Is there a function in MySQL like in Postgres where I can convert the current timestamp to another timezone?
In Postgres, I do this like these:
SELECT now() AT TIME ZONE 'PST'
and it converts it on its own. How do I do this in MySQL? is there anyway?
Thanks
Use the CONVERT_TZ() for this.
Syntax:
CONVERT_TZ(dt,from_tz,to_tz)
CONVERT_TZ() converts a datetime value dt from the time zone given by from_tz to the time zone given by to_tz and returns the resulting value.
Try this:
SELECT CONVERT_TZ(now(),##session.time_zone,'-08:00');
Here is the reference.
now() -the current time
##session.time_zone -gives the current time zone(local)
-08:00 -required format in PST.
I actually solved! HAH!
Anyway, I used this:
SELECT CONVERT_TZ(NOW(),SUBSTRING(TIMEDIFF(NOW(), UTC_TIMESTAMP), 1, 6),'-05:00') AS est_timezone
Basically the query interprets as:
SELECT CONVERT_TZ(NOW(),'-08:00','-05:00') AS est_timezone
I finally got my current timezone which is -08:00 and will convert it to -05:00. This way, I can now proceed with my previous query to making it a VIEW.
Related
Basically my date in MySql table looks like this
2001-04-16
The format is actually day-month-year. Unfortunately 20 is added to the date. So finally i should update this date. This should become
01-04-2016
How to update my all date format in my table
Don't change this in the database, change it when you need to display it. The ISO date format is what's used internally and should be kept that way, it's the most native, efficient format, and it sorts correctly.
You can select them out:
SELECT DATE_FORMAT(date_column, '%d-%m-%Y') FROM table_name
Using the DATE_FORMAT() function.
Even better is to do this in your application layer, whatever that is, using a date formatting function tuned to the user's locale.
If you've got a bunch of bad data in your database you need to convert, you can re-write it with the DATE_FORMAT() function to strip out the mistakes.
For example:
UPDATE table_name SET date_column=DATE_FORMAT('20%d-%m-%y', date_column)
For mysql, MySQL retrieves and displays DATE values in 'YYYY-MM-DD' format. so you can fetch date in whatever format you want from database, please see https://dev.mysql.com/doc/refman/5.6/en/datetime.html for more info.
you can use DATE_FORMAT() function :
SELECT DATE_FORMAT('%d-%m-%Y', date) as desired_date FROM table_name where 1
Hi I'm writing queries for MySQL, and now my database has a column containing the timestamp in this format: 7/14/2015 7:57:49 AM, but I need to use the DATEDIFF function, so how can I convert the timestamp into the format like: 2015-7-14 (or 2015-07-14, I'm not sure which one is correct; just the date)?
This should convert your string to just the date in a date format, then you can use DATEDIFF on the date fields in question:
SELECT STR_TO_DATE(LEFT(t,LOCATE(' ',t) - 1), '%m/%d/%Y') FROM my_table;
The LEFT function will take the substring to the left of the space, which is just your date, then STR_TO_DATE will convert that substring to a date the system can use.
(Not knowing your field and table names, I used t and my_table.)
You don't need to. The way MySQL displays timestamps has nothing to do with the way they're stored internally; as long as it's TYPE TIMESTAMP or some compatible type, the DATEDIFF() function will know what to do with it.
TIMESTAMPs are actually stored as a really huge integer representing (I think) milliseconds from Midnight UTC, January 1st, 1970. The display format is determined by a system global variable, and has nothing to do with the actual value.
Converting from a string to a DATETIME or TIMESTAMP is actually also fairly straightforward using the STR_TO_DATE() function; in your case the format string would be something like
STR_TO_DATE('%c/%e/%Y %l:%i:%s %p', datecol)
although you might have to experiment a bit to make it work reliably.
What time is it in MySQL: 1343821692?
Few aplications that I use store it in that format.
Also I have time stored like this: 2012-08-01 13:41:1 - how to convert those two time types into each another?
It is a unix timestamp:
select FROM_UNIXTIME(1343821692)
SELECT UNIX_TIMESTAMP('2012-08-01 13:41:1');
See from_unixtime and unix_timestamp
When I insert data into my MySQL database, a lot of the time I need to store the current datetime. I always want to store my datetimes as UTC time.
How do I store the current UTC time? Is there a built-in function or do I have to apply an offset to NOW()?
In MySQL you can use UNIX_TIMESTAMP() which can provide all kinds of Date and Time Values and specific to your request you can use UTC_TIMESTAMP, UTC_TIMESTAMP() which returns the current UTC date and time as a value in YYYY-MM-DD HH:MM:SS or YYYYMMDDHHMMSS.uuuuuu format, depending on whether the function is used in a string or numeric context.
Example:
mysql> SELECT UTC_TIMESTAMP(), UTC_TIMESTAMP() + 0;
-> '2003-08-14 18:08:04', 20030814180804.000000
More Info is described here about MySQL Date/Time Functions:
http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_unix-timestamp
You can update the timezone property in your my.cnf file:
[mysqld_safe]
timezone = UTC
I have a column that uses time stamp. My question is I am a bit confused about how to make queries against it,how would I say
Where $time is after X date
Are queries made in local time or CUT?
When I just try to do where andthe post date /time I get an error because of the space and if I quote it I think it takes it as a string : /
What format do I use for the date in the WHERE clauss !?!?
You can use the normal logical comparisons, for example:
SELECT * FROM table WHERE date >= '2010-01-31'
SELECT * FROM table WHERE date >= '2010-01-31 12:01:01'
Time is generally in your current local time, but you can run the query "SELECT CURTIME()" to check. Also, make sure you have the year-month-date in the right order... that can cause issues.
The manual has more details:
http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html
Assuming you talk about TIMESTAMP column type (not Unix timestamp) the format is either 'YYYY-MM-DD HH:MM:SS' (quoted) or YYYYMMDDHHMMSS
Atually, in the first case you can use any spearators you wish (or none), only numbers are taken into ccount