我不会一次性获取 300 万行。无论您使用什么客户端，机器都会阻止您获取所有行。相反，您应该批量获取行。
I wouldn't fetch 3 million rows in one go. It doesn't matter what client you use - the machine will be what's preventing you from getting all the rows. Instead, you should fetch the rows in batches.
有一些 GUI 工具。
http://www.databasejournal.com/ features/mysql/slideshows/top-10-mysql-gui-tools.html
但就像其他人所说，您必须以较小的部分获取数据。
There are some GUI tools out there.
http://www.databasejournal.com/features/mysql/slideshows/top-10-mysql-gui-tools.html
But like others said, you have to fetch the data in smaller parts.
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我不会一次性获取 300 万行。无论您使用什么客户端，机器都会阻止您获取所有行。相反，您应该批量获取行。
I wouldn't fetch 3 million rows in one go. It doesn't matter what client you use - the machine will be what's preventing you from getting all the rows. Instead, you should fetch the rows in batches.
有一些 GUI 工具。
http://www.databasejournal.com/ features/mysql/slideshows/top-10-mysql-gui-tools.html
但就像其他人所说，您必须以较小的部分获取数据。
There are some GUI tools out there.
http://www.databasejournal.com/features/mysql/slideshows/top-10-mysql-gui-tools.html
But like others said, you have to fetch the data in smaller parts.