把發問者的程式做了一點修改 #!/usr/bin/env python # -*- coding: utf-8 -*- n = int(input (&quo...
https://docs.microsoft.com/zh-tw/sql/tools/sql-server-profiler/view-and-analyze-...
create table Employee( EmpID varchar(2) ,EmpName nvarchar(50) ,Sex nvarchar(1)...
https://docs.microsoft.com/zh-tw/sql/relational-databases/triggers/logon-trigger...
#!/usr/bin/env python3 # -*- coding: utf-8 -*- import csv co_id = [111,222,333]...
https://docs.microsoft.com/zh-tw/windows-server/administration/windows-commands/...
你原本的查詢變成子查詢,以下是隨手寫的,不見得是正確的,你參考看看 select keyword, cnt, rank() over(order by cnt...
MySQL 有一個 replace 指令,也可以參考 chan15大大建議的INSERT ... ON DUPLICATE KEY UPDATE https:/...
使用PG13 create table it0915a ( id int generated always as identity primary key...
一級屠豬士的鐵人檔案