ODP.NET :: Null Values In (ref) Attributes - C# Odp Type Factory?
Nov 22, 2012
I'm using the odp.net type factory (class IOracleCustomType and the specific annotations...) to map udts to c# classes.By now I had no problems with it, because I've never used "ref" attributes within the udts.Now I need the use of "ref" attributes within udts but it seems that the odp factory cannot handle those references.
For example:_*
A Simple Type:
create or replace type bookcontent_t force as object (
id number(20)
, name varchar2(1000)
);*And a collection with references to objects of this type:*
create or replace type fms_bookcontent_ref_cln force as table of *ref* bookcontent_t;The c# class is generated by odp.net.
When I retrieve data by using odp.net I get a collection with the correct number of elements but the values are null.What can I do to solve this problem with "ref" attributes/lists? How can I get the referenced object instances?
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Jan 2, 2013
I have 3 user defined collection types. I am trying to access the type3's attribute in type1 body (like backward accessing).
Ex. My Collection Types Structure (something like master detail structure)
create type type1 as object
(
attr1 varchar2(10),
attr2 varchar2(10),
member procedure function1
[code]...
so, in the type1 body i have to get or assign the value either to type2's attribute or type3's attribute. I have search all the in internet but i haven't find anything such. how to find the reverse method of accessing the super type's attribute(s) in sub type's body.
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Oct 29, 2013
MY requirment is: I want the first three nullable attributes. For Eg: If I have 60 columns in table, I need to fetch the first three null data in a row.
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Mar 8, 2013
I have created the below types and oracle objects.
create or replace type T_EMA_NP_SETDEL_RESP_REC as object
(
respCode number,
respDesc varchar2(255)
)
create or replace type T_EMA_NP_RANGE_LNPTICKET_TAB AS TABLE OF T_EMA_NP_RANGE_LNPTICKET_REC
create or replace type T_RANGE_TICKET_TAB AS TABLE OF T_RANGE_TICKET_REC
The following types are created in the Package specification
type t_resp_rec IS RECORD
(
resp_code number,
resp_desc varchar2(255)
);
--
subtype t_ema_lnpticket is T186_IN_REQ_PARAMETER.T186_EMA_LNPTICKET%TYPE; -- Number
type t_ema_lnpticket_tab is table of t_ema_lnpticket index by binary_integer;
I have the following two procedures
PROCEDURE getEMAReturnResponse(
p_in_call_request_id IN number,
p_ema_resp_rec IN t_ema_np_setdel_resp_rec,
p_ema_range_lnpticket_tab IN t_ema_np_range_lnpticket_tab,
p_endof_event IN varchar)
PROCEDURE Return_Response(p_in_call_request_id IN number,
p_ema_resp_rec IN t_ema_resp_rec,
p_ema_lnpticket_tab IN t_ema_lnpticket_tab,
p_endof_event IN varchar2)
getEMAReturnResponse Procedure:
Accessed by Java application to pass the values. Should call the Return_Response procedure and pass the values received from Java.
Return_Response Procedure
The p_ema_lnpticket_tab is a sort of array that can have multiple values. Please see the example of values. Has all the business rules and validation that should be adhered.
Example of Vaules
p_in_call_request_id = 1
p_ema_resp_rec = 12345, 'Operation Failed'
p_ema_lnpticket_tab = (1,2,4,5)
p_endof_event = Y
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Mar 8, 2013
I have created the below types and oracle objects.
create or replace type T_SETDEL_RESP_REC as object
(
respCode number,
respDesc varchar2(255)
)
--
create or replace type T_EMA_NP_RANGE_LNPTICKET_REC as object
(
ticket number
)
create or replace type T_RANGE_TICKET_TAB AS TABLE OF T_RANGE_TICKET_REC
The following type is created in the Package specification
type t_resp_rec IS RECORD
(
resp_code number,
resp_desc varchar2(255)
);
I have the following two procedures
Procedure getResponse(p_call_request_id IN number, p_resp_rec IN t_setdel_resp_rec,
p_range_ticket_tab IN t_range_icket_tab, p_endof_event IN varchar)
PROCEDURE ProcessResponse(p_call_request_id IN number, p_resp_rec IN t_resp_rec,
p_ticket_tab IN t_ticket_tab, p_endof_event IN varchar2)
The get Response procedure is a wrapper procedure exposed to Java to pass values. The Process Response procedure is a main procedure where all logics and business rules are handled.
The Problem is:
How can I pass the values from get Response procedure to Process Response procedure. So that rules and validations are applied. Please note the p_ticket_tab may have many ticket numbers corresponding to p_call_request_id.
Values E.g. :
p_call_request_id = 1
p_resp_rec (1234, 'Error found')
p_range_ticket_tab (1,2,3,4,5)
p_endof_event = 'Y'
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Dec 3, 2010
I have a scenario where I have to get all the available dates of a resource. I am using the below query to get it.
Select Avail_Date AS MONTH
, Resource_Id
FROM res_tsk
, (SELECT Rownum - 1 + TRUNC (sysdate) avail_date
FROM Dual
[code].......
The result of this is:
Month Dates Resource_ID
12/3/10 0:00 NULL
12/4/10 0:00 NULL
12/5/10 0:00 NULL
12/6/10 0:00 100033868
As I am doing a outer join, if the resource is not available on a particular day the resource_id is coming as NULL as it is not available. Is there any way to populate this NULL resource_id with the original resource_id as the resource_id is same for all the result set.
I need the output to be
Month Dates Resource_ID
12/3/10 0:00 100033868
12/4/10 0:00 100033868
12/5/10 0:00 100033868
12/6/10 0:00 100033868
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Jan 5, 2011
Let me know in PL/SQL how can we set a Table Type record to NULL?
Also, if .delete makes it NULL?
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Jul 17, 2012
I have few questions regarding PL/SQL tables
1) If I don't specify the "INDEX BY" clause, it is indexed by PLS_INTEGER by default, right?
2) Consider this package specification
CREATE OR REPLACE PACKAGE Testxyz AS
TYPE tab_Numbers IS TABLE OF PLS_INTEGER;
PROCEDURE TestNumber(ptab_Numbers IN tab_Numbers := NULL);
END Testxyz;So I created a table (I hope it is defaultly indexed by pls_integer data type) and I am passing it as a parameter to a procedure. Because I want this parameter to be optional I am assigning null into it.
Now I change the definition of the table to:
CREATE OR REPLACE PACKAGE Testxyz AS
TYPE tab_Numbers IS TABLE OF PLS_INTEGER INDEX BY PLS_INTEGER;
PROCEDURE TestNumber(ptab_Numbers IN tab_Numbers := NULL);
[code]....
3) Because I need this parameter to be optional, I use the first declaration:
CREATE OR REPLACE PACKAGE Testxyz AS
TYPE tab_Numbers IS TABLE OF PLS_INTEGER;
PROCEDURE TestNumber(ptab_Numbers IN tab_Numbers := NULL);
END Testxyz;
Now I create an anonymous block and want to assign something into the table
DECLARE
vtab_Numbers TESTXYZ.tab_Numbers;
BEGIN
vtab_Numbers(1) := 5;
END;
/When trying to run this, I got:
06531. 00000 - "Reference to uninitialized collection"
Is it possible to have input parameter of PL/SQL table type and have defaultly null assigned to it?
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Apr 20, 2007
i have a stored proc where i am selecting a value into a variable like so:
SELECT FUNCTION
INTO V_FUNCTION
FROM FUNCTION_TABLE
WHERE FUNCTION = P_INPUT;
Now, my problem lies in where there is no value returned (oracle will throw an error).
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Jan 23, 2013
I have 2 tables, AFF_TEMP and COUNTY
AFF_TEMP has the following columns FNAME, LNAME, EMAIL and COUNTY
COUNTY has 2 columns COUNTY_ID and CNAME
Both tables have the following test data
AFF_TEMP
Joe, Bloggs, joe@gmail.com, ''
Ann, Bloggs, anne@gmail.com,Donegal
and COUNTY column in AFF_TEMP can contain a NULL value
County table has the following Test data,
1, Dublin
2, Donegal
3, Tipperary,
4, Galway
I am trying to select the following from both tables FNAME, LNAME, EMAIL, COUNTY_ID.Tried the following queries
select a.FNAME, a.LNAME,a.EMAIL, C.COUNTY_ID FROM temp_aff A LEFT OUTER JOIN COUNTY C ON A.COUNTY=C.CNAME
OR (A.COUNTY IS NULL)
select a.FNAME, a.LNAME,a.EMAIL, C.COUNTY_ID FROM temp_aff A, COUNTY C
WHERE C.CNAME IN (SELECT UPPER(A.COUNTY) FROM TEMP_AFF A)
[code]...
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Apr 23, 2010
Is there a way to replace a field with another if the particular value returned is null?
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Dec 17, 2010
We are working on a migration project and we need to move 75 million rows from source system to target system.
Total number of columns in source system - 90 cols.
Out of the 90 columns 10 cols are system fields and rest 80 are properties for each record.
We are required to migrate all system cols and some required properties. In total we will migrate around 25 columns[10+15] for each record.
Before actaul migration , we need to do a data cleansing activity and hence we move the data to a staging table.
To create the staging table, we considered the below appraoches.
1. Create the staging table with around 30 coloumns so as to fit the data from source system[map the columns based on datatype]
2.Create the staging table with actual columns[90 columns] and import only the required properties. The rest all columns will remain NULL.
Do the data cleansing and move to target system.
My question here is, if we go with approach 2, We will not mix the data, as there will be a one-to-one mapping. But many columns will not have data and remain NULL. Will it affect the performance since we deal with 75 million rows.
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Jul 28, 2010
I have a table abc with two column (marks,id) both can have any value.
Value of the id column is zero at several places.When I divide marks by id. I get divide by zero error.
how to replace zero with null.
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Jul 20, 2012
I have main query..And i written a Query for Issued Quantity. The query is retrieving exact data. And when i add the Query in main query the data is coming with extra null values.
for ex. Query for Issued Qty fetch 16 records. and i run the main query it fetch 20 records...there r 4 records which issued Qty is null. How can i restrict that records.
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Aug 5, 2010
My query is ignoring the null value
CODEselect count(*) as COUNT from EMP where EMP_ID in '1001,1002,1003'
returns the result as
CODECOUNT
----------------------
0
1
2
EMP_ID '1001' has 0 records(i.e., EMP_ID 1001 doesnt exists in the table)
EMP_ID '1001' has 2 records
EMP_ID '1001' has 3 records
where as the query
CODEselect count(*) as COUNT, EMP_ID from EMP where EMP_ID in '1001,1002,1003' group by EMP_ID
returns the result as
CODECOUNT | EMP_ID
---------------------
1 | 1002
2 | 1003
I want the null value also to be counted when I run the second query i.e., the output should be like
CODECOUNT | EMP_ID
---------------------
0 | 1001
1 | 1002
2 | 1003
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Jun 11, 2010
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
PL/SQL Release 11.1.0.6.0 - Production
"CORE 11.1.0.6.0 Production"
I have Event_month, Event_date in SELECT statement. Results of the query has NULL values as well.. I am doing ORDER BY Event_month, and I want NULL values to be at the top..
SELECT d.event_code_dt, count(d.event_number) count1
FROM main_event a,sec_event d
WHERE a.event_id = d.event_id(+)
GROUP BY d.event_code_dt
ORDER BY d.event_code_dt, count(d.event_number) desc
Results are like this
11-MAY-10
21-MAY-10
22-MAY-10
NULL
And I want results to be like this:
NULL
11-MAY-10
21-MAY-10
22-MAY-10
Same thing happens with Event_month
NULL
Feb 2009
Aug 2009
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Aug 23, 2010
How can I use OR condition in sql to check whether if the 6 col values in a row is NULL, I need something like below, but idk the syntax of checking if either of the mentioned cols is null using an or condition.
select a.mid
FROM table_a a
JOIN table_b b
ON a.dept = b.dept
JOIN table_c c
ON b.eid = c.eid
WHERE a.tid = :tid
AND (a.i1 or a.i2 or a.i3 or a.n1 or a.n2 or a.n3 or a.t1 or a.t2 or a.t3 ) IS NULL
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Jun 17, 2010
There is a table with column holding 3 NULL values one each in every record. When a count function is applied to the column with a filter on NULLs,it returns 0 instead of 3.
But when count(*)is applied,expected result is returned. Would be interested in knowing about this strange behavior of NULL/Count.
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Dec 29, 2012
My DB version is 10.1.0.5.0
I want extract the values from the string using below query but i am unable to bring the correct result.
WITH t AS ( select '123,1,3,22' col FROM DUAL
UNION ALL
SELECT '123,,2,1' FROM DUAL
UNION ALL
SELECT '5,1,2,,' FROM DUAL
)
[Code]...
My required result like below.
123 1 3 22
123 2 1
5 1 2
get required result using regular expressions.
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Mar 12, 2010
Our organization is attempting to learn more about the partitioning features of Oracle 11g. I've been reading the partitioning manuals, and I have not found a clear answer on this topic, but I suspect I know the answer.
If you create a range partitioned table; using interval partitioning, say something like this:
CREATE table range_parti (
CODE NUMBER(5),
DESCRIPTION VARCHAR2(50),
CREATED_DATE DATE)
PARTITION BY RANGE (created_date)
INTERVAL (NUMTOYMINTERVAL(1,'MONTH'))
(
PARTITION my_parti VALUES LESS THAN (TO_DATE('01-NOV-2007','DD-MON-YYYY'))
);
but you try to insert a null value as the partition key, you get the following error:
SQL> INSERT INTO range_parti VALUES (1,'one',NULL);
INSERT INTO range_parti VALUES (1,'one',NULL)
*
ERROR at line 1:
ORA-14400: inserted partition key does not map to any partition
Elapsed: 00:00:00.07
Is there no way to tell it to use a default partition for NULL values? Or specifically designate a partition for NULL values WITHOUT having to manually list out each partition? It seems it works if you don't use the INTERVAL keyword, list out your partitions, and use MAXVALUE. However, our hope to avoid having that as it creates monstrously huge DDL statements for tables that have lots of date ranges, and we will be forced to manually add new partitions each month as data is added/time passes.
It appears from my experience so far, if your column can allow nulls, you cannot use interval range partitioning on that column.
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May 18, 2010
I use a cursor to select records from a database table into a C structure as follows...
{
int iLoop = 0;
int iResult = 0;
[Code]....
The otc_multiplier field is NULL. As is the to_date sometimes. However, when I output the records later, the entries where the to_date is NULL come out fine (no value). But the otc_multiplier is getting output as 0.0 using...
// this is output later in another fuction using the following..
sprintf(newRecord, "%.1f",daServiceRecs->itemMultiplier);
If using c structures in this manner, what is the method for ensuring that numeric values are set to NULL when required?
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Jun 21, 2010
I have a report in report 6 which has static field where values are shown for previous year and for current year. the output of the report will be like this
sl no department prev year cur year
01 revenue 2000 5000
02 costing 500 1000
03 excise 8000 900
and so on....
I have a created a fomula field for each and every department and get the value from a particular table. What i require is if suppose the department revenue does not have any value then that row should not be visible. for eg if revenue has a null value then the report should be like this
sl no department prev year cur year
01 costing 500 1000
02 excise 8000 900
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Jul 5, 2012
Below given is the sample data
SELECT *
FROM
(
SELECT 1 ORDR_ID, TO_DATE('01-JAN-2012', 'DD-MON-YYYY') INWD_DATE, 5 SIZE_, 'APD' Colr_CD FROM DUAL UNION ALL
SELECT 1 ORDR_ID, TO_DATE('15-JAN-2012', 'DD-MON-YYYY') INWD_DATE, NULL SIZE_, 'KPD' Colr_CD FROM DUAL UNION ALL
SELECT 1 ORDR_ID, TO_DATE('16-JAN-2012', 'DD-MON-YYYY') INWD_DATE, NULL SIZE_, 'ALD' Colr_CD FROM DUAL UNION ALL
SELECT 2 ORDR_ID, TO_DATE('02-JAN-2012', 'DD-MON-YYYY') INWD_DATE, 9 SIZE_, 'APD' Colr_CD FROM DUAL UNION ALL
SELECT 2 ORDR_ID, TO_DATE('05-JAN-2012', 'DD-MON-YYYY') INWD_DATE, 10 SIZE_, '' Colr_CD FROM DUAL UNION ALL
[code]....
Where every first row is the initial entry for an order and following rows are the changes done to the order with modification date
And the expected output is
ORDR_ID Start_date End_date SIZE_ COLR_CD
1 01-01-12 01/15/2012 5 APD
1 01/15/2012 01/16/2012 5 KPD
1 01/16/2012 00-01-00 5 ALD
2 01-02-12 01-05-12 9 APD
2 01-05-12 01-06-12 10 APD
[code]....
I cam use a select statement within select, but wanted to write an efficient SQL...
I'm using
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0
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May 3, 2012
As per NULL values concept
One NULL value is not equal to other NULL value.
But how DISTINCT and UNION eliminating NULL values.
Then how UNIQUE key constraint accepting more than one NULL value..
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Oct 12, 2012
I have a table something as below
Things_t
Things Characteristic Char Value
Item 1 Colour Red
Item 1 Packaging
Item 2 Shape Square
Item 2 Brand Spunk
Now i want to reterive an item with none of its char values as Null. Using the query “ select distinct things from things_t where char value is Null ” will fetch the item 1 also together with item 2. i want to fetch a record from thing for which none of the char values are Null such as Item 2.
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Dec 22, 2011
I have a table with multiple rows for the KEY attribute(its not a primary key) and a Rank for each row.
I want a query which fetches one row per KEY attribute.The row with lesser Rank should be considered. But in-case if the value is null for any column the value for next Rank should be considered.
WITH TMP_TBL AS
(
SELECT * FROM (
SELECT 'A' DUN,'1' RNK,'A21' col1,NULL col2,'A41' col3,NULL col4 FROM dual
UNION ALL
SELECT 'A','2','A122','A23',NULL,NULL FROM dual
UNION ALL
SELECT 'A','3','A32','A33',NULL,'A35' FROM dual
[code].......
DUN is the KEY attribute . RNK is the Rank for each Row. COL1... COL4 are data attributes
The results I am expecting is
DUNCOL1 COL2 COL3 COL4
AA21 A23 A41 A35
BB12 B23 B15
CC12 C13 C33 C14
I want this to be done with SQL only. So I tried various ways but none were successful.Finally I created a Multi Row function row_nvl and it worked.
SELECT DUN,
row_nvl(rownvl_param_type(RNK,col1)),
row_nvl(rownvl_param_type(RNK,col2)),
row_nvl(rownvl_param_type(RNK,col3)),
row_nvl(rownvl_param_type(RNK,col4))
FROM TMP_TBL
GROUP BY DUN
But I don't think my manager will allow me to deploy a Multi Row function .
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Jul 16, 2009
I am using sql loader to load data to tables from tab delimeted files.
Here the problem is that the sql loader is not handling null values. If there is any null value in the flat file it is moving the field values to left and loading to the table. I am using NVL function to handle the null values, but it is not working.
My control file is:
LOAD DATA
INFILE 'C: da_poc_filesSQL_scriptsSourcefilesTRADEGLOBNODE1.TXT'
BADFILE 'C: da_poc_filesSQL_scriptsBadfilesTRADEGLOBNODE1.bad'
DISCARDFILE 'C:C: da_poc_filesSQL_scriptsDiscardfilesTRADEGLOBNODE1.dsc'
[Code]....
Source file is attached to this link For the attached file in the first record, tradedate value is coming in to tradeprice field
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May 6, 2010
i am doing a data transformation using the following function
FLOOR(ONSET_TPQ-VAX_DATE)
Where ONSET_TPQ and VAX_DATE are both dates. Now in a situation where the ONSET_TPQ precedes VAX_DATE I want the result to be null for those records. As an example if ONSET_TPQ= 2000 and VAX_DATE=2010
I want the result to be NULL as I dont want negative values. Any exact SQl syntax on how to do that. DO i write a case statement?
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Oct 16, 2012
I am using left outer join to fetch PRSN_KEY .I need to find null values in B.PRSN_KEY. I am using below query but its giving me 0 count.
select count(*) from (
Select A.PRSN_KEY AS AKEY,B.PRSN_KEY AS BKEY from CD03955P.H_CM_EEST_EEOR A LEFT JOIN CD03955P.H_CM_EEST_EEOR B
ON
A.PRSN_KEY =B.PRSN_KEY
where
A.CAT_ID=111
AND
A.DATA_SOURCE='PEN_CO'
AND
B.CAT_ID = 1 and B.DATA_SOURCE ='PEN_EEST'
AND B.CAT_CD IN ('ACTIVE','LOA','LOAWP','LOAMLP','LOAMLN')
AND B.EFBEGDT < A.EFBEGDT
)
where BKEY IS NULL
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Feb 6, 2012
We have database with multiple fields containing NULL values and in many queries we have NVL function which in turn is suppressing the index usage when in fact it is really essential (selectying very few rows from massive data) instead of creating lot of Function based indexes (NVL) or composite indexes with (nullable_column, constant) I am thinking of settting a default value for most of the fields In that regard I have some queries :
Which approach is better - setting default value for the fields or updating the fields with default value and modyfing inserts to take care of future data? Though altering table and modifing column to set default value looks better considering it will take care of data inserted in the future, it will invalidate the subroutines.I understand in 10g both statement will generate lot of undo (though in 11g, I heard things changed for setting default value of a column) How to take care of all the queries which are using the criteria 'where column1 IS NULL' or 'where column1 IS NOT NULL'. It will be really difficult task to manually change each and every occurrence of such condition even using user_source.
Finally for numeric values say for ID field which starts from 1 onwards 2,3,4 etc, we can set 0 as sensible default so that the performance is not affected.
Is there such precaution for varchar2 field purely from performance point of view?
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