pass a string of greek character in mysql stored procedure?
<pre><code>insertStudentData:function(school_id,studentData,callback){


var _pass_student=Math.random().toString(36).substr(2, 8);
var _pass_father=Math.random().toString(36).substr(2, 8);
var _pass_mother=Math.random().toString(36).substr(2, 8);


    var data = [
        { tag: '_father_pass', value : _pass_father },
        { tag: '_mother_pass', value : _pass_mother },
       { tag: '_student_pass', value :_pass_student }];
            enc_data.getpass(8, data, function(result){

        query= 'call addStudentBulk("'+studentData[12]+'",'+studentData[15]+','+studentData[16]+',"'+studentData[1]+'","'+studentData[3]+'","'+studentData[2]+'","'+studentData[7]+'","'                            +studentData[4]+'","'+studentData[6]+'","'+studentData[13]+'","'+studentData[8]+'","'+studentData[14]+'","'+studentData[10]+'","'+studentData[11]+'","'+studentData[5]+'","'+studentData[9]+'","'+_pass_student+'","'+_pass_father+'","'+_pass_mother+'","'+result[2]['value']+'","'+result[0]['value']+'","'+result[1]['value']+'",'+school_id+')';

 dataAccess.getObject(query,function(status){

        if(status!='err')
        {
            console.log(studentData[12]+' '+studentData[1]+' done');
                      callback({err:false,data:null});

        }
       else
        {
            console.log(studentData[12]+' '+studentData[1]+ ' err');
    callback({err:true,data:studentData[12]+' '+studentData[1]+ ' err'});
        }
                                });
</code></pre>

<p>});
},</p>

<p>I have table with column name varchar(50).  I can easily set greek characters in insert query like this:</p>

<pre><code>insert into student set name='ΧΡΙΣΤΟΣ ΑΒΕΡΚΙΟΥ';
</code></pre>

<p>But when I pass this greek character string to mysql stored procedure through in parameters it gives me this error:</p>

<pre><code>call new_procedure('ΧΡΙΣΤΟΣ ΑΒΕΡΚΙΟΥ');

Error Code: 1366. Incorrect string value: '\xCE\xA7\xCE\xA1\xCE\x99...' for 
column 'name_' 
</code></pre>

<p>Here is my body of procedure:</p>

<pre><code>CREATE DEFINER=`root`@`localhost` PROCEDURE `new_procedure`(in name_ varchar(45) )

 BEGIN
 INSERT INTO `student` (`student_name`) VALUES (name_);
 END
</code></pre>

<p>How can I do that? Please help me.
Edit</p>

<p>I have already set the table to utf8;
I am importing data from excel sheet in NodeJs. excel sheet contains greek characters and i want to store them as it is.here is picture of table structure
<a href="https://i.stack.imgur.com/JP7BB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/JP7BB.png" alt="table structure"></a></p>