init

Author: LukaHuang

ex_1.md

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+# Question
+
+
+## ex_01
+
+寫出可以得到下方結果的 SQL 語句
+
+Answer
+```sql
+/* SOME SQL STATEMENT  */
+```
+
+Output
+```
++-----------+-----------+-----------+
+| lastname  | firstname | jobtitle  |
++-----------+-----------+-----------+
+| Jennings  | Leslie    | Sales Rep |
+| Thompson  | Leslie    | Sales Rep |
+| Firrelli  | Julie     | Sales Rep |
+| Patterson | Steve     | Sales Rep |
+| Tseng     | Foon Yue  | Sales Rep |
+| Vanauf    | George    | Sales Rep |
+| Bondur    | Loui      | Sales Rep |
+| Hernandez | Gerard    | Sales Rep |
+| Castillo  | Pamela    | Sales Rep |
+| Bott      | Larry     | Sales Rep |
+| Jones     | Barry     | Sales Rep |
+| Fixter    | Andy      | Sales Rep |
+| Marsh     | Peter     | Sales Rep |
+| King      | Tom       | Sales Rep |
+| Nishi     | Mami      | Sales Rep |
+| Kato      | Yoshimi   | Sales Rep |
+| Gerard    | Martin    | Sales Rep |
++-----------+-----------+-----------+
+17 rows in set (0.00 sec)
+```

ex_2.md

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+# Exercise 2
+
+## ex_1
+
+寫出可以得到下方結果的 SQL 語句
+
+Answer
+
+```sql
+/* SOME SQL STATEMENT  */
+```
+
+Output
+
+```
++-----------+--------+--------------+-----------+
+| member_id | member | committee_id | committee |
++-----------+--------+--------------+-----------+
+|         1 | John   |            1 | John      |
+|         3 | Mary   |            2 | Mary      |
+|         5 | Amelia |            3 | Amelia    |
++-----------+--------+--------------+-----------+
+3 rows in set (0.00 sec)
+```
+
+## ex_2
+
+寫出可以得到下方結果的 SQL 語句
+
+Answer
+
+```sql
+/* SOME SQL STATEMENT  */
+```
+
+Output
+
+```
++-----------+--------+--------------+-----------+
+| member_id | member | committee_id | committee |
++-----------+--------+--------------+-----------+
+|         1 | John   |            1 | John      |
+|         2 | Jane   |         NULL | NULL      |
+|         3 | Mary   |            2 | Mary      |
+|         4 | David  |         NULL | NULL      |
+|         5 | Amelia |            3 | Amelia    |
++-----------+--------+--------------+-----------+
+5 rows in set (0.00 sec)
+```
+
+## ex_3
+
+寫出可以得到下方結果的 SQL 語句
+
+Answer
+
+```sql
+/* SOME SQL STATEMENT  */
+```
+
+Output
+
+```
++-----------+--------+--------------+-----------+
+| member_id | member | committee_id | committee |
++-----------+--------+--------------+-----------+
+|         2 | Jane   |         NULL | NULL      |
+|         4 | David  |         NULL | NULL      |
++-----------+--------+--------------+-----------+
+2 rows in set (0.00 sec)
+```
+
+## ex_4
+
+寫出可以得到下方結果的 SQL 語句
+
+Answer
+
+```sql
+/* SOME SQL STATEMENT  */
+```
+
+Output
+
+```
++-----------+--------+--------------+-----------+
+| member_id | member | committee_id | committee |
++-----------+--------+--------------+-----------+
+|         1 | John   |            1 | John      |
+|         3 | Mary   |            2 | Mary      |
+|         5 | Amelia |            3 | Amelia    |
+|      NULL | NULL   |            4 | Joe       |
++-----------+--------+--------------+-----------+
+4 rows in set (0.00 sec)
+```
+
+## ex_5
+
+寫出可以得到下方結果的 SQL 語句
+
+Answer
+
+```sql
+/* SOME SQL STATEMENT  */
+```
+
+Output
+
+```
++-----------+--------+--------------+-----------+
+| member_id | member | committee_id | committee |
++-----------+--------+--------------+-----------+
+|      NULL | NULL   |            4 | Joe       |
++-----------+--------+--------------+-----------+
+1 row in set (0.00 sec)
+```