Select Query

[zed420]

Hi All

This query below works and avoids all the Overlaping BUT only for the first recored and thereafter it overlaps. Any thoughts please ???

Zed

$query = "SELECT COUNT(*) AS Cnt   
     FROM booking   
     WHERE request_date='$request_date'   
     AND e_time > '$s_time'   
     AND s_time < '$e_time'";  

[ignace]

SELECT COUNT(*) AS Cnt 

    FROM booking 

    WHERE request_date='$request_date' 

    AND e_time > '$s_time' 

    AND s_time < '$e_time'

GROUP BY Cnt

[zed420]

Thanks for your reply but I'm getting this msg,

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in C:\xampp\htdocs\calendar\booking.php on line 75

 

thanks

Zed

[ignace]

Thanks for your reply but I'm getting this msg,

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in C:\xampp\htdocs\calendar\booking.php on line 75

 

thanks

Zed

 

Try the query using a db interface like phpmyadmin or some other interface

[zed420]

Error
SQL query:  

SELECT COUNT( * ) AS Cnt
FROM booking
WHERE request_date = '$request_date'
AND e_time > '$s_time'
AND s_time < '$e_time'
GROUP BY Cnt
LIMIT 0 , 30 

MySQL said:  

#1056 - Can't group on 'Cnt' 

[ignace]

Error
SQL query:  

SELECT COUNT( * ) AS Cnt
FROM booking
WHERE request_date = '$request_date'
AND e_time > '$s_time'
AND s_time < '$e_time'
GROUP BY Cnt
LIMIT 0 , 30 

MySQL said:  

#1056 - Can't group on 'Cnt' 

 

Try GROUP BY count(*)

[zed420]

Thanks for your reply but I'm no joy.  :'( :'( :'(

[ignace]

SELECT DISTINCT COUNT( * ) AS Cnt

FROM booking

WHERE request_date = '$request_date'

AND e_time > '$s_time'

AND s_time < '$e_time'

LIMIT 0 , 30

[zed420]

Thanks for your reply but Unsuccessfull again. This is the background of it, A typical day's diary starts from 0800 till 2100, normally you would book an hr but just to test the script I booked 0800 to 2100 so that means all day has been booked NO other booking can be taken for this day if I DO NOT select the varibles 8 & 21 IT WILL book again and again . ????? why why????? How can I avoid that, s_time and e_time are numbers in database, this is the query I'm using

Thanks Zed

$query = "SELECT b_id, COUNT(*) AS Cnt 
2.FROM booking 
3.WHERE request_date='$request_date' 
4.AND e_time > '$s_time' 
5.AND s_time < '$e_time' 
6.GROUP BY b_id"; 
7.    $result = mysql_query($query); 
8.    $row = mysql_fetch_assoc($result); 
9.    if($row['Cnt'] > 0){ 
10.    error_message('Sorry, this time is already booked. Please choose another'); 
11.            } else {