number

data/1.MySQL初阶/4.数据类型/1.数值类型/config.json

@@ -2,7 +2,9 @@
   "node_id": "mysql-1418d1a710ab4e7c8cacb0bad047179e",
   "keywords": [],
   "children": [],
-  "export": [],
+  "export": [
+    "number.json"
+  ],
   "keywords_must": [],
   "keywords_forbid": [],
   "group": 0

data/1.MySQL初阶/4.数据类型/1.数值类型/number.json

+{
+  "type": "code_options",
+  "author": "ccat",
+  "source": "number.md",
+  "notebook_enable": false,
+  "exercise_id": "39244600680e40848e6ab8af71f22cf1"
+}
\ No newline at end of file

data/1.MySQL初阶/4.数据类型/1.数值类型/numbers.md

+# 数值的隐式类型转换
+
+Joe 需要使用下列表做一项数值计算
+
+```mysql
+create table data(
+    id int primary key auto_increment,
+    x int,
+    y int
+);
+```
+
+计算查询为：
+
+```mysql
+select id, (x^2 + y^2)/2 as result from points;
+```
+
+得到的结果集中，result 列的类型应该是：
+
+## 答案
+
+decimal
+
+## 选项
+
+### A
+
+float
+
+### B
+
+double
+
+### C
+
+int
+
+### D
+
+long
+
+### E
+
+byte
\ No newline at end of file

data/1.MySQL初阶/4.数据类型/2.日期和时间类型/node.txt

+9.2
\ No newline at end of file