如何使用PL/SQL读取数据库中的BLOB对象

type t_cur is REF cursor;

c_table t_cur;

type t_employee is table of employees%rowtype;

v_employees t_employee;

rows number := 50;

v_sql varchar2(300);

v_table varchar(50);

begin

v_table := 'employee_cp';

open c_table for

select * from employees; --sour

v_sql := 'insert /*+ APPEND*/ into ' || v_table ||

' (EMPLOYEE_ID,

FIRST_NAME,

LAST_NAME,

EMAIL,

PHONE_NUMBER,

HIRE_DATE,

JOB_ID,

SALARY,

COMMISSION_PCT,

MANAGER_ID,

DEPARTMENT_ID,

BIRTHDAY) values (:1, :2,:3,:4,:5,:6, :7, :8,:9,:10, :11,:12)';

loop

fetch c_table bulk collect

into v_employees limit rows; --分批

dbms_output.put_line(v_employees.count);

for i in 1 .. v_employees.count loop

execute immediate v_sql

using V_EMPLOYEES(i).EMPLOYEE_ID, V_EMPLOYEES(i).FIRST_NAME, V_EMPLOYEES(i).LAST_NAME, V_EMPLOYEES(i).EMAIL, V_EMPLOYEES(i).PHONE_NUMBER, V_EMPLOYEES(i).HIRE_DATE, V_EMPLOYEES(i).JOB_ID, V_EMPLOYEES(i).SALARY, V_EMPLOYEES(i).COMMISSION_PCT, V_EMPLOYEES(i).MANAGER_ID, V_EMPLOYEES(i).DEPARTMENT_ID, V_EMPLOYEES(i).BIRTHDAY;

end loop;

commit;

exit when c_table%notfound;

end loop;

close c_table;

end;