How to echo latest mysql row and some previous column? [closed] - php

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I am new in php. I have a problem. I want to fetch data from Mysql db and print it on my PHP page. I want to print latest record and some previous data of selected column. For example i have a two tables
table1( id, student_name )
table2: ( id, student_id, English, Math, Physics......., Total Marks, Obtain Marks and grade)
PROBLEM: I want that i can fetch whole new record but i want that i can also fetch previous grade of the student.
Can it is possible? How i Can do it?

Answer 1

With
SELECT * FROM (
SELECT * FROM table2 WHERE (student_id=2) ORDER BY id DESC LIMIT 2
) sub
ORDER BY id ASC
You should be able to select the two last rows.
Edit syntax formatting:
$result = mysql_query($sql);
$rows = mysql_fetch_assoc($result);
echo $rows[0]["grade"]; // new grade
echo $rows[1]["grade"]; // previous grade

Answer 2

You can try with the following:
$query = SELECT t1.*,t2.* FROM table1 as t1
LEFT JOIN table2 as t2 ON t1.id = t2.student_id
where t1.id = '1' ORDER BY t2.student_id desc LIMIT 2
$result = mysql_query($query);
$fetch_record = mysql_fetch_assoc($result);
$grade = $fetch_record[0]['pass-your-column-name'];