how do i search dates using mysql.
Database fields are like this:
date
Monday, 21 December 2009 11:54:16
timeurl
1261376656
I have date text field: '21/12/2009'
how do i search date in the database. 'date' field type is varchar and timeurl type is timestamp
thanks
If you are asking about the date format you need to enter in your query it's:
For queries on a DATE column you should enter dates with format 'yyyy-MM-dd'.
For queries on a TIMESTAMP or DATETIME columns you should enter dates with format 'yyyy-MM-dd HH:mm:ss'
MySql is very flexible on this - you can actually use many other formats for insertion and querying as described here.
Related
I want to fetch all datas that corresponds in the chosen date range.
So the problem is that. When theres included time in the data. It can't fetch the required data to be displayed. But when I remove the time on it. It displays really well. What can I do to make it right?
EXAMPLE VALUES:
2018-10-29 01:21:29pm
2018-10-30 01:21:29pm
EXAMPLE VALUES THAT WORKS:
2018-10-29
2018-10-30
My query:
`"SELECT *,SUBSTRING(order_date,1,10) from orders where order_date >='$fromdate' AND order_date <='$todate'"`
Ideal Solution: You will need to change the datatype of order_date from Varchar(500) to Datetime type, using Alter Table command.
Now, it is noteworthy that the MySQL datetime value is in YYYY-MM-DD HH:MM:SS format. So firstly, you will need to change your datetime string to MySQL datetime format string. Otherwise, directly changing the datatype will lead to irreparable loss/truncation of data.
Your datetime value 2018-10-29 01:21:29pm is basically of YYYY-MM-DD HH:MM:SS AM/PM (12 hour format). In terms of format specifiers, it would be: '%Y-%m-%d %h:%i:%s%p'. Complete list of available format specifiers can be seen in MySQL docs.
Firstly, we use Str_To_Date() function to convert all your data into proper Datetime format.
UPDATE orders
SET order_date = STR_TO_DATE(order_date, '%Y-%m-%d %h:%i:%s%p');
Now, next step is simple. Just modify the datatype to datetime:
ALTER TABLE orders
MODIFY COLUMN order_date datetime;
Is there any way to convert a normal european date to a timestamp-value in mySQL?
I have a mysql database with a column date (varchar(64)) containing dates in european format like 01.12.15. For this I need a update-sql-query that converts all lines into timestamps.
Thanks for your help!
Use STR_TO_DATE to convert your date string 26.11.17 to a bona fide date. Then call UNIX_TIMESTAMP on that date to get the UNIX timestamp.
SELECT
UNIX_TIMESTAMP(STR_TO_DATE('26.11.17', '%d.%m.%y')) AS output
FROM dual;
1511650800
Demo
As i am trying to insert the date 'March16' which is March 2016 in mysql table x with datatype DateTime. But this gives me error incorrect date value.
Please help me . Thank you very much
'March16' is not a correct date format. You need to do STR_TO_DATE() or DATE_FORMAT().
Read more about above two.
If you want to insert only month and date
Mysql doc
Ranges for the month and day specifiers begin with zero due to the
fact that MySQL permits the storing of incomplete dates such as
'2014-00-00'.
This means that to store the year and month only, you
can use a DATE column and put 00 instead of the day. e.g 2013-12-00.
I am trying to store the date in mysql as mm-dd-yyyy.
The following query updates the table stores the date as 0000-00-00
UPDATE `h3`.`newbatch` SET `DateCreated` = '11-08-2013' WHERE
`newbatch`.`BatchID` =
1 AND `newbatch`.`DateCreated` = '2013-11-08' LIMIT 1
I can always use DATE_FORMAT(DateCreated,'%m %d %Y') during select but is there a way to store date in that format.
The datatype of DateCreated is Date.
I am using MySQL.
Thanks
Do not modify the storage format of a date. The format for the date data type is ISO 8601 standard for a reason. You will lose the ability to perform most date functions elegantly (without first converting to the standard date format). You do the formatting when you run a query.
I am working with a mysql database that somebody else created. I have a table with two different date fields one is called eventDate and is in the format YYYY-MM-DD and the other is called creationDate and is in the format M/D/YYYY H:MM:SS AM/PM
What I want to do is query the table and return results where the eventDate is the same as the creationDate but how do I convert the creationDate into YYYY-MM-DD format?
Try STR_TO_DATE() and a format matching the one used by your creationDate strings:
SELECT
…
WHERE DATE(STR_TO_DATE(creationDate, '%c/%e/%Y %r')) = STR_TO_DATE(eventDate, '%Y-%m-%d')
Perhaps MySQL would be able to convert YYYY-MM-DD strings to dates implicitly, so the second STR_TO_DATE() call might be unnecessary.