seems like this question has been answered alot, but I can't get it to work!
Have a 'Month' column in DB table, that reaches 313 as max entry.
Am trying to assign this max amount to a PHP value which is working but keeps returning $maxmonth as 99?
Current Coding:
$result=mysqli_query($con,"SELECT MAX(Month) AS max from $ulliabforecast");
{while ( $row = $result->fetch_assoc() )
$maxmonth=$row['max'];}
Appreciate any help.
似乎您的Month
是VARCHAR
,您需要执行CAST
使其正常工作。
SELECT MAX(CAST(Month AS SIGNED)) AS max1 from $ulliabforecast
Try
SELECT `month` FROM $ulliabforecast ORDER BY `month` DESC LIMIT 0,1
As your sql query, this should select the largest month column from your database.
You might be using Month column as a VARCHAR
type, change it to INT
and your problem will be solved.
Have a good day.
You can be using month
as VARCHAR
. Please Check.
And if true you can convert it to UNSIGNED
and then get Max
out of it
Please try below SQL
Statement
SELECT MAX(CAST(`month` AS UNSIGNED)) AS max FROM $ulliabforecast
Note
As described in Cast Functions and Operators :
The type for the result can be one of the following values:
BINARY[(N)]
CHAR[(N)]
DATE
DATETIME
DECIMAL[(M[,D])]
SIGNED [INTEGER]
TIME
UNSIGNED [INTEGER]
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