plsql存储不能调用，调用了没有任何反应

Question

create or replace procedure add_jobs(p_job_id in hr.jobs.job_id%type,
p_job_title in hr.jobs.job_title%type,
p_min_salary in hr.jobs.min_salary%type)is
v_max_salary hr.jobs.max_salary%type;

begin
v_max_salary:=2 * p_min_salary;
insert into hr.jobs
(job_id,job_title,min_salary,max_salary)
values
(p_job_id,p_job_title,p_min_salary,v_max_salary);
dbms_output.put_line('added the following row into the jobs table...');
dbms_output.put_line(p_job_id || ' ' || p_job_title || ' ' || p_min_salary || ' ' || v_max_salary);
end add_jobs;
在procedure窗口写了如上一个存储过程，然后在失去了 Window里面调用：execute add_jobs('SY_ANAL', 'system analyst', 6000);为什么没有调用起呢？没有任何反应，任何我在procedure窗口里面编译存储过程时报错了 insert into hr.jobs这一句有问题。初学oracle，跪求大神指点

Answer 1

https://www.baidu.com/link?url=o8OsCMItdqbAo2Lk88vReB9AFds0jUrHwpCF-BZor8w_8X-BDzLuC3uSHjePAT3qei_fqglvfyBnkwx_FshKUq&wd=&eqid=ceaf3fbb0000b9ef0000000558d14230