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PL/SQL 問題發問
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小弟最近在練習PL/SQL的基礎寫法,目前遇到一題問題始終解不出來,想請教各位版大!!
可否幫忙解答一下(三小題),謝謝。

E/R Diagram--

http://imageshack.us/photo/my-images/202/96009508.png/

a. Write a simple PL/SQL program ,and using Cursor(s), output data from the PRODUCT_LINE and
PRODUCT tables.If no data is available make-up your own data.
b. Write another PL/SQL program that will output data from the VENDOR,SUPPLIES, and RAW_MATERIAL
tables.

Suddenly the PVFC company announces that due to restructuring the following changes need to be made:

1.A PRODUCT can now be part of many PRODUCT_LINEs
2.To save money the PVFC company has entered into an agreement with one specific VENDOR
( you may pick any one vendor ), and supplies will be bought from that one vendor only.

C. How will these business changes affect code already written? The modified PL/SQL code ( after the restructuring)


搜尋相關Tags的文章: [ PL/SQL ] , [ Oracl ] ,
本篇文章發表於2013-01-28 23:35
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