例如我有數據在表中找到低於字符串與存儲在數據庫中的數據的顯示順序
TABEL順序
-----------------------------------------
id_order no_order order_date
-----------------------------------------
1 0000001 12-01-2013
2 0000002 15-01-2013
-----------------------------------------
TABEL item_order
--------------------------------------------------
id_item_order id_order order_name
--------------------------------------------------
1 2 Product 1
2 2 Product 2
3 2 Product 3
4 2 Product 4
--------------------------------------------------
然後我想要顯示來自數據庫的數據加入如下
--------------------------------------------------
id_item_order order_name no_order
--------------------------------------------------
1 Product 1 0000002 A
2 Product 2 0000002 B
3 Product 3 0000002 C
4 Product 4 0000002 D
--------------------------------------------------
如何根據與item_order與id_order按照表格順序關聯的數據量顯示位於no_order後面的字符「A - n」?
請幫幫我。謝謝
你用什麼RDBMS ? – valex
@valex:Oracle,你能幫我嗎 – ramadani
'A'..'D'代表什麼? –