I'd like to only change the rows from the current hour on todays date.
// Have the current date
$date = "2019-03-21 17:14:03";
$rel = 8 // like an id.
$sql = "UPDATE graph SET code = '$code' WHERE myDate = '$date' AND rel = '$rel'";
if ($db->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $db->error;
}
You can use the DATE_SUB function.
For example:
$sql = "UPDATE graph SET code = '$code' WHERE myDate >= DATE_SUB(NOW(), INTERVAL 1 HOUR)"
This will return all values where myDate is in the past hour.
Use DATE_FORMAT to compute the beginning of the current hour, and compare it against your datetime column. You don't need to pass the date as a parameter, you can get the current date/time with NOW():
UPDATE graph SET code = :code
WHERE myDate >= DATE_FORMAT(NOW(), '%Y-%m-%d %h:00:00') AND rel = :rel
You can do it in this way by ultilising HOUR() function in MYSQL:
$sql = "UPDATE graph SET CODE = '$code' WHERE DATE(myDate) = '$date' AND HOUR(NOW()) = HOUR ('$date') AND rel = '$rel'"
Related
Here is my code for updating the date field for all records that have the field WorkoutID = $currentWorkoutID. When I run the query the dates change to 0000-00-00 and not to the current date. How can I fix this? Btw DB::getInstance() executes the query. I think something is wrong with the actual query?
$currentWorkoutID = $_SESSION['GlobalWorkoutID'];
echo $currentWorkoutID;
$date = date("y/m/d");
echo $date;
$sql = "UPDATE workout SET Date = ".$date." WHERE WorkoutID = ".$currentWorkoutID."";
DB::getInstance()->query($sql);
include single quotes ' for date
$sql = "UPDATE workout SET Date = '".$date."' WHERE WorkoutID = ".$currentWorkoutID."";
^ ^
i agrre with the answer
$sql = "UPDATE workout SET Date = '".$date."' WHERE WorkoutID = ".$currentWorkoutID."";
because maybe the type of Date is String ,
hope to help you,thank you
Try this
$sql = "UPDATE workout SET `Date` = '".$date."' WHERE WorkoutID = ".$currentWorkoutID."";
Because date is a reserved keyword
I have saved rows in my table with custom timezone.Now I want to retrieve data from those table for just today.
So here is what I tried
date_default_timezone_set('America/Los_Angeles');
$dt = new DateTime();
$today = $dt->format('Y-m-d'); //outputs 2015-12-07
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE `date` = '$today'" );
And my row contains date in timestamp format like 2015-12-07 22:42:02
But I get empty result.
Try this:
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE DATE(date) = CURDATE()" );
to convert time according to timezone: ConvertTimeZone
if $today='2015-12-07 22:42:02'; your query will give the result.
$today='2015-12-07 22:42:02';
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE `date` = '$today'" );
else do pass the today date and next date and retrieve the value as given
$today='2015-12-07';
$next='2015-12-08';
$ok = mysqli_query($sqli,"SELECT * FROM `table` WHERE `date` >= '$today' and `date` <= '$next' " );
for more details refer this Oracle SQL : timestamps in where clause How to compare Timestamp in where clause
You should convert date to timestamp before passing it to mysql:
date_default_timezone_set('America/Los_Angeles');
$dt = new DateTime();
$today = $dt->format('Y-m-d'); //outputs 2015-12-07
$ok = outputs("SELECT * FROM `table` WHERE DATE_FORMAT(date,'%Y-%m-%d')= $today" );
I am trying to get the records per current day, week and month in php mysql. The date column is of date type. The issue is here is that my week records and months records are getting same from below script. Here is my code, have a look.
public function getTodayComing(){
$connection = db::factory('mysql');
$sql = "select * from bookings,bookers where ";
$qualifier = ' bookings.booker_id = bookers.id
AND ((status ="'.AppGlobal::$bookingStatus['APPROVE'].'"
OR status ="'.AppGlobal::$bookingStatus['RESCHEDULED'].'"
OR status ="'.AppGlobal::$bookingStatus['RECONSULTED'].'")
AND date=DATE( NOW() ))
ORDER BY date ASC';
$sql. = $qualifier;
return $valuearray = $connection->getArray ($sql );
}
public function getWeekComing() {
$connection = db::factory('mysql');
$sql = "select * from bookings,bookers where ";
$qualifier = ' bookings.booker_id = bookers.id
AND ((status ="'.AppGlobal::$bookingStatus['APPROVE'].'"
OR status ="'.AppGlobal::$bookingStatus['RESCHEDULED'].'"
OR status ="'.AppGlobal::$bookingStatus['RECONSULTED'].'")
AND date > DATE_SUB(NOW(), INTERVAL 1 WEEK)) ORDER BY date ASC';
$sql. = $qualifier;
return $valuearray = $connection->getArray( $sql );
}
public function getMonthComing() {
$connection = db::factory('mysql');
$sql = "select * from bookings,bookers where ";
$qualifier = ' bookings.booker_id = bookers.id
AND ((status ="'.AppGlobal::$bookingStatus['APPROVE'].'"
OR status ="'.AppGlobal::$bookingStatus['RESCHEDULED'].'"
OR status ="'.AppGlobal::$bookingStatus['RECONSULTED'].'")
AND date > DATE_SUB(NOW(), INTERVAL 1 MONTH)) ORDER BY date ASC';
$sql. = $qualifier;
return $valuearray = $connection->getArray( $sql );
}
Aah, I just saw it I think
date > DATE_SUB(...)
should be
date BETWEEN CUR_DATE() AND DATE_ADD(CUR_DATE(), INTERVAL 1 ...)
Im trying to do a mysql check if a record from $uid exist from today based on $timestamp and if it doesnt then do an INSERT.
//EXAMPLE RECORD FROM TABLE VOTE
--- #vote_fb_uid# --- #vote_time#
665414807 1369219044
tjt
//STEP 1 - do a look up on $uid and check with timestamp $today
$timestamp = $this->time;
$date = date('Y-m-d', $timestamp);
$today = date('Y-m-d');
$sql = "
SELECT * FROM vote WHERE
vote_fb_uid = '$this->fb_uid',
WHERE vote_time = '$CHECK_IF_THERE_IS_AN_ENTRY_FROM_TODAY'";
$res = mysql_query($sql) or die( mysql_error());
//STEP 2 - If no records are found for today - then we do an INSERT
if($no_record_for_today) {
$sql = sprintf("
INSERT INTO vote(
vote_fb_uid,
vote_time)
VALUES ('%s','%s')",
mysql_real_escape_string($this->fb_uid),
mysql_real_escape_string($this->time));
$res = mysql_query($sql) or die( mysql_error());
}
Obviously im strugling with the SQL part for the look up - im wondering if there isnt some in-built SQL function to do this or similar?
to check if you had a vote in the last 24 hours :
SELECT *
FROM vote
WHERE vote_fb_uid = '$this->fb_uid'
AND FROM_UNIXTIME(vote_time) >= DATE_SUB(NOW(), INTERVAL 1 DAY)
if you want to limit to the same day (mean you are allowed to post at 2013.05.21 23:55 and 2013.05.22 00:05)
SELECT *
FROM vote
WHERE vote_fb_uid = '$this->fb_uid'
AND DATE(FROM_UNIXTIME(vote_time)) = DATE(NOW())
CURDATE()
Returns the current date as a value in 'YYYY-MM-DD' or YYYYMMDD format, depending on whether the function is used in a string or numeric context.
mysql> SELECT CURDATE();
-> '2008-06-13'
mysql> SELECT CURDATE() + 0;
-> 20080613
Try this:
$today = date('Y-m-d'); //change it to timestamp if you want in timestamp
$sql = "
SELECT count(*) as total FROM vote WHERE
vote_fb_uid = '$this->fb_uid' and
vote_time = '$today'";
$res = mysql_query($sql) or die( mysql_error());
if($res[0]['total'] < 1){
$sql = sprintf("
INSERT INTO vote(
vote_fb_uid,
vote_time)
VALUES ('%s','%s')",
mysql_real_escape_string($this->fb_uid),
mysql_real_escape_string($this->time));
$res = mysql_query($sql) or die( mysql_error());
} else{
//return error("custom","","Already Inserted.");
echo "already inserted";
}
Your $sql query have a syntax error, you have used two times clause WHERE the correct syntax to use two or more clauses in where is using AND to join them, to get only record wich don't have an entry for today you can use DATE_SUB with 1 day interval
SELECT *
FROM vote
WHERE vote_fb_uid = '$this->fb_uid',
AND vote_time <= DATE_SUB(vote_time, INTERVAL 1 DAY)
This question already exists:
SQL order by date, time [duplicate]
Closed 9 years ago.
I have table named notify with (seeker, donor, date) columns
the date column of type (datetime) and it stores the following format YYYY-MM-DD HH:MM:SS I'm trying to SELECT 1 record with the latest date from notify table and then compare the date with the current date and calculate the number of days between tow dates..
<?php
session_start();
$email = $_GET['email'];
date_default_timezone_set('Asia/Riyadh');
$time = date("Y-m-d H:i:s");
$note = "SELECT * FROM notify WHERE seeker='".$_SESSION['email']."'AND donor='".$email."' ORDER_BY `date` DESC LIMIT 1";
$st = $conn->prepare($note);
$st->execute();
if($found = $st->fetch(PDO::FETCH_ASSOC)){
$now = $time;
$old_date = strtotime($found['date']);
$dateif = $now - $old_date;
if(floor($dateif/(60*60*24)) >= 7){
echo "the difference between tow dates is 7 days or more";
} else { echo "difference between tow dates is less than 7 days";}
}
?>
the code is not working ! i have only one record in my notify table with this value in date 2013-04-22 09:15:47
First of all, you should use prepared statements like this:
$note = "SELECT *
FROM notify
WHERE seeker=:seeker AND donor=:donor
ORDER BY `date` DESC
LIMIT 1";
$st = $conn->prepare($note);
$st->execute(array(
':seeker' => $_SESSION['email'],
':donor' => $email,
);
Without the place holders you're still open to SQL injection.
Second, you can't compare a string with an integer in this way:
$now = $time; // string
$old_date = strtotime($found['date']); // integer
$dateif = $now - $old_date; // dunno?
You should compare apples with apples:
$seven_days_ago = strtotime('-7 days');
$old_date = strtotime($found['date']);
if ($old_date > $seven_days_ago) {
echo "difference between tow dates is less than 7 days";
} else {
echo "the difference between tow dates is 7 days or more";
}
Since your date column doesn't exist, there's no point in ordering by it. Also, you're exposed to SQL injection in the case where $_SESSION['email'] is not secured.
So, the correct form would be to use prepared statements, as well as order by the right column. (assuming PDO, you can use mysqli as well):
/** #var PDO $pdo - Assuming a PDO connection. */
$query = "SELECT * FROM `user` WHERE `ID` = :email ORDER BY `time` DESC";
$stmt = $pdo->prepare($query);
$stmt->execute(array($_SESSION['email']));
$result = $stmt->fetchAll(PDO::FETCH_ASSOC); //Get all results in an associated array form.
Jack's answer shows you how to use prepared statements correctly. Here is the code to simplify the date calculation using DATEDIFF().
$note = "SELECT *, DATEDIFF(NOW(), `date`) AS date_diff
FROM notify
WHERE seeker=:seeker AND donor=:donor
ORDER_BY `date` DESC
LIMIT 1";
$st = $conn->prepare($note);
$st->execute(array(
':seeker' => $_SESSION['email'],
':donor' => $email,
);
$row = $st->fetch(PDO::FETCH_ASSOC);
// do something with $row
If you are attching any variables to string then you need to concatinate them using dot and oder by will come after where condition and inside $_SESSION you missed quotes
$query = "SELECT * FROM user WHERE ID='".$_SESSION['email']."' ORDER_BY date, time";
For retrieving latest date from database please try executing following sql query
$query="SELECT * FROM user WHERE ID='".mysql_real_escape_string($_SESSION[email])."' ORDER_BY date,time desc limit 1";
In order to retrieve latest date you need to sort field for date in descending order
$note = "SELECT * FROM notify WHERE seeker=' ".$_SESSION['email']. " ' AND donor=' ".$email." ' ORDER_BY date DESC LIMIT 1";
have you try to order by desc? as shown bellow:
$note = "SELECT * FROM notify
WHERE
seeker=' ".$_SESSION['email']. " '
AND
donor=' ".$email." ' ORDER_BY date DESC LIMIT 1";
you forgot ` here around date. date is reserved word in mysql,
if you want to use it as column name place ` around it.
EDIT also you have extra space remove it
$note = "SELECT * FROM notify WHERE seeker='".$_SESSION['email']. "'
AND donor='".$email."' ORDER_BY `date` LIMIT 1";