ORA-04091: 表 发生了变化, 触发器/函数不能读它

触发器中新调用了一个存储过程.

触发器:

create or replace trigger tr_credits_wzclorder_clwzjk
    after update on app_wzclorder for each row
declare
    ...
begin
    ...
    p_integral_ticket_refund(:new.ordernumber,:new.userid);
    ...
end;

存储过程:

create or replace procedure p_integral_ticket_refund(in_ordernumber varchar2,
                                                     in_userid      varchar2) is
    ...
begin
    ...
    select count(*) into v_count4 from app_wzclorder where ordernumber = in_ordernumber;
    ...
exception
    when others then
        begin
            ...
        end;
end p_integral_ticket_refund;

报异常:ora-04091: 表 appuser.app_wzclorder 发生了变化, 触发器/函数不能读它

改存储过程:

create or replace procedure p_integral_ticket_refund(in_ordernumber varchar2,
                                                     in_userid      varchar2) is
    ...
PRAGMA AUTONOMOUS_TRANSACTION; -- 自治事务开始
begin
    ...
    select count(*) into v_count4 from app_wzclorder where ordernumber = in_ordernumber;
    ...
COMMIT; -- 自治事务结束
exception
    when others then
        begin
            ...
        end;
end p_integral_ticket_refund;