select query cannot execute in cursor

hi
i am using backend as mysql server . In that i am using stored procedure and cursor but her my select query cannot execute for last record in table .here attach my code
i have table in three record when execute the procedure only two record execute

SELECT tech_type INTO check_type1  FROM vendor_tech  WHERE tech_type ='CORE' AND v_id=current_vendor_id;
  SELECT tech_type INTO check_type2  FROM vendor_tech  WHERE tech_type ='FRONTEND' AND v_id=current_vendor_id;
SELECT tech_type INTO check_type3  FROM vendor_tech  WHERE tech_type ='FRONTEND' AND v_id=current_vendor_id;

when i remove INTO check_type1, INTO check_type2 , INTO check_type3 this option execute all record please give me a solution to solve this

gowthaman8870226416