From 18a0842b30c34529688b93bae5e887fddc8b4d9b Mon Sep 17 00:00:00 2001
From: Lee <lee@mtftm.com>
Date: Tue, 8 Oct 2024 10:46:35 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8Dci=EF=BC=8C=E6=B7=BB=E5=8A=A0?=
 =?UTF-8?q?07?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .github/workflows/cf.yml |  3 +-
 docs/sql/06/xiugai.md    | 87 +++++++++++++++++++++++++++++++++++++++-
 docs/sql/07/1.md         |  4 ++
 docs/sql/07/index.md     |  5 +++
 4 files changed, 96 insertions(+), 3 deletions(-)
 create mode 100644 docs/sql/07/1.md
 create mode 100644 docs/sql/07/index.md

diff --git a/.github/workflows/cf.yml b/.github/workflows/cf.yml
index 7b050af..76a1e81 100644
--- a/.github/workflows/cf.yml
+++ b/.github/workflows/cf.yml
@@ -26,8 +26,7 @@ jobs:
 
       # 第四步：构建项目
       - name: 构建项目
-        run: pnpm run docs:build
-
+        run: pnpm dev
       # 第五步：安装 Wrangler
       - name: 安装 Wrangler
         run: pnpm add -g wrangler@3
diff --git a/docs/sql/06/xiugai.md b/docs/sql/06/xiugai.md
index cdf20b2..3c1ece4 100644
--- a/docs/sql/06/xiugai.md
+++ b/docs/sql/06/xiugai.md
@@ -2,6 +2,91 @@
 title: 修改表
 ---
 
+## 定义
+
+```sql
+alter table 表名
+```
+
+## 改名
+
+### 更改表名
+
+```sql
+exec sp_rename oldname,newname
+```
+
+### 更改列名
+
+```sql
+exec sp_rename 'BiaoMing.oldname',newname
+```
+
+## 添加/删除
+
+### 向表内添加一列Cellphone
+
+```sql
+alter table Cuetomer
+add Cellphone char(10)
+```
+
+### 删除Cuetomer表的Cellphone列
+
+```sql
+alter table Cuetomer
+drop column Cellphone
+```
+
+## 修改列
+
+### 修改列的数据类型
+
 ```sql
+alter table 表名
+alter column 表名 数据类型
+```
 
-```
\ No newline at end of file
+### 修改某列是否允许为空
+
+```sql
+alter table Cuetomer
+alter column Cellphone char(11) not null
+```
+
+### 向Cuetomer表的CuetomerName列添加一个名为c1的唯一键约束
+
+```sql
+alter table Cuetomer
+add constraint c1 unique(CuetomerName)
+```
+
+## 约束
+
+### 给表加一个唯一键约束
+
+```sql
+alter table Cuetomer
+add unique(CuetomerName)
+```
+
+### 向Cuetomer表的sex列添加一个名为df_sex的约束，要求默认值为they
+
+```sql
+alter table Cuetomer
+add constraint df_sex unique(sex) deflut 'they'
+```
+
+### 删除约束df_sex
+
+```sql
+alter table Cuetomer
+drop constraint df_sex
+```
+
+也可以写为
+
+```sql
+alter table Cuetomer
+drop df_sex
+```
diff --git a/docs/sql/07/1.md b/docs/sql/07/1.md
new file mode 100644
index 0000000..cfc27d9
--- /dev/null
+++ b/docs/sql/07/1.md
@@ -0,0 +1,4 @@
+---
+title: 添加记录
+---
+
diff --git a/docs/sql/07/index.md b/docs/sql/07/index.md
new file mode 100644
index 0000000..a9848bc
--- /dev/null
+++ b/docs/sql/07/index.md
@@ -0,0 +1,5 @@
+---
+title: 07.数据的输入与维护
+---
+
+电脑端在左侧-侧边栏查看文档，手机端点击左上角`菜单`
\ No newline at end of file