I need to retrieve data from within a specific date range.Anybody can help me to create a query to getting the information within date range 12-12-2009 to 12-15-2009 from a mysql table.(including 12 and 15)
SELECT * FROM foo WHERE timestamp BETWEEN "2009-12-12" AND "2009-12-15"
Use this function in php first
function ChangeDateforDB($inputdate) {
if($inputdate>0) {
$month = substr($inputdate,0,2);
$date = substr($inputdate,3,2);
$year = substr($inputdate,6,4);
$show = $year."-".$month."-".$date;
return $show;
}
}
After that you can use this in query like this in the checking condition,
checkdate >= '".ChangeDateforDB($fromdate)."' and checkdate <= '".ChangeDateforDB($todate)."'
Check this one, you can get the correct answer.
SELECT ... WHERE DATEDIFF('2009-12-15',yourdatefield) <= 3 ...
Related
I need to find max date from a table(mysql database). I am storing my date as varchar.
select max(completion_date) from table_name returns wrong value.
http://sqlfiddle.com/#!9/c88f6/3
Assuming the date time format you have in your fiddle (e.g. '12/19/2012 05:30 PM') then:
select max(STR_TO_DATE(completion_date, '%m/%d/%Y %l:%i %p')) from test;
http://sqlfiddle.com/#!9/c88f6/15
It's unclear if you want to factor the time into your rankings or just the date. This example accounts for time too, but you can remove that part of the formatter if desired.
I am not sure why you would want to keep it as varchar not date.
But this will work for varchar:
SELECT completion_date
FROM test
ORDER BY STR_TO_DATE(completion_date, '%m/%d/%Y') DESC LIMIT 1;
http://sqlfiddle.com/#!9/c88f6/10
<?php
// Store dates
$dates = array();
// Loop through and transfer the result set
foreach ($result as $row => $data) {
$dates[$row] = $data['date'];
}
// Sort the array
usort( $dates, "date_sort_function" );
// Max is last date in array.
foreach ($dates as $date) {
$max = $date;
}
?>
Well, something like that. It is a php script and all you have to provide is the sorting function which returns 0 if equal, 1 if older, and -1 if earlier.
I want to select the data between two dates and I wrote the query as follows:
SELECT *
FROM hospital_details
WHERE expirydate BETWEEN '03/13/2015' AND '03/18/2015'
But it also displays the results of 03/17/2016
How can I solve it?
You could write single syntax.
SELECT * FROM hospital_details WHERE ExpiryDate BETWEEN '$Date' AND '$b';
The active record where function will take an associative array;
$array = array('expirydate >= ' => $Date, 'expirydate <= ' => $b);
$this->db->where($array);
or a custome string;
$where = "expirydate > ='$Date' AND expirydate < ='$b'";
$this->db->where($where);
Obviously, make sure your variables are in the right format.
Active record docs here
I have 2 buttons which execute a post operations and set a hidden variable which is used to set the MySQL query to filter the database according to date
if result = today
$query = "SELECT id,customer_name,CAST( `register_date` AS DATE ) AS dateonly,status,
DATE_FORMAT(book_date, '%m/%d/%y') FROM table WHERE book_date
BETWEEN (CURDATE() - INTERVAL 1 DAY) AND CURDATE()";
if result = week
$query = "SELECT id,customer_name,CAST( `register_date` AS DATE ) AS dateonly,status,
DATE_FORMAT(book_date, '%m/%d/%y') FROM table
WHERE book_date BETWEEN (CURDATE() - INTERVAL 7 DAY) AND CURDATE()";
I then want to use something like
$result=mysql_query($query);
while ($mytable=mysql_fetch_array($result))
{
loop and display all the information in array in a table
}
But I need the red bean equivalent of this.
The easiest way is to just paste the $query inside the sql function:
$results=R::getAll($query);
foreach($results as $row){
echo $row['id'];
}
The next way is to manually build the query.... which may just make it look sloppier in my opinion:
$results=R::$f->begin()->select('id, customer_name, CAST( register_date AS DATE ) AS dateonly,status, DATE_FORMAT(book_date, '%m/%d/%y')')->from('table')->where('book_date BETWEEN (CURDATE() - INTERVAL 1 DAY) AND CURDATE())->get();
The final way is to grab results via redbean and handle them manually:
$results=R::find('table','book_date BETWEEN (CURDATE() - INTERVAL 7 DAY) AND CURDATE()');
Then loop through the results, configuring data along the way in php.
I always use this when I have to access a lot of data from mysql:
while ($row = mysqli_fetch_array($query)) { #converts query into array
$array[] = $row;
}
$array will be a multidimensional array. $array[x][column_name] will get you your data, x being the row which you want to access it from. Hope this helped.
I'd like to count the number events that occur on each day over the last month, but also include a count of zero when no events are found. Is that possible?
Here's what I'm starting from...
SELECT COUNT(*) AS count,
DATE(usage_time_local) AS d
FROM usages
WHERE user_id=136
AND DATE(usage_time_local) >= DATE('2011-04-24')
AND DATE(usage_time_local) <= DATE('2011-05-24')
GROUP BY DATE(usage_time_local);
UPDATE: Given the answer, I implemented a code solution by initializing a loop and then filling in the details.
$dailyCount = array();
for( $i=1; $i<=30; $i++ ) {
$day = date('Y-m-d',(time()-($i*24*60*60)));
$dailyCount[$day] = 0;
}
foreach( $statement as $row ) {
$dailyCount[$row['d']] = $row['count'];
}
You can't do this with standard SQL queries - you'd be trying to group on a date(s) that doesn't exist in the table.
Standard workaround is to make a temporary table that contains the date range in sequential order with no gaps, join that against your table and do the count/aggregate as usual.
My Current query is:
SELECT DISTINCT DATE(vote_timestamp) AS Date, COUNT(*) AS TotalVotes FROM `votes`
WHERE vote_target_id='83031'
GROUP BY DATE(vote_timestamp) ORDER BY DATE(vote_timestamp) DESC LIMIT 30
(line breaks separated for readability)
Where vote_timestamp is a time for each "vote", Count(*) is the count for that day, and vote_target_id is the specific target of the vote.
Currently, this works for all days in which the target has at least one "vote", but I would like it to also return TotalVotes as 0 for days where there are no votes, rather than having no row at all.
Can this (and how?) be done in MySQL or PHP? (either is fine, as it is futher processed by PHP so either code can be used).
Thank you
The problem is how to generate records for days that have no rows. This SO question has some approaches.
Looking at that solution, it looks like for me it's much simpler to do this quick fix that sorta works.
$result = mysql_query($sql) or die('Internal Database Error');
if (mysql_num_rows($result) == 0) { return false; }
while($row = mysql_fetch_assoc( $result )) {
$votes[$row['Date']] = $row['TotalVotes'];
}
// fill 0s with php rather than using mysql
$dates = array_keys($votes);
for ($t = strtotime($dates[count($dates)-1]); $t <= time(); $t +=86400) {
$date = date('Y',$t).'-'.date('m',$t).'-'.date('d',$t);
if (!array_key_exists($date,$votes)) {
$votes[$date] = 0;
}
}
thanks though,