Question

我正在尝试从表中获取记录总数并使用以下MySQL查询：

SELECT COUNT(*) AS cnt FROM `info` WHERE 1 GROUP BY FROM_UNIXTIME(signup_date, '%Y-%m-%d') ORDER BY signup_date DESC

但是导致以下错误：

SQL错误（1055）：ORDER BY子句的表达式＃1不在GROUP BY子句中，并且包含非聚合列'rentown.info.signup_date' 它在功能上不依赖于GROUP BY子句中的列; 这与sql_mode = only_full_group_by不兼容。[SELECT COUNT（） AS cnt FROM info WHERE 1 GROUP BY FROM_UNIXTIME（signup_date， '％Y-％m-％d'）ORDER BY signup_date DESC]

这是我的表格格式：

+ Options
    id  email   signup_date     ip  city_name   firstname   address     state   lastname    city    zipcode     phonenumber     current_url     creditscore
    4   kfct@yahoo.com  1388525440  108.200.78.136  Philadelphia, PA    Kathy   1915 Apex Ave #1/4  California  Yeung   Los Angeles     90039   310 890 3338    NULL    NULL
    10  mlh@gmail.com   1388884727  98.199.141.66   Dickinson, TX   Mackenzie   102 strand  Texas   Helms   Galveston   77550   409 599 8024    NULL    NULL
    11  mjma@yahoo.com  1388889053  99.190.210.155  Grand Prairie, TX   samathiis   1701 towne crossing blvd #731   Texas   ashley  mansfield   76063   817 210     NULL    NULL

Answer 1

错误消息非常明显。您只能按GROUP BY子句中出现的列或聚合排序。要快速修复，只需按分组时使用的相同术语排序。

SELECT COUNT(*) AS cnt
FROM `info`
GROUP BY FROM_UNIXTIME(signup_date, '%Y-%m-%d')
ORDER BY FROM_UNIXTIME(signup_date, '%Y-%m-%d') DESC

Answer 2

对于总记录数，这应该足够了：

SELECT COUNT (*) AS cnt
FROM 'info'
ORDER BY signup_date DESC

MySQL错误“ORDER BY子句的表达式＃1不在GROUP BY子句中”

2 个答案: