PL/SQL :: Update A Lot Of Rows With A Sequence?
Sep 30, 2013
, im having this trouble to update some records, the problem is i have I have this table with some transactions and each row have a cd_cli (client code), dt_ven (date of the transaction) and a product id (cd_prod) the trouble is, i insert a row for each product in this table, then i have like this
110001YURI AGUIRREWALLMA400V44-B469,0019/9/2013210001YURI AGUIRRESU-7N-B78,0019/9/2013310001YURI AGUIRREWALLSF35V22-S78,5719/9/2013410003WILLIANWALLSA470V22-BS449,002/9/2013 but i need to update the CD_TRANS for each row with the same number like all the YURI AGUIRRE recode must have like CD_TRANS 1, and the WILLIANs CD_TRANS must be 2 and the next must be cd_trans 3, but I've tried to update the table for a lot of ways but i don't have success trying to do this, the last thing i had tried was
MERGE INTO TVEN_TEMP a
USING (SELECT CD_CLI, DENSE_RANK () OVER (ORDER BY DT_VEN) new_seq_num
FROM TVEN_TEMP
WHERE CD_TRANS IS NULL) b
ON (a.CD_CLI = b.CD_CLI)
[code]....
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Aug 17, 2010
This is my query:
UPDATE t_tt_hours a
SET a.sak_request = (
SELECT b.sak_request
FROM t_requests b, co c
[Code]...
The problem I am having is that it is updating all rows even when it is pulling back a null value for b.sak_request. I've tried adding b.sak_request is not null to the select statement like this:
UPDATE t_tt_hours a
SET a.sak_request = (
SELECT b.sak_request
FROM t_requests b, co c
WHERE b.nam_eds_tracking_id = c.id_dir_track_eds
[Code]...
but it doesn't seem to make a difference. The reason I need to do this is that the difference between where it matches with a valid (non-null) value is 396 rows vs. 12,484 rows which is too time consuming to run on my page.
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Mar 21, 2011
I have one doubt about update command in sql. How to update the multiple rows with different values using update statment.
Eg:-
SQL> set linesize 500;
SQL> set pagesize 500;
SQL> select * from emp;
SQL> select empno,ename,sal from emp;
SQL> select empno,ename,sal from emp;
EMPNO ENAME SAL
---------- ---------- ----------
7839 KING 5000
7698 BLAKE 2850
7782 CLARK 2450
7566 JONES 2975
7654 MARTIN 1250
[Code]....
The above table contains 14 records. Now i would like to update the salary column with different values like
EMPNO SAL
===========
7839 18000
7698 20000
7782 5000
...
...
...
7934 25000
How to update above values with single update query.
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Sep 17, 2013
I'm currently facing a non-critical situacion while trying to update a table. Here's the PL/SQL Code. It's a pretty straight-forward script, It just update one single column of the table. The only problem is that I have to update over 15 milions records. When I use the for update cursor, I put inside the loop a counter, when it reaches 1000 records, then commit, else keep counting.
The block throws the exception ORA-01002: fetch out of sequence.
I've tried to do some reserch on Google, buy it only says it is an out of secuence fetch caused by a commit inside a for update cursor.
My question is. Is there any risk by putting the commit under the end loop, I mean by doing this I'd be updating over 15.000.000 records at the same time. Will I have any issue with the rollback segment ?
Here's the code as along with the Create Table and Insert statements.
CREATE TABLE TEST_1
(
TEST_ID NUMBER PRIMARY KEY,
IS_LOCKED NUMBER NOT NULL
);
INSERT INTO TEST_1
(TEST_ID, IS_LOCKED)
VALUES
(1, 0);
[Code]....
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May 17, 2012
I have a table ABC with two columns NAME and SEQUENCE. The valid values of sequence are from 1..50. The table may not have all the Sequence number. For example following is the data in my table..
Quote:NAME SEQUENCE
------------------------
Jonh| 5
Amy| 1
Suresh| 3
I need a SQL to get the data like
Quote:NAME SEQUENCE
------------------------
Amy| 1
| 2
Suresh| 3
| 4
Jonh | 5
|6
|7
..
..
..
|50
Basically I want to have rows for the sequence numbers which are not present i my table. I thought of using the following query to generate a sequence and then join, but does not work.
select rownum from dual connect by rownum <=50
I tried something like
with temp as (select name, sequence from abc where supp_ref_order is not null order by sequence )
select rownum as num, temp.name from dual, temp connect by rownum <=50 where temp.sequence =num
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Dec 6, 2010
I need to write a procedure to be able to reuse it to clean up subcategory sequence. Here is a problem: two tables: Category and subcategory:
create table Category
(category_id number,
Name varchar2(20))
/
create table Sub_Category
(sub_category_id number,
category_id number,
sequence number)
/
In the ideal world each subcategory of a single category would have unique sequence so if there are 3 subcategory for the same category then each of them would have 1,2,3 in sequence, if there are 5 subcategories then 1,2,3,4,5 for each of them etc.
Problem I'm facing is that some of the subcategories sequences for the same category has the same values . For instance for 4 subcategories of the same category, each of them has 1 (1,1,1,1) in a sequence.
So ideal world is :
Insert into Category values (123 ,'Category1');
Insert into Category values (234 ,'Category2');
Insert into Category values (345 ,'Category3');
Insert into Category values (456 ,'Category4');
Insert into Category values (567 ,'Category5');
Insert into Sub_Category values (1,123,1);
Insert into Sub_Category values (2,123,2);
Insert into Sub_Category values (3,123,3);
But I've also bad rows like this:
Insert into Sub_Category values (4,234,1);
Insert into Sub_Category values (5,234,1);
Insert into Sub_Category values (6,234,1);
Insert into Sub_Category values (7,345,1);
Insert into Sub_Category values (8,345,1);
[code].....
Fix for this and my goal is to select all such cases where subcases have mixed up sequences as above and give them randomly numbers starting from 1. So if there are 3 subcategories like for CATEGORY 2 then just apply random number to the sequence of the subCATEGORIES like 1,2,3. For CATEGORY 3 : 1,2,3 to 7.
I was thinking to write two procedures one selecting all the categories and passing category ID to the other procedure that would actually update sequence, like this:
CREATE OR REPLACE PROCEDURE SCHEMA.SELECT_CATEGORY
IS
CURSOR c1
IS
select category_ID from category where ...;
BEGIN
FOR a IN c1 LOOP
UPDATE_SUBCATEGORY(a.Category_id);
COMMIT;
END LOOP;
END;
/
And the actual procedure updating subcategory:
CREATE OR REPLACE PROCEDURE SCHEMA.UPDATE_SUBCATEGORY
BEGIN
............
END;
/
write PROCEDURE SCHEMA.SELECT_CATEGORY cursor to not miss any of the categories ID having mixed up subcategory. There can be any of the doubled sequences like doubled 1 value (this is majority) but there can be any other doubles (or at least I need to make sure that there aren't any other doubles 2 values or 3 values in sequence etc.)
And how to write SCHEMA.UPDATE_SUBCATEGORY to loop through rows of subcategory and update sequence with values starting from 1 ?
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Mar 25, 2013
My table have duplicate records. I want to impose a primary key on that table. For that I have to replace duplicate values of a column with next value of a sequence.
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Feb 6, 2013
I use a sequence to generate an alphanumeric code and I need to update all rows of a table with that sequence. The sequence is created with this code:
SELECT (CHR(TRUNC(s.nextval/1000) + ASCII('A')) || LTRIM(TO_CHAR(MOD(s.currval,1000),'099'))
FROM dual;
I have tried many things - most recently
Update t3_temp_table
SET mergecode =
SELECT (CHR(TRUNC(s.nextval/1000) + ASCII('A')) || LTRIM(TO_CHAR(MOD(s.currval,1000),'099'))
FROM dual;
I get missing expression error.
It works fine if I use a straight s.nextval
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Jul 5, 2010
I have a table:
Name
_____
Smith Street
Smith Street
John Street
Ed Street
Ed Street
Ed Street
and need to assign sequence numbers only when the record (Name) changes, e.g. :
Name Seq
_____ ____
Smith Street 1
Smith Street 1
John Street 2
Ed Street 3
Ed Street 3
Ed Street 3
I have experimented with row_number partition but then i just get the sequence returning to 1 when the name value changes.
If I grouped the records by Name I would like to have unique, sequential numbers: 1, 2, 3 but where there is the same name I would like the sequence to stop and the number to replicate?
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Aug 28, 2011
I want to update salary column of emp table in a way that every value of salary column be increased by 1000, is this possible I can do this one statement only??
(Just FYI-
SQL> desc emp;
Name Null? Type
----------------------------------------- -------- ----------------------------
EMPNO NOT NULL NUMBER(4)
ENAME VARCHAR2(10)
JOB VARCHAR2(9)
MGR NUMBER(4)
HIREDATE DATE
SAL NUMBER(7,2)
COMM NUMBER(7,2)
DEPTNO NUMBER(2)
)
[Code].....
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Oct 25, 2011
getting sql query to get the result below.If the Key repeats then I need to set it to O if for each key New_link doesnot match.
My Present table
Key New_Link
1 4
3 2
3 5
5 1
5 1
RESULT
Key New_Link
1 4
3 0
5 1
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Jun 12, 2013
I have 2 tables with 3 common columns (Col1, col2,Primary). One common column name is primary (oracle key word).Around 2 lakhs rows to be updated and No indexes are used on these tables. I need to write an update query as shown below.
Emp table
Col1col2primay
100101y
103104n
201105y
100101y
Dept table
Col1col2primay
100101null
103104null
000656null
Update query Result
Col1col2primary
100101y
103104n
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Sep 16, 2010
May I have a PL/SQL program that can update 1000 rows.
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Mar 14, 2013
In a table i have some duplicate rows
I can get it through this query : select PARTY_ID from XXWFS_CUSTOMER_EXT group by PARTY_ID having count (PARTY_ID) > 1;
Now for the records which i got for each duplicate row i want to update the second row with a specific value.. so that duplicate rows does not exist anymore
Ex: I got party id's 12, 14, 16, 18 two times each
Now as 12 is two times.. i want to update the second row of 12 with some x value same is the case for other values like 14,16, etc
how can i write a procedure for this
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Mar 3, 2010
This is a surprisingly common one I've found on the web...even on devshed forum
I am updating one table from another (Updating Table A from Table B):
Table A
ID, Value
-- -----
1 A
1 A
2 B
Table B
ID, Value
-- -----
1 Animal
2 Box
Table A (modified)
ID, Value, Name
1 A Animal
1 A Animal
2 B Box
No I need to update a new column in Table A with the value in Table B.Value where the ID's from both tables match. Problem is: When I do this I get multiple rows and hence Oracle won't let me update this column. Now, I keep reading that for these types of updates, there has to be a one-to-one relationship...
Is this true...is there anyway of telling Oracle to update wherever it finds that ID, regardless of how many duplicate ID's there are?
This is quite a frustrating problem and most of the sites that I've looked for solutions try get the query one-to-one...problem is...with my table sets it's impossible to do that - I need to update wherever the id's match (even if it return multiple rows).
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May 24, 2010
I have this requirement in Oracle FORMS ver 6i where I populate some records in a table in a datablock and display them on the screen. A facility needs to be provided to the end users to select the records randomly by just entering the count of the records in a non-d/b text field. The number entered in the count field will decide how many records are to be selected randomly.
I tried using the query -
UPDATE <table a>
SET <col 1> = <value 1>
WHERE rowid IN (SELECT rowid FROM (SELECT * FROM <table a> ORDER BY DBMS_RANDOM.VALUE)
WHERE <col 2> = <value 2>)
/
which I found on the link [URL] but while compiling, the Form gives a compilation error for the ORDER by clause - i'm sure there's no syntax error in the way I have written it...
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Dec 7, 2010
Assume that we have table Test with a column TestId and Status. This table is having 10,000 records. Now, we need to write a stored procedure that does the following:
1) Select top 10 rows whose "Status = NEW'
2) Update the selected top 10 rows with "Status = PROCESSING"
3) Return those top 10 rows.
Assuming there are hundreds of such requests coming to Oracle database, how can we make sure each request NEVER gets a duplicate record at any given point of time and how to fetch the records that have been updated individual request?
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Dec 13, 2011
how to update the middle of plenty rows in the middle of the columns
sample_data
id name state REGION LOC
1 v A.p 1 1
2 a
3 g K.A 0 3
4 y
5 i T.N 1 0
6 l M.P 0 1
7 c U.P
This is sample data,and i have this kind of large data and i need to fill the rows which are empty. In three columns state,region,loc with data like 0,web_intimation,1,
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Jul 24, 2009
Updating multiple ROWS with different values using single statement. Requirement is to update one column in a table with the values in the other table.
Say we have 3 tables, CORPORATION,CORPORATE PROFILE and MEMBER.
Each MEMBER has CORPORATE PROFILE which in turn is associated with CORPORATION. Now I need to update MEMBER table with CORPORATION identifier for members who belong to corporations with identifiers say 'ABC' and 'DEF'.
MEMBER table contains column 'CORPIDENTIFIER '. CORPORATEPROFILE table contains MEMBERID and CORPORATIONID,this will associate a member with the corporation. CORPORATION table contains ID and CORPIDENTIFIER.
Using the below query I am getting error,ORA-01427:single-row subquery returns more than one row
UPDATE MEMBER M SET M.CORPIDENTIFIER=
(SELECT A.IDENTIFIER FROM CORPORATION A,CORPORATEPROFILE B
WHERE B.CORPORATIONID=A.ID AND B.MEMBERID=M.ID AND (A.IDENTIFIER LIKE 'ABC' OR A.IDENTIFIER LIKE 'DEF'))
Sub query in the above query returns multiple rows and hence it is throwing the error.More than one members are associated with Corporations ABC and DEF. Is there any way possible to update all the rows in single query with out iterating the result set of sub query.
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Jul 29, 2013
I would like to update the complete flag of all the rows of a table except the most recent two rows of each category.
The table has fields like:
category - string,
item - string,
creation_date - string ('YYYYMMDDHHMI'),
complete_flag - boolean,
etc.
Each category does not have the same amount of records with the same creation_date so I do not want to filter by creation_date. Is there a way to accomplish this?
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Aug 20, 2013
create table temp_tst
(
FILENAME VARCHAR2(200),
EDITED_BY VARCHAR2(50),
EDITED_TO VARCHAR2(50)
)
[code]....
Can I write a single update statement to update filename column replacing "_tst" with "_check"?
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Apr 25, 2012
trying to update a column in a table which has 3 columns of 16million rows from column in another table which has 1million rows, there is no relationship between the 2 tables.
Table A has 3 columns of 16million rows, the first two columns have 16million ID numbers, the 3rd colunm is currently NULL.
Table B has 1million Numbers, i need to somehow update column 3 in table A using the numbers in table B, it doesnt how many times each of the 1 million numbers are used but i dont want it to just update every row to the same value.
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Feb 15, 2011
I am trying to update a million rows in one table with the values from another tables.
Table being updated CI_ADJ_CHAR column CHAR_VAL_FK1
Table from which values will be used CK_ADJ columns (cx_id, ci_id)
The CI_ADJ_CHAR.CHAR_VAL_FK1 values match CK_ADJ.CX_ID and should be updated with the value CK_ADJ.CI_ID.
The CK_ADJ table has 1.3 million rows and both the columns have indexes defined. Table definitiuon mentioned below
The CI_ADJ_CHAR table has 14 million rows and will update 1 million rows and has an index on the ADJ_ID column but not on the CHAR_VAL_FK1 column.
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Aug 25, 2010
Is there any way i can Get how many rows are processing with UPDATE statement while the Update statement is still running.
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Dec 22, 2010
The following control file updates multiple rows in database table.
LOAD DATA
INFILE *
replace
INTO TABLE temp_tab
FIELDS TERMINATED BY ","
(Data LOBFILE(CONSTANT cadd_pass.xml) terminated by eof
There are 21 lines in the xml. So 21 rows are updated in table.update only one row?
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May 14, 2010
I have a base table (Table A) block with multiple records displayed. I need to track audits to this underlying table in the following way:
If user updates a field in the block I want the pre-changed record's audit fields to be set and I need to create a copy of the record with the changed values. Basically any changes will result in the record being logically deleted, and a copy record created with the newly changed values.
Tried to implement in the block's pre-update trigger which will call a package to directly update Table A then Insert into Table A, then requery the block. Is there a clean and efficient way to do this?
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Sep 7, 2010
I have to update 20 and 60 million records of a table. The update statement are
1> 20 million recs
update mycustomer set update_time=add_months(sysdate,240) where seq_num = 1;
commit;
2> 60 million recs
update mycustomer set update_time=sysdate-seq_num where seq_num <> 1;
commit;
Q1> Is there any way to improve performance
Q2> Will parallel dml improve performance
Q2> Would a pl/sql cursor make any difference in speed.
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May 29, 2012
i want to create a trigger that will update a table when there is an insert or update.i can't across this error that i don't even know what it means "table %s.%s is mutating, trigger/function may not see it".
*Cause: A trigger (or a user defined plsql function that is referenced in this statement) attempted to look at (or modify) a table that was in the middle of being modified by the statement which fired it.
*Action: Rewrite the trigger (or function) so it does not read that table.
CREATE OR REPLACE TRIGGER set_date_end
BEFORE INSERT OR UPDATE OF issued ON shares_amount
FOR EACH ROW
DECLARE
BEGIN
INSERT INTO shares_amount(date_end) VALUES(SYSDATE);
END set_date_end;
/
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Mar 6, 2013
create table test1
( ID NUMBER(11)
,MEMBER_NMBR NUMBER(10)
,CODE_NMBR NUMBER(7)
,ROW_EFCTV_DT DATE
,ROW_TRMNTN_DT DATE
[code]....
insert into test1 values (11007,7462,32,'30/sep/2012','31/dec/9999',3,'25/sep/1998','AUTUMN',1,0,344);
insert into test1 values (11007,7462,32,'30/oct/2012','31/dec/9999',3,'25/sep/1998','AUTUMN',1,0,344);
IDMEMBER_NMBRCODE_NMBRROW_EFCTV_DTROW_TRMNTN_DTFLAG_NMBRBRTH_DTNAMECLAIM_CDAMT1AMT2
1100774623209/30/2012 00:0012/31/9999 00:00309/25/1998 00:00AUTUMN10344
1100774623210/30/2012 00:0012/31/9999 00:00309/25/1998 00:00AUTUMN10344
I have to update the row_trmntn_dt of first row to row_efctv_dt of 2nd row which is 30th Oct 2012 - 1 day i.e. 29th Oct 2012
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May 30, 2013
i am reading the columns value from different table but i want to update it with single update statement. such as how to update multiple columns (50 columns) of table with single update statement .. is there any sql statement available i know it how to do with pl/sql.
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