MYSQL-计算每个表中的行数 [英] MYSQL - count number of rows in each table

问题描述

我想知道数据库中每个表中有多少行.我已经做到了

I would like to know how many rows are in each table in my database. I've come so far as to having

select count(*) _tablename_; 

但是，我将需要在每张桌子上这样做-而且有很多.我如何用表名及其行数打印输出的最佳方法是什么?

However i would need to do that on each and every table - and there are a lot. What would me the best way to get a print-out with the table name and it's row count?

推荐答案

SELECT table_name, table_rows
    FROM INFORMATION_SCHEMA.TABLES
    WHERE TABLE_SCHEMA = '<your db>';

我也希望您意识到查询中存在错误:它缺少FROM.

I also hope you realise there's an error in your query: it's missing a FROM.

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