"Number of statistical records after MySQL statistics group"

Source: Internet
Author: User

SELECT count(*) FROM 表名 WHERE 条件 // 这样查出来的是总记录条

SELECT count(*) FROM 表名 WHERE 条件 GROUP BY id  //这样统计的会是每组的记录条数.How do I get the total number of records for a second SQL statement? select count(*)  from (SELECT count(*) FROM 表名 WHERE 条件 GROUP BY id ) a ; SELECT count(*) FROM (SELECT COUNT(*) FROM `papa_stadium_goods_storage_record` WHERE `c_time`>=1474560000 and `c_time`<1476201600  group by `record_type`) a   其中:子查询方式,MySQL中子结果集必须使用别名,而Oracle中不需要特意加别名!

"Number of statistical records after MySQL statistics group"

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