:memo: 增加表格结构

documents/zh/api/course.md

@@ -1 +1,50 @@
-# API
+# Course课程
+
+## Table
+
+```
+CREATE TABLE course 
+( 
+    id SERIAL PRIMARY KEY, 
+    cover BYTEA, 
+    title VARCHAR(32) NOT NULL, 
+    subtitle VARCHAR(32),
+    summary VARCHAR(255),
+    teacher UUID NOT NULL, 
+    tag VARCHAR(255), 
+    lang VARCHAR (8), 
+    speech_lang VARCHAR (8), 
+    status INTEGER, 
+    lesson_num INTEGER, 
+    creator UUID NOT NULL, 
+    create_time INTEGER, 
+    update_time INTEGER, 
+    delete_time INTEGER , 
+    content TEXT
+)
+```
+
+```
+CREATE TABLE 'lesson' 
+( 
+    id SERIAL PRIMARY KEY, 
+    course_id INTEGER,
+    title VARCHAR(32) NOT NULL, 
+    subtitle VARCHAR(32), 
+    creator CHAR (36), 
+    tag VARCHAR(255), 
+    summary VARCHAR(255), 
+    status INTEGER, 
+    cover BYTEA, 
+    teacher UUID NOT NULL, 
+    lang VARCHAR (8), 
+    speech_lang VARCHAR (8), 
+    create_time INTEGER, 
+    modify_time INTEGER, 
+    receive_time INTEGER , 
+    'date' INTEGER, 
+    'duration' INTEGER, 
+    'content' TEXT
+)
+
+```