我遵循了https://stackoverflow.com/a/48056403/9621172和其他一些帖子中的说明,现在不知何故我无法登录MySQL。我见过一些与帖子相关的文章(无法登录到MySQL,无法登录到MySQL),但我不能按照那里的说明来做。使用以下命令sudo mysql -u ubuntumysq
我想知道a.*,c.name,...a.access等意味着。换句话说,当我在点的前面加上一个字母和点的函数时,我到底指的是什么。$query = "SELECT a.*, c.name as categoryname,c.id as categoryid, ". " FROM #__k2_items as a".
" LEFT JOIN #_
下面是conf: dataSourceClass = "com.mysql.jdbc.jdbc2.optional.MysqlDataSource"
initializationFailFastException in thread "main" java.lang.RuntimeException: Property javax does not exist on target class com.mysql.jdbc.jdbc2