mysql5.7版本云解析DNS字符串的相关内容

文章 2023-12-23 来自：开发者社区

【SQL编程】MySQL 5.7.28 版本使用 SQL 直接解析 JSON 字符串（判断是否是合法JSON类型+文本深度+文本长度+值类型+keys获取+值获取+不同深度数据获取）

1. 版本说明SELECT @@version; -- 5.6.35-log 不支持 JSON 解析相关函数 -- 5.7.28 支持2. 测试代码准备阶段建表CREATE TABLE `tb_test_json` ( `id` varchar(64) NOT NULL COMMENT '主键', `json_str` varchar(255) DEFAULT NULL COMMENT ...

文章 2017-11-23 来自：开发者社区

解决mysql5.7及以下版本无法解析json字符串的问题

#把key->value（json字符串）拼成sql语句 DELIMITER // DROP FUNCTION kvJsonData// CREATE FUNCTION kvJsonData(tableName char(20),medKeys text,medValues text,orderId int(11)) returns text BEGIN declare num int...

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更新时间 2024-02-25 11:00:32

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