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oracle存储过程中return和exit区别概述及测试

时间：2020-10-11 01:03 编辑：来源：阅读：
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摘要：oracle存储过程中return和exit区别概述及测试

create or replace procedure Test5(o_cellphone in varchar2) is
v_cellphone cc_quiz_stat.cellphone %type;
v_name cc_quiz_stat %rowtype;
v_state cc_quiz_stat.state %type;
begin
declare
cursor cur_cc is
select * from cc_quiz_stat;
cursor cur_jc(v_n varchar2) is
select state from cc_quiz_stat;
begin
open cur_cc;
loop
fetch cur_cc
into v_name;
exit when cur_cc%notfound;
open cur_jc(o_cellphone);
loop
fetch cur_jc
into v_state;
exit when cur_jc %notfound;
if (o_cellphone = v_name.cellphone) then
return;
else
dbms_output.put_line('手机号' || v_name.cellphone || '省份' ||
v_state);
end if;
end loop;
close cur_jc;
end loop;
close cur_cc;
end;
end Test5;

执行结果手机号18900000000省份全国手机号18900000000省份南京手机号18900000000省份天津手机号18900000000省份上海手机号18900000000省份北京

[u]复制代码[/u] 代码如下:

create or replace procedure Test5(o_cellphone in varchar2) is
v_cellphone cc_quiz_stat.cellphone %type;
v_name cc_quiz_stat %rowtype;
v_state cc_quiz_stat.state %type;
begin
declare
cursor cur_cc is
select * from cc_quiz_stat;
cursor cur_jc(v_n varchar2) is
select state from cc_quiz_stat;
begin
open cur_cc;
loop
fetch cur_cc
into v_name;
exit when cur_cc%notfound;
open cur_jc(o_cellphone);
loop
fetch cur_jc
into v_state;
exit when cur_jc %notfound;
if (o_cellphone = v_name.cellphone) then
exit;
else
dbms_output.put_line('手机号' || v_name.cellphone || '省份' ||
v_state);
end if;
end loop;
close cur_jc;
end loop;
close cur_cc;
end;
end Test5;

执行结果手机号18900000000省份全国手机号18900000000省份南京手机号18900000000省份天津手机号18900000000省份上海手机号18900000000省份北京手机号18900000002省份全国手机号18900000002省份南京手机号18900000002省份天津手机号18900000002省份上海手机号18900000002省份北京手机号18900000003省份全国手机号18900000003省份南京手机号18900000003省份天津手机号18900000003省份上海手机号18900000003省份北京手机号18900000004省份全国手机号18900000004省份南京手机号18900000004省份天津手机号18900000004省份上海手机号18900000004省份北京 return 跳出整个循环，本循环后面的不再执行， exit 跳出本次循环，下次继续执行本次循环

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