diff --git a/Script-2.sql b/Script-2.sql
new file mode 100644
index 0000000..6d0f18e
--- /dev/null
+++ b/Script-2.sql
@@ -0,0 +1,30 @@
+INSERT  INTO  teaching_sql_2 (student_id,person_id,student_birthday)
+Values("M11112030","A123456789","890808")
+
+INSERT  INTO  teaching_sql_2 (student_id,person_id,student_birthday) # 選擇好資料表及覽未明成
+Values("M11112029","C123456789","900801") #將參數按照順序放入
+
+
+UPDATE teaching_sql_2 SET student_birthday='890801'  # 將變動的資料設置好
+WHERE student_id='M11112030'; #尋找student id 為M11112030的參數
+
+DELETE FROM  teaching_sql_2  # 選擇要刪除的table表
+WHERE student_id='M11112029' #山處studen_id為M1112029
+
+select * FROM  teaching_sql_1 
+
+select student_name,student_id FROM  teaching_sql_1 
+
+select * FROM  teaching_sql_1 WHERE student_id='M11112030'
+
+select * FROM  teaching_sql_1 WHERE student_id='M11112030' AND student_class='EL125'
+
+
+select * FROM  teaching_sql_1 WHERE student_id='M11112030' or student_class='EL124'
+
+
+SELECT teaching_sql_1.student_id, # 找尋teaching_sql_1的 student_id
+teaching_sql_1.student_class,  # 找尋teaching_sql_1的 student_class
+teaching_sql_2.person_id    # 找尋teaching_sql_2的 person_id
+from teaching_sql_1 join teaching_sql_2  # 將teaching_sql_2加入 
+WHERE teaching_sql_1.student_id = teaching_sql_2.student_id  # 指定條件
\ No newline at end of file