分組在大數據，而指數

Question

我有這有很多列 我想通過對1列做組獲得的唯一的記錄 是具有約6億盧比

即時通訊使用的查詢數據的計數表作爲

select distinct lower(TITLE) , count(lower(TITLE)) as CountOf 
from table_name2 
where 
((LENGTH(lower(TITLE)) - LENGTH(replace(lower(TITLE), ' ', '')))+1) > 3 
HAVING COUNT(lower(TITLE))>1 
group by lower(TITLE) 

我怎樣才能做到這一點的一個有效的方式，例如，如果標題是「岩石花園區」，這是目前在TITLE場4次，然後我得到了countof - > 4

Answer 1

你可以試試這個：

select 
lower(TITLE) , 
count(lower(TITLE)) as CountOf 
from table_name2 
where 
REGEXP_COUNT ('asdaasd ', '\s')+1 > 3 
HAVING COUNT(TITLE)>1 
group by TITLE 

Answer 2

這應該做的伎倆：

select TITLE , count(TITLE) as CountOf 
from (
    select LOWER(title) title 
    from table_name2) t 
where TITLE like '% % % %' 
group by TITLE 
HAVING COUNT(TITLE)>1