53 lines
1.9 KiB
SQL
53 lines
1.9 KiB
SQL
-- 直播间点赞功能数据库表
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-- 执行命令: mysql -u root -p zhibo < live_room_like_tables.sql
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USE zhibo;
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-- 1. 创建直播间点赞记录表
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CREATE TABLE IF NOT EXISTS eb_live_room_like (
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id INT PRIMARY KEY AUTO_INCREMENT COMMENT '主键ID',
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room_id INT NOT NULL COMMENT '直播间ID',
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user_id INT NOT NULL COMMENT '用户ID',
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user_nickname VARCHAR(50) COMMENT '用户昵称',
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like_count INT DEFAULT 1 COMMENT '点赞次数（该用户对该直播间的累计点赞）',
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last_like_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '最后点赞时间',
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create_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间',
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update_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间',
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INDEX idx_room_id (room_id),
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INDEX idx_user_id (user_id),
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UNIQUE INDEX idx_user_room (user_id, room_id)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='直播间点赞记录表';
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-- 2. 为直播间表添加点赞数字段
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ALTER TABLE eb_live_room
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ADD COLUMN IF NOT EXISTS like_count INT DEFAULT 0 COMMENT '总点赞数' AFTER view_count;
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-- 3. 创建索引以提升查询性能
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ALTER TABLE eb_live_room_like
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ADD INDEX IF NOT EXISTS idx_last_like_time (last_like_time);
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-- 4. 初始化现有直播间的点赞数为0
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UPDATE eb_live_room SET like_count = 0 WHERE like_count IS NULL;
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-- 5. 查看表结构
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DESC eb_live_room_like;
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DESC eb_live_room;
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-- 6. 插入测试数据（可选）
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-- INSERT INTO eb_live_room_like (room_id, user_id, user_nickname, like_count)
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-- VALUES (8, 43, 'xiaofeng', 10);
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-- 7. 验证数据
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SELECT
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'直播间点赞记录表' as table_name,
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COUNT(*) as record_count
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FROM eb_live_room_like
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UNION ALL
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SELECT
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'直播间表（有点赞数）' as table_name,
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COUNT(*) as record_count
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FROM eb_live_room
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WHERE like_count IS NOT NULL;
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SELECT '数据库表创建完成！' as status;
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