Database selected-阿里云

求助！！delete 删除分片表报错：no database selected！！！！！！！！

各位大佬，mycat2搭建好,创建分片表后delete 删除分片表报错：no database selected,查询、修改、新增都正常，就删除报错，是什么原因？建表语句如下：CREATE TABLE db1.orders(id BIGINT NOT NULL AUTO_INCREMENT,orde...

mysql 数据库中出现no database selected

是因为你没有选择新创建的表所在的数据库，no database selected 意思就是没有选择数据库。方法一：解决办法：在创建表之前使用use语句，格式：use database_name，这样就打开了数据库，就可以对数据库进行操作。方法二：在操作出现no database sel...

[帮助文档] Dataphin集成管道任务报错java.sql.SQLExceptionNodatabaseselected

问题描述Dataphin集成管道任务报错：“java.sql.SQLException: No database selected”是什么原因？问题原因任务节点的jdbcurl配置错误，url中存在空格字符，导致数据库信息未能正确识别到。解决方案检查并更正对应节点的JDBC URL，修改为正确的UR...

在使用mycat时，建表报错：No MyCAT Database selected ?报错

在使用mycat时，建表报错：No MyCAT Database selected

No Database Selected

初次使用MySQL，出现如下错误： MySql ERROR1046(3D000): No Database Selected 没有选择数据库！首先建立数据库，再在其中建立数据表： create database （databasename） use （database name）即可。

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更新时间 2024-04-11 10:11:14

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