SQL & PL/SQL :: TRUNC And PLW-07204 (conversion Away From Column Type)
Nov 22, 2010
how I can avoid PLW-07204 "conversion away from column type may result in sub-optimal query plan" (or rather the problem notified here by Oracle) from my PL/SQL code.My code looks as follows:
create table T(D date);
create or replace procedure P is
cursor C(D_IN IN DATE) is
select D
from T
where trunc(D)=SYSDATE;
begin
null;
end P;
[code]...
I don't want to disable the warning - it is there for a reason.
Additional description for the issue: It seems that D is of typ=12, while trunc(D) is of typ=13. You can use DUMP to read this info. This is described at URL....
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Oct 23, 2012
i what to update a column data type am geting this error
ORA-02267: column type incompatible with referenced column type
my query is
when i run
SELECT b.table_name||
' joins to the '||
a.table_name||
' table on '||
c.column_name||
' = '||
d.column_name Table_relationships
[code]....
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Nov 28, 2011
my sql query has three tables in from clause so it has two join conditions and one where condition.
account_no is number data type and v_account_no is varchar2() data type
The where clause is :
"where account_no=to_number(v_account_no)" with this condition in my sql query has the cost 392
we just modify the where clause as where v_account_no=to_char(account_no) with this condition in the sql query has the cost 11.
what is impact of this data type conversion and difference between these two "to_number() and to_char()" in performance wise to reduce the cost of query?
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Jan 13, 2011
SELECT EMPNO ,ESAL,DEPTNO FROM EMP;
O/P
EMPNO ESAL DEPTNO
101 1000 10
I WANT O/P LIKE THIS
REQUIRED O/P
101
1000
10
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Jan 21, 2013
My requirement is to converts row to Column information and sum of column in Weight kg in below manner Data in columns are not of same nature they can keep on changing
Item Supplier Consumer Package DWP_NO DWP_ED Quality_code Pakaging Material WEIght kg
80026020 13984
90225217 21385 1 1 3 Not Applicable 22-paper .001
90218863 16578 1 1 1 Not Applicable 04-low density polyethylene (0.002+.002+.002)=.008
90218349 14507 1 1 1 Not Applicable 05-polypropylene,22-paper (.02+.05) =.07
40221108 21519 3,2,1 1 2 IKEA-CB-60 22-paper (.32+0.3+0.45)=1.07
find table structure
CREATE TABLE TEST_ROW_TO_COL
(
ITEM_CODE VARCHAR2(10 CHAR),
SUPPLIER_CODE VARCHAR2(10 CHAR),
"Consumer Package" NUMBER(2),
[code]...
ans insert statement of sample data
--SQL Statement which produced this data:
-- select * from Test_row_to_col where
item_code in ('80026020','90225217','90218863','90218349','40221108')
[code]...
I am using Oracle 11g
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Oct 5, 2010
Due to some business requirements a table field needs to change from date to timestamp in order to handle the millisecs.
1>When i alter the row , for a table with 150 million recs will there be a conversion. Is there a recommended way to convert the field. Mind you this field is used as a part of composite PK.
2> There is a interfacing application which connects and copies the data to its system and is using the date type, will that application be able to continue to work without any changes, if it does not care about the millisecs.
3> Will there be performance impact on an existing application that uses the date field to sort
4> Will DB need more space due to the change
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Mar 12, 2011
The reason to use the the trunc function along with the SYSDATE.
E.g. :- TRUNC(SYSDATE).
Why we need to set the current date into midnight? Where we can use this method?
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Jun 10, 2013
which of the statements TRUNCATE and TRUNC are SQL ISO ANSI compliance ?is Truncate a function or a statement ?
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Aug 6, 2012
I am using trunc(sysdate) to load only date in a column and it is coming out with error.
SQL*Loader-350: Syntax error at line 44.
Expecting valid column specification, "," or ")", found "trunc".
DATE_LOADED trunc(SYSDATE)
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Aug 6, 2011
i have problem when use trunc function in form builder i have two cloumn first column inserted data is 15.55 and i want the secound cloumn the will be too 15.55
i used this code but nothing happened
select sum(trunc(item_name,2)
into column2
from table_name
always the result be 16 i want it 15.55 without any round to this value
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May 9, 2012
I have to create a table which should store data at Week level. The table have the following columns
Product id, Loc id, Business group id, FISCAL WEEK , Revenue,
Fiscal week column will have data as '2011-W01', '2011-W47' etc.
What should be the data type for fiscal week column. Based on this table i have to create a calculated column which should fetch trailing 12 weeks average for each row.
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Mar 3, 2011
I am working with Oracle 8i and I have a problem while applying the below query:
select to_char(ENTRYDATE,'MM-DD-YYYY HH24:MI:SS') from TBL_BANDWIDTH_READS
where ENTRYDATE > sysdate-1
and rownum <10
03-03-2011 00:00:00
03-03-2011 00:00:00
03-03-2011 00:00:00
03-03-2011 00:00:00
[code].....
The time appears as 00:00:00. I said it's something weird because if I take the where condition off, then something like this appears:
select to_char(ENTRYDATE,'MM-DD-YYYY HH24:MI:SS') from TBL_BANDWIDTH_READS
12-22-2006 13:13:27
12-22-2006 13:13:27
12-22-2006 13:13:27
12-22-2006 13:13:27
12-22-2006 13:13:27
12-22-2006 13:13:27
12-22-2006 13:13:27
I am using the same query on a different table and there's no problem on it:
select to_char(ENTRYDATE,'MM-DD-YYYY HH24:MI:SS') from TBL_XX_PROGRAM
where ENTRYDATE > sysdate -10 and rownum <10
03-03-2011 17:06:48
03-03-2011 17:06:48
03-03-2011 16:59:08
03-03-2011 16:59:08
03-03-2011 12:04:21
I checked the DDL of both tables and the only difference is that the TBL_XX_PROGRAM have the ENTRYDATE field defined as not null and the ENTRYDATE on the TBL_BANDWIDTH_READS does not have the same constraint, could it affect?
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Sep 5, 2012
I am trying to run select query on xml using xmltable. One of the tag returns date and I want to take it in date format in xmltable column.
select t.* from XMLTYPETEST xt ,
XMLTable ('/TestData/trade' passing xt.data
columns
test varchar2(100) path 'GenTest/Id',
testdate date path 'DateTest/Date')t;
But its throwing error as -
SQL Error: ORA-29958: fatal error occurred in the execution of ODCIINDEXCREATE routine
ORA-01830: date format picture ends before converting entire input string
29958. 00000 - "fatal error occurred in the execution of ODCIINDEXCREATE routine"
*Cause: Failed to successfully execute the ODCIIndexCreate routine.
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Mar 16, 2013
I have extracted in the following XML document some Mpeg7 visual descriptors from an image and I saved it in an XMLType column. I would like to use XMLQuery to extract the data from the Value node. how write such a query. I could not get the proper Xpath to any node.
<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
<Mpeg7 xmlns="http://www.mpeg7.org/2001/MPEG-7_Schema" xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance">
<DescriptionUnit xsi:type="DescriptorCollectionType">
[code]...
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Aug 31, 2010
I have a task to update one of the rows in a table (having only 2 columns, number and long) which is long data type. We are on Oracle 10g. Not sure how to use update for a long data type column.
I have tried using dbms_metadata_util.long2varchar, but still not getting what I want.
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Jun 23, 2011
Is it possible to replace datatype of column of one table with another table's column datatype using %type like below
SQL>create table test1 (v1 varchar2(10));
SQL>create table test2 (v1 test1.v1%type);
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Apr 29, 2010
I have oracle 10g database running on Sun Solaris. My database character set is AL32UTF8. Our user wants to store a double byte character and an image, I want to know what the column type should be using for these.
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Feb 4, 2012
Im having mail content column of type long Raw in a table.i just want concat or append a value in that column when i tried it shows error "illegal use of long type".how to append value to it. value will be string type
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Jul 28, 2010
I have a table with VARCAHAR2 data type column, I am unable to update that column with the following data.
UPDATE we set sname='(([Emp].Job.Catageory
IN 'SALES,COMPUTER,SCIENCE,TELESERVICE')
AND ([Employee].IDtype IN 'ABC'))'
I am getting the error "ORA-00933: SQL command not properly ended"
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Dec 6, 2012
I have a table and data as below.I need to select all the records if value have both 'M' and 'D'.If there is only 'M' or 'D' then select should not pull any records.
WITH data as (
Select '1' id, 'M' value from dual union all
Select '1' id, 'M' value from dual union all
Select '1' id, 'D' value from dual union all
Select '1' id, 'D' value from dual )
select value from data group by value
I tried below query but it is not working.
WITH data as (
Select '1' id, 'M' value from dual union all
Select '1' id, 'M' value from dual union all
Select '1' id, 'D' value from dual union all
Select '1' id, 'D' value from dual )
select * from data group by value having sum(count(distinct(value))) > 1
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Jul 6, 2010
user@tank> create table filetable(id number(6), file_content BLOB);
0 rows affected (0.02 seconds)
vlanke@tank_db> desc filetable;
ID NULL NUMBER(6,0)
FILE_CONTENT NULL
I am new to Database field.
- I created a table with 2 columns id (datatype as number) and file_content datatype as BLOB.
- My question is under desc filetable; query why does it not show me a data type as BLOB.
- create table query does not return any error to me. How do I verify that FILE_CONTENT column has datatype as blob.
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May 18, 2011
i have one table emp in this table i have the column eno,ename,hiredate and i have data also in this table.
my eno colum data type is number so now i have to change this colum data type from number to varchar2.
if yes how can when i am trying to change this colum data type i got this error
Failed to commit: ORA-01439: column to be modified must be empty to change datatype.
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Jan 24, 2013
I have a table Table_xml_tmp which has a column MESSAGECONTENTS as XMLType data which contains data as follows
"<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<xclimSchemaMain xmlns="http://clones.telcordia.com">
<response>
<clHeader>
<msgName>queryPlace</msgName>
[code]......
I need to get all rows where node <operationStatus> value as SUCCESS. I am running following query but it is returning null value insted of data of columns
SELECT a.MESSAGECONTENTS.extract('/clHeader/msgName/object/msgType/sender/senderInstance/operationStatus/text()').getStringVal()
FROM Table_xml_tmp a
WHERE a.MESSAGECONTENTS.extract('/clHeader/msgName/object/msgType/sender/senderInstance/operationStatus/text()').getStringVal()= 'SUCCESS'
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Nov 12, 2012
need to dynamically assign value of each column of a row type variable:The example is like that:
Table "Student_list" is as follows:
---------
COL1 VARCHAR2(50),
COL2 VARCHAR2(50),
COL3 VARCHAR2(50)
[code]....
Is there any work around where i can dynamically built my variable or table.column name and assign a value to it?
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Jun 4, 2012
I have a table with modifieddate column with 'DATE' data type.I am facing date format exception and tried with to_char, to_date but its throwing invalid number exception. how to format date accordingly.
SELECT * FROM EMP WHERE modifieddate > '31-Dec-2011 18:30';
ORA-01722: invalid number
01722. 00000 - "invalid number"
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Apr 3, 2013
I´m newbie as Apex developer using Apex 4.0 with OracleXE 11.2, and now my problem is:
I have a tabular form where one of the columns, when calling the form, is a Display Item, so that you cannot change existing values.
I want, when adding a new row, that column become a Select List (named LOV) based on a query that exclude existing values in other rows already inserted.
Can I change that Display Item to Select List (named LOV) programmatically at runtime? If not, what other options do I have?
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Jan 10, 2013
I have an index on column of table which of data type varchar2. While selecting data from that table I am using following scenarios in where on the indexed column
like '%abc%'
like 'abc%'
like '&abc'
Will be the corresponding index will be for those cases?
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Jan 29, 2013
bookshelf_test table structure
title varchar2(100) y
publisher varchar2(20) y
categoryname varchar2(20) y
rating varchar2(2) y
my query is,
select ROWNUM AS "Rank",title,publisher from (select rating,title,publisher from bookshelf_test order by rating desc ) where ROWNUM <=3
returns result ,
1 1 MY LEDGER KOCH PRESS
2 2 TO KILL A MOCKINGBIRD HARPERCOLLINS
3 3 THE MISMEASURE OF MAN W.W. NORTON
But inner query (select rating,title,publisher from bookshelf_test order by rating desc ) returns,
1 5 WONDERFUL LIFE W.W.NORTON
2 5 THE MISMEASURE OF MAN W.W. NORTON
3 5 TO KILL A MOCKINGBIRD HARPERCOLLINS
4 5 MY LEDGER KOCH PRESS
5 4 TRUMAN SIMON SCHUSTER
6 4 GOSPEL PICADOR
7 4 HARRY POTTER AND THE GOBLET OF FIRE SCHOLASTIC
8 4 INNUMERACY VINTAGE BOOKS
9 4 JOHN ADAMS SIMON SCHUSTER
10 4 JOURNALS OF LEWIS AND CLARK MARINER
11 4 LETTERS AND PAPERS FROM PRISON SCRIBNER
12 4 PREACHING TO HEAD AND HEART ABINGDON PRESS
13 4 THE SHIPPING NEWS SIMON SCHUSTER
14 4 THE GOOD BOOK BARD
15 4 THE DISCOVERERS RANDOM HOUSE
16 3 THE COST OF DISCIPLESHIP TOUCHSTONE
17 3 SHOELESS JOE MARINER
18 3 KIERKEGAARD ANTHOLOGY PRINCETON UNIV PR
19 3 EMMA WHO SAVED MY LIFE ST MARTIN'S PRESS
20 3 EITHER/OR PENGUIN
21 3 CHARLOTTE'S WEB HARPERTROPHY
22 3 BOX SOCIALS MARINER
23 3 ANNE OF GREEN GABLES GRAMMERCY
24 3 WEST WITH THE NIGHT NORTH POINT PRESS
25 3 UNDER THE EYE OF THE CLOCK ARCADE PUB
26 3 TRUMPET OF THE SWAN HARPERCOLLINS
27 2 COMPLETE POEMS OF JOHN KEATS VIKING
28 1 POLAR EXPRESS HOUGHTON MIFFLIN
29 1 GOOD DOG, CARL LITTLE SIMON
30 1 MIDNIGHT MAGIC SCHOLASTIC
31 1 RUNAWAY BUNNY HARPERFESTIVAL
why final queries top 3 rows r different than inner query ?
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Dec 21, 2012
I have a table with structure as:
CREATE TABLE XML_TABLE_1
(
ID NUMBER NOT NULL,
SOURCE VARCHAR2(255 CHAR) NOT NULL,
XML_TEXT SYS.XMLTYPE,
CREATION_DATE TIMESTAMP(6) NOT NULL
[code].....
- So HOW do I find the total size occupied by this table. Does BINARY storage work as LOB storage. i.e. I need to consider USER_LOBS as well for this. OR foll. will work
select segment_name as tablename, sum(bytes/ (1024 * 1024 * 1024 )) as tablesize_in_GB
From dba_segments
where segment_name = 'XML_TABLE_1'
and OWNER = 'SCHEMANAME'
group by segment_name ;
- Also if I am copying it to another table of same structure as:
Insert /*+ append */ into XML_TABLE_2 Select * from XML_TABLE_1.
Then how much space in ROllbackSegment do I need. Is it equal to the size of the table XML_TABLE_1?
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Jun 29, 2012
Is there a seeded function by which I can check all the rows which stored dates in varchar column.
I have a table say test (test_data varchar2(100));
Now I will insert all types of records into the table varchar,number dates and then i will write q query to etch all those records only which has dates only
INSERT INTO test(1);
INSERT INTO test('ABC');
INSERT INTO test(SYSDATE);
INSERT INTO test(TO_CHAR(SYSDATE,'DD-MON-YYYY'));
INSERT INTO test(TO_CHAR(SYSDATE,'DD-MON-YYYY HH24:MI:SS'));
INSERT INTO test('15/01/2012');
...
commit;
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