I want to find the number of days between today and selected date.
I used one query
SELECT DATEDIFF(CURDATE(), TILLDATE) FROM interestpr_table WHERE GLID="150";
But it returns NULL as result. How to fix?
As your TILLDATE is in format YYYY-MM-DD, you need to change it in YYYYMMDD format so that DATEDIFF would accept it as valid format.
SQLFIDDLE
For converting your date to format which DATEDIFF accept, you can use DATE_FORMAT like this :
SELECT DATEDIFF(curdate(),DATE_FORMAT(TILLDATE,'%Y%m%d')) // '%Y%m%d'converts it into YYYYMMDD format
SQLFIDDLE for conversion
Related
So I'm trying to insert dates into a table and the date is in this format:
8/3/2021
However I want to add a leading 0 before the month and day so the date shows 08/03/2021. Also I want to add it as a string concatenated with another string so test123-08/03/2021
If you really store date in that format then you may try this:
SELECT
DATE_FORMAT(STR_TO_DATE(date_col_string,'%d/%m/%Y'),'%d/%m/%Y') as 'zero-padded',
CONCAT(string_val,'-',DATE_FORMAT(STR_TO_DATE(date_col_string,'%d/%m/%Y'),'%d/%m/%Y')) as 'concatenated'
FROM mytable;
Use STR_TO_DATE() function to change the date value to standard MySQL date format of YYYY-MM-DD then use DATE_FORMAT() function to display the date value as per your desired output. The second operation is adding CONCAT() function on the converted date with your selected string. I'm assuming that your date value is d/m/y, because as #Stu mentioned in the comment, since you're not storing as MySQL standard date format, that means 8/3/2021 can be either d/m/y or m/d/y. With a standard date format value, the query would be shorter:
SELECT
DATE_FORMAT(date_col,'%d/%m/%Y') as 'zero-padded',
CONCAT(string_val,'-',DATE_FORMAT(date_col,'%d/%m/%Y')) as 'concatenated'
FROM mytable;
Demo fiddle
You should be inserting your source dates into a proper date or datetime column. Then, to view your dates in the format you want, use the DATE_FORMAT() function with the appropriate format mask:
SELECT DATE_FORMAT(date_col, '%d/%m/%Y') AS date_out
FROM yourTable;
In my table, there is a date column i.e. ORDER DATE which is in dd-mm-yyyy format, and the datatype of this date column is text. Now, I want to convert the format from yyyy-mm-dd. But the date format is not changing at all. Trying to use STR_TO_DATE but the year in the dates are coming as 2020 only. Not sure how to fix it or if there is a better way to convert the date in MySQL.
For example:
SELECT STR_TO_DATE('14-09-2017','%d-%m-%y') AS DATE;
Result coming as 2020-09-14
Or suppose
SELECT STR_TO_DATE('20-MAR-2018','%d-%b-%y') AS DATE;
Result coming as 2020-03-20
day and month are coming properly but the year is not coming. Kindly help how to get convert the date format correctly.
Try to change your command like this below and you will get the answer:
SELECT STR_TO_DATE('14-09-2017','%d-%m-%Y') AS DATE;
Refer to the documentation for more info about the commands.
I have stored the dates as string in my database.I know it is not good,but project already has been half developed before i take over and where dates were stored as string,so i was continuing the same way.
Now i want to select dates from table where date is greater than a specific date.
I tried the following query
SELECT
*
FROM
dates
where
STR_TO_DATE(date, '%Y-%m-%d') > "2014-01-01"
but it is not returning only greater values.
Please help me to solve problem.
Demo
Your dates are not in YYYY-MM-DD format. Use the right format!
SELECT *
FROM dates
where STR_TO_DATE(date, '%m-%d-%Y') > date('2014-01-01')
If you are going to store dates as strings, then the best way is in the ISO format of YYYY-MM-DD.
You should read the documentation on str_to_date() (here).
Convert everything to date and it should be fine. Now you are comparing date and string.
What type has the date? I'd prefer a ' instead of " for strings in SQL. Let's assume that date is a VARCHAR or TEXT field (depending on which database you are using):
SELECT *
FROM dates
WHERE STR_TO_DATE(date, '%Y-%m-%d') > STR_TO_DATE('2014-01-01', '%Y-%m-%d')
If date is a real DATE
SELECT *
FROM dates
WHERE trim(date) > STR_TO_DATE('2014-01-01', '%Y-%m-%d')
Or you just convert it into a number format date_format(date,'%Y%m%d') > 20140101
I have the following where clause
AND DATE_FORMAT( l.created_on, "%d/%m/%Y" ) BETWEEN '06/02/2013' AND '07/02/2013'
where created_on is a timestamp.
Now for some reason the query returns rows from previous months as well. anyone knows why?
NOTE :
I need the date to be in that specific format
Mysql string date format follows pattern yyyy-mm-dd. Do not convert to dates if you have timestamps, just compare the timestamps.
WHERE l.created_on
BETWEEN UNIX_TIMESTAMP('2012/02/06') AND UNIX_TIMESTAMP('2013/02/07')
if created_on is already a date (datatype),
you can directly query it using,
WHERE created_on BETWEEN '2013-02-06' AND '2013-02-07'
but if date is a string, use STR_TO_DATE
WHERE STR_TO_DATE(l.created_on, '%d-%m-%Y') BETWEEN '2013-02-06' AND '2013-02-07'
UPDATE 1
since you don't want to change the format of your inputted date, then you need to format it using STR_TO_DATE
WHERE l.created_on BETWEEN STR_TO_DATE('06/02/2013','%d/%m/%Y') AND
STR_TO_DATE('07/02/2013','%d/%m/%Y')
I've got an issue selecting a date range with MySQL.
SELECT MvtDate,date_format(MvtDate,'%d-%m-%Y')
FROM (`immmvt`)
WHERE date_format(MvtDate,'%d-%m-%Y') BETWEEN '01-01-2010' AND '02-01-2010'
mvtDate type is date like 2010-01-01 00:00:00.
When I run the query, the result works for the days and the months but it also show me other result from other years.
Like 01-01-2011 etc.
You should use STR_TO_DATE since you want to convert string back to date
SELECT MvtDate, date_format(MvtDate,'%d-%m-%Y')
FROM `immmvt`
WHERE MvtDate BETWEEN STR_TO_DATE('01-01-2010','%d-%m-%Y') AND
STR_TO_DATE('02-01-2010','%d-%m-%Y')
FYI: DATE_FORMAT() converts date to formatted string representation.
STR_TO_DATE() converts formatted string back to date
SELECT MvtDate,date_format(MvtDate,'%d-%m-%Y')
FROM (`immmvt`)
WHERE date_format(MvtDate,'%d-%m-%Y') IN ('01-01-2010', '02-01-2010')