gaussdb=# CREATE SCHEMA hr;
CREATE SCHEMA
gaussdb=# SET CURRENT_SCHEMA = hr;
SET
gaussdb=# CREATE TABLE staffs 
(
  section_id NUMBER,
  first_name VARCHAR2,
  phone_number VARCHAR2, 
  salary NUMBER
  );
CREATE TABLE
gaussdb=# INSERT INTO staffs VALUES (30, 'mike', '13567829252', 5800);
INSERT 0 1
gaussdb=# INSERT INTO staffs VALUES (40, 'john', '17896354637', 4000);
INSERT 0 1
gaussdb=# DECLARE
    name          VARCHAR2(20);
    phone_number  VARCHAR2(20);
    salary        NUMBER(8,2);
    sqlstr        VARCHAR2(1024);

    TYPE app_ref_cur_type IS REF CURSOR;  --定义游标类型
    my_cur app_ref_cur_type;  --定义游标变量
    
BEGIN
    sqlstr := 'select first_name,phone_number,salary from hr.staffs
         where section_id = :1';
    OPEN my_cur FOR sqlstr USING '30';  --打开游标, using是可选的
    FETCH my_cur INTO name, phone_number, salary; --获取数据
    WHILE my_cur%FOUND LOOP
          dbe_output.print_line(name||'#'||phone_number||'#'||salary);
          FETCH my_cur INTO name, phone_number, salary;
    END LOOP;
    CLOSE my_cur;   --关闭游标
END;
/
mike#13567829252#5800.00
ANONYMOUS BLOCK EXECUTE