Timestamp vs date datatype

I am transferring data from table A to table B. there is a column in table A with datatype 'timestamp' that has the fraction seconds in the data. However I am using data type 'date' in table B where I am transferring the timestamp data to. I can query the fraction saconds using the hh:mm:ss.ff in table A but when I use it in table B it shows nothing and errors out.
i tried to use the CAST function to query the fraction seconds in table B but it shows zeroes.
question is - is the fraction second being transferred to table B? what can I do to make sure fractions are being transferred from A to B
any help will be appreciated

Hi,
question is - is the fraction second being transferred to table B? what can I do to make sure fractions are being transferred from A to BThat is the one of the difference between TIMESTAMP and DATE. TIMESTAMP holds the miliseconds also. To transfer fraction of second you need to convert B table's datatype to TIMESTAMP.
Cheers,
Avinash

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How to get a time part from Date datatype

Hi,
I would like to know how to extract the timestamp alone from DATE datatype? If my input is '27-SEP-2011 23:59:00' I need the output as 23:59:00. I am surprised to see that there are no in-built functions for this or may be I am wrong. Basically I need to remove the date part from DATE data type and get the time.Please assist.
-Thanks
Edited by: user9546145 on Sep 27, 2011 2:24 PM
Edited by: user9546145 on Sep 27, 2011 2:25 PM

Hi,
user9546145 wrote:
Hi,
I would like to know how to extract the timestamp alone from DATE datatype? Be careful! In Oracle, TIMESTAMP means a datatype, similar to but distinct from DATE. You'll avoid confusion if you don't use the word "timestamp" to mean anything else.
There is a built-in function, TO_CHAR:
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dt_col - TRUNC (dt_col)is a NUMBER (not less than 0, but less than 1) which is suitable for many tasks, such as finding the average time.
I hope this answers your question.
If not, post a little sample data (CREATE TABLE and INSERT statements, relevant columns only) for all tables, and also post the results you want from that data.
Explain, using specific examples, how you get those results from that data.
Always say which version of Oracle you're using.

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Thanks for the prompt reply Crystal,
The data is stored in an Oracle database using the DATE type. I'm querying many rows along with other columns and converting each of the values as necessary for each column with the 'Database Variant to Data' vi. Only conversion to Timestamp is no longer working as of version 8.2. I recognize that plain Variant to Data works but I have many (100's) of VIs to change if that is the only solution (not the end of the world). Most often the dates are originally generated in the database using PL/SQL procedures calling SYSDATE which look like: 5/1/2006 11:56:26 AM (in TOAD anyway) which I then need to read into LV as type Timestamp.
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type TEMP_REC
IS
record
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Hello,
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IS
record
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DATE datatype

Is it possible to store time upto Milliseconds while using Date datatype?
We are currently in the process of migrating from Informix to Oracle. Lot of timestamps columns in our existing database store date upto the last millisecond.
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null

The datatype is the datatype... which is to say, that natively it doesn't store data to that degree of accuracy. Possible solutions:
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Unable to insert date and time when using date datatype

Hi
I am hitting a bit of a problem when using the date datatype. When trying to save a row to the table where the field it throws an error ora 01830 and complains about converting the date format picture ends...etc. Now when I do the insert, I use the to_date function with the format of "dd-mon-yyyy hh24:mi:ss". Of course, when I remove the time element, everything is perfect.
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Thanks

user633278 wrote:
Hi
I am hitting a bit of a problem when using the date datatype. When trying to save a row to the table where the field it throws an error ora 01830 and complains about converting the date format picture ends...etc. Now when I do the insert, I use the to_date function with the format of "dd-mon-yyyy hh24:mi:ss". Of course, when I remove the time element, everything is perfect.
Checking sysdate, I noticed that the time element wasn't be displayed, and I used alter session set nls_date_format to set the date and time I want to save to the table, which worked!
Then based on advice in a previous thread to permanently fix the problem, I used alter system set nls_date_format ="dd-mon-yyyy hh24:mi:ss" scope=spfile; This showed that it was altered, and I can see the setting in the em. In sqlplus, I shutdown the database, and restarted with startup mount; alter database open; and then selecting sysdate, it still shows the date as dd-mon-yy, and still no time! Checking the em, and looking up the nls_date_format the setting is still shown as "dd-mon-yyyy hh24:mi:ss".
So, my question is this - what am I doing wrong? Why can't save date and time using date in Oracle 11g?????
ThanksYou most certainly can save the time. A DATE column, by definition stores date and time. What you describe is a presentation problem, and setting nls_date_format at the system as an init parm is the weakest of all settings as it is overridden by several other locations.
without seeing the exact sql that produced the error (not just your description of what you think you were doing) it is impossible to say for sure.
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TTFN
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Hi,
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Thanks in advance.
siva

Sorry & thanks sathish,
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2 and application_id=2007010028552;
DECISIONED_STAGE_ID DECISIONED_STAG
2006060113 SYSTEM
================================
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