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我有兩個表在我的數據庫假設如何編寫連接兩個表的查詢並獲取sql中的數據?
OLD_TABLE
id name type
322 , shubham, 0
NEW_TABLE
id member_id
322 , 5
322 , 7
,所以我必須讓這樣的事情
select c.id, cm.member_id,
case when existes cm.member_id = 5 as new_table
from old_table c left join
new_table cm
on c.id = cm.id
where c.type = 0
order by c.id desc
limit 200
的可能的複製[如何從多個表的SQL查詢返回的數據(HTTPS:/ /stackoverflow.com/questions/12475850/how-can-an-sql-query-return-data-from-multiple-tables) –