I am trying to check if a regulation's date reminder is today and regulation's date end not yet passed then I do not want it to display. The problem is that the query that I made isn't working in mysql. Can anyone help me to revise my query?
Here is my query:
$query="select * from t_regulation where dt_reminder >= '$today' and dt_ended ='$today'"
This is assuming that your dt_reminder columns type is DATETIME, and not some sort of timestap.
SELECT * FROM t_regulation WHERE DATE(dt_reminder) >= CURDATE() AND DATE(dt_ended) = CURDATE()
You can do many funky things with date functions;
Mysql date/time functions
Very frequently I run into the problem that my date variable is a string that is not properly formatted for the default date time stamp in Mysql.
Remember it should be 'yyyy-mm-dd' for this comparison.
Also, for since the 'date ended' has not yet passed, shouldn't it be:
$query="select * from t_regulation where dt_reminder >= '$today' and (dt_ended > '$today' or dt_ended is null)"
Related
I have timestamp values in my db. It has values like 2014-11-25 10:30:00.
I need to get all records between two dates and that has time between certain range like between 2014-10-20 to 2014-11-25 and between 9am to 7pm..
I need the query for this...
You can use the following query , I used it in my code for displaying data between two dates.
SELECT * from tablename WHERE columnname BETWEEN '2014-10-20 00:00:00' AND '2014-11-25 23:59:59'
The query includes start time of the particular date to end time of ending particular date.
You edit your query according to your start and end timings.
You can use internal mysql functions for convert datetype.
I think you need DATE() and TIME() functions.
Details you can find here
Thanks for your reply guys. I have found the answer
SELECT * FROM alerts
WHERE DATE BETWEEN '2014-11-16' AND '2014-11-26'
AND TIME(DATE) BETWEEN '09:00' AND '19:00'
Is giving the expected result.. :-)
I am using mysql. I want to display records between two dates.
I searched through web and found that mysql's date format is yyyy/mm/dd.
so I am writing query as follows,
select
*
from tbl_reservation
where
current_date between '2014-03-28' and '2014-03-26';
But, I don't know why it is not working. "col_date" has DATE datatype. I am not storing time in it.
Let me give you some idea what i have done at back end,
SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
Date curr_date=new Date();
String compareDate=sdf.format(curr_date);
And I am storing this value in "col_date". Is it happening because of this processing?
Thanks for your valuable time in advance.
With BETWEEN, use least date first, latest date next
It should be:
select * from tbl_reservation
where col_date between '2014-03-26' -- least date
and '2014-03-28'; -- latest date
Write lower date value first.
SELECT * FROM tbl_reservation WHERE col_date BETWEEN '2014-03-26' AND '2014-03-28'
I have set column name as current_date. Actually it is a function in mysql. So i can not use current_date as column name. Thanks I learned something new today. Thank you Masters.
im having a problem where i cant think of a solution, maybe im having a bad table-structure or i just dont know enough about mysql select commands to think of a good solution. Maybe you can help me out:
So i got a table that has a Column with the Date-format (yyyy-mm-dd) i wanted to select all upcoming dates so i did:
SELECT * WHERE date >= now.
This worked kinda well but i also got "dates" where only the year is entered (2014-00-00) i also wanted to select these but "now" is already bigger so i made another column with the year only and if the month, date or both arent known i will use 0000-00-00 and the Column "year" now i could select like this:
SELECT * WHERE date >= now AND year >=now(year)
Now all entrys with 0000-00-00 wont be selected. If i use OR the entrys from last year will be shown.
So thats my problem, is there any way i can change my table so i can have entries with only the year or only year and month and of course all together? I already considered get rid of the date-format and use simple INT with seperated columns for year, month and date. But i think i will have the same problem.
Sometimes i just want to do a capsuled select like
SELECT *
WHERE (date >= now AND year >= now(year))
OR date == "0000-00-00" (i know that this doesnt work)
If I understood your problem correctly, you could use this request:
WHERE (date >= now OR year > now(year))
There is probably a simpler way though, that would preserve your design, like initializing at January 1st (01-01) instead of 00-00
I think you can use this code:
$_SESSION['month'] = //set here your selected month
$_SESSION['year'] = //set here your selected year
SELECT * FROM table WHERE DATEPART(m,date) >= '".$_SESSION['month']."' AND DATEPART(yyyy,year) >= '".$_SESSION['year']."' AND date <> '0000-00-00'
Change your table structure format. Actually just allow for that field to have null value when not entered. By default it will be null then. You shouldn't be storing 0000-00-00 as a value for Date type field. I would rather leave it as null , or as suggested in some of previous answers, initialize it with some other date. It would be much easier to manipulate with database then.
the problem is that half of you write is not MySQL and your database schema is terrible...
You have the following problems:
column data date does not have the date data type.
To fix it, you need to add a cast to the select statement eg. cast(datecolumn as date)
select * from table where cast(datecolumn as date) >= '2014-01-10';
the way to use now date is using the now function.
select now(), date(now());
result> 2014-01-10 11:11:36, 2014-01-10
select * from table where cast(datecolumn as date) >= date(now());
Because your datecolumn is not a date (2014-00-00 is not a valid date), you need to use string manipulation to extract the year.
select substring('2014-01-01', 1,4)
result> 2014
select * from table where substring(datecolumn, 1,4) = year(now());
The comparassion operator is = and not ==
the select statement syntax looks like this (pay attention because you are missing the table in your statement)
select * from [Table] where [column] = condition ...
You probably need or instead of ands, therefore your query should look like this:
select * from FooTable where
cast(datecolumn as date) >= date(now())
or substring(datecolumn, 1,4) >= year(now())
or datecolumn = '0000-00-00'
You should use something like phpmyAdmin or mySQL workbench to test your sql queries before try to use them on php, java or whatever is your programing language.
i need to retreive data from database with the condition from date to to date using between query,
my query is,
select * from Master where Date between '01-08-2013' and '30-08-2013'
but it retreive all data from the table...
i need only data with in that date..
i tried another one like,
select * from PatientMaster where EntryDate >= '01-08-2013' and EntryDate<= '30-08-2013'
how its posible..
whats wrong with my query...
sorry im very bad in english...
thank you in advance...
A date string has the syntax YYYY-MM-DD and not DD-MM-YYYY
select * from Master
where `Date` between '2013-08-01' and '2013-08-30'
for that you can use
select * from Master where Date >='01-08-2013' and dateadd(dd,1,'30-08-2013')
You have to convert your strings to dates. This page shows you how to do it in mysql, which is what you have tagged. For sql server, which is in your subject line, use this page.
Then you do a slight modification of your 2nd attempt. Instead of
and EntryDate <= the end date
you want
and EntryDate < the day after the end date
That takes care of any time components. It might not matter in your case, but it's a good habit to get into.
You'll be looking for an query that works with your format? (dd-mm-yy)
CAST to the desired format!
http://www.w3schools.com/sql/func_convert.asp
105 = dd-mm-yy
SELECT * FROM Master
WHERE CONVERT(date, Date, 105) BETWEEN '01-08-13' and '30-08-13'
Be conscious with regards of the choice of data type for date Columns,
with or without time, day or year first etc. and please do not use varchar
for dates...
know that it CAN be confusing to call a date column for only Date...
be consistent with high/lower case.
I want to return results from my table that have a date less than today's date. Here is my statement:
$today = date('Y-m-d');
SELECT * FROM events WHERE STR_TO_DATE('$today', '%Y-%m-%d') > wp_eventscalendar_main.eventStartDate
I can select events in the future without a problem but when I try to select events in the past I don't get any results. My column 'eventStartDate' is set as a Date. Is there some kind of special operator I should be using for this?
Thanks,
You probably need:
SELECT * FROM events WHERE CURDATE() > wp_eventscalendar_main.eventStartDate
MySQL tries to compare a String to a Date, which won't work reliably.
You can Use
select from table_name where date < curdate()