diff --git a/blog/php-mysql/index.md b/blog/php-mysql/index.md
index 21dda900333edc93e65f1c2cfa488a6e0f7c664c..34aa6cc261fb57a9d365a6f8071e9ede80fe8cfd 100644
--- a/blog/php-mysql/index.md
+++ b/blog/php-mysql/index.md
@@ -7,3 +7,5 @@
 [MySQL简介](blog/php-mysql/mysql-basic.md)
 
 [数据库基本操作](blog/php-mysql/sql-database.md)
+
+[数据表基本操作](blog/php-mysql/sql-table.md)
diff --git a/blog/php-mysql/sql-database.md b/blog/php-mysql/sql-database.md
index ca87e871302bce3e3d4a8dfe5546fff49739ce5d..4fe052ff82701cafebe4502420ec6ba6d0fccde5 100644
--- a/blog/php-mysql/sql-database.md
+++ b/blog/php-mysql/sql-database.md
@@ -46,5 +46,36 @@ show create database 数据库名;
 -- eg:
 show create database data;
 ```
-https://www.bilibili.com/video/BV1Vx411g7uJ?p=7&spm_id_from=pageDriver
 
+## 选择数据库
+
+```sql
+use 数据库;
+
+-- eg
+use mydatabase;
+```
+
+## 修改数据库
+
+```sql
+-- 修改数据库字符集 和校对集
+alter database 数据库名字 charset 字符集;
+
+-- eg:
+alter database mydatabase charset gbk;
+```
+
+修改数据库名字
+
+- version < 5.5 rename
+- version > 5.5 不可以修改
+
+## 删除数据库
+
+```sql
+drop database 数据库名字;
+
+-- eg:
+drop database mydatabase;
+```
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diff --git a/blog/php-mysql/sql-table.md b/blog/php-mysql/sql-table.md
new file mode 100644
index 0000000000000000000000000000000000000000..4684e92ce48d3a8d20d20b853d09439cbc2c718e
--- /dev/null
+++ b/blog/php-mysql/sql-table.md
@@ -0,0 +1,310 @@
+# 数据表操作
+
+## 创建数据表
+
+1、基本语法
+
+```sql
+create table 表名 (
+    字段名 字段类型 [字段属性],
+    字段名 字段类型 [字段属性],
+    ...
+) [表选项];
+```
+
+需要注意：表需要放在对应的数据库下面
+
+2、创建方式一
+
+```sql
+-- 先选择数据库
+use mydatabase;
+
+-- 创建数据表
+create table user(
+    name varchar(10)
+);
+```
+
+3、创建方式二
+
+```sql
+-- 直接将数据表挂到数据库下
+create table mydatabase.user(
+    name varchar(10)
+);
+```
+
+4、表选项
+
+- Engine 存储引擎 
+- Charset 字符集
+- Collate 校对集
+
+指定表的字符集
+
+```sql
+create table user(
+    name varchar(10)
+) charset utf8;
+```
+
+5、复制已有表结构
+
+```sql
+create table 表名 like 表名;
+
+-- eg 从test数据库复制表
+create table user like test.user;
+```
+
+## 显示数据表
+
+```sql
+-- 显示所有表
+mysql> show tables;
++----------------------+
+| Tables_in_mydatabase |
++----------------------+
+| t_author             |
+| user                 |
++----------------------+
+
+
+-- 显示匹配表
+mysql> show tables like '%author';
++--------------------------------+
+| Tables_in_mydatabase (%author) |
++--------------------------------+
+| t_author                       |
++--------------------------------+
+```
+
+## 显示表结构
+
+基本语法
+```sql
+desc 表名(常用);
+describe 表名;
+show columns from 表名;
+```
+
+示例
+
+```sql
+mysql> desc user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| name  | varchar(10) | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+1 row in set (0.00 sec)
+
+
+mysql> describe user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| name  | varchar(10) | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+1 row in set (0.01 sec)
+
+
+mysql> show columns from user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| name  | varchar(10) | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+1 row in set (0.01 sec)
+```
+
+字段含义
+
+```
+Field    字段名
+Type     字段类型
+Null     是否允许为空
+Key      索引
+Default  默认值
+Extra    额外的属性
+```
+
+## 显示表创建语句
+
+基本语法
+```sql
+show create table 表名;
+```
+
+示例
+```sql
+mysql> show create table user;
++-------+----------------+
+| Table | Create Table   |
++-------+----------------+
+| user  | CREATE TABLE `user` (
+  `name` varchar(10) COLLATE utf8mb4_general_ci DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci |
++-------+----------------+
+1 row in set (0.00 sec)
+```
+
+语句结束符
+
+- `;` `\g` 效果一样，字段在上，数据在下
+- `\G` 字段在左，数据在右
+
+```sql
+mysql> show create table user\G
+*************************** 1. row ***************************
+       Table: user
+Create Table: CREATE TABLE `user` (
+  `name` varchar(10) COLLATE utf8mb4_general_ci DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci
+1 row in set (0.00 sec)
+```
+
+
+
+
+## 设置表属性
+
+- engine
+- charset
+- collate
+
+```sql
+-- 基本语法
+alter table 表名 表选项 [=] 值;
+
+-- eg 修改表的字符集
+alter table user charset gbk;
+```
+
+如果数据表已经有数据，不要轻易修改表属性
+
+## 修改表结构
+
+1、修改表名
+
+```sql
+--基本语法
+rename table 旧表名 to 新表名;
+
+-- eg:
+rename table user to tb_user;
+```
+
+2、新增字段
+
+```sql
+-- 基本语法
+alter table 表名 add [column] 字段名 字段类型 [字段属性] [位置first/after 字段名];
+
+mysql> desc user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| name  | varchar(10) | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+
+-- 给学生表新增age字段,默认加到表的最后
+mysql> alter table tb_user add age int;
+
+mysql> desc tb_user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| name  | varchar(10) | YES  |     | NULL    |       |
+| age   | int(11)     | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+
+
+-- 在最前面增加一个id字段
+mysql> alter table tb_user add id int first;
+
+mysql> desc tb_user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| id    | int(11)     | YES  |     | NULL    |       |
+| name  | varchar(10) | YES  |     | NULL    |       |
+| age   | int(11)     | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+```
+
+字段位置
+```
+first          放在最前名
+alter 字段名    放在某个字段后面
+```
+
+3、修改字段名
+
+```sql
+-- 基本语法
+alter table 表名 change 旧字段名 新字段名 字段类型 [字段属性] [新位置]
+
+-- 将age字段修改为old
+mysql> alter table tb_user change age old int;
+
+mysql> desc tb_user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| id    | int(11)     | YES  |     | NULL    |       |
+| name  | varchar(10) | YES  |     | NULL    |       |
+| old   | int(11)     | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+
+```
+
+4、修改字段属性
+
+```sql
+-- 基本语法
+alter table 表名 modify 字段名 新字段类型 [新字段属性] [新位置]
+
+-- eg 将name的长度由10修改为20
+mysql> alter table tb_user modify name varchar(20);
+
+mysql> desc tb_user;
++-------+-------------+------+-----+---------+-------+
+| Field | Type        | Null | Key | Default | Extra |
++-------+-------------+------+-----+---------+-------+
+| id    | int(11)     | YES  |     | NULL    |       |
+| name  | varchar(20) | YES  |     | NULL    |       |
+| old   | int(11)     | YES  |     | NULL    |       |
++-------+-------------+------+-----+---------+-------+
+```
+
+5、删除字段
+
+```sql
+-- 基本语法
+alter table 表名 drop 字段名
+
+-- eg 删除old字段
+alter table tb_user drop old;
+```
+
+## 删除表结构
+
+```sql
+-- 基本语法, 可以同时删除多个表
+drop table 表名 [, 表名...];
+
+-- eg: 删除 tb_user表
+mysql> drop table tb_user;
+
+mysql> show tables;
++----------------------+
+| Tables_in_mydatabase |
++----------------------+
+| t_author             |
++----------------------+
+```
+
+
+https://www.bilibili.com/video/BV1Vx411g7uJ?p=11&spm_id_from=pageDriver
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