在使用nacos 2.2.3版本时，将默认的MySQL数据库改为了postgresql数据库。遇到了一个问题，在查询某个配置文件的历史版本时（这个配置文件确认有历史版本），分页查询报错，原因是sql格式后半部分是 select xxxxx limit 0,10 这样postgresql数据库不支持，...

文章 2022-12-05 来自：开发者社区

【数据库】解决 oracle: SQL 错误 [900] [42000]: ORA-00900: 无效 SQL 语句

正文早上在 dbeaver 上连接 oracle 数据库执行 sql 语句时出现如下报错：SQL 语句： SELECT count(*) FROM dates;报错信息： Error : 942, Position : 21, Sql = SELECT count(*) FROM dates, OriginalSql = SELECT count(*) FROM dates, Error Ms....

文章 2022-02-17 来自：开发者社区

Oracle数据库sql语句空字段筛选方法，sql语句值为空判断方法

通过 is null 或 is not null 可以来判断空字段。空字段筛选过程演示：select image_src, pk_group from sm_appmenuitem where image_src is null;非空字段筛选过程演示：select image_src, pk_group from sm_appmenuitem where image_....

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满足等保2.0二级和三级 “安全审计”合规要求的同时，智能解析数据库通信流量，细粒度审计数据库访问行为，通过对数据库全量行为的审计溯源、危险攻击的实时告警、风险语句的智能预警，提供数据库资产最安全的监控保障。

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