DSE 資訊及通訊科技：數據庫
Databases
12 題 MCQ（基礎 0 · 中等 12 · 高階 0），撳入去睇完整解說同上一題／下一題。未學過呢個課題？先睇 ICT 自學路徑單元 5。
- 中等ICT-DBAS-001
1. In a table, a record and a field are:
- 中等ICT-DBAS-002
2. A primary key must:
- 中等ICT-DBAS-003
3. A foreign key is:
- 中等ICT-DBAS-004
4. One borrower can have many loans, and each loan belongs to one borrower. How should this be stored?
- 中等ICT-DBAS-005
5. Why is a student name a weak primary key?
- 中等ICT-DBAS-006
6. Which statement is correct?
- 中等ICT-DBAS-007
7. In a query, a criterion is:
- 中等ICT-DBAS-008
8. A mark field accepts only values from 0 to 100. The true mark is 60, but the clerk types 70. What happens?
- 中等ICT-DBAS-009
9. Asking a clerk to type each mark twice is an example of:
- 中等ICT-DBAS-010
10. Referential integrity means:
- 中等ICT-DBAS-011
11. A birthday should be stored in a field of type:
- 中等ICT-DBAS-012
12. Which statement correctly separates validation and verification?