY INDEX ROWID | CLM_PAYMNT_CHKEXT_PRESTG     |     1 |    43 |     3 |
PLAN_TABLE_OUTPUT
| 40 |          INDEX RANGE SCAN            | CLM_PAYMNT_CHKEXT_PRESTG_IDX |     1 |       |     2 |
| 41 |        VIEW                          |                              |    32M|   934M| 8235 |
| 42 |         TABLE ACCESS FULL            | SYS_TEMP_0FD9D66C8_DA2D01AD |    32M|   934M| 8235 |
| 43 |       VIEW                           |                              |   744K|    81M|   550 |
| 44 |        TABLE ACCESS FULL             | SYS_TEMP_0FD9D66CA_DA2D01AD |   744K|    81M|   550 |
| 45 |      TABLE ACCESS FULL               | CCP_MBRSHP_XREF              | 5288 |   149K|     5 |
The CLM_DETAIL_PRESTG table has 100 million records and the CLM_HEADER_PRESTG table has 75 million records.
Any gussestions on how to getch huge records from tables of this size will help.
Regards,
Narayan

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MIN (FIRST_SRVC_DT) AS FIRST_SRVC_DT,
MAX (LAST_SRVC_DT) AS LAST_SRVC_DT,
MIN (PLC_OF_SRVC_CD) AS PLC_OF_SRVC_CD
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SBCR_ID,
MBR_ID,
MBR_FIRST_NAME,
MBR_MI,
MBR_LAST_NAME,
MBR_BIRTH_DATE,
GENDER_TYPE_CD,
SBCR_RLTNSHP_TYPE_CD,
SBCR_FIRST_NAME,
SBCR_MI,
SBCR_LAST_NAME,
SBCR_ADDR_LINE_1,
SBCR_ADDR_LINE2,
SBCR_ADDR_CITY,
SBCR_ADDR_STATE,
SBCR_ZIP_CD,
PRVDR_NUM,
CLM_PRCSSD_DT,
CLM_TYPE_CLASS_CD,
AUTHO_NUM,
TOT_BILLED_AMT,
HCFA_DRG_TYPE_CD,
FCLTY_ADMIT_DT,
ADMIT_TYPE,
DSCHRG_STATUS_CD,
FILE_BILLING_NPI,
CLAIM_LOCATION_CD,
CLM_RELATED_ICN_1,
SBCR_ID||0
|| MBR_ID
|| GENDER_TYPE_CD
|| SBCR_RLTNSHP_TYPE_CD
|| MBR_BIRTH_DATE
AS MBR_ENROLL_ID,
SUBSCR_INSGRP_NM ,
CAC,
PRVDR_PTNT_ACC_ID,
BILL_TYPE,
PAYEE_ASSGN_CODE,
CREAT_RUN_CYC_EXEC_SK,
PRESTG_INSRT_DT
FROM CCP_STG.CLM_HEADER_PRESTG P WHERE ACT_CD <>'D' AND SUBSTR(CLM_PRCSS_TYPE_CD,4,1) NOT IN ('1','2','3','4','5','6') ),
PROV AS ( SELECT DISTINCT
PROV_ID,
PROV_FST_NM,
PROV_MD_NM,
PROV_LST_NM,
PROV_BILL_ADR1,
PROV_BILL_CITY,
PROV_BILL_STATE,
PROV_BILL_ZIP,
CASE WHEN PROV_SEC_ID_QL='E' THEN PROV_SEC_ID
ELSE NULL
END AS PROV_SEC_ID,
PROV_ADR1,
PROV_CITY,
PROV_STATE,
PROV_ZIP
FROM CCP_STG.DAILY_PROV_PRESTG),
MBR_XREF AS (SELECT SUBSTR(MBR_ENROLL_ID,1,17)||DECODE ((SUBSTR(MBR_ENROLL_ID,18,1)),'E','1','S','2','D','3')||SUBSTR(MBR_ENROLL_ID,19) AS MBR_ENROLLL_ID,
NEW_MBR_FLG
FROM CCP_STG.CCP_MBRSHP_XREF)
SELECT DISTINCT CLAIM_HDR.ICN_NUM AS ICN_NUM,
CLAIM_HDR.SBCR_ID AS SBCR_ID,
CLAIM_HDR.MBR_ID AS MBR_ID,
CLAIM_HDR.MBR_FIRST_NAME AS MBR_FIRST_NAME,
CLAIM_HDR.MBR_MI AS MBR_MI,
CLAIM_HDR.MBR_LAST_NAME AS MBR_LAST_NAME,
CLAIM_HDR.MBR_BIRTH_DATE AS MBR_BIRTH_DATE,
CLAIM_HDR.GENDER_TYPE_CD AS GENDER_TYPE_CD,
CLAIM_HDR.SBCR_RLTNSHP_TYPE_CD AS SBCR_RLTNSHP_TYPE_CD,
CLAIM_HDR.SBCR_FIRST_NAME AS SBCR_FIRST_NAME,
CLAIM_HDR.SBCR_MI AS SBCR_MI,
CLAIM_HDR.SBCR_LAST_NAME AS SBCR_LAST_NAME,
CLAIM_HDR.SBCR_ADDR_LINE_1 AS SBCR_ADDR_LINE_1,
CLAIM_HDR.SBCR_ADDR_LINE2 AS SBCR_ADDR_LINE2,
CLAIM_HDR.SBCR_ADDR_CITY AS SBCR_ADDR_CITY,
CLAIM_HDR.SBCR_ADDR_STATE AS SBCR_ADDR_STATE,
CLAIM_HDR.SBCR_ZIP_CD AS SBCR_ZIP_CD,
CLAIM_HDR.PRVDR_NUM AS PRVDR_NUM,
CLAIM_HDR.CLM_PRCSSD_DT AS CLM_PRCSSD_DT,
CLAIM_HDR.CLM_TYPE_CLASS_CD AS CLM_TYPE_CLASS_CD,
CLAIM_HDR.AUTHO_NUM AS AUTHO_NUM,
CLAIM_HDR.TOT_BILLED_AMT AS TOT_BILLED_AMT,
CLAIM_HDR.HCFA_DRG_TYPE_CD AS HCFA_DRG_TYPE_CD,
CLAIM_HDR.FCLTY_ADMIT_DT AS FCLTY_ADMIT_DT,
CLAIM_HDR.ADMIT_TYPE AS ADMIT_TYPE,
CLAIM_HDR.DSCHRG_STATUS_CD AS DSCHRG_STATUS_CD,
CLAIM_HDR.FILE_BILLING_NPI AS FILE_BILLING_NPI,
CLAIM_HDR.CLAIM_LOCATION_CD AS CLAIM_LOCATION_CD,
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CLAIM_HDR.CAC,
CLAIM_HDR.PRVDR_PTNT_ACC_ID,
CLAIM_HDR.BILL_TYPE,
CLAIM_DTL.FIRST_SRVC_DT AS FIRST_SRVC_DT,
CLAIM_DTL.LAST_SRVC_DT AS LAST_SRVC_DT,
CLAIM_DTL.PLC_OF_SRVC_CD AS PLC_OF_SRVC_CD,
PROV.PROV_LST_NM AS BILL_PROV_LST_NM,
PROV.PROV_FST_NM AS BILL_PROV_FST_NM,
PROV.PROV_MD_NM AS BILL_PROV_MID_NM,
PROV.PROV_BILL_ADR1 AS BILL_PROV_ADDR1,
PROV.PROV_BILL_CITY AS BILL_PROV_CITY,
PROV.PROV_BILL_STATE AS BILL_PROV_STATE,
PROV.PROV_BILL_ZIP AS BILL_PROV_ZIP,
PROV.PROV_SEC_ID AS BILL_PROV_EIN,
PROV.PROV_ID AS SERV_FAC_ID    ,
PROV.PROV_ADR1 AS SERV_FAC_ADDR1          ,
PROV.PROV_CITY AS SERV_FAC_CITY ,
PROV.PROV_STATE AS SERV_FAC_STATE          ,
PROV.PROV_ZIP AS     SERV_FAC_ZIP ,
CHK_PAYMNT.CLM_PMT_PAYEE_ADDR_LINE_1,
CHK_PAYMNT.CLM_PMT_PAYEE_ADDR_LINE_2,
CHK_PAYMNT.CLM_PMT_PAYEE_CITY,
CHK_PAYMNT.CLM_PMT_PAYEE_STATE_CD,
CHK_PAYMNT.CLM_PMT_PAYEE_POSTAL_CD,
CLAIM_HDR.CREAT_RUN_CYC_EXEC_SK
FROM CLAIM_DTL,(select * FROM CCP_STG.CLM_DETAIL_PRESTG WHERE ACT_CD <>'D') CLM_DETAIL_PRESTG, CLAIM_HDR,CCP_STG.MBR_XREF,PROV,CCP_STG.CLM_PAYMNT_CLMEXT_PRESTG CLM_PAYMNT,CCP_STG.CLM_PAYMNT_CHKEXT_PRESTG CHK_PAYMNT
WHERE
CLAIM_HDR.ICN_NUM = CLM_DETAIL_PRESTG.ICN_NUM
AND       CLAIM_HDR.ICN_NUM = CLAIM_DTL.ICN_NUM
AND CLAIM_HDR.ICN_NUM=CLM_PAYMNT.ICN_NUM(+)
AND CLM_PAYMNT.CLM_PMT_CHCK_ACCT=CHK_PAYMNT.CLM_PMT_CHCK_ACCT
AND CLM_PAYMNT.CLM_PMT_CHCK_NUM=CHK_PAYMNT.CLM_PMT_CHCK_NUM
AND CLAIM_HDR.MBR_ENROLL_ID = MBR_XREF.MBR_ENROLLL_ID
AND CLM_DETAIL_PRESTG.FIRST_SRVC_DT >= 20110101
AND MBR_XREF.NEW_MBR_FLG = 'Y'
AND PROV.PROV_ID(+)=SUBSTR(CLAIM_HDR.PRVDR_NUM,6)
AND MOD(SUBSTR(CLAIM_HDR.ICN_NUM,14,2),2)=0
UNION ALL
SELECT DISTINCT CLAIM_HDR.ICN_NUM AS ICN_NUM,
CLAIM_HDR.SBCR_ID AS SBCR_ID,
CLAIM_HDR.MBR_ID AS MBR_ID,
CLAIM_HDR.MBR_FIRST_NAME AS MBR_FIRST_NAME,
CLAIM_HDR.MBR_MI AS MBR_MI,
CLAIM_HDR.MBR_LAST_NAME AS MBR_LAST_NAME,
CLAIM_HDR.MBR_BIRTH_DATE AS MBR_BIRTH_DATE,
CLAIM_HDR.GENDER_TYPE_CD AS GENDER_TYPE_CD,
CLAIM_HDR.SBCR_RLTNSHP_TYPE_CD AS SBCR_RLTNSHP_TYPE_CD,
CLAIM_HDR.SBCR_FIRST_NAME AS SBCR_FIRST_NAME,
CLAIM_HDR.SBCR_MI AS SBCR_MI,
CLAIM_HDR.SBCR_LAST_NAME AS SBCR_LAST_NAME,
CLAIM_HDR.SBCR_ADDR_LINE_1 AS SBCR_ADDR_LINE_1,
CLAIM_HDR.SBCR_ADDR_LINE2 AS SBCR_ADDR_LINE2,
CLAIM_HDR.SBCR_ADDR_CITY AS SBCR_ADDR_CITY,
CLAIM_HDR.SBCR_ADDR_STATE AS SBCR_ADDR_STATE,
CLAIM_HDR.SBCR_ZIP_CD AS SBCR_ZIP_CD,
CLAIM_HDR.PRVDR_NUM AS PRVDR_NUM,
CLAIM_HDR.CLM_PRCSSD_DT AS CLM_PRCSSD_DT,
CLAIM_HDR.CLM_TYPE_CLASS_CD AS CLM_TYPE_CLASS_CD,
CLAIM_HDR.AUTHO_NUM AS AUTHO_NUM,
CLAIM_HDR.TOT_BILLED_AMT AS TOT_BILLED_AMT,
CLAIM_HDR.HCFA_DRG_TYPE_CD AS HCFA_DRG_TYPE_CD,
CLAIM_HDR.FCLTY_ADMIT_DT AS FCLTY_ADMIT_DT,
CLAIM_HDR.ADMIT_TYPE AS ADMIT_TYPE,
CLAIM_HDR.DSCHRG_STATUS_CD AS DSCHRG_STATUS_CD,
CLAIM_HDR.FILE_BILLING_NPI AS FILE_BILLING_NPI,
CLAIM_HDR.CLAIM_LOCATION_CD AS CLAIM_LOCATION_CD,
CLAIM_HDR.CLM_RELATED_ICN_1 AS CLM_RELATED_ICN_1,
CLAIM_HDR.SUBSCR_INSGRP_NM,
CLAIM_HDR.CAC,
CLAIM_HDR.PRVDR_PTNT_ACC_ID,
CLAIM_HDR.BILL_TYPE,
CLAIM_DTL.FIRST_SRVC_DT AS FIRST_SRVC_DT,
CLAIM_DTL.LAST_SRVC_DT AS LAST_SRVC_DT,
CLAIM_DTL.PLC_OF_SRVC_CD AS PLC_OF_SRVC_CD,
PROV.PROV_LST_NM AS BILL_PROV_LST_NM,
PROV.PROV_FST_NM AS BILL_PROV_FST_NM,
PROV.PROV_MD_NM AS BILL_PROV_MID_NM,
PROV.PROV_BILL_ADR1 AS BILL_PROV_ADDR1,
PROV.PROV_BILL_CITY AS BILL_PROV_CITY,
PROV.PROV_BILL_STATE AS BILL_PROV_STATE,
PROV.PROV_BILL_ZIP AS BILL_PROV_ZIP,
PROV.PROV_SEC_ID AS BILL_PROV_EIN,
PROV.PROV_ID AS SERV_FAC_ID    ,
PROV.PROV_ADR1 AS SERV_FAC_ADDR1          ,
PROV.PROV_CITY AS SERV_FAC_CITY ,
PROV.PROV_STATE AS SERV_FAC_STATE          ,
PROV.PROV_ZIP AS     SERV_FAC_ZIP ,
CHK_PAYMNT.CLM_PMT_PAYEE_ADDR_LINE_1,
CHK_PAYMNT.CLM_PMT_PAYEE_ADDR_LINE_2,
CHK_PAYMNT.CLM_PMT_PAYEE_CITY,
CHK_PAYMNT.CLM_PMT_PAYEE_STATE_CD,
CHK_PAYMNT.CLM_PMT_PAYEE_POSTAL_CD,
CLAIM_HDR.CREAT_RUN_CYC_EXEC_SK
FROM CLAIM_DTL, CLAIM_HDR,MBR_XREF,PROV,CCP_STG.CLM_PAYMNT_CLMEXT_PRESTG CLM_PAYMNT,CCP_STG.CLM_PAYMNT_CHKEXT_PRESTG CHK_PAYMNT
WHERE CLAIM_HDR.ICN_NUM = CLAIM_DTL.ICN_NUM
AND CLAIM_HDR.ICN_NUM=CLM_PAYMNT.ICN_NUM(+)
AND CLM_PAYMNT.CLM_PMT_CHCK_ACCT=CHK_PAYMNT.CLM_PMT_CHCK_ACCT
AND CLM_PAYMNT.CLM_PMT_CHCK_NUM=CHK_PAYMNT.CLM_PMT_CHCK_NUM
AND CLAIM_HDR.MBR_ENROLL_ID = MBR_XREF.MBR_ENROLLL_ID
-- AND TRUNC(CLAIM_HDR.PRESTG_INSRT_DT) = TRUNC(SYSDATE)
AND CLAIM_HDR.CREAT_RUN_CYC_EXEC_SK = 123638.000000000000000
AND MBR_XREF.NEW_MBR_FLG = 'N'
AND PROV.PROV_ID(+)=SUBSTR(CLAIM_HDR.PRVDR_NUM,6)
AND MOD(SUBSTR(CLAIM_HDR.ICN_NUM,14,2),2)=0;

Improving SQL query for large records.

I need to extract the difference on the table t1 and t2(contains both almost 6M records). Im looking specifically on the two columns (c1,c2)for my comparison.I need also to look at reference table to extract also other fields for my report. thank you
Dynamic Table (same table and structure but different records.)
t1
t2
Reference Static Table (all the tables below have two columns. c1 and c2 used for reference only)
t3
t4
t5
--Extracting data in t1 but not exists in t2
WITH v1 AS(SELECT c2,c3,c4 FROM t1 at1
WHERE NOT EXISTS (SELECT 'x' FROM t2 at2 WHERE at1.c1 = at2.c2)),
v2 AS (SELECT c1, c2 FROM t3),
v3 AS (SELECT c1, c2, c3 FROM t4),
v4 AS (SELECT c1,c2 FROM t5)
SELECT v1.c1, v1.c2, v3.c2, v4.c2 FROM t,t2,t3,t4
WHERE v1.c1 = v2.c1
AND v2.c2 = v3.c1
AND v3.c2 = v4.c1
ORDER BY v1.c1
I'm trying to improve my scripts to generate the record as fast as possible coz it takes too long. Any suggestions guys.? Im trying to look also on explain plan but I'm new on this. thank you

Hi,
your sample code can not compile?
There is no column c1 in the v1?
Probably a typo anyway :)
A couple of remarks:
The way you've used v1, v2, v3 and v4 does not help performance.
It only helps increasing the confusion.
Rewrite the query without the WITH clause, post the execution plan for the query and report your Oracle version and we can help you further.
/ Ronnie

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