Need to convert to Mon DD, YYYY HH:MM from YYYYMMDD.HHMMSS - sql

I need to convert Decimal(17,9) datatype to Timestamp(6).
Example, I am having Decimal(17,9) value as 20150619.154519 and I need to convert it to timestamp like Jun 19, 2015 15:45.

You have a strange format. First convert it to a string, then to a date:
select to_date(to_char(col, '99999999.999999'), 'YYYYMMDD.HHMISS')
Actually, this would probably work without the to_char() part, but it seems safer to do the conversion explicitly.

Related

How to insert DD MON YYYY format value into a date column in a snowflake table

My csv file has a date column having values in DD MON YYYY format eg: 28 Nov 2022.
When i tried inserting it into a date column(datatype= DATE) it is showing the below error. I have also tried using TO_DATE , TO_VARCHAR but getting the same error.
Kindly help me to resolve this.
Error: Date '28 Nov 2022' is not recognized
I want to insert the value in the same format (DD MON YYYY) into a column of date data type ,without changing the format i.e '28 Nov 2022'.
I was reading documentation (https://docs.snowflake.com/en/sql-reference/data-types-datetime.html#date) and i read: "DATE accepts dates in the most common forms (YYYY-MM-DD, DD-MON-YYYY, etc.)."
So i think the format you are trying to write is a no-supported date format.
you can:
format your date in a supported date format before write field in db.
write in a varchar datatype field, but in this case you'll lose all tools on date type.
I don't see other ways!

How to convert string with GMT to date in Athena

I have a column filled with dates in string format, e.g. 2023-01-31 11:21:33 GMT.
I am trying to write a query that will select a year and a month and will do some calculations later on. My standard approaches using EXTRACT(YEAR FROM a)) etc. did not work. Therefore, I am trying to parse datetime using PARSE_DATETIME(a, 'yyyy-mm-dd hh:mm:ss'). The thing is, I don't know how to format "GMT" and google did not help with that.
The error message is INVALID_FUNCTION_ARGUMENT: Invalid format: "2023-01-31 11:21:33 GMT" is malformed at "GMT".
Use 'yyyy-MM-dd HH:mm:ss z':
select parse_datetime('2023-01-31 11:21:33 GMT', 'yyyy-MM-dd HH:mm:ss z')
Output:
_col0
2023-01-31 11:21:33.000 UTC
parse_datetime is Java date function which uses JodaTime’s DateTimeFormat pattern format which is mostly compatible with java.text.SimpleDateFormat with z matching general timezone.

convert Date to DD-MMM-YY in redshift

I have a requirement to convert the yyyy-MM-dd date format into DD-MMM-YY.
e.g.: 2018-06-14 -> 14-JUN-18.
I tried to_char(date,'DD-MMM-YY'), however it's resulting in 14-06M-18.
Is this possible?
The format mask for the three letter month abbreviation in all caps is MON, not MMM:
to_char(date, 'DD-MON-YY')
Maybe you are coming from another API/language where MMM would have worked in that case.

Cannot convert PSQL string to timestamp

I am trying to do a simple string to date conversion; however, PSQL complains when there is a timezone in that string. Their documentation clearly states that its supported; however, it complains. I don't even care about the timezone, I just want to convert the string.
db=> select to_timestamp('Mon Feb 23 13:43:07 PST 2015', 'Dy Mon DD HH24:MI:SS TZ YYYY')::timestamp without time zone;
ERROR: "TZ"/"tz" format patterns are not supported in to_date
Postgres version: 9.3.10
http://www.postgresql.org/docs/9.3/static/functions-formatting.html
Why not try a straight cast?
SELECT 'Mon Feb 23 13:43:07 PST 2015'::timestamp with time zone
Once you've done this it's pretty easy to work with the date object.

SQLite Data Time Function

I currently have a timestamp in this format Tue Jun 03 17:17:05 +0000 2014 in one column in my table. I want to count the number of records happening in specific intervals (15 minutes). I have tried to follow the answer found in Group records by time. Although my timestamp is in a different format and I haven't seen any support function available in SQLite to convert this. Is this possible in SQL?
The SQLite date and time functions can be used to convert a timestring to a canonical format, or to a Julian Day Number. Unfortunately, the SQLite date and time functions only accept timestring in a limited number of formats:
YYYY-MM-DD
YYYY-MM-DD HH:MM
YYYY-MM-DD HH:MM:SS
YYYY-MM-DD HH:MM:SS.SSS
YYYY-MM-DDTHH:MM
YYYY-MM-DDTHH:MM:SS
YYYY-MM-DDTHH:MM:SS.SSS
If your timestring format has fixed field widths, you can use the substr function and the || string concatenation operator to convert it to a format SQLite understands. You'll have to use a case expression to convert the month names to numbers; here's an example.
You may use NEW_TIME in Oracle to convert the time to a specific timezone. Here is an example. This example is converting SYSDATE from PDT to GMT.
SELECT NEW_TIME (SYSDATE, 'PDT', 'GMT') FROM DUAL;
This thread is detailing how to add required minutes to your timestamp.