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DieselNiu
commented
Jan 29, 2021
DieselNiu
commented
Contributor
- 这个PR解答了当前仓库中的题目（机器人会自动判题并合并当前PR）
- 这个PR修复了当前仓库中的一些代码缺陷（机器人不会判题，而是由管理员来处理当前PR）
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hcsp-bot
reviewed
Jan 29, 2021
| import java.sql.Connection; | ||
| import java.sql.DriverManager; | ||
| import java.sql.SQLException; | ||
| import java.sql.*; |
Contributor
There was a problem hiding this comment.
不应使用 '.*' 形式的导入 - java.sql.* 。
| // +----+--------+------+ | ||
| public static List<GoodsAndGmv> getGoodsAndGmv(Connection databaseConnection) throws SQLException { | ||
| return null; | ||
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select goods.id as id,name,sum(goods_num*goods_price) as gmv from goods\n" + |
| public static List<GoodsAndGmv> getGoodsAndGmv(Connection databaseConnection) throws SQLException { | ||
| return null; | ||
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select goods.id as id,name,sum(goods_num*goods_price) as gmv from goods\n" + | ||
| "join `order`\n" + |
| return null; | ||
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select goods.id as id,name,sum(goods_num*goods_price) as gmv from goods\n" + | ||
| "join `order`\n" + | ||
| "on goods.id = `order`.goods_id\n" + |
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select goods.id as id,name,sum(goods_num*goods_price) as gmv from goods\n" + | ||
| "join `order`\n" + | ||
| "on goods.id = `order`.goods_id\n" + | ||
| "group by goods.id\n" + |
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select `order`.id,user.name,goods.name,goods_price * goods_num as total_price from `order`\n" + | ||
| "join goods\n" + | ||
| "on goods.id = `order`.goods_id\n" + | ||
| "join user\n" + |
| // +----------+-----------+------------+-------------+ | ||
| public static List<Order> getLeftJoinOrders(Connection databaseConnection) throws SQLException { | ||
| return null; | ||
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select `order`.id,user.name,goods.name,goods_price * goods_num as total_price from `order`\n" + |
| public static List<Order> getLeftJoinOrders(Connection databaseConnection) throws SQLException { | ||
| return null; | ||
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select `order`.id,user.name,goods.name,goods_price * goods_num as total_price from `order`\n" + | ||
| "left join goods\n" + |
| return null; | ||
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select `order`.id,user.name,goods.name,goods_price * goods_num as total_price from `order`\n" + | ||
| "left join goods\n" + | ||
| "on goods.id = `order`.goods_id\n" + |
| try (PreparedStatement preparedStatement = databaseConnection.prepareStatement("select `order`.id,user.name,goods.name,goods_price * goods_num as total_price from `order`\n" + | ||
| "left join goods\n" + | ||
| "on goods.id = `order`.goods_id\n" + | ||
| "left join user\n" + |
Contributor
|
你的提交 f7d68b1 ，似乎失败了：Your tests failed on CircleCI 😅 请不要气馁，仔细分析原因，再接再厉！ |
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