为什么 rlwrap 会因冗余输出而使屏幕变得混乱？
我在linux下使用rlwrap实用程序在使用sql * plus时进行命令行编辑。一切都很好，只是该实用程序会回显我从键盘输入的每个命令。例如，假设我在提示中输入此语句：
SQL> select last_name from employees
相同的语句将在终端中再次回显，使输出看起来像：
SQL> select last_name from employees
select last_name from employees
然后当我完成下一行的 select 语句时，输出将如下所示：
SQL> select last_name from employees
select last_name from employees
2 where department_id = 100;
where department_id = 100;
问题是，对于较大的查询，这种冗余会使终端混乱，使查询难以阅读，因此任何抑制不必要输出的建议将不胜感激。
Possible Duplicate:
Why rlwrap echos “redundantly” what I type from the keyboard ??
I am using the rlwrap utility under linux for command line editing while using sql*plus. Everything is fine except that the utility echoes every command I enter from the keyboard. For example suppose that I typed this statement in the prompt:
SQL> select last_name from employees
the same statement would be echoed again in the terminal making the output looks like:
SQL> select last_name from employees
select last_name from employees
then when I complete the select statement on the next line, the output would look like:
SQL> select last_name from employees
select last_name from employees
2 where department_id = 100;
where department_id = 100;
The problem is, with larger queries, this redundancy will clutter the terminal making the query hard to read, so any suggestions to suppress the unnecessary output would be really appreciated.
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我会使用 SQLPlus 的 SPOOL 指令 来保存输出，而不是 rlwap到一个文件。根据复杂性，可能需要先编写查询/查询脚本以归档...
不知道这是一个重复的问题 - 复制/粘贴到原始文件。
Rather than rlwap, I'd use SQLPlus' SPOOL directive to save output to a file. Depending on the complexity, might want to script the query/queries to file first...
Didn't know this was a dupe question - copy/pasted to original.