Oracle的Spool命令
使用Oracle spool命令实行将sql*plus中的输出的结果复制到一个指定的文件中，或者把查询的结果发送到打印机中，直接使用spool of
使用Oracle spool命令实行将sql*plus中的输出的结果复制到一个指定的文件中，或者把查询的结果发送到打印机中，直接使用spool off命令为止。
spool命令的语法如下：
spool [file_name [create|replace|append] off|out]
其中file_name指定一个操作系统文件
create将创建一个指定的file_name文件
replace如果指定的文件已经存在，则替换该文件
append将内容附加到一个已经存在的文件中
off停止将sql*plus中的输出结果复制到file_name文件中，并关闭该文件。
out启动该功能，将sql*plus中的输出结构复制到file_name中。
实例如下：
在我的电脑e盘中不存在query.sql文件
在sql*plus中如下的操作
在我的端脑e盘中找到query.sql文件，代开该文件，文件的内容如下：
该文件不仅记录的你查询的结果的信息，同时也记录了你的查询的语句。
本文永久更新链接地址：
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