Question

$query = mysql_query(SELECT * FROM test WHERE SUBSTRING(date,0,4)="1392") //for example 1392
echo query['name'];

i want to get 4 first character and check its equal with 1392 or not .
but its return 1054 my column name type is varchar and i have no idea about this.

Answer 1

MySQL count char from 1, not from 0 as php.
try

SUBSTRING(date,1,4)="1392"

or if you want the year

YEAR(date)="1392"

http://dev.mysql.com/doc/refman/5.5/en/string-functions.html#function_substring

EDIT test exemple

CREATE TABLE babak (name VARCHAR(20) NOT NULL, date VARCHAR(10) NOT NULL);
INSERT INTO babak SELECT 'test', '1391/11/11';
INSERT INTO babak SELECT 'correct', '1932/11/11';

SELECT * FROM babak WHERE YEAR(date) = 1932;
+---------+------------+
| name    | date       |
+---------+------------+
| correct | 1932/11/11 |
+---------+------------+

SELECT * FROM babak WHERE SUBSTRING(date, 1, 4) = 1932;
+---------+------------+
| name    | date       |
+---------+------------+
| correct | 1932/11/11 |
+---------+------------+