is there any possibility or hint to avoid updating record if columns do not change? For example, I have UPDATE:
UPDATE MY_TABLE SET COLUMN_A = 'ABC' WHERE COLUMN_B = 12
if the value in COLUMN_A is 'ABC' I do not want to do this update. Of course I can add in WHERE 'AND COLUMN_A<>'ABC' but when I am updating a lot of columns it will be annoying
am trying to add a validation in Oracle forms using Oracle DB.in a Oracle table consider there is a record named 'Netbook' then if I try to create another record with name 'Netbooks', then a Oracle warning message should be displayed stating similar name 'Netbook' is already available. same way, if NETBOOKS is already available in table and if user try to create another record NETBOOK then same warning message netbooks is already available should be shown.
View 17 Replies View Relatedthis is my test data :
create table tab_1(c1 number,c2 number,c3 number);
create table tab_2(c1 number,c2 number,c3 number,c4 number,c5 number,c6 number);
insert into tab_1 values(1,1,1);
insert into tab_1 values(2,2,2);
insert into tab_2 values(1,1,1,3,3,3);
insert into tab_2 values(2,2,2,4,4,4);
The final result would be, update columns c1,c2,c3 from table tab_1 whith the values of columns c4,c5,c6 from tab_2 where tab_1(c1,c2,c3) exist in tab_2(c1,c2,c3).
My first aproach was :
merge into tab_1
using (select c1,c2,c3,c4,c5,c6 from tab_2) tab_2
on (tab_1.c1=tab_2.c1 and
tab_1.c2=tab_2.c2 and
tab_1.c3=tab_2.c3
)
[code]....
but gets error : ORA-01779
create table temp_table as
select tab1.c1,
tab1.c2,
tab1.c3,
tab2.c4 new_1,
[code]....
I created a report ...whcih i complied and run on paper layout form.. it shown me on correct dta..but i change change layout size and postion on that viewer..
is it avoidable....if yes, then how ?? I wantto lock these object while previewing...
Using 11gR2, windows 7 client machine. I need to update the table missing_volume (below), where I need to calculate the estimated_missing column. The calculation of estimated_missing column for current month needs previous month numbers (as commented inside the code below). I want the output like the first table. Notice the records start from January, hence estimated_missing for January can't be calculated, but for the the rest of the months it can be done by simply changing 'yr' and 'mnth' (commented inside the code towards the end).
yr mnth location volume actual_missing expected_missing estimated_missing
---------------------------------------------------------------------------------------------------------------------------------
2013 January loc1 48037 24 57
2013 February loc1 47960 3660 53 24
2013 March loc1 55007 78 57 28
2013 April loc1 54345 72 58 77The code:
UPDATE missing_volume g
[Code]....
The code does calculate correct number for 'estimated_missing' as I run the code for each month, but the problem is while updating the current month it also erases the record for previous month. E.g. as can be seen below, after I updated April the column only has the record for April, previous month record is gone, similarly updating March removed February, etc. I can't understand why it's happening!! Here is the output I get:
yr mnth location volume actual_missing expected_missing estimated_missing
---------------------------------------------------------------------------------------------------------------------------------
2013 January loc1 48037 24 57
2013 February loc1 47960 3660 53
2013 March loc1 55007 78 57
2013 April loc1 54345 72 58 77
why it's happening (I mean where is the flaw in the code) and how to get the desired output (first table).
I have created the following trigger whcich will track all the column changes and insert the row in log table. here i have some doubt while substituting the cursor value.
create or replace trigger historylog_trigger
before update on log_dev_test
for each row
declare
PRAGMA AUTONOMOUS_TRANSACTION;
in_loamid number(10);
in_col_name varchar2(10);
in_old_val varchar2(100);
[Code]..
are the below assignement of values will work ?
in_old_val:= ':old.'||r.column_name;
in_new_val:= ':new.'||r.column_name;
i want to take the coulmname from the cursor and assign tat to psuedo columns like :new.r.column_name .
when I updated a record in my form check my screenshot: and clicked save button the result was:
as you can see in the message at the bottom, it has 18 records. And since my original data(subjects) are just 9. And also the grades that I input didn't display all.
This is my code in when-new-block-instance trigger:
DECLARE
CURSOR studgrade_cur IS
SELECT e.student_id, s.subject_code --, g.grade
[code]...
DROP TABLE TESTING CASCADE CONSTRAINTS;
CREATE TABLE TESTING
(
DATAPERIOD DATE,
EMPLID VARCHAR2(20 BYTE),
B_OS_REASON VARCHAR2(9 BYTE)
)
TABLESPACE USERS;
[Code] ........
SQL> select * from testing order by 1;
DATAPERIO EMPLID B_OS_REAS
--------- -------------------- ---------
01-OCT-10 2387972
01-NOV-10 2387972
01-DEC-10 2387972 XXXXXX
01-JAN-11 2387972
01-FEB-11 2387972
In the above result, We need to go from bottom up and when we hit some value we need to update with the lastest record as below.("Blank" space are considered as null.)
DATAPERIO EMPLID B_OS_REAS
--------- -------------------- ---------
01-OCT-10 2387972
01-NOV-10 2387972
01-DEC-10 2387972 XXXXXX
01-JAN-11 2387972
01-FEB-11 2387972 XXXXXX
I have a table A, whose table structure is in the below format.
Table A
ID DESC VALUE
123 A 454
123 B 1111
123 C 111
123 D 222
124 A 123
124 B 1
124 C 111
124 D 44
Now i need to insert the data from this table to another table B, the sturcture of which is as below
Table B
ID A B C D
1234541111111222
124123111144
How do i frame a query to fetch data from table A and insert that into table B? I don't want to use max and decode combination. as it would return only single row for an ID. I need all the id's to be displayed.
I need to update the current column with sum of the previous column values. Following are the creation scripts
DROP TABLE TEST_LOG;
CREATE TABLE TEST_LOG
(
[Code]....
Above query is working fine to retrieve the previous column values.But when we are updating the SUM_PRE_COLS column with those values it's not working fine.
I tried by using the following query
UPDATE TEST_LOG T SET SUM_PRE_COLS =
( SELECT LAG(T2.KEY0, 1, 0) OVER(ORDER BY T2.KEY0) + LAG(T2.KEY1, 1, 0) OVER(ORDER BY T2.KEY0)
FROM TEST_LOG T2 WHERE T2.ROWID= T.ROWID);
SELECT COUNT(*)
INTO v_ctr
FROM leave_type_govt_service
WHERE (
:block_name.min BETWEEN minimum AND maximum
[code]......
This code in my forms really works for inserting a new record. But if I will update the record itself for example, in the table 'Type 1'
Minimum Maximum
1 5
6 10
11 15
and I will update the 6 - 10 to e.g. 7, It must update but my query includes 6 - 10 data so it raise the trigger failure.
Note: The AND condition in the last part is for unique types. Because even if e.g. 'Type 2' has a Min and Max data same as the 'Type 1' the trigger will not prompt.
I am using Forms 6i and developed a Master Detail Oracle Form for Oracle EBS 11i application.
I was asked to write a pl/sql program so that.. When a user updating an existing record at the same time another user query the same record and try to update the same time, the record should be locked and a message should popup saying the record is being updated by another user.
I have created an application as database authentication.In the application, I have developed a screen based on a tabular form,when I try to update a record ,the record is updated with apex_public_user insted of the database login.
View 3 Replies View RelatedI'm getting some problem in my project. I've taken my form fields in tabular way. I also have the ID with auto-increment system there. I want that when user moves towards the 2nd row for inserting new record then the 1st record would be committed.
I'm getting my bank-id from database and making +1 increment and made that bank-id text box into display box.
When running my form then it is increasing one like this :
database record
BKID-00001
and with one increment it is showing this in my form display field of 1st row in tabular form.
BKID-00002
but when I moves towards the 2nd row it doesn't commits the form and gives the BANK-ID AS "BKID-00002" again like the above row.
Apex Version: 4.2.0.00.27Theme: 25 I have a page that I need to divide by 8 segments, rather than 12 ( I will need to place items and buttons in one of the 8 columns). To begin, I have made a copy of the One Level Tabs - No Sidebar page template. I have tried to edit this template, and played with multiple combinations changing the Grid Layout and Display Points settings, but instead of creating a page that has 8 columns, that span the width of the page, I am just left with blank space. See attached:.[URL] And these are the Page Template Settings:[URL] Is it possible to change the body section of the page template to have 8 columns span the entire width, without the dead space?
View 2 Replies View RelatedSQL> update t set a = 1 where b = 2; -- must have redo record
2 rows updated.
SQL> rollback;
the above redo record that uncommit changed must be written from redo buffer to the online redo logfile. why Oracle write the redo record that uncommit changed to the online redo logfile ? when it will be used?
I want to change space allocation for character columns in my database, So it will store them as 'CHAR' and not 'BYTE'.my character set is
SQL> SELECT VALUE FROM V$NLS_PARAMETERS WHERE PARAMETER='NLS_CHARACTERSET';
VALUE
----------------------------------------------------------------
AL32UTF8
SQL> alter system set NLS_LENGTH_SEMANTICS='CHAR' scope=both;
System altered.I bounced the instance just to make sure
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
Connected to an idle instance.
SQL>
SQL>
SQL> startup
ORACLE instance started.
[code].....
And then I want to see that when I create a table with some varchar2 column,The space for it will be allocated by chars, and not by bytes! However, when I run a check of create table, this is what I get:
SQL> drop table check_char;
Table dropped.
SQL> create table check_char (some_name varchar2(10));
Table created.
SQL> select a.char_used
2 from all_tab_columns a
3 where table_name='CHECK_CHAR'
4 and a.owner='SYS';
C
-
B
SQL>
What is the reason for space allocation to remain in BYTES and not CHAR, or what else I can check?
I need to display the record when all the columns have matching records,If one of them doesn't match then it should not be displayed
The following is the example
WITH t1 as
(select 159435 ky from dual)
,t3 as
(select 78 id ,'Z-' rk,'SL' cd from dual union all
select 78 id ,'Z+' rk,'SL' cd from dual union all
select 78 id ,'Z-' rk,'SL' cd from dual union all
[code].....
In the above data bg.rk= 'Z-' but one of the record in T3 is having Z+ ,So this should not be displayed (same condition with column CD) in this example cd column in both table matches I tried like above query but i'm getting the record.
if there is any inbuilt function or way to find a row in the table that is having value for maximum number of columns.
For example, the table A has 5 columns
(c1,c2,c3,c4,c5) and it has 3 records(r1,r2,r3)
and
r1 has values only for c1,c2
r2 has values only for c1,c2,c3,c4
r3 has values only for c1
so I should get the result as "r3 has values for 4 columns & it is not having value for column c5".
I would like to UPDATE the columns p1 and p2 of my table student (studentid:pk,name,p1,p2,...) for a given studentid.and I have a when-button-pressed trigger with this
UPDATE student
SET student.p1=:validation.proj1,
student.p2=:validation.proj2
where UPPER(student.studentid)=UPPER(:validation.studentid);commit_form;
when I run my form with a correct studentid, I got this error: FRM-40508: ORACLE error: UNABLE to INSERT record
but it is cworking correctly in sqlplus; and I have all priveligies.
when a user change or delete any record or row in forms data automatically move to other table because i want to compare old and new record.
View 8 Replies View RelatedWe have Oracle 8i, 9i, 10g and 11g. I installed oracle client 11gR2 and when I tried connecting to the database, its erroring out saying "ORA-03134 connections to this server version are no longer supported". What client version should I install in order to avoid this error?
View 2 Replies View RelatedI have two tables where I have to find the record for Max value of the column sap_pkid for every sap_id as in given table create script. This script is giving correct value but looking for a better way so that when data increses it doesn't hit the performance.
way where max can be avoided or a more tuned query .
create table tab1 (sapid number,
denid number);
create table tab2 (sap_pkid number ,sapid number,
denid number,
[code]...
I have a query that performs the sum of a field and divides by the number of occurrences, got me a problem because if there are no occurrences would cause a divide by zero error in Query.
The solution I found might not have been the best, but at the time was possible.
I put a Case, when the sum of the number of occurrence is zero then return zero, otherwise performs the division of the sum of the values by the number of occurrences.
SELECT CLIENT_ID,
TO_NUMBER(TO_CHAR(DTPROC, ''YYYYMM'')),
DTPROC, EXCHANG_VAL,
[Code]....
Now this query is very slow, because have CASE,SUM and GROUP BY, so I need to optimize it.
do this validation (if the divisor is zero) more performance?
select T2.name,sum(T1.area)
from (select * from country) T1,T2i wrote very simple just to show you the problem, bu i think here we should add "group by".
but is there any way to avoid group by?because i don't want to group any thing!
oracle11g
I have created a procedure which sends mail to the users by using the smtp operation. I am collecting the email id of the users and then concatenating the same using the loop.
Everything is working fine, but if some person is coming multiple times in the loop, then his/her name is shown multiple times in the CC/BCC part (Although mail is sent once), it should be restricted to one time.
what i am doing is:
I have declared id_collector and it is concetenating the email as per the condition loop
........ some code here....
id_collector:=id_collector||email_id||';';
end loop;
Now, I want to check before concatenating that email already exists or not.
Example:
suppose value of id_collector= 'abc@gmail.com;pqr@gmail.com;rst@gmail.com;xyz@gmail.com;'
and again if email id comes - 'abc@gmail.com', then it should get rejected.
I think it can be done using reg_exp but I have messed up with that.
i am facing problem with date column.when i am trying to do execute a query this works fine
select null as link,'S'||to_char(DATE_OF_JOIN,'YY'),COUNT(STUDENT) "Blue Acres" from STUDENT_RECORD where PROCESSOR=1 and DATE_OF_JOIN >= to_date('0620' || to_char(sysdate, 'YYYY'), 'MMDDYYYY') and DATE_OF_JOIN < to_date('0920' || to_char(sysdate, 'YYYY'), 'MMDDYYYY') group by to_char(DATE_OF_JOIN,'YY')
and when i am trying the below query its showing the only this year dates its not referring the previous years
select null as link,'S'||to_char(DATE_OF_JOIN,'MMDDYY'),COUNT(STUDENT) "Blue Acres" from STUDENT_RECORD where PROCESSOR=1 and DATE_OF_JOIN >= to_date('1220' || to_char(sysdate, 'YYYY')-1, 'MMDDYYYY') and DATE_OF_JOIN < to_date('0320' || to_char(sysdate, 'YYYY'), 'MMDDYYYY') group by to_char(DATE_OF_JOIN,'MMDDYY')
when i am trying below query its showng the error ORA-01843: not a valid month
select null as link,'Fall'||to_char(to_char(DATE_OF_JOIN,'YY')-1),COUNT(STUDENT) "Blue Acres" from STUDENT_RECORD where PROCESSOR=1 and DATE_OF_JOIN >= to_date('0620' || to_char(sysdate, 'YYYY')-1, 'MMDDYYYY') and DATE_OF_JOIN < to_date('0920' || to_char(sysdate, 'YYYY')-1, 'MMDDYYYY') group by to_char(to_char(DATE_OF_JOIN,'YY')-1)
I'm creating oracle form to allow the user to register a new record in a table, I want to check the duplication in Four tables! which means, the user is able to save the record if it's NOT already registered in the other four tables.By checking P_ID (user parameter). this is my
Declare
v_count number;
begin
select count(*) into v_count ---Checking the 1st table
from 1_table
where p1_id=:p_id;
if (v_count>0) then
message ('Duplicate');
[code]....
I have a function that is being called three time using UNION and wanted to know if this can be improved to just one call while incorporating all the table joins.
select field1,fdate,fname,username,stepnum from (
SELECT M.FIELD1,
TO_CHAR (M.FIELD_DATE, 'MM/DD/YYYY HH24MISS') AS FDATE,
M.FIELDNAME AS FNAME,
M.USERNAME,
While I am inserting and updating the values in the oracle database its showing a message 'FRM-40401 - No changes to save.' I don't want this message to be shown. How can I do that?
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