增加新文件

7ab36687 · 王晓庆 · 7ab36687
--- a/testdb.sql
+++ b/testdb.sql
+CREATE DATABASE wxq
+USE wxq
+-- # 创建测试表 persons，包含字段：ID、name、salesrep
+IF OBJECT_ID('persons', 'U') IS NOT NULL
+  DROP TABLE persons
+CREATE TABLE persons (
+  id INT NOT NULL,
+  name varchar(100),
+  salesrep varchar(100),
+  PRIMARY KEY(id)
+)
+-- # 插入三条测试数据
+INSERT INTO persons VALUES ('1', 'John Smith', 'John Doe')
+INSERT INTO persons VALUES ('2', 'Jane Doe', 'Joe Dog')
+INSERT INTO persons VALUES ('3', 'Mike T.', 'Sarah H.')
+SELECT * FROM persons WHERE salesrep='Joe Dog'