問題詳情
三、當資料庫管理系統允許交易（Transactions）同步（Concurrent）執行，但資料庫管理系統卻沒有進行任何同步控制（Concurrent Control）的情形下：
⑴請舉例說明三個可能發生的 Concurrency 問題。（9 分）
⑴請舉例說明三個可能發生的 Concurrency 問題。（9 分）
參考答案
答案：A
難度：非常簡單0.986519
統計：A(1244),B(8),C(1),D(8),E(0)
內容推薦
- 14 (A)To begin with (B)From now on (C)Up to now (D)Until then
- 22 According to this passage, in which area could chimps mostly likely outperform humans?(A)In s
- ⑶請寫出 SQL 語句，可從上述資料庫中，找出所有曾經被派遣去支援部門（部門代號：0066）工作的員工之編號及姓名，但其從不曾被派遣去支援另一部門（部門代號：0033）的工作。（6 分）
- ⑶找出所有演過超過 10 種類型電影的男演員。
- 請依下文回答第 32 題至第 36 題 To the Wappo Indians who first inhabited the valley, “Napa” meant a land of ple
- 13 (A)balances (B)alleviates (C)broadens (D)associates
- 二、若 指 數 分 配 其 參 數 為 λ ， 當 檢 定 H0 λ = λ 0 vs. Ha：λ > λ0 ， 導 出 概 似 比 檢 定： （likelihood ratio test），並
- 29 Which of the following statements indicates the characteristic of Native American life-writin
- 31 Which of the following contrasts best describes Native American life-writing as it was histor
- 請依下文回答第 12 題至第 15 題 You do not have to be a neuroscientist to see how the emotional brain can badly
內容推薦
- 15 (A)if only (B)even when (C)so that (D)only because
- 四、圖四放大器之電晶體以直流電源 I 偏壓，其他部分偏壓電路業經省略。電路元件與電晶體小訊號參數：RB = 10 kΩ, RC = 20 kΩ, Rsig = 0.5 kΩ, RL = 10 kΩ,
- ⑷找出同時屬於動作與恐怖類，但是沒有戰爭這個關鍵字的電影名稱。
- 24 Which of the following descriptions about chimpanzees is NOT true?(A)Chimps remember the posi
- 16 The shortsighted effort to protect against every attempt by the government to enter an individual
- ⑸找出有演出過被評為最爛電影，但是沒有演出過被評為最佳電影的男女演員。
- 七、請寫出 Tamoxifen 與 Raloxifene 之構造與臨床用途，並解釋為何其同樣作用於雌性接受體（estrogen receptor）卻有不同之藥理作用？（15 分）
- 請依下文回答第 25 題至第 27 題 As California psychologist Wendy Mogel points out in The Blessing of a Skinned
- 二、假設某一企業的關聯資料庫（Relational Database）中有三個表格（Table）：員工 Table E（E_num, E_name, E_age）（欄位依序代表員工編號、員工姓名、
- 五、閱讀測驗(14%): Do you feel anxious in a yellowroom? Does the color blue make you feel calm and rel
- 33 Who was the first that turned growing grapes into a business in Napa Valley?(A)George Crane (
- 35 Based on this passage, when is the prime time of the wine industry in Napa Valley?(A)Before 1
- ⑵何謂 Locking 機制？為何可避免上述⑴三個可能發生的問題，請分別說明之？（6 分）
- ⑶上述 Locking 機制可能會造成 Transactions 發生 Deadlock。請說明何謂 Two-phaseLocking Protocol？（5 分）
- 38 (A)When we make new changes, we step outside our comfort zone.(B)This is where creativity and
- Based on the practice of chromotherapy in ancient China and Egypt, patients suffering from s
- ⑵請問何謂功能相依（Functional Dependency）？（5 分）
- ⑷請問如何處理關聯綱目 R，使它符合第（n+1）正規化型式（須詳述原因）。（8 分）
- 36 According to the passage, which of the following statements is true?(A)The wine business of N
- What can we infer from the article?(A) Younger people have better memory.(B) A catchy phrase
- 一、如圖一所示電路為由一 CS（共源）放大器串接一 CG（共閘）放大器所構成的疊接（Cascode）放大器，其偏壓電路略去未繪。設各電晶體具相同特性，其 gm = 1 mA/V，ro→∞；又 Rsig
- 三、英文作文：（20 分） Write an English essay in NO MORE THAN 250 words on the following topic:Do you agree o
- This article is most likely found in_____ .(A) a literary journal(B) a travel guidebook(C) a
- [Afriend loves at all times, and a brother is born foradversity.]---Proverbs 17:17 Alot of people go
- Success belongs to the d t students, not to the lazy ones.