Oracle 8i datatypes in bytes

Hi,
If you're able to help, I'm interested in finding out the size (in BYTES) of the following Oracle 8i datatypes:
BLOB
DATE
NUMBER
NUMBER(10,0)
FLOAT
LONG
VARCHAR2
Example, for CHAR(size) the number of bytes equal to size.
Thanking you in advance for your time.
Regards
SoR
null

Use the SQL function VSIZE.
SELECT ename, VSIZE (ename) "BYTES"
FROM emp
WHERE deptno = 10;
ENAME BYTES
CLARK 5
KING 4
MILLER 6

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Currently we have an application that need to create timestamps with precision up to thousands of a second.
Do you know of any other customer that have similar requirements and how they solve this problem ?
We try changing the SQL DDL to change datatype from DATE to TIMESTAMP(3) which can support a timestamp of 1/1000 seconds precision.
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Exception Description: The object [oracle.sql.TIMESTAMP@321b5e39], of class [class oracle.sql.TIMESTAMP], could not be converted to [class java.util.Date].
at oracle.toplink.exceptions.ConversionException.couldNotBeConverted(ConversionException.java:35)
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at oracle.toplink.internal.helper.ConversionManager.convertObject(ConversionManager.java:97)
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Than we try to change our java code and modify the java instance variable type from java.util.Date to java.sql.Timestamp
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Exception [TOPLINK-3001] (OracleAS TopLink - 10g (9.0.4) (Build 031126)): oracle.toplink.exceptions.ConversionException
Exception Description: The object [oracle.sql.TIMESTAMP@731de027], of class [class oracle.sql.TIMESTAMP], could not be converted to [class java.sql.Timestamp].
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at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(XMLDocumentFragmentScannerImpl.java:1564)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:335)
We cannot seems to find in toplink mapping workbench how to specify timestamp
========================================================================================================
The TIMESTAMP Datatype
The new TIMESTAMP datatype is almost identical to DATE and differs in only one way:
TIMESTAMPs can represent fractional seconds.
The granularity of a TIMESTAMP value can be as little as a billionth of a second, whereas
DATE variables can only resolve time to the second.
When you declare a TIMESTAMP variable, you can optionally specify the precision that you wish to use for fractional seconds. The default precision is to the millisecond (six decimal digits); the maximum precision is to the billionth of a second (nine decimal digits).
===========================================================================================================
-----Original Message-----
From: Cheung, Ka-Kit
Sent: Friday, March 12, 2004 6:20 PM
To: Burr, Tim; Julian, Robert; Matthiesen, Sean
Cc: Tsounis, George; Del Rosso, Peter; Cham, Mei
Subject: Problem identified : AddressDetail duplicate key problem
If we look at the exact of the insert statement.
We see that the last address detail insert have key of
Address ID = '5a052407-dac6-42ad-bbbf-29edc94488c1', and
TransactionStartDate = {ts '2004-03-12 17:13:27.792'},
While in the database, we look like we have an entry of
Address ID = '5a052407-dac6-42ad-bbbf-29edc94488c1', and
TransactionStartDate = {ts '2004-03-12 17:13:27.229'},
If my memory served me right, while
{ts '2004-03-12 17:13:27.792'}, is different than {ts '2004-03-12 17:13:27.229'},
because are Java timestamps that have precison up to MicroSeconds, therefore 229 is different than 792.
However, when this timestamp is saved to Oracle, I believe (have to check with Mei) that oracle only takes
Up to '2004-03-12 17:13:27 and discard the 229 or 792 because that is the maximum precision of timestamp for oracle.
So we have the second insert have the same '2004-03-12 17:13:27 after stripping off the 792 and we have a same record with the same same '2004-03-12 17:13:27 in the database and
Therefore causing duplicate key exception.
That is why this is happen only once in a while when 2 rapid fire inserts happen in less than 1 second of each other.
The solution actually is in the ESS code itselfs.
The current ESS code will send addDependentToClient multiple times, one for each dependent added
On the screen.
The right way is to add all the dependent on the screen all at once.
To have course grain method like addDependentsToClient, and have a collection or array of dependents as input parameter.
This way we are not causing the participant to create history of themselves multiple times within a very short period of time. It save disk space, conform to a single UOW per submit and that is what I proposed
To solve this problem from the root cause is by enhancing the method to save multiple dependents in one shot rather than a loop of multiple calls.
KK
and
INSERT INTO PTTCBSI.ADDRESS_DETAIL
(LINE_3_AD, ADR_TRAN_UNTIL_DT, MODIFY_DT, CITY_NM, POSTAL_CD, VER_ID, POSTAL_EXT_CD, LINE_2_AD, ADR_TRAN_START_DT, CREATE_DT, AUTHOR_ID, ADDRESS_ID, LINE_1_AD, COUNTY_NM, LINE_4_AD, COUNTRY_ID, STATE_ID)
VALUES ('Block 5, Apt. 6', {ts '9999-12-31 00:00:00.0'},
{ts '2004-03-12 17:13:26.385'},
'Oakwood', '61043', 1, '1234', 'Mailstop 820',
{ts '2004-03-12 17:13:26.385'},
{ts '2004-03-12 16:50:12.0'}, 'dataLoad',
'5a052407-dac6-42ad-bbbf-29edc94488c1',
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UPDATE PTTCBSI.ADDRESS_DETAIL
SET ADR_TRAN_UNTIL_DT = {ts '2004-03-12 17:13:26.385'}, VER_ID = 2 WHERE
(((ADDRESS_ID = '5a052407-dac6-42ad-bbbf-29edc94488c1') AND
(ADR_TRAN_START_DT = {ts '2004-03-12 16:52:29.0'})) AND (VER_ID = 1))
UPDATE PTTCBSI.ADDRESS_DETAIL SET
ADR_TRAN_UNTIL_DT = {ts '2004-03-12 17:13:27.229'}, VER_ID = 2
WHERE (((ADDRESS_ID = '5a052407-dac6-42ad-bbbf-29edc94488c1') AND (ADR_TRAN_START_DT = {ts '2004-03-12 17:13:26.0'})) AND (VER_ID = 1))
UnitOfWork(102762535)--Connection(2102560837)--
INSERT INTO PTTCBSI.ADDRESS_DETAIL
(LINE_3_AD, ADR_TRAN_UNTIL_DT, MODIFY_DT, CITY_NM, POSTAL_CD, VER_ID, POSTAL_EXT_CD, LINE_2_AD, ADR_TRAN_START_DT, CREATE_DT, AUTHOR_ID, ADDRESS_ID, LINE_1_AD, COUNTY_NM, LINE_4_AD, COUNTRY_ID, STATE_ID) VALUES
('Block 5, Apt. 6', {ts '9999-12-31 00:00:00.0'}, {ts '2004-03-12 17:13:27.229'}, 'Oakwood', '61043', 1, '1234', 'Mailstop 820',
{ts '2004-03-12 17:13:27.229'},
{ts '2004-03-12 16:50:12.0'}, 'dataLoad',
'5a052407-dac6-42ad-bbbf-29edc94488c1',
'IBM Corp.', NULL, '140 Main Street', 'US', 'NJ')
INSERT INTO PTTCBSI.ADDRESS_DETAIL
(LINE_3_AD,
ADR_TRAN_UNTIL_DT,
MODIFY_DT,
CITY_NM, POSTAL_CD, VER_ID, POSTAL_EXT_CD, LINE_2_AD,
ADR_TRAN_START_DT,
CREATE_DT,
AUTHOR_ID,
ADDRESS_ID,
LINE_1_AD, COUNTY_NM, LINE_4_AD, COUNTRY_ID, STATE_ID) VALUES
('Block 5, Apt. 6', {ts '9999-12-31 00:00:00.0'},
{ts '2004-03-12 17:13:27.792'},
'Oakwood', '61043', 1, '1234',
'Mailstop 820',
{ts '2004-03-12 17:13:27.792'},
{ts '2004-03-12 16:50:12.0'},
'dataLoad',
'5a052407-dac6-42ad-bbbf-29edc94488c1',
'IBM Corp.', NULL, '140 Main Street', 'US', 'NJ')
ClientSession(790235177)--Connection(2102560837)--rollback transaction
ORA-00001: unique constraint (PTTCBSI.PK_ADDRESS_DETAIL) violated

KK,
We are back-porting the support for oracle.sql.TIMESTAMP to 9.0.4 in an upcoming patch-set. It is possible to enhance TopLink using a customer conversion manager or database platform to add this support if required in the short term.
Doug

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char *errMsg
char err_msg[128];
sword retcode;
int tester;
size_t buf_len, msg_len;
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sqlglm(err_msg, &buf_len, &msg_len);
strcpy(errMsg,err_msg);
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int gid,
int g_type,
char *errMsg
char err_msg[128];
sword retcode;
size_t buf_len, msg_len;
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SDO_GEOMETRY_ind geom_ind = (SDO_GEOMETRY_ind )0;
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exec sql at db_name select geometry into :geom:geom_ind from test81 where gid=:gid;
if (SQLCODE !=0)
exec sql whenever sqlerror continue;
buf_len = sizeof (err_msg);
sqlglm(err_msg, &buf_len, &msg_len);
strcpy(errMsg,err_msg);
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sprintf(errMsg,"Convert failed");
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struct SDO_GEOMETRY
OCINumber sdo_gtype;
OCINumber sdo_srid;
struct SDO_POINT_TYPE sdo_point;
SDO_ELEM_INFO_ARRAY * sdo_elem_info;
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struct SDO_GEOMETRY_ind
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OCIInd sdo_gtype;
OCIInd sdo_srid;
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OCIInd sdo_ordinates;
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Hi,
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Keep Oracle DATE datatype but insert via PreparedStatement with time

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PL/SQL procedure successfully completed.
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20110102345678       324560000 AAA ZZZ
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PL/SQL procedure successfully completed.
SQL> /
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PL/SQL procedure successfully completed.
SQL> /
             ID       PINNUMBER FIR LAS
20110102345680       324561111 CCC ZZZOr, as numeric variable, as Frank suggested, it would be like:
SQL> var numvar number;
SQL> exec :numvar := 0;
PL/SQL procedure successfully completed.
SQL> WITH sample_data AS (
2     SELECT 20110102345678 id, 324560000 pinnumber, 'AAA' firstname, 'ZZZ' lastname
3     FROM dual UNION ALL
4     SELECT 20110102345679, 324560111, 'BBB', 'ZZZ' FROM dual UNION ALL
5     SELECT 20110102345680, 324561111, 'CCC', 'ZZZ' FROM dual UNION ALL
6     SELECT 20110102345681, 324561234, 'DDD', 'ZZZ' FROM dual)
7 SELECT * FROM sample_data
8 WHERE MOD(pinnumber, 10000) = :numvar;
             ID       PINNUMBER FIR LAS
20110102345680       324561111 CCC ZZZ
SQL> exec :numvar := 0111
PL/SQL procedure successfully completed.
SQL> /
             ID       PINNUMBER FIR LAS
20110102345679       324560111 BBB ZZZ
SQL> exec :numvar := 1111
PL/SQL procedure successfully completed.
SQL> /
             ID       PINNUMBER FIR LAS
20110102345680       324561111 CCC ZZZJohn

Implementation of double byte character in oracle 10.2.0.5 database

Hi experts,
There is an oracle 10.2.0.5 standard edition database running on windows 2003 platform. The application team needs to add a column of the datatype double byte (chinese characters) to an existing table. The database character set is set to WE8ISO8859P1 and the national characterset is AL16UTF16. After going through the Oracle Documentation our DBA team found out that its possible to insert chinese characters into the table with the current character set.
The client side has the following details:
APIs used to write data--SQL Developer
APIs used to read data--SQL Developer
Client OS--Windows 2003
The value of NLS_LANG environment variable in client environment is American and the database character set is WE8ISO8859P1 and National Character set is AL16UTF16.
We have got a problem from the development team saying that they are not able to insert chinese characters into the table of nchar or nvchar column type. The chinese characters that are being inserted into the table are getting interpreted as *?*...
What could be the workaround for this ??
Thanks in advance...

For SQL Developer, see my advices in Re: Oracle 10g - Chinese Charecter issue and Re: insert unicode data into nvarchar2 column in a non-unicode DB
-- Sergiusz

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Peter,

hi,
Instead of 'interval day to second' in method declaration use internal datatype 'DSINTERVAL_UNCONSTRAINED'.
There are more unconstrained types in oracle.
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