5

由于截止日期的压力,我可能会忽略一些东西。但这种行为让我很吃惊。看起来游标缓存了 100 行,并且 continue 语句刷新缓存并从新缓存提取的第一条记录开始。

我将其缩小到以下脚本:

drop table test1;

create table test1 (test1_id NUMBER);

begin
  for i in 1..300
  loop
    insert into test1 values (i);
  end loop;
end;
/

declare
  cursor c_test1 is
  select *
  from test1;
begin
  for c in c_test1
  loop
     if mod(c.test1_id,10) = 0
     then
      dbms_output.put_line(c_test1%ROWCOUNT||' '||c.test1_id||' Continue');
      continue;
     end if;
     dbms_output.put_line(c_test1%ROWCOUNT||' '||c.test1_id||' Process');
  end loop;
end;
/

1 1 Process
2 2 Process
3 3 Process
4 4 Process
5 5 Process
6 6 Process
7 7 Process
8 8 Process
9 9 Process
10 10 Continue **Where are tes1_id's 11 to 100?** 
11 101 Process
12 102 Process
13 103 Process
14 104 Process
15 105 Process
16 106 Process
17 107 Process
18 108 Process
19 109 Process
20 110 Continue **Where are tes1_id's 111 to 200?** 
21 201 Process
22 202 Process
23 203 Process
24 204 Process
25 205 Process
26 206 Process
27 207 Process
28 208 Process
29 209 Process
30 210 Continue **Where are tes1_id's 211 to 300?** 


Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
PL/SQL Release 11.1.0.7.0 - Production
redhat release 5
2 node RAC
4

1 回答 1

6

这是一个错误:7306422

Pawel Barut 写道: http://pbarut.blogspot.com/2009/04/caution-for-loop-and-continue-in-oracle.html

解决方法:SQL> ALTER SESSION SET PLSQL_OPTIMIZE_LEVEL = 1;

问候, 罗伯

于 2009-06-09T09:01:55.607 回答