Oracle PL/SQL UTL_FILE.PUT 缓冲

2021-12-24 00:00:00 oracle put plsql fflush utl-file

我正在从 Oracle 存储过程中写入一个大于 7MB 的大文件,并且要求在每条记录的末尾没有行终止字符(没有回车/换行).

I'm writing a large file > 7MB from an Oracle stored procedure and the requirements are to have no line termination characters (no carriage return/line feed) at the end of each record.

我已经使用 UTL_FILE.PUT 编写了一个存储过程,并且我正在使用 UTL_FILE.FFLUSH 跟踪对 UTL_FILE.PUT 的每次调用.尽管我正在进行 FFLUSH 调用,但一旦我达到写入超过缓冲区大小(设置为最大 32767)的程度,此过程就会出现写入错误.如果我用 PUT_LINE 调用替换 PUT 调用,该过程工作正常.

I've written a stored procedure using UTL_FILE.PUT and I'm following each call to UTL_FILE.PUT with a UTL_FILE.FFLUSH. This procedure errors with a write error once I get to the point where I've written more than the buffer size (set to max 32767) although I'm making the FFLUSH calls. The procedure works fine if I replace the PUT calls with PUT_LINE calls.

如果没有换行符,是否不能写入超过缓冲区大小的内容?如果是这样,是否有解决办法?

Is it not possible to write more than the buffer size without a newline character? If so, is there a work around?

推荐答案

已删除文档中的引用,请参阅 Ollie 的回答

另一种可能的方法是使用 Java 存储过程,您可以在其中使用功能更全面的 Java API 来创建和写入文件.

Another possible way to do this is a Java stored procedure, where you can use the more full-featured Java API for creating and writing to files.

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