Python MYSQLdb文档缺少详细信息？ [英] Python MYSQLdb documentation missing details?

问题描述

我想了解 MySQLdb 文档。我只是想知道有没有从那里缺少的东西。例如，我试图看看rowcount（常数）实际上是什么，但是在文档中没有看到它。

I am trying to make sense of MySQLdb documentation. I was just wondering if there are things missing from there. For example, I am trying to see what "rowcount" (a constant) actually does, but am not seeing it anywhere in the documentation.

文档不完整

感谢。

推荐答案

Python数据库模块的主要文档来源是 DB-API 2.0规范：

The primary source of documentation for Python database modules is the DB-API 2.0 specification:

.rowcount 

       This read-only attribute specifies the number of rows that
        the last .execute*() produced (for DQL statements like
        'select') or affected (for DML statements like 'update' or
        'insert').

       The attribute is -1 in case no .execute*() has been
        performed on the cursor or the rowcount of the last
        operation is cannot be determined by the interface. [7]

       Note: Future versions of the DB API specification could
        redefine the latter case to have the object return None
        instead of -1.

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