SQL & PL/SQL :: Update Table Using Loop
Apr 7, 2010
a project I'm working on. I normally work in SQL Server, so I'm a little stuck on this one.
I have a temp table (tmp_stack) with four columns:
Floor [varchar]
Unit [varchar]
Block [number]
BlockStart [number]
BlockEnd [number]
BlockStart and BlockEnd are currently NULL. What I need to do is loop through the table for each Floor and update BlockStart and BlockEnd for each Unit depending on how many blocks they use and how many have been used by prior units on that floor.
For example:
There are three units on Floor #1: 1A, 1B, and 1C.
1A = 5 blocks
1B = 3 blocks
1C = 2 blocks
For 1A, BlockStart should = 1 and BlockEnd should = 5
For 1B, BlockStart should = 6 and BlockEnd should = 8
For 1C, BlockStart should = 9 and BlockEnd should = 10
And everything should reset back to the beginning on successive floors.
In T-SQL, I would use a cursor, and I assume I need to do the same kind of thing in Oracle, but I can't figure out the syntax.
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Feb 19, 2010
I want to update column in table 1 based on a substraction of two column, one from the same table and the other from different table. Then update the result of substraction in table 1. Number of rows in two tables are different.
--for r in (( select (table2.y - table1.y as x from table1, table2 where table1.x = c and table2,.x = m))
declare
i number := 1;
c number ;
m number;
[Code]....
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Feb 2, 2012
I'm working with Oracle 10g.
I have a table like this;
ID Amount Date
123 5000 Oct-07-2011
123 null Oct-09-2011
124 7000 Oct-14-2011
124 null Oct-17-2011
124 null Oct-24-2011
What I'm trying to do here is loop thruogh the records and update the amount that's null with the previous amount with the same ID.
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Mar 11, 2011
Can this be optimized, in dev and Ist we didn't realize since 1000 rows were there, but in PERF since 2 mil rows are there this is taking a long time,
SET SERVEROUTPUT ON
DECLARE
counter number := 0;
CURSOR insertValues IS select roleid, productcode, functioncode, typecode, restrictiontype, value1 from restrictions where actionmode = 'INSERT';
[code]...
can this be done in a single update since Selects /Updates are happening on same table
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Jan 21, 2011
I can't seem to get away from writing php scripts to handle the update. I want to learn to use procedures more. What I have is a table like this:
courses(
id number(16) pk,
Division_title varchar2(100),
department_title varchar2(100)
I also have a temp table where I upload updated data into from time to time it looks like this
load_updates_courses(
id number(16) pk,
div_desc varchar2(100),
dep_desc varchar2(100)
)
Currently when I need to update the courses table, I write a php script to do the update. But what I really would like to do is write a procedure I could call to handle this.
I figured I need to loop over the recordsets in the update tables then do a update but I can't figure out how to get started with the plsql.
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Mar 12, 2013
My oracle version is oracle 9i
I need to commit after every 2000 records.Currently am using the below statement without using the loop.how to do this?
do i need to use rownum?
BEGIN
UPDATE
(SELECT A.SKU,M.TO_SKU,A.TO_STORE FROM
RT_TEMP_IN_CARTON A,
CD_SKU_CONV M
WHERE
[Code].....
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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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Jul 21, 2011
I have table test1(id,name) and table test2(id,,name)
Now when I update name column of a row on test1 I want the same value to be updated for the same id in test2.
So I wrote this trigger but its not working
create trigger test_trigger after update on test1 for each row
begin
update test2 set name=new.name where test2.id=id
end
/
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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 23, 2012
I have dcs_sku table .The record count is 50 thousand in that table.My requirement is to fech every row,create an xml out of it and post the data to some third party.As the count is very huge,I can't select the entire record and do the operation at a time.way which I will run the sql query in a loop,which will fetch 1st from rown 1 to row 1000,next 1001 to 2000,2000 no 'n' row...
I tried the below query:
select * from dcs_sku where rownum between 1 and 200...This gave me the 1st 200 rows and worked fine.
but the moment I changed the query to :
select * from dcs_sku where rownum between 201 and 300:::No result was coming up.
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Jun 13, 2011
I am using arrays on this procedure but would like to use a WHILE LOOP to fill the array. The first element uses a balance forward amount unlike the next 11 elements so I would think I have no other choice for the first element.
jde_account_balances is the table name that stores the amounts.
Here is what I currently have coded:
X INTEGER;
Y INTEGER;
Z INTEGER;
[code]...
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Jul 5, 2012
How to insert null record (for some columns) in table using loop.
sample data of x_tab
order_id order_name
231 xxx
123
345
111 vvvv
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Oct 11, 2013
I have a plsql block construct where i want to use for loop dynamically , the query which for cursor for for loop will accept the table name from parameter and join them to return the result. the resultant data will iterate in loop and do the execution.
DECLARE
--initialize variables here
v_date varchar2(10);
v_rebuild_index varchar2(250);
v_sql VARCHAR2(250);
p_table_name varchar2(250) := 'DS_ABSENCE';
p_source_table varchar2(30) := 'STG_ABSENCE';
p_source_owner varchar2(30) := 'STG_SAP';
v_for_sql varchar2(1000);
[code]....
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Oct 8, 2013
How to create this pl/sql process to add elements to a nested table or varray within a loop. Here's the scenario: I have an apex package that has some pl/sql processes and some stored procedures. I am dealing with Inspection Areas. An Inspection Area has several sectors. I already have the loop that lists all the Inspection Areas and a loop inside that loop that lists all the sectors. There is an if statement that determines whether or not the sector name gets stored in the varray or table. I am not sure how to correctly do this and am not sure whether to use a nested table or varray. I've posted somewhat of a pseudo coded example below
If (you_belong_in_table) then
variable := store_me_in_varray /* OR */
variable := array_type(sector.sector_name)
i := i + 1;
end if;
/* Now we output our varray or table */
start loop
output(sector names one by one)
end loop I hope this makes sense. I more so just need the syntax to be able to continually added values to a table or varray while I'm already inside a loop; and also how to output those values end the end as well.
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Dec 13, 2012
i need to do a loop on a table and export the data in Excel format (so i need a procedure to do it).
write a java class that build this Excel.. oracle procedure loop around the data and every step my Java class write on Excel file.
So, for this i should initialize my java class for example
public class ExcelExporter{
private String fileName;
public ExcelExporter(String fileName){
this.fileName = fileName;
}
}
So, for this issuse i should call the ExcelExporter costructor from my PL/SQL so i can create an object of it and next i use this to populate my Excel.
How its possible to create Java object from PLSQL ? I've seen on the net all procedure call only Java static methods...
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Jul 19, 2011
I have a column "empno" in EMP table and "deptno" in DEPT table . I want to update both the columns with single UPDATE statement. With out a creation of stored procedure or view(updating it through view).
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Nov 19, 2012
CREATE OR REPLACE PROCEDURE IND_MONITOR(P_tab VARCHAR2)
is
type ind_table is table of varchar2(20);
p_ind ind_table;
v_sql varchar2(2000);
begin
select index_name bulk collect into P_Ind from user_indexes where table_name=upper(P_tab);
for i in 1..p_ind.count loop
v_sql :='alter index '||p_ind(i)|| ' monitoring usage'
execute immediate v_sql using p_ind(i);
end loop;
end;
can i use forall instead of 'for loop ..end loop'
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May 16, 2013
creating an sql script that can update info from one table in dbase1 to another table in dbase2 that has the same columns and if possible insert date and time in one column when the synchronized is done?
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Aug 24, 2013
My scenario is I need to insert into History table when a record is been updated into a tabular form(insert the updated record along with the additional columns Action_by,Action_type(Like Update or delete) and Action Date Into History table i.e History table contains all the records as the main table which is been visible in tabular form along with these additional columns ...Action_by,action_type and action_date.
So now i dont want to create a befor/after update trigger on base table rather i would like to create a generic procedure which will insert the updated record into history table taking the page alias and pade ID as the parameters(GENERIC procedure is nothing but whcih applies to all the tabular forms(Tables) contained int he application ).
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Feb 6, 2011
I am trying to update columns of Table A with the columns of Table B. Both these tables have 60,000 rows each. I tried this operation using following 2 queries:
Query 1
Update TableA A
set
(A.col1,A.col2,A.col3)=(select B.col1,B.col2,B.col3
from TableB
where A.CODE=B.CODE)
Query 2
Update TableA A
set
(A.col1,A.col2,A.col3)=(select B.col1,B.col2,B.col3
from TableB
where A.CODE=B.CODE)
where exists
A.code = (select B.code
from TableB B
where A.code=B.code)
When i execute these two above queries, it keeps executing indefinitely.
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Dec 28, 2010
I need to take a snapshot of a table before insert or update happens to that table.... in oracle 10g. I am reading the MV docs from oracle and below link..
[URL].......
how MV should be written for this and how to schedule it in dbms_jobs for auto refresh?
assuming that t1 is the table where DML operation are goin to happen so before any insert or update, snapshot has to be taken, and I am assuming that to do this it would look something like this?
create materialized view my_view refresh fast as select * from t1;
create materialized view log on my_view;
and then schedule in a dbms_jobs?
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Aug 14, 2011
Can we update a table using another schema table of same style?
Example:
Update employees
set employee_name=hr.employees.employees_name
where employee_id=100;
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Aug 14, 2010
i have two databases and created the link between them. I can easily query the data but when i need to update my local records from the remote its showing an error
SQL> update laptop set name =
2 (select name from laptop@ora_link1 where id between 2 and 4)
3 where id between 2 and 4;
(select name from laptop@ora_link1 where id between 2 and 4)
*
ERROR at line 2: ORA-01427: single-row subquery returns more than one row
select multiple rows from the remote db and update them in the local db.
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Aug 28, 2011
My problem is the following:
At the time when P_delivery_date changes in P_ORDERS I want to transfer P_delivery_date to S_delivery_date in S_ORDERS for corresponding records.
Tables:
purchase orders table P_ORDERS:
P_order_number,
P_poz_number,
S_order_number,
S_poz_number,
P_delivery_date
sales orders table S_ORDERS:
S_order_number,
S_poz_number,
S_delivery_date
My question is:
Is it possible and what would be the solution using the TRIGGER on table P_ORDERS to update S_delivery_date with P_delivery_date in S_ORDERS?
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Aug 8, 2012
how to adjust a total (counter) after a record is inserted into a table.
the dilemma i am facing is we are using third party software for our fundraising operations so I have no control over what gets done in the background as users process their daily batches into the system. below is the scenario:
create table paytable(
idnumber number(12),
appealcode varchar2(20),
batchno number(8),
trantype varchar2(3),
transnum number(8),
split_transnum number(8));
[Code]..
IDNUMBER APPEALCODE BATCHNO TRA TRANSNUM SPLIT_TRANSNUM
---------- -------------------- ---------- --- ---------- --------------
16084 DVFG1206 20120808 PP 23853576 1133821
16084 DVFG1206 20120808 PPO 23853577 1133821
1234 DVFG1206 20120808 PP 23853578 1133822
create table appealtable
(appealcode varchar2(20),
total# number(9),
total$ number(13,2));
[Code]...
APPEALCODE TOTAL# TOTAL$
-------------------- ---------- ----------
DVFG1206 100 2500
during batch posting records are inserted into the paytable, on some pledge donations donors will send overpayments when fulfilling a PLEDGE(as is the case with donor 16084) therefore the system will split the payment during the process and will assign a trantype of 'PP' to the exact pledge amount and a 'PPO'(pledge payment overage) towards the balance. additionally as records get inserted into paytable there is counter of those paytable records going into the appealtable for that particular appealcode so in the case above when batchno 20120808 is completed appealtable.total# will show 103 and total$ will show $2532($10,$12,$10,,,I did not include payment$ since that is not the focus of this issue and will not change).
mgt wants the counter into the appealtable to be 2 instead of 3 records since the two records that were split(same split_transnum) should be recorded as one response not two.
I have tried writing an after insert trigger(dreaded mutating table error) and can't seem to figure out how to update the counter to the appealtable after records are inserted into paytable. below is some code I've been working with but it's not working.
CREATE OR REPLACE TRIGGER PPO_Payment
AFTER INSERT ON paytable
FOR EACH ROW
DECLARE
p_cnt NUMBER :=0;
[Code]...
show errors
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Apr 21, 2013
Using Oracle 11g SOE R2...
I used to have two tables to store details of PROPERTIES e.g UNIT_COMMERCIAL , UNIT_RESIDENTIAL. I need to combine both of them into one table called UNIT. I moved the data to the new table, but now I am stuck how to update the values of the child table which called MARKETING.
---
Now, I have two tables:
MARKETING (ID NUMBER PK , OLD_UNIT_ID NUMBER FK ...)
UNIT (NEW_ID NUMBER PK , OLD_UNIT_ID NUMBER ... )
I need to update the value of OLD_UNIT_ID in Marketing table to be equal to NEW_ID in the table of UNIT. As you can see the values of OLD_UNIT_ID in both tables are the same.
I used this statement
update ( SELECT distinct M.UNIT_ID , U.OLD_ID , U.ID FROM MARKETING M INNER JOIN UNIT U ON (M.UNIT_ID = U.OLD_ID)) set unit_id = idBut I got this error:
ORA-01732: data manipulation operation not legal on this view??
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Dec 19, 2012
I've tried to Update table with values from another table, but I couldn't.Is there a single way to do that with just one query?Below goes an example:
CREATE TABLE TEST1 (
COD NUMBER,
DCR VARCHAR2(10) );
CREATE TABLE TEST2 (
COD NUMBER,
DCR VARCHAR2(10),
DCR2 VARCHAR2(10) );
[code]....
I want to UPDATE the field DCR of the table TEST1 with the VALUE of the field DCR2 of the table TEST2.At the end, after the update, the table TEST1 would be like that:
SELECT * FROM TEST1
COD --- DCR
------------------
1 'TESTE3'
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Sep 6, 2013
I want to update a row in a table say Table A and the updated row should be inserted into another table say Table B. I need to do it in a single SQL query and i don't want to do it in PL/SQL with triggers. And i tried with MERGE statement but its working with this scenario.
(Note: I'm using Oracle Database 10g Enterprise Edition Release 10.2.0.1.0).
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Oct 26, 2010
I am having a requirement to update a table column from min value of column from other table..
Since i cannot format the code well here..I attaching one pdf where we have details and requirements..
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Jul 24, 2013
I am using oracle 11g:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
PL/SQL Release 11.2.0.2.0 - Production
CORE 11.2.0.2.0 Production
TNS for Linux: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production
I have a table usage_data with 100 millions of rows in it . It's a partitioned table.
I want to update one of the column in this table usage_data with a default value.
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