Implicit conversion issue

Dear Sir,
Does latest Oracle9i JDBC driver not support implicitly converting string to date?
I try to execute "INSERT INTO TABLE DATETYPECOLUMN VALUES '2007-07-24 17:40:00' ".
It works well using driver version 9.2.0.1, 9.2.0.3, 9.2.0.4, 9.2.0.5, but can't work using version 9.2.0.7, 9.2.0.8.
So, why latest version doesn't cover legacy version?
Thanks for your great help!
Best regards,
Brian

Dear Avi,
Thanks for your suggestion!
As you said, I try not to modify the code because it involves many systems.
So, the temporary solution is using legacy version JDBC driver but I'm not sure does legacy driver have any problem or not.
I had tried to use JDBC driver version 10.2.0.2 and it produced the same result : ORA-01861: literal does not match format string.
(My java version is jdk142_11.)
I searched the readme doc. on Oracle JDBC driver download page, I can't find if latest verison driver doesn't support implicit conversion.
Does the drivers after 9.2.0.7 really not support it?
Thanks for your great help again!
Best regards,
Brian

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Implicit Conversion from data type sql_variant to datetime is not allowed.

Getting a odd error. This code was working perfectly before a SQLServer upgrade.
The linked database is working, I'm able to pull up data from it in separate queries just fine.
I'm getting the following error.
Implicit conversion from data type sql_variant to datetime is not allowed. Use the CONVERT function to run this query.
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can anyone spot the issue? I've tried sever variations of the same code, but still get the same thing.
If I put this section in a query by it self it works just fine.
( DATEDIFF(ss,
CONVERT(VARCHAR(10),( SELECT TOP ( 1 )
TimeDate
FROM [nav].AcsLog.dbo.EvnLog AS X3
WHERE UDF2 = E.No_
AND CONVERT(VARCHAR(10), X3.TimeDate, 101) = CONVERT(VARCHAR(10), @sdate, 101)
ORDER BY TimeDate ASC
),101),
CONVERT(VARCHAR(10),( SELECT TOP ( 1 )
TimeDate
FROM [nav].AcsLog.dbo.EvnLog AS X4
WHERE UDF2 = E.No_
AND CONVERT(VARCHAR(10), X4.TimeDate, 101) = CONVERT(VARCHAR(10), @sdate, 101)
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>ANDCONVERT(VARCHAR(10),X3.TimeDate,101)=CONVERT(VARCHAR(10),@sdate,101)
It is not a good idea to use string dates for predicates in WHERE clauses.
Use DATETIME or DATE in predicates.
If you are not interested in the time part of DATETIME, use DATE datatype.
Example:
SELECT CONVERT(DATE, getdate());
-- 2014-08-25
Datetime conversions:
http://www.sqlusa.com/bestpractices/datetimeconversion/
Between dates:
http://www.sqlusa.com/bestpractices2008/between-dates/
Kalman Toth Database & OLAP Architect
SQL Server 2014 Design & Programming
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

Implicit conversion of "TEXT" to "VARCHAR"

Running jdk1.6.0_12, Linux RHE, Sybase 12.5 and connection with jconn3.jar
Have a table with a column of type varchar(50)
Was able to isolate the problem to this column, as the SQLException was thrown from the line "stmt.setString("@<colname>", <value>);"
In doing ~14,000 individual inserts in 30 min I had two Exceptions thrown (Implicit conversion of "TEXT" to "VARCHAR" is not allowed), both at the same place and both repeatable. I put a print statement in the catch block and found that both were inserting the same 6 character string.
Ran all the docs several times more and got the same number of failures on the same files.
Querying the database I found that I had almost 5,000 other insert of the same string which were sucessful.
Not able to identify what was different about the two failures, no unprintable characters, etc.
Is this a JDBC issue or Sybase?
What are the reasons that would cause this exception to be thrown when inserting 6 characters into a hole for 50?
other ideas?
Edited by: jjones3566 on Feb 17, 2009 10:50 AM

jjones3566 wrote:
Running jdk1.6.0_12, Linux RHE, Sybase 12.5 and connection with jconn3.jar
Have a table with a column of type varchar(50)
Was able to isolate the problem to this column, as the SQLException was thrown from the line "stmt.setString("@<colname>", <value>);"
In doing ~14,000 individual inserts in 30 min I had two Exceptions thrown (Implicit conversion of "TEXT" to "VARCHAR" is not allowed), both at the same place and both repeatable. I put a print statement in the catch block and found that both were inserting the same 6 character string.
Ran all the docs several times more and got the same number of failures on the same files.
Querying the database I found that I had almost 5,000 other insert of the same string which were sucessful.That could an invalid assumption. The fact that they displayed the same does not make them the same.
You would need to print the integer value of each character to insure they are the same.
You should do that starting with the source and NOT what is in the database.
If different then that is the source of the problem.
If the same then it is probably just a bug in the driver/database which you are stuck with. Various solutions would be to try a conversion (format the SQL to take a text and convert to varchar) or trying playing with the commit level (commit 50 versus 5000 or whatever.)

Data type conversion issues between Oracle and SQL Server

Hi there, I am using Heterogeneous Services to insert into a SQL Server database. I am running into an issue between data types regarding Oracle's VARCHAR2 and trying to insert that into a SQL Server MONEY data type. I tried using the TO_NUMBER() function to convert my VARCHAR2 to a number, but that didn't seem to help.
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Message was edited by:
ivalum21

BCP.exe Datatime conversion issue

Hi,
I'm dumping data into MS-SQL server Database but strange that datatime column values are with milliseconds say 2014-03-18 23:57:41.626 in this case bcp.exe
is rounding the millisecond value. In my table Datetime is a primary key column so. this is throwing Primary Key violation since BCP is rounding the last digit of the millisecond value to the nearer one ( 0, 3, 7).
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Regards
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That's the maximum precision up to which date time stores values. So if you want greater precision cast it to datetime2 in bcp query
is like below
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Please Mark This As Answer if it helps to solve the issue Visakh ---------------------------- http://visakhm.blogspot.com/ https://www.facebook.com/VmBlogs

Should we replace all implicit conversion by explicit conversion

Hi all, it's my first post in this forum, correct me if I do something incorrect.
I just want to discuss this question from the performance point of view, so don't worry about the design or other stuff.
I have read through many threads and articles, it seems that no one has explained my concern.
If we replace the implicit conversion by explicit conversion, does it help for the performance?
For example, I created the following table
CREATE TABLE student (s_id tinyint, name varchar(20));
INSERT INTO student VALUES (1,'name1'),(2,'name2'),(3,'name3')
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Another related question is when I insert the records, is it better if I Cast the number to tinyint as follows?
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Thanks guys

Hi,
Implicit conversions leads to scans and can cause performance issue. Can you please refer to below technet article
http://social.technet.microsoft.com/wiki/contents/articles/24563.sql-server-be-aware-of-the-correct-data-type-for-predicates-in-queries.aspx
Please mark this reply as answer if it solved your issue or vote as helpful if it helped so that other forum members can benefit from it
My Technet Wiki Article
MVP

Conversion issue in encoding in PI

Hi,
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Dinesh

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Why index is not used if oracle have to do implicit conversion?

my db version: 10gR2
I created bitmap index on each of the column used in below sql.
the datatype of all three columns are VARCHAR2,
while i am using NUMBER in the query, which means oracle needs to do the implicit conversion before running the sql.
the problem is that, when I use NUMBER as below, execution plan will not use bitmap indexes at all.
but when I use STRING instead, it will make use of those bitmap indexes.
select FI_YTD,1,2,FI_KPI_ID
from DM_F_FI_ALL_KPI
where
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 and FI_PERIOD=201012
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Edited by: PhoenixBai on Jan 30, 2011 10:52 AM
Edited by: PhoenixBai on Jan 31, 2011 9:21 AM --added database version as 10gR2

sybrand_b wrote:
Implicit conversion in Oracle is always done like this
empno='10'
is rewritten as
to_char(empno)='10'
Now you have <function>(<indexed columnn>) = <hardcoded literal>
Oracle never puts a conversion function at the right hand side of the expresssion. NEVER.
SQL> create table emp as select * from scott.emp;
Table created.
SQL> alter table emp add constraint emp_pk primary key (empno);
Table altered.
SQL> @desc emp
Name Null? Type
EMPNO NOT NULL NUMBER(4)
ENAME VARCHAR2(10)
JOB VARCHAR2(9)
MGR NUMBER(4)
HIREDATE DATE
SAL NUMBER(7,2)
COMM NUMBER(7,2)
DEPTNO NUMBER(2)
SQL> select * from emp where empno = '10'
2
SQL> @xplan
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Compatibility is set to 11.2.0.0.0
Plan hash value: 4024650034
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 1 | 87 | 1 (0)| 00:00:01 |
| 1 | TABLE ACCESS BY INDEX ROWID| EMP | 1 | 87 | 1 (0)| 00:00:01 |
|* 2 | INDEX UNIQUE SCAN | EMP_PK | 1 | | 0 (0)| 00:00:01 |
Predicate Information (identified by operation id):
 2 - access("EMPNO"=10)Edited by: William Robertson on Jan 30, 2011 12:56 PM - added DESCRIBE

[svn] 2236: Allow implicit conversion of Vector. * to Vector. T in strict mode.

Revision: 2236 Author: [email protected] Date: 2008-06-25 11:48:59 -0700 (Wed, 25 Jun 2008) Log Message: ----------- Allow implicit conversion of Vector.<*> to Vector.<T> in strict mode. Modified Paths: -------------- flex/sdk/trunk/modules/asc/src/java/macromedia/asc/util/Context.java

For some reason it just started to work now. Have no idea what didn't work before.

Implicit conversion

doesnot oracle implicitly convert varchar(2) to date in round and trunc functions?

Hi,
f7218ad2-7d9f-4e71-ba26-0d6e4b38f87e wrote:
doesnot oracle implicitly convert varchar(2) to date in round and trunc functions?
ROUND and TRUNC do not take VARCHAR2s fior the 1st argument. They take either NUMBERs or DATEs. If you try to call them with any other data type, you are asking for trouble. Sometimes you get what you ask for. There is no reason to call either with the wrong type of argument.
If you do call ROUND or TRUNC with a VARCHAR2 1st argument, even though you know it's a terrible idea, Oracle will try to convert it. Whether it tries to convert it to a NUMBER or a DATE may depend on the string and/or your NLS settings, though it seems to always try to conver to a NUMBER.
Implicit conversions are never necessary. Explicit conversions are always simple. Always use the correct datatype. If you must convert from one datatype to anopther, use an explicit conversion.

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Hi, I am trying to build one of the sample plugin WriteFishPrice from the SDK on mac System
I am using Xcode 5.0.2 as per the documentation, but I am encountering the below errors during compilation.
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const difference_type nCodeValues = std::distance(b, e);
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And similar errors are coming in WideString.h.
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Hi kapoor_aman27,
this is just a warning, because the size of the string is stored as an int32 and some function has Argument with type int32. You can change the compiler setting "Treat Warnings as Errors" to "No". Then it is only a warning and you can ignore it as long as you use string with less than 4GB.
Markus

Disallowed implicit conversion from data type datetime to data type timestamp

Received error: [Macromedia][SQLServer JDBC
Driver][SQLServer]Disallowed implicit conversion from data type
datetime to data type timestamp, table 'myTbl', column 'duration'.
Use the CONVERT function to run this query.
I have a field named duration hh:mm:ss.lll that I am trying
to insert into MS SQL. DB has field defined as [duration]
[timestamp] NOT NULL,
My insert has this: INSERT INTO myTbl( duration) VALUES(
<cfqueryparam value="2006-05-26 11:12:13"
cfsqltype="CF_SQL_TIMESTAMP"/> )
Why does this not work? rrrrrrrrrrrrrr! BTW: also tried with
seconds as 13.111 which did not work. Does the db duration need to
be date? I just want to store a duration for the time of a movie...
10 Q

quote:
Originally posted by:
quiet1
Received error: [Macromedia][SQLServer JDBC
Driver][SQLServer]Disallowed implicit conversion from data type
datetime to data type timestamp, table 'myTbl', column 'duration'.
Use the CONVERT function to run this query.
I have a field named duration hh:mm:ss.lll that I am trying
to insert into MS SQL. DB has field defined as [duration]
[timestamp] NOT NULL,
My insert has this: INSERT INTO myTbl( duration) VALUES(
<cfqueryparam value="2006-05-26 11:12:13"
cfsqltype="CF_SQL_TIMESTAMP"/> )
Why does this not work? rrrrrrrrrrrrrr! BTW: also tried with
seconds as 13.111 which did not work. Does the db duration need to
be date? I just want to store a duration for the time of a movie...
10 Q
Duration as a timestamp? How odd, most people would store it
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is {ts 'yyyy-mm-dd hh:mm:ss'}. The seconds might not be required.
In any event, use createodbcdatetime() for the value you want
to put into your table.

When implicit conversion takes place

hi all,
I have two queries say
sql>SELECT * FROM EMP WHERE HIREDATE BETWEEN '20-FEB-81' AND '20-FEB-82';
EMPNO ENAME JOB MGR HIREDATE SAL COMM DEPTNO
7499 ALLEN SALESMAN 7698 20-FEB-81 1600 300 30
7521 WARD SALESMAN 7698 22-FEB-81 1250 500 30
7566 JONES MANAGER 7839 02-APR-81 2975 20
7654 MARTIN SALESMAN 7698 28-SEP-81 1250 1400 30
7698 BLAKE MANAGER 7839 01-MAY-81 2850 30
7782 10 deleted MANAGER 7839 09-JUN-81 2450 10
7839 10 deleted PRESIDENT 17-NOV-81 5000 10
7844 TURNER SALESMAN 7698 08-SEP-81 1500 0 30
7900 JAMES CLERK 7698 03-DEC-81 950 30
7902 FORD ANALYST 7566 03-DEC-81 3000 20
7934 10 deleted CLERK 7782 23-JAN-82 1300 10
AND
sql>select '17-SEP-2010'+1 from dual;
ERROR at line 1:
ORA-01722: invalid number
now in the first case i have passed a string and that got converted into a date
but in the second case i am trying to add one day to the entered date it is not getting converted in the second case.
when actually is implicit conversion done.
thanks and regards,
sri ram.

I'd like to recommand you NEVER to rely on IMPLICIT conversion. It depends on the NLS_DATE_FORMAT parameter. If you supply a VARCHAR that can be converted to a date, it will use this default format to try and convert the date. But this can result of weird result if you don't know what is the NLS_DATE_FORMAT ;-)
So, as an advice, always pass DATE to function that accept dates by converting them yourself (TO_DATE(a_date, 'the format you want')...
Cheers,

Implicit conversion issue

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