mysql操作语句大全

连接mysql详情见https://blog.csdn.net/csdjia11/article/details/12057818

1. 输入：mysql -uroot -p123456 即可登录MySQL，如果出现command not found: mysql，就再执行一下 source /etc/profile 让设置立即生效后再尝试

2. 数据库相关

# 查询数据库
SHOW DATABASES;
# 创建数据库
CREATE DATABASE sqlCodeTestDb;
# 删除数据库
drop database willDeleteDb;
# 选择数据库
use sqlCodeTestDb;

3. 表相关

CREATE TABLE `item_order_0` (
  `id`            BIGINT(20) UNSIGNED NOT NULL COMMENT '主键',
  `user_id`       BIGINT(20) UNSIGNED NOT NULL COMMENT '用户id',
  `shop_id`       BIGINT(20) UNSIGNED NOT NULL COMMENT '店家id',
  `order_no`      VARCHAR(50) NOT NULL COMMENT '幂等支付订单号',
  `order_amount`  BIGINT(20) UNSIGNED NOT NULL COMMENT '订单金额（单位:分）',
  `status`        TINYINT(3) NOT NULL DEFAULT 1 COMMENT '状态 1初始化 2支付失败 3支付成功 4已发货 5已签收',
  `item_id`       VARCHAR(50) NOT NULL DEFAULT '0' COMMENT '商品id',
  `create_time`   BIGINT(20) UNSIGNED NOT NULL COMMENT '创建时间',
  `update_time`   BIGINT(20) UNSIGNED NOT NULL COMMENT '更新时间',
  `data`          JSON       COMMENT 'data 收货地址、快递单号等',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uniq_idx_order_no`(`order_no`),
  KEY `idx_uid` (`user_id`),
  KEY `idx_status_time` (`status`,`update_time`),
  KEY `idx_uid_create_time` (`user_id`,`create_time`)
) ENGINE = InnoDB
  DEFAULT CHARSET = utf8mb4
  COLLATE = utf8mb4_unicode_ci COMMENT ='购买商品订单表';

# 列出所有表
SHOW FULL TABLES;

4. 插入数据

INSERT INTO `sqlcodetestdb`.`item_order_0` (`id`, `user_id`, `shop_id`, `order_no`, `order_amount`, `status`, `item_id`, `create_time`, `update_time`, `data`) VALUES (1, 31415926, 1, 'ORDER_31415926_1', 100, 1, 'SKU2022', 1675872000000, 1675872000000, '{\"recipient\": \"张三\", \"mobile\": \"15243322885\", \"address\": {\"province\": \"北京市\", \"city\": \"北京市\", \"district\": \"通州区\", \"town\": \"台湖镇\", \"address\": \"北小营路次渠嘉园\"}, \"payPlatform\": \"WEIXIN\", \"hasAddressInfo\": true}');
INSERT INTO `sqlcodetestdb`.`item_order_0` (`id`, `user_id`, `shop_id`, `order_no`, `order_amount`, `status`, `item_id`, `create_time`, `update_time`, `data`) VALUES (2, 31415926, 1, 'ORDER_31415926_2', 200, 2, 'SKU2023', 1675872000000, 1675872000000, '{\"recipient\": \"李四\", \"mobile\": \"15243322885\", \"address\": {\"province\": \"北京市\", \"city\": \"北京市\", \"district\": \"昌平区\", \"town\": \"延寿镇\", \"address\": \"黑山寨村\"}, \"payPlatform\": \"WEIXIN\", \"hasAddressInfo\": true}');
INSERT INTO `sqlcodetestdb`.`item_order_0` (`id`, `user_id`, `shop_id`, `order_no`, `order_amount`, `status`, `item_id`, `create_time`, `update_time`, `data`) VALUES (3, 31415926, 1, 'ORDER_31415926_3', 300, 3, 'SKU2024', 1675872000000, 1675872000000, '{\"recipient\": \"王五\", \"mobile\": \"15243322885\", \"address\": {\"province\": \"浙江省\", \"city\": \"杭州市\", \"district\": \"余杭区\", \"town\": \"余杭街道\", \"address\": \"金沙公寓小区\"}, \"payPlatform\": \"WEIXIN\", \"hasAddressInfo\": true}');
INSERT INTO `sqlcodetestdb`.`item_order_0` (`id`, `user_id`, `shop_id`, `order_no`, `order_amount`, `status`, `item_id`, `create_time`, `update_time`, `data`) VALUES (4, 31415926, 1, 'ORDER_31415926_4', 400, 4, 'SKU2025', 1675872000000, 1675872000000, '{\"recipient\": \"赵六\", \"mobile\": \"15243322885\", \"address\": {\"province\": \"陕西省\", \"city\": \"西安市\", \"district\": \"雁塔区\", \"town\": \"小寨路街道\", \"address\": \"雁塔西路76号\"}, \"payPlatform\": \"WEIXIN\", \"hasAddressInfo\": true}');

5. 查询

SELECT id, concat(data->>'$.address.province', 
    data->>'$.address.city', 
    data->>'$.address.district', 
    data->>'$.address.town', 
    data->>'$.address.address') AS fullAddress FROM item_order_0;

SELECT id, concat(data->'$.address.province', 
    data->'$.address.city', 
    data->'$.address.district', 
    data->'$.address.town', 
    data->'$.address.address') AS fullAddress FROM item_order_0;

更新

UPDATE item_order_0 SET data=json_replace(data,'$.address.province', '南京市') where id = 1;
UPDATE item_order_0 SET data=json_set(data,'$.address.fullAddress', '南京市') where id = 1;

更多json操作见：https://www.cnblogs.com/feng-gamer/articles/10576190.html

根据表中某几个字段更新同一张表中另一个字段

UPDATE item_order_0 table1
INNER JOIN (
    SELECT concat(data->>'$.address.province', 
    data->>'$.address.city', 
    data->>'$.address.district', 
    data->>'$.address.town', 
    data->>'$.address.address') AS fullAddress, id FROM item_order_0 WHERE data->>'$.hasAddressInfo' = 'true'
    ) table2 
  ON table1.id = table2.id 
    SET table1.data = json_set(table1.data,'$.address.fullAddress', table2.fullAddress)
    WHERE data->>'$.hasAddressInfo' = 'true'