数据库技术实验报告

网站编辑2023-06-05 14:03:32219

以下是一个简单的 MySQL 数据库技术实验报告:

``` # 创建数据库 # 在 Windows 上创建用户账户 mydatabase.user_data = "CREATE TABLE user_data (" /> mydatabase.password = "%Y-%m-%d" (%Word), mydatabase.username = "John", mydatabase.password = "Sir", mydatabase.database_name = "MyDesktop" )

# 创建表 mydata.tables = ["username" | "password", "database_name" | "table_name"]

# 查询数据 myquery.query = "SELECT * FROM mydatabase.tableSET username, password, COUNT(1) FROM mydatabase.user_table WHERE COUNT(1) >= 10"

# 编辑数据 mydata.edit_data = "SELECT * FROM mydatabase"

# 删除数据 mydatabase.delete_data()

# 运行程序 if (mydatabase.sql == "SELECT * FROM mydatabase") then # 查询所有数据 myquery.query = "SELECT * FROM mydatabase.tableSET username, password, COUNT(1) FROM mydatabase.user_table WHERE COUNT(1) >= 10" # 查询所有表 myquery.query = "SELECT * FROM mydatabase.tableSET myname, password, COUNT(1) FROM mydatabase.user_table WHERE COUNT(1) >= 10" # 删除数据 myquery.exit()

# 运行程序 if (mydatabase.sql == "SELECT * FROM mydatabase") then # 查询所有数据 myquery.query = "SELECT * FROM mydatabase.tableSET myname, password, COUNT(1) FROM mydatabase.user_table WHERE COUNT(1) >= 10" # 查询表中所有数据 myquery.query = "SELECT * FROM mydatabase WHERE name = 'John'" (mydatabase.username, mydatabase.password, mydatabase.database_name) # 查询表中所有行 myquery.query = "SELECT * FROM mydatabase WHERE myname = 'Sir'" (mydatabase.username, mydatabase.password, mydatabase.database_name) # 查询表中所有记录 myquery.query = "SELECT * FROM " (mydatabase.username, mydatabase.password, mydatabase.database_name) # 查询数据 myquery.query = "SELECT * FROM MyDesktop WHERE username = 'John'" (mydataba