11g - Dynamic Field Reference
Jul 21, 2011
I am working on an application that requires very dynamic access to data. Users will build queries through the interface and the queries will be stored in VARCHAR fields for later use. The function that later uses the query has no way of knowing the field names or data types used in the selection query.
This isn't an issue in any program language that I have used before but in this case, we want to do this in a package within Oracle rather than an external application.
how to reference a field by its location or position in the query.
We need to get the list of fields so we know what each field is named and we need to be able to get at its value dynamically as well. If possible, checking the data type would be useful too but that is less important in this case.If we were doing this in say PHP, we could simply reference the query row and use a command like...
foreach($myrow as $field=>$value)
and this would walk through each field in the row giving us the field name and its value.We need to do this same type of thing in our package.
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Mar 6, 2013
I've successfully created the below two tables (disregard my use of "char" variable type; beyond the scope of my question):
create table Test_req (
Req_ID varchar2(4) not null,
Req_Comment varchar2(50) null
);
create table Test_n_cycle (
Req_ID varchar2(4) not null,
[code].....
Then I successfully performed the two alter statements:
Alter table test_n_cycle
add constraint test_n_cycle_pk primary key (req_id, test_id);
Alter table test_req
add constraint test_req_pk primary key (req_id);
Then tried this freign key reference statement
Alter table test_n_cycle
add constraint
foreign key (req_id) references test_req (req_id)
Error report:
SQL Error: ORA-00902: invalid datatype
00902. 00000 - "invalid datatype"
Is this because req_id is also defined in the Primary key definitions on these two tables, thus making the field not valid for referential constraint definition?
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Jul 20, 2010
I have one requirement.I am populating LOV dynamically for the subinventory field in the order form through custom.pll.
If Dropship flag= 'Y' then populate suninv LOV with D1,d2..values.If it is 'N' then populate suninv LOV with w01,w02,....values.This is done and working fine in the form.But If i save dropship flag='Y' and Subinv value is D1 then it saves the record.Now I am changing Drop ship flag as 'N' then 'D1' value appearing in the SUBINV field.and it allow the save changes.
So How can i refresh Lov at the time of making drop ship flag as 'Y'/'N'?
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Apr 26, 2010
In the query below, I'm attempting to replace task codes with task descriptions by left joining to a multi-purpose control table.
In our corp, the description for the task code varies based on the value of change_program in each record, so rather than referencing the value of code_index.tabl statically as I do in the query below (201), I need a dyanamic variable to be defined for each record based on the value of work.change_program, which would represent the value for code_index.tabl.
For each record
if change_program =1 then v_tabl = 201
elseif change_program =2 then v_tabl = 202
elseif change_program =3 then v_tabl = 203
else v_tabl = 201
how to declare and use variables.
SELECT account,
change_program,
task_code_01,
task_code_02,
task1.longdesc,
task2.longdesc
FROM work
[code]....
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Sep 13, 2012
for a text field of a, wizzard generated, tabular form i created a dynamic action when lost focus. using a jquery selector to bind the da to the item in every row when the event fires some jscript and pl/sql code is executed. this all works like charm for existing rows.
but how can i bind the da to the field for newly added rows?a sc of the definition of the da can be found here [URL]...
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Apr 8, 2013
I'm using dynamic sql (DBMS_SQL) to define columns of ref cursor. It works Ok but the problem is when i'm using PL/SQL CURSOR in the REF CURSOR. Then,I'm getting :
Error at line 3
ORA-00932: inconsistent datatypes: expected NUMBER got CURSER
ORA-06512: at "SYS.DBMS_SQL", line 1830
ORA-06512: at "TW.PRINT_REF_CURSOR", line 28
ORA-06512: at line 9
Here is my code:
set serveroutput on
exec DBMS_OUTPUT.ENABLE(1000000);
declare
l_cursor sys_refcursor;
begin
[code]....
Is there a solution or bypass?
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Apr 23, 2010
Even though i am using COL1 CHAR(500) NULLIF COL1=BLANKS, then also i am getting same error for those columns.
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Dec 19, 2011
Two tables: article i mutations
Article:
artno descr qty sales
1 beer 1 5
2 coke 1 7
3 wine 1 4
4 beer ct 12 2
5 coke ct 6 3
6 wine ct 12 2
7 beer pl 336 1
8 coke pl 336 0
and mutations:
artno mutation
1 4
1 7
2 5
2 8
3 6
I want to get the result like
article sales
beer 365 '5+2*12+1*336
coke 25 '7+3*6
wine 28 ' 4+2*12
How to do a query.
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May 3, 2013
I have a table where i need to update one field values based on another field of the same table , simply as it is.I have done this using one select all check box , on clicking that all check boxes of item_trans table will get selected , then i will un select some of check box and then using one button, i will update the value of the fields which are checked only.
I have put the sample code but when i am updating its taking long time and hanging.I am also attaching the form based on the test case provided.
--tables with insert statement
create table item_trans (trans_item varchar2(12),trans_qty number,trans_act_qty number)
insert into item_trans(TRANS_ITEM,TRANS_QTY,TRANS_ACT_QTY) VALUES ('TREE1',40,NULL);
insert into item_trans(TRANS_ITEM,TRANS_QTY,TRANS_ACT_QTY) VALUES ('TREE2',20,NULL);
insert into item_trans(TRANS_ITEM,TRANS_QTY,TRANS_ACT_QTY) VALUES ('TREE3',20,NULL);
--i want to set the value of trans_Act_qty as trans_qty
--i create one dummy or test block to keep the select all check box. for that table test script is
CREATE TABLE TEST
(
C VARCHAR2(2000 BYTE),
B NUMBER,
A NUMBER
);
insert into test (C,B,A) values ('A',1,1);
--code written in select all check box which is created on test.block.
BEGIN
GO_BLOCK('item_trans');
FIRST_RECORD;
LOOP
:M_END_YN := :M_END_ALL;
[code].......
--code written in M_END_YN ( actual check boxes where i will uncheck).
IF :M_END_YN = 'N' THEN
:M_END_ALL := 'N';
END IF;
--code written on button to update those values which are checked.
BEGIN
GO_BLOCK('item_trans');
FIRST_RECORD;
LOOP
IF :M_END_YN = 'Y' THEN
[code]......
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May 9, 2013
I am New to Apex. Im using Apex Version 4.2.
I have a tab named APPROPRIATIONS it has 10 fields. Among which is PROJECT NUMBER, AUTHORIZAION DATE (CALENDER TYPE POPUP), And FUNDS CHECK FLAG.
The Scenario is depending upon PROJECT NUMBER the Fields are Populated including FUNDS CHECK FLAG .
But the AUTHORIZAION DATE is a MANDATORY field has to be filled by User
The Requirement is to make AUTHORIZAION DATE as MANDATORY only when the FUNDS CHECK FLAG is *"BLANK "* or *“Y”*
If the FUNDS CHECK FLAG is *“N”* then the AUTHORIZAION DATE to be made OPTIONAL.
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Jan 20, 2011
how I can write a query that get a column data point to another column data in a csv file? For example:
Column A Column B
First Name Mike
Last Name Smith
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Sep 8, 2013
update one table with reference to another.
Table1:event_channel
Table2:event_inst
I have to update event_channel one column with 4 record(channel_type_id,values 1,2,3,4) with respect to one record of event_inst table column(event_instance_id).
event_inst table column(event_instance_id) has respective 4 records in event_channel
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Dec 24, 2010
I simulated a sample procedure for my requirement.When i try to compile procedure it throws error 'cannot mix single and multiple rows ( bulk) into'...I have to pass a table as dynamic in a cursor ,collect the data and process it using and forall.
create table dynamic (emp_name varchar2(20),emp_id varchar2(20), tel_no varchar2(20);
create table dynamic_1 (emp_name_1 varchar2(20),emp_id_1 varchar2(20), tel_no_1 varchar2(20);
insert into dynamic values ('Mike','1','123456');
insert into dynamic values ('Nike','2','1234567');
create or replace PROCEDURE proc_1(t_name varchar2) IS
TYPE parent_rec IS RECORD (part_num dynamic.emp_name%type,part_name dynamic.emp_id%type,part_id dynamic.tel_no%type) ;
p_rec parent_rec;
rec_array SYS_REFCURSOR;
BEGIN
OPEN rec_array FOR 'select EMP_NAME, EMP_ID,TEL_NO FROM '||t_name ||' WHERE EMP_ID = ''1''' ;
[code]....
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Jun 6, 2011
I use some quantity of functions with list of account id like in example below. Some functions use the same account id list, some use another. Everything works fine except those days when changes come and lists should be updated. Then I should edit each function... I think about creating new table for reference list like
CREATE TABLE MYREFERENCELIST
AS
SELECT XXXX AS ACCOUNTID, YYYY AS LIST1 FROM DUAL
UNION ALL
SELECT ZZZZ AS ACCOUNTID, UUUU AS LIST2 FROM DUAL
FUNCTION ACCOUNTID
(arc_date date,
cid number )
RETURN NUMBER
AS
[code]..........
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Mar 18, 2013
I have two tables A and B. In table A there is a field which contains a string of 20 characters; this essentially holds 5 codes of 4 characters each.
Table B is a reference table. It holds the 4 character code and the description.
I am trying to run a select query to bring back the description of the code for the first 2 codes in table A but i am not sure how to bring back the descriptions! The below is what i am trying to achieve.
SELECT
TableA.ID,
SUBSTR(TableA.Code,1,4) Primary_Code,
[Code].....
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Sep 13, 2012
I have a table DW_ORDER_CHANNEL and I need to know what are the other objects accessing this table. As i need to alter this table so the dependent objects get invalid. how to get the dependent object on this table?
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Apr 23, 2009
I need to update a field with the 1st 9 characters of another field in the same record.
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Nov 14, 2011
I have a table called Customer_Type with following fields
Customer_type ,Active_date, Inactive_date
regular,11/01/2011
daily,11/04/2011
monthly,11/05/2011/11/11/2011
Tbale 2:Customer
Customer_name,Customer_type,Customer_Inactive_date
John,regular,
James,monthly,
Jake,daily,
Jill,monthly
What i wnat is to update the Customer_inactive_date with the Incative_date field from Customer_type based on their Customer_type... So james and Jill would have their rows updated in this scneario ..How can i achive this in pl/Sql
I have teh code using merge function..I want something in traditional old fashion..
The sql statements are below
CREATE TABLE CUSTOMER_TYPE
(
type_code VARCHAR2(10),
[Code]....
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Sep 24, 2013
problem with populating the collection object.
I am getting an error -
'ORA-06530: Reference to uninitialized composite"
My Code is as below
create type test_t as object (empno number, ename varchar2(20))
/
create type test_tt as table of test_t
/
create or replace procedure test_p
is
[code]....
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Jun 25, 2012
I have the following table:
CREATE TABLE test_A(member_id NUMBER(2) PRIMARY KEY, MEMBER_name VARCHAR2(20), MEMBER_parent NUMBER(2) DEFAULT NULL);
INSERT ALL
INTO test_A VALUES (1, 'mem1', NULL)
INTO test_A VALUES (2, 'mem2', NULL)
INTO test_A VALUES (3, 'mem3', NULL)
INTO test_A VALUES (4, 'mem4', 1)
INTO test_A VALUES (5, 'mem5', 1)
[code]....
As the actual data is huge, I need to know the best (least expensive) way to select each parent and then all its direct child ordered by member_id the output should look like:
1mem1(null)
4mem41
5mem51
6mem61
2mem2(null)
7mem72
8mem82
10mem102
3mem3(null)
9mem93
11mem113
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Apr 18, 2011
I have created the following partition. but i want to alter in future . how to alter the reference partition. is it avilable in reference partition.
CREATE TABLE EMD_FILE_LOAD_DETAILS_PR
(
FILE_REFERENCE_ID ,
FILE_NAME ,
FILE_TYPE ,
FILE_GROUP_NAME ,
[Code]...
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Feb 19, 2013
When I am executing below code it is working fine
DECLARE
CURSOR C1 IS
SELECT EMPLOYEE_ID FROM EMPLOYEES;
TYPE EMP_ID_TYPE IS TABLE OF EMPLOYEES.EMPLOYEE_ID%TYPE INDEX BY BINARY_INTEGER;
TABLE_EMP_ID EMP_ID_TYPE;
BEGIN
[code].....
But when i am executing below code it is showing error as subprogram or cursor 'C1' reference is out of scope
DECLARE
CURSOR C1 IS
SELECT EMPLOYEE_ID FROM EMPLOYEES;
TYPE EMP_ID_TYPE IS TABLE OF EMPLOYEES.EMPLOYEE_ID%TYPE INDEX BY BINARY_INTEGER;
TABLE_EMP_ID EMP_ID_TYPE;
BEGIN
[code].....
The only difference in above two blocks is that EXIT WHEN Statement.
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Mar 1, 2013
I am getting the error ORA-06531: Reference to uninitialized collection while calling a table function which is of collection type.
CREATE OR REPLACE FUNCTION FN_GET_LINK_SYS_ID
RETURN PGIPK_DM_PROCESS.DM_SYSID
PIPELINED IS
T_SYS_ID PGIPK_DM_PROCESS.DM_SYSID;
BEGIN
T_SYS_ID := PGIPK_DM_PROCESS.DM_SYSID();
[code]....
Definition of Type is below
--NESTED TABLE TO STORE SYS_ID S OF TABLE
TYPE TAB_SYS_ID IS RECORD(
POL_NO VARCHAR2(60),
POL_END_NO_IDX NUMBER,
PSEC_SEC_CODE VARCHAR2(30),
PRAI_RISK_ID VARCHAR2(10),
[code]....
when i m writing select * from table(FN_GET_LINK_SYS_ID) , its throwing ORA-06531: Reference to uninitialized collection.
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Jun 2, 2009
CREATE OR REPLACE FUNCTION CALC_PLAYER_AVG
(V_ID in PLAYER_BAT_STAT. PLAYER_ID%TYPE)
RETURN NUMBER
IS
V_AVG NUMBER;
[code]...
This function must be moved to a package. Which additional statement must be added to the function to allow you to continue using the function in the group by the clause of a select statement?
A. PRAGMA RESTRICT_REFERENCES (CALC_PLAYER_AVG, WNDS, WNPS);
B. PRAGMA RESTRICT_REFERENCES (CALC_PLAYER_AVG, WNPS);
C. PRAGMA RESTRICT_REFERENCES (CALC_PLAYER_AVG, RNPS, WNPS);
D. PRAGMA RESTRICT_REFERENCES (CALC_PLAYER_AVG, ALLOW_GROUP_BY);
Answer: A
----I had gone through this question in dumps,about PRAGMA_RESTRICT_REFERENCES, but i m not aware of WNDS, WNPS..or reference for this term, & how it works in above exampl
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Aug 19, 2012
is it in Orcale not possible to refenerence two tables in a with clause?
With CTE
AS
(
Select ...
),
[code]...
If I do a select on my first table I get this error: ORA-32035: unreferenced query name defined in WITH clause - With CTE AS
In Sql Server it works fine ...but how can I create two CTE Tables in Orcacle?
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Oct 1, 2011
I have to create a function which count the max id in the provided table.
For example: I have two table customer and book
and
create or replace function Row_Count(tab_nam) return varchar2 is
CONTR_NO varchar2;
begin
select NVL(MAX(t.contract_num), 0) + 1
INTO CONTR_NO
FROM tab_nam t;
return(CONTR_NO);
end Row_Count;
when I call
Function( customer) ;
or
Function( book) ;
It should tell the max number with addition of one.
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Jul 8, 2013
I am using oracle 10G version. when i compiled the code I got the error "PLS-00487: Invalid reference to variable 'PROGRAM.MWPRG_PROGRAM_ID%TYPE'
correct the below PLSQL error code (marked Bold)?
PLSQL procedure:
===================
create or replace
PROCEDURE SPT_PROGRAM
IS
[code]....
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May 6, 2011
I'm trying to determine if/when a possible Hierarchical circular reference will occur in my data
Sample Hierarchical structure that I have
Emp -> Supv
A
BA
CB
DC
EC
[Code]....
Finally, to my question. It seems that I can detect the problem After it happens but do I need a trigger on the update statement to detect if/when a possible circular reference will occur?? or can I run a sql statement prior to update to detect possible circular reference?
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Jul 2, 2012
When I am trying to create a public synonym for a package then I am getting this error. This error tells us that non editioned object(Public Synonym) can not refenrence the editioned object(Package in this case).One of the solution provided on one of t he site is to create local synonym instaed of public synonym but I need to create public synonym only.
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Jun 8, 2011
I need to know how to capture the Parameter Value of a Procedure in a Variable and reference that variable in another Procedure or Package.
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