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Given that, we can:[email protected] select * from a 2 / ID A1---------- ------------------------- 1 Hello 2 World The following updates are equivalent as well - they do the same thing differently. March 22, 2004 - am UTC hows about this -- you write out in english what each one does -- write the "specs" if you will that describe what each query does.

If the table containing the changes can have MORE then one occurrence of the "primary key" of the other table -- no chance for a single statement. ELIGIBILITY_KEY FROM STG_F_ELIGIBILITY_TRY B, stg_claim_try a WHERE A. Analyze, use the CBO and look for nice big juicy HASH JOINS Hi Tom Thankyou very much for your query. DATE_SERVICE May 12, 2004 - pm UTC my concept now, that the join is "fast" is to use a global temporary table with a primary key - insert the results of the select join into it and update the join (which we can do since the gtt will have a proper primary key on it) Tom, I tried that but I think I'm doing something wrong. I’m with you on the fact that this update should take no more then few minutes but it’s not :-) . DATE_SERVICE, 'YYYYMMDD')) May 24, 2004 - pm UTC search this site forora-01555also ask yourself, so, what happens when we crash in the middle of the loop. create table testupdate (sno number(4), itemcode varchar2(8), value number(4), appliedvalue number(4)) insert into testupdate (sno,itemcode,value) values(1,'item1',200); insert into testupdate (sno,itemcode,value) values(2,'item2',100); insert into testupdate (sno,itemcode,value) values(3,'item3',300); insert into testupdate (sno,itemcode,value) values(4,'item4',200); insert into testupdate (sno,itemcode,value) values(5,'item5',50); insert into testupdate (sno,itemcode,value) values(6,'item6',200); insert into testupdate (sno,itemcode,value) values(7,'item7',400); SNO ITEMCODE VALUE APPLIEDVALUE-------- -------- ---------- ------------ 1 item1 200 2 item2 100 3 item3 300 4 item4 200 5 item5 50 6 item6 200 7 item7 400Now: I'm writing a stored procedure in which I have to update the appliedvalue column of the above table.

Check out all our database development sessions at OOW19 This may seem like a simple question: Update Column a1 in Table A with all data in Column b1 in Table B. The Headoffice is merge the data into their system. For migration data first of all i create another temporary user named VISTEMP then cotinuing this kinds of codeinsert into VISTEMP. Its working very nicely.i will greateful to u forever.i was suffering by this problem for a long i am using the following /insert into VISTEMP. i could envision problems with only a second of granularity on a clock -- you could miss a record or two due to that.c) er? Here the source tables have data with leading spaces and the target data should be without spaces.

But I am trapped by the method that without using cursor to achieve it. REGISTRATION(BIN, NAME, NAME_ALIAS, COR_GROUP, AUTHOBY, AUTHODATE, CG_NAME, ADD1, ADD2, ADD3, TEL1, FAX1, ADD5, ADD6, ADD7, TEL2, FAX2, ADD9, ADD10, ADD11, TEL3, FAX3, TP_TYPE, TRD_LINC, TRD_FY, TRD_AUTH, IMP_REG, EXP_REG, REG_TYPE, TIN, STATUS, PRE_BIN, DATREG, STAT_CHNG, ACT_CODE, ACT_MULT, ITEM_TYPE, OLD_ACT, APP_CAT, LCODE, ISSUE_DATE, VREG, M_POSI, MFUNC, SFUNC, LAST_USER, LAST_ACCS, TREG, PAY_FREQ, CREG, EREG, OREG, OP_BAL, OP_BAL_DT)select BIN, NAME----from VIS. REGISTRATION); RUN and Computer in BIG Busy mood(Hang). REGISTRATION(BIN, NAME, NAME_ALIAS, COR_GROUP, AUTHOBY, AUTHODATE, CG_NAME, ADD1, ADD2, ADD3, TEL1, FAX1, ADD5, ADD6, ADD7, TEL2, FAX2, ADD9, ADD10, ADD11, TEL3, FAX3, TP_TYPE, TRD_LINC, TRD_FY, TRD_AUTH, IMP_REG, EXP_REG, REG_TYPE, TIN, STATUS, PRE_BIN, DATREG, STAT_CHNG, ACT_CODE, ACT_MULT, ITEM_TYPE, OLD_ACT, APP_CAT, LCODE, ISSUE_DATE, VREG, M_POSI, MFUNC, SFUNC, LAST_USER, LAST_ACCS, TREG, PAY_FREQ, CREG, EREG, OREG, OP_BAL, OP_BAL_DT)select BIN, NAME, NAME_ALIAS,---- from VIS. d) I don't program forms -- you can try otn.- Thank u very much for ur nice reply. I plan to use RTRIM function in the WHERE clause to get specific set records and then after fetching, I’ll insert with a RTRIM on each column.

If you tried:table t1( x int primary key, y int );table t2( x int, y int );insert into t1 values ( 1, 0 );insert into t2 values ( 1, 100 );insert into t2 values ( 1, 200 );thenupdate ( select t1.y t1_y, t2.y t2_y from t1, t2 where t1.x = t2.x ) set t1_y = t2_ywould be "ambigous" -- no way we could know if y would end up with 100 or 200 -- hence we don't even permit it. Hi Tom, As you said in my case scenario I cannot use UPSERT(MERGE) and i have to write a pl/sql in case to achieve -1.) Insert /Update from temporary table to actual table. Surely next time, i will follow your instructions regarding create and insert statements, which helps you to answer quickly. Regardsdmv Tom, I am using the cost based optimizer, I followed your suggestion and analyzed the 2 tables, this is what I get now.****************************************************** to finish. ELIGIBILITY_KEY FROM STG_F_ELIGIBILITY_TRY B, STG_CLAIM_TRY a WHERE A. Is there any other information that I can provide you with to help shade some light on this pain in the neck update? I changed the global temporary table to index organized table, the insert takes minutes and the update never finish (it’s still running now for about 30 minutes already). DATE_SERVICEFROM STG_CLAIM_TRY A, STG_F_ELIGIBILITY_TRY B WHERE A. can I restart that process or did the programmer not even begin to think about that eventuality? June 15, 2004 - pm UTC 1) b must have a primary key, yes.2) a merge is an UPDATE AND INSERT. For this I have something called the actual Value which is stored in the variable vnum_actual Value.

(Nt- As i am loading data into temporaray table from a legacy system, i want this load to be as fast as possible so i am not putting any constrain on temp table and handling most of data error inside oracle. CREATE TABLE PROC_CLAIM_ELIG_JOIN_TMP (ELIGIBILITY_KEY NUMBER, CLIENT_MEMBER_ID NUMBER, DATE_SERVICE DATE, CONSTRAINT PK_PROC_CLAIM_ELIG_JOIN_TMPPRIMARY KEY(CLIENT_MEMBER_ID, DATE_SERVICE)) ORGANIZATION INDEX INCLUDING ELIGIBILITY_KEY OVERFLOWNOLOGGINGPARALLELALTER TABLE PROC_CLAIM_ELIG_JOIN_TMP ADD CONSTRAINT PK_PROC_CLAIM_ELIG_JOIN_TMPPRIMARY KEY(CLIENT_MEMBER_ID, DATE_SERVICE) USING INDEX; INSERT /* APPEND */ INTO PROC_CLAIM_ELIG_JOIN_TMP(ELIGIBILITY_KEY, CLIENT_MEMBER_ID, DATE_SERVICE)SELECT /* ALL_ROWS */ DISTINCT B. update ( select a1, b1 from a, b where = ) 2 set a1 = b1 3 /And then as you state, for doing this kind of an update. Further, as per your demo a merge is faster than a regular update, when a merge does just an update. where did i show merge being faster than a single update? This value in the variable vnum_actual Value should be distributed among the appliedvalue column as follows.

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