Question

尝试创建一个mysql查询，在其中计算过滤器数据库的名称。成功，从某个时期获得名字是主要目标。

$query = query("
SELECT count(CASE WHEN filter='冬越しする(現在地検索)' THEN 1 END) as filter, 
count(CASE WHEN filter='開花期で選ぶ' THEN 1 END) as filter2, 
count(CASE WHEN filter='日当たりで選ぶ' THEN 1 END) as filter3,  
count(CASE WHEN filter='株幅で選ぶ' THEN 1 END) as filter4,
count(CASE WHEN filter='背丈で選ぶ' THEN 1 END) as filter5, 
count(CASE WHEN filter='機能、タイプで選ぶ' THEN 1 END) as filter6,
count(CASE WHEN filter='ビギナーおすすめ' THEN 1 END) as filter7 FROM 
filter_clicked WHERE filter_date < DATEADD(day, -30, GETDATE())");

Answer 1

您必须使用now（）-now（）-间隔30天-您使用的是SQL Server函数

$query = query("
SELECT count(CASE WHEN filter='冬越しする(現在地検索)' THEN 1 END) as filter, 
count(CASE WHEN filter='開花期で選ぶ' THEN 1 END) as filter2, 
count(CASE WHEN filter='日当たりで選ぶ' THEN 1 END) as filter3,  
count(CASE WHEN filter='株幅で選ぶ' THEN 1 END) as filter4,
count(CASE WHEN filter='背丈で選ぶ' THEN 1 END) as filter5, 
count(CASE WHEN filter='機能、タイプで選ぶ' THEN 1 END) as filter6,
count(CASE WHEN filter='ビギナーおすすめ' THEN 1 END) as filter7 FROM 
filter_clicked WHERE filter_date < date(now())-interval 30 day")

MySQL查询计数某些值

1 个答案: