Select Into With Null Values?

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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Replacing Null Values Of Outer Join With Meaningful Values

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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SQL & PL/SQL :: Function In Oracle To Select Not-null Columns At Beginning And Null Columns At End?

Jul 12, 2012

I have 8 columns. Some of them might be null.I want to display all 8 columns in my result. Not null columns will be first and null at the end.Here is a sample data :

Employee table :
Employee_id Emp_fname emp_lname emp_mname dept salary emp_height emp_weight
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223

The expected result is :
result1 result2 result3 result4 result5 result6 result7 result8
1 aaa ddd d1 100 6 180
2 bbb ccc 120 169
3 dfe d2 5.9 223

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SQL & PL/SQL :: Select Null Value

Feb 18, 2011

I have a sql queries in that i saw one sql querie like this

select columnname,null columnname from tablename

what is the meaning of this which i marked with red (null columanmea)

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Handling NULL Values?

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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Replacing Null Values

Apr 23, 2010

Is there a way to replace a field with another if the particular value returned is null?

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SQL & PL/SQL :: Columns With NULL Values?

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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SQL & PL/SQL :: Replace Zero With Null Values

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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PL/SQL :: How To Restrict Null Values

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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Select Only Non-null Columns?

Sep 19, 2006

I have a table containing hundreds of columns and I would like to be able to qualify my select statements so that only those columns containing a value are returned. Something like:

Select (non null columns) from tablename where columnX = 'whatever'

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SQL & PL/SQL :: Select NULL Using REGEXP_SUBSTR?

Feb 2, 2011

My Database is in Oracle 11g.

My query returns the 3rd field from a CSV string. If the third field in the string is empty I want the select to return a null but it returns the 4th field :

SELECT REGEXP_SUBSTR( 'A,B,,D,E','[^,]+',1,3) from dual;

.. this returns 'D'.

Can we somehow make the REGEX_SUBSTR return a NULL for the third field ?

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Query Ignore Null Values

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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SQL & PL/SQL :: Order By DATE Which Has NULL Values

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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SQL & PL/SQL :: How To Use Or Condition To Check If 6 Col Values In A Row Is NULL

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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SQL & PL/SQL :: Count Function Over NULL Values

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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PL/SQL :: String Having Null Values Between Commas

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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SQL & PL/SQL :: Add Null In Select Based On Certain Condition?

Oct 20, 2011

I got a requirement to check if a particular range of values are present , if few values missing then have to add null for the values. This has to be a SQL statement.

table 1 :

fiscal_month_id, value1, value2
2010100028482848
2010110025712709.5
2010120027452721.3
2011010026052692.25
2011020026382681.4
2011030030992751
2011040027662753.14
2011050029732780.625

This is the table. the fiscal month id denotes that the values is from month Oct(20101000) to May (20110500). The fiscal year cycle for me is from OCT to SEP. Hence when we select this table, the select should retreive the below data

fiscal_month_id, value1, value2
2010100028482848
2010110025712709.5
2010120027452721.3
2011010026052692.25

[code].....

How to do this in a select statement ?

This fiscal_month_ID is actual from another table where all time level information are kept.

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SQL & PL/SQL :: Interval Partitioning And NULL Column Values

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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Precompilers, OCI & OCCI :: NULL Values In C Structures?

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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Reports & Discoverer :: Ignoring Null Values?

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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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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PL/SQL :: Get Not Null Recent Values From History Data?

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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SQL & PL/SQL :: How DISTINCT And UNION Eliminating NULL Values

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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PL/SQL :: Retrieve Item With None Of Its Char Values As Null?

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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SQL & PL/SQL :: Query To Return Not Null Column Values With Priority

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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Server Utilities :: How To Handle Null Values In Sql Loader

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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SQL & PL/SQL :: CASE Syntax - Result To Be NULL As Don't Want Negative Values

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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SQL & PL/SQL :: How To Get Count Of Null Values In Left Outer Join

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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Performance Tuning :: Handling NULL Values In The Database?

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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SQL & PL/SQL :: Query To Display Repeated Column Values As Null?

Dec 13, 2012

I have table with the values as below.

C1C2C3C4
NAMEJOHN10ABC
NAMESMITH30DEF
NAMEROBERT60XYZ

I dont want to print the repeated value(NAME) of C1 multiple times as below.

C1C2C3C4
NAMEJOHN10ABC
SMITH30DEF
ROBERT60XYZ

I could do it using the below query using union with the rownum.

select * from (
select rownum rn, c1,c2,c3,c4 from table_new
) where rn =1
union
select * from (
select rownum rn, decode(c1,null,null),c2,c3,c4 from table_new
) where rn between 2 and 3

Is there any other way of displaying using a single sql query.

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