|
示例：
create or replace procedure pro_test_exception(vid in varchar2) is
userName varchar2(30);
begin
select name into userName from t_user where id=vid;
dbms_output.put_line(userName);
exception
when no_data_found then
dbms_output.put_line('没有查到数据！');
when too_many_rows then
dbms_output.put_line('返回了多行数据！');
end pro_test_exception; |
原文：http://leafnode.blog.ccidnet.com/blog-htm-itemid-132826-do-showone-type-blog-uid-43034.html
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