如何增加 dbms_output 缓冲区?

How to increase dbms_output buffer?(如何增加 dbms_output 缓冲区?)

问题描述

我尝试通过 dbms_output 调试我的动态查询，但对于 dbms_output 缓冲区来说，查询字符串似乎太长了.

I tried to debug my dynamic query via dbms_output but seems like the query string is too long for dbms_output buffer.

我得到了:

ORA-06502: PL/SQL: numeric or value error: character string buffer too small
ORA-06512: at "SYS.DBMS_OUTPUT", line 148
ORA-06512: at line 1 

知道如何增加缓冲区大小吗?

Any idea how to increase the buffer size ?

推荐答案

您可以启用 DBMS_OUTPUT 并设置缓冲区大小.缓冲区大小可以在 1 到 1,000,000 之间.

You can Enable DBMS_OUTPUT and set the buffer size. The buffer size can be between 1 and 1,000,000.

dbms_output.enable(buffer_size IN INTEGER DEFAULT 20000);
exec dbms_output.enable(1000000);

检查这个

Check this

编辑

根据 Frank 和 Mat 发表的评论，您也可以使用 Null 启用它

As per the comment posted by Frank and Mat, you can also enable it with Null

exec dbms_output.enable(NULL);

buffer_size :缓存信息量的上限，以字节为单位.将 buffer_size 设置为 NULL 指定不应有限制.最大大小为 1,000,000，当用户指定 buffer_size (NOT NULL) 时，最小为 2,000.

buffer_size : Upper limit, in bytes, the amount of buffered information. Setting buffer_size to NULL specifies that there should be no limit. The maximum size is 1,000,000, and the minimum is 2,000 when the user specifies buffer_size (NOT NULL).

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