How do you convert a string type like
t1.updte_timestamp
2018-06-02-08.18.45.562742
2018-05-26-09.18.16.594824
into a timestamp? SHOULD RESULT IN:
2018-06-02-08.18.45
2018-05-26-09.18.16
ETC
The values had been imported from excel and are in STRING-TYPE
I tried:
SELECT
to_timestamp(cast (t1.updte_timestamp as string), 'yyyy-mm-dd hh:mm:ss') as updted_timestamp FROM OLD;
but results in NULL for all values
thank you
you can substr your string and apply to_timestamp as follow
select to_timestamp(substr('2018-06-02-08.18.45.562742', 1, 19) , 'yyyy-MM-dd-HH.mm.ss');
Make sure you use MM for month and HH for hour in upper case
Related
I need to restrict a query with a
SELECT ... FROM ...
WHERE my_date=(RESULT FROM A SELECT)
... ;
in order to achieve that I am using as result of the select a timestamp (if I instead use a datetime I get nothing from my select probably because the format I am using trims the datetime at the second).
Sadly this is not working because these kindo of queries:
select DISTINCT TO_DATE(TO_TIMESTAMP(TO_DATE('25-10-2017 00:00', 'dd-MM-yyyy HH24:MI'))) from DUAL;
return an
ORA-01830: date format picture ends before converting entire input string
how to deal with timestamp to date conversion?
If you want to just compare and check only he dates use trunc on both LHS and RHS.
SELECT ... FROM ...
WHERE trunc(my_date)=(select trunc(RESULT) FROM A)
... ;
This will just compare the dates by truncating the timestamp values
You can use the combination of "TRUNC" and "IN" keywords in your query to achieve what you are expecting. Please check the below query sample as a reference.
SELECT * FROM customer WHERE TRUNC(last_update_dt) IN (select DISTINCT (TRUNC(last_update_dt)) from ... )
Cheers !!
I have the next idea :
SELECT TO_CHAR('14:00:00','HH24:MI:SS') - MIN(TO_CHAR(DATETIME,'HH24:MI:SS')) AS MINFECHA
FROM ARCHIVO2
WHERE DIA='LUNES';
I want to get the difference between the 2 fields that should be something like
00:46:00
Any comment will be appreciated.
You can't add/subtract dates and times when they're in character strings. To accomplish what you're trying to do you need to convert the character strings to DATE values, perform the necessary calculations, and then convert the result back to a character string:
WITH DATE_DATA AS
(SELECT DIA,
DATETIME,
TO_DATE(TO_CHAR(DATETIME, 'DD-MON-YYYY') || ' ' || '14:00:00', 'DD-MON-YYYY HH24:MI:SS') AS BASE_TIME
FROM ARCHIVO2)
SELECT DIA,
DATETIME,
BASE_TIME,
(DATETIME - BASE_TIME) * 1440 AS MINUTES_LATE
FROM DATE_DATA;
SQLFiddle here
Best of luck.
I've a timestamp value in the format 2005-01-31T00:00:00.000-05:00. I want covert it to a number in the format20050131, to equate it to a column which has the datatype of number.
I tried to do it by to_number(to_date(timestamp, 'yyyymmdd')). But it is resulting in error not a valid month.
Could you please help me in resolving it.
try using like below
to_number(to_char(timestamp, 'yyyymmdd'))
first you have to convert to char and then to number.
If your timestamp value is a VARCHAR2 value, maybe this will help:
WITH tstmp AS (
SELECT '2005-01-31T00:00:00.000-05:00' AS val FROM dual
)
SELECT TO_NUMBER(TO_CHAR(FROM_TZ(TO_TIMESTAMP(SUBSTR(val, 1, 23), 'YYYY-MM-DD"T"HH24:MI:SS.FF3'), SUBSTR(val, 24)) , 'YYYYMMDD')) AS newval
FROM tstmp;
I need to convert a date string -'2013-01-01' to number --20130101 type..How can I accomplish it in Oracle efficiently?
My Input-
'2013-01-01'
My Output
Output-20130101
select to_number(replace('2013-01-01', '-')) from dual;
You can convert the string to date and convert back using the format that you want to:
select to_char(to_date('2013-01-01', 'YYYY-MM-DD'), 'YYYYMMDD');
More information about datetime format:
http://docs.oracle.com/cd/B19306_01/server.102/b14200/sql_elements004.htm
to_char(your_date,'YYYYMMDD')
Just the basics of using to_char with a date here.
You can also "exploit" the format mask:
select to_number('2013-01-01', '9999G99G99', 'nls_numeric_characters=,-')
from dual
Here is a sqlfiddle demo
To convert date string to number:
Always convert it to char first then to number:
Select TO_NUMBER(TO_CHAR(to_date('2013-01-01', 'YYYY-MM-DD'),'YYYYMMDD')) from dual
if your column datatype is DATE then use your column name in place of sysdate in the below:
Select TO_NUMBER(TO_CHAR(sysdate,'YYYYMMDD')) from dual
I have to perform some inserts into an Oracle DB. I have some dates
in the following format
'23.12.2011 13:01:001'
Following the documentation I wrote inserts to_date as follows:
to_date('23.12.2011 13:01:01', 'DD.MM.YYYY HH24:MI:SS')
which works properly. Now I have dates with milliseconds with the format
'23.12.2011 13:01:001'
I've tried the following:
to_date('23.12.2011 13:01:001', 'DD.MM.YYYY HH24:MI:SSFF3')
which is incorrect (delivers an error 01821. 00000 - "date format not recognized").
Which "String" should I use for this format with milliseconds?
An Oracle DATE does not store times with more precision than a second. You cannot store millisecond precision data in a DATE column.
Your two options are to either truncate the string of the milliseconds before converting it into a DATE, i.e.
to_date( substr('23.12.2011 13:01:001', 1, 19), 'DD.MM.YYYY HH24:MI:SS' )
or to convert the string into a TIMESTAMP that does support millisecond precision
to_timestamp( '23.12.2011 13:01:001', 'DD.MM.YYYY HH24:MI:SSFF3' )
TO_DATE supports conversion to DATE datatype, which doesn't support milliseconds. If you want millisecond support in Oracle, you should look at TIMESTAMP datatype and TO_TIMESTAMP function.
Hope that helps.
For three digits millisecond:
TO_CHAR(LN_AUTOD_UWRG_DTTM,'MM/DD/YYYY HH24:MI:SS.FF3')
For six digits millisecond:
TO_CHAR(LN_AUTOD_UWRG_DTTM,'MM/DD/YYYY HH24:MI:SS.FF'),
You can try this format SS.FF for milliseconds:
to_timestamp(table_1.date_col,'DD-Mon-RR HH24:MI:SS.FF')
For more details:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/functions193.htm
You have to change date class to timestamp.
String s=df.format(c.getTime());
java.util.Date parsedUtilDate = df.parse(s);
java.sql.Timestamp timestamp = new java.sql.Timestamp(parsedUtilDate.getTime());