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My MySQL table "crashed" after updating column types. I changed VARCHAR to INT and added some new columns too.

After that, when I'd like to view the table entries, every software just keeps loading and crashing... I can't even make any queries to the table. All I can do is look at the list of columns of the table. (I've tried with PhpMyAdmin, HeidiSQL and MySQL Workbench). Changes are made with HeidiSQL.

What should I do? This is the first time this happens and I've been using HeidiSQL for a long time.

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您已更改VARCHAR为INT在表架构中。乍一看我们是对的，只是更改了alter column，mysql server 照常进行，没有显示任何错误但是当您更改表时，mysql server 必须做很多工作。首先临时存储记录并重新创建模式并插入记录。如果您的表有很多记录，那么很难更改。因此，要么截断表并更改架构并重新插入，要么创建其他表并稍后重命名。

在我看来，解决方案是根据需要创建表架构。

从表中将记录插入新表中。例如-insert into new_table (col1, col2) select col1, col2 from old_table;

放下旧桌子 drop table old_table

用旧表重命名新表 rename new_table to old_table

于 2015-07-31T00:40:42.693 回答