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## 基礎SQL語法 ## 基礎SQL語法
### 建議打開資料庫一起操作 ### 建議打開資料庫一起操作
### 新增資料 ### 新增資料
``` ``` sql
INSERT INTO teaching_sql_2 (student_id,person_id,student_birthday) # 選擇好資料表及覽未明成 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 Values("M11112029","C123456789","900801") #將參數按照順序放入
``` ```
### 更新資料 ### 更新資料
``` ```sql
UPDATE teaching_sql_2 SET student_birthday='890801' # 將變動的資料設置好 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 WHERE student_id='M11112030'; #尋找student_id 為 M11112030 的參數
``` ```
### 刪除資料 ### 刪除資料
``` ```sql
DELETE FROM teaching_sql_2 # 選擇要刪除的table表 DELETE FROM teaching_sql_2 # 選擇要刪除的table表
WHERE student_id='M11112029' #刪除studen_id為M1112029 WHERE student_id='M11112029' #刪除studen_id為M1112029
``` ```
### 搜尋資料(最需要花時間學的地方，常常會遇到需要串接多個table的時候) ### 搜尋資料(最需要花時間學的地方，常常會遇到需要串接多個table的時候)
#### 所有資料 #### 所有資料
``` ```sql
select * FROM teaching_sql_1 select * FROM teaching_sql_1
``` ```
@ -78,7 +78,7 @@ select * FROM teaching_sql_1
| M11112029| 林大偉 | EL124 | | M11112029| 林大偉 | EL124 |
#### 指定欄位 #### 指定欄位
``` ```sql
select student_name FROM teaching_sql_1 select student_name FROM teaching_sql_1
``` ```
|student_name | |student_name |
@ -89,7 +89,7 @@ select student_name FROM teaching_sql_1
#### 多個指定欄位 #### 多個指定欄位
``` ```sql
select student_name,student_id FROM teaching_sql_1 select student_name,student_id FROM teaching_sql_1
``` ```
@ -102,7 +102,7 @@ select student_name,student_id FROM teaching_sql_1
#### 查詢符合條件式的資料 #### 查詢符合條件式的資料
``` ```sql
select * FROM teaching_sql_1 WHERE student_id='M11112030' select * FROM teaching_sql_1 WHERE student_id='M11112030'
``` ```
| student_id | student_name | student_class | | student_id | student_name | student_class |
@ -110,7 +110,7 @@ select * FROM teaching_sql_1 WHERE student_id='M11112030'
|M11112030| 張威勝| EL125| |M11112030| 張威勝| EL125|
#### 查詢符合條件式的資料(and) #### 查詢符合條件式的資料(and)
``` ```sql
select * FROM teaching_sql_1 WHERE student_id='M11112030' AND student_class='EL125' # 尋找同時符合 student_id='M11112030' 及 student_class='EL125'的資料 select * FROM teaching_sql_1 WHERE student_id='M11112030' AND student_class='EL125' # 尋找同時符合 student_id='M11112030' 及 student_class='EL125'的資料
``` ```
| student_id | student_name | student_class | | student_id | student_name | student_class |
@ -119,7 +119,7 @@ select * FROM teaching_sql_1 WHERE student_id='M11112030' AND student_class='EL
#### 查詢符合條件式的資料(or) #### 查詢符合條件式的資料(or)
``` ```sql
select * FROM teaching_sql_1 WHERE student_id='M11112030' or student_class='EL124' # 尋找只要符合 student_id='M11112030' 或 student_class='EL124'的資料 select * FROM teaching_sql_1 WHERE student_id='M11112030' or student_class='EL124' # 尋找只要符合 student_id='M11112030' 或 student_class='EL124'的資料
``` ```
| student_id | student_name | student_class | | student_id | student_name | student_class |
@ -128,7 +128,7 @@ select * FROM teaching_sql_1 WHERE student_id='M11112030' or student_class='EL1
|M11112029|林大偉|EL124| |M11112029|林大偉|EL124|
#### 串接2個資料表 #### 串接2個資料表
``` ```sql
SELECT teaching_sql_1.student_id, # 找尋teaching_sql_1的 student_id 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_1.student_class, # 找尋teaching_sql_1的 student_class
teaching_sql_2.person_id # 找尋teaching_sql_2的 person_id teaching_sql_2.person_id # 找尋teaching_sql_2的 person_id