How to get current time in TimesTen
I need to get the current timestamp of TimesTen DB located node, how can get it?
In PSQL, I can use built-in function now(), In Oracle, I can use LOCALTIMESTAMP, thanks. a lot.
Hi Vikas,
Firstly, the syntax you give
select to_char(sysdate,'dd-mm-yyyy hh24:mi:ss.FF') as ts from dual;
does not work in Oracle DB - it gives an eror due to the '.FF' in the format string.
This syntax does work just fine in TimesTen (which is a little more tolerant).
However, this is not a very useful thing since the resolution of SYSDATE is 1 second and to accurately measure data fetch times you need accurate microsecond resolution. Also, you would need to take an average over many millions of measurements to get any degree of accuracy.
Realistically, this will be a very difficult thing to measure with any accuracy. Might I understand what you are exactly looking to achieve here? For the same amount of data, separateing 'fetch' from SQL execution, TimesTen in direct mode will return data much, much faster than an Oracle client/server connection wven when the client is on the same machine as oracle. For Tt client/server mode the data transfer performance will be very similar to that for Oracle.
Chris
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