Sqlite update command is not working

When i try to update a table its giving me a

error message : near "(": syntax error

Please anybody suggest me to rectify this issue.

I am updating a table when i click the save button (Bar button item) on the tool bar which is placed below.

The problem is it's always going to else statement of qlite3_step. I am not getting whats the exact problem for this issue and the above mentioned error.

Any suggestions would be appreciated.

Following is my update method :

-(BOOL)updateFilesTableInDB:(NSDictionary*)dictionaryObject
{
NSLog(@"dictionaryObject %@",dictionaryObject);

NSString *str = [dictionaryObject valueForKey:@"documentType"];
NSString *str1 = [dictionaryObject valueForKey:@"orderNumber"];
NSNumber *num = [dictionaryObject valueForKey:@"filesTableRowID"];

NSLog(@"str %@",str);
NSLog(@"str1 %@",str1);
NSLog(@"num %@",num);

if ([databaseManager didExistDatabaseInDocumentDirectory] == YES)
{
    const char *dbpath = [[databaseManager getDatabasePathFromDocument] UTF8String];

    sqlite3_stmt *stmt;
    if (sqlite3_open(dbpath, &scanningDB) == SQLITE_OK)
    {
        const char *update_stmt1 = "UPDATE FILES SET (documentType,orderNumber) VALUES (?,?) WHERE ID = ?";
        sqlite3_prepare_v2(scanningDB, update_stmt1, -1, &stmt, NULL);

        sqlite3_bind_text(stmt, 1, [str UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_text(stmt, 2, [str1 UTF8String], -1, SQLITE_TRANSIENT);
        sqlite3_bind_int(stmt, 3,[num intValue]);

        if(sqlite3_step(stmt)==SQLITE_DONE)
        {
            sqlite3_reset(stmt);
            NSLog(@"Record Updated Successfully");

        }
        else
        {
            NSLog(@"Could not Update Record");
            NSLog(@" error message %s",sqlite3_errmsg(scanningDB));
            sqlite3_finalize(stmt);
            sqlite3_close(scanningDB);
            return NO;
        }
        sqlite3_finalize(stmt);
        sqlite3_close(scanningDB);

    }
    else
        return NO;
}
else
    return NO;

return YES;

}