作者查詢 / streetbad
作者 streetbad 在 PTT [ Database ] 看板的留言(推文), 共110則
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1F→: 反向思考 WHERE num = 7-5 7跟5用變數替換01/11 11:59
2F→: switch用變數 搭配 if 每次執行時的switch預設是最後一06/27 09:14
3F→: 筆type06/27 09:14
4F推: 推樓上 拆字或是加減乘除等等之類的運算建議前端先處理06/06 16:59
1F→: SELECT 'A' as t_name,id,category FROM A WHERE index05/16 15:14
2F→: = @str UNION SELECT 'B' as t_name,id,category FROM05/16 15:14
3F→: B WHERE index = @str UNION .....05/16 15:14
4F→: 可以同時撈出表名做成列表 如果要排序最後+order就好05/16 15:15
1F→: 改變現有排序? 還是只是撈出來想要有順序的顯示?05/15 14:44
2F→: 另外 以後塞新資料要按照projno排序應該無法05/15 14:44
3F推: 排程定時調整權限05/10 14:39
4F推: 再自己建一個對應的table呢?04/20 09:48
3F→: 為什麼會覺得沒有......?04/27 15:38
3F→: 查詢結果要的是!? 不要出現已有群組的會員!?04/17 14:23
6F推: select t1.* from t104/18 11:36
7F→: left outer join t2 on t2.ano = t1.ano04/18 11:36
8F→: where t2.ano is null04/18 11:36
9F→: 找出不存在於t2的t1會員編號與其資料 不確定是否04/18 11:37
10F→: 符合你的需求04/18 11:37
3F推: 推!04/05 11:25