SELECT ym,vendor,SUBSTRING_INDEX(GROUP_CONCAT(product),",",2) FROM (...
check select * from ( select rank() over(partition by vendor,trunc(ex...
CREATE TABLE tab ( exdate date , vendor char(2) , product Nvarchar(20) );...
create table it220208 ( js json ); insert into it220208 values ('[{"Date...
如果只是為了登入管理, 可以只指派 Identify 授權給管理員, 讓他能夠登入主控台就好 (預設可以有 110 個免費登入帳號); 但是不要指派 Works...