DB update Error

Question

Hi
I tried to update a document but keep getting this error " java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Syntax error in
UPDATE statement." I checked my update statements for any missing " or ' but everything seem ok.Anyone know what will be the likely reason behind this?? Thanks in advance
DocMgr mgr = new DocMgr();
int modDoc = mgr.modDoc("2","John","test","300803","file.txt","3","this is a test");
[DocMgr.java]
public int modDoc(String docNo , String name , String title , String date , String path , String docType,String comment)
          System.out.println("entering modDoc");
          try{
               long res = db.UpdateSQL(doc.updateDocument(docNo , name , title , date , path ,docType ,comment));
               System.out.println("Change rs value is"+""+res);
               return (int)(res);     
          }catch(Exception e){System.out.println(e);}
          return -1;
[Document.java]
doc = new Documents();
public String updateDocument(String docNo , String name , String title , String date , String path , String docType ,String comment)
String updateString= " UPDATE Document SET "+ "Name= '"+name+"', "+ "Title= '"+title+"', Date = '"+date+"', Path= '" +path+"' , DocumentType= '"+docType+"' , Comment='"+comment+"' WHERE DocNo ='" + docNo + "'";
return updateString;

Answer 1

DanishHussain is correct replace ' with '' (1 singe quote with 2 single quotes).
UPDATE Document SET Name= 'something with'<-this is a sinle quote and would case an error' ...
should be:
UPDATE Document SET Name= 'something with''<-this are 2 sinle quotes and would not case an error' ...
Not only could not replacing ' with '' cause an error it leaves your database open for SQL insertion (someone hacking onto your database)
http://www.sensepost.com/misc/SQLinsertion.htm
... , Title= '', Date = '', Path= '' , DocumentType= '' , Comment='' WHERE DocNo =''
The values DocumentType (if the DB is well formed and it's a foreighn key) and docNo should be numerical values so leave out the '' here.