如何在Oracle SQL Developer中查询数据库名称?

问题描述

如何在Oracle SQL Developer中查询数据库名称?我尝试了以下方法，但都失败了:

How do I query the database name in Oracle SQL Developer? I have tried the following and they all fail:

SELECT DB_NAME();

SELECT DATABASE();

为什么这些基本的MySQL查询在SQL Developer中失败?甚至这个失败:

Why do these basic MySQL queries fail in SQL Developer? Even this one fails too:

show tables;

编辑:我可以连接到数据库并运行查询，例如:

I can connect to the database and run queries such as:

select * from table_name_here;

数据库类型为Oracle，这就是为什么MySQL查询失败的原因.我认为这与数据库客户端有关，而不与数据库本身有关.我错了.我会把这个问题留给其他人，就像我以前一样迷路.

EDIT 2: The database type is Oracle, this is why MySQL queries are failing. I thought it was related to the database client not the database itself. I was wrong. I'll leave the question as is for other as lost as I was.

推荐答案

一旦我意识到我正在运行Oracle数据库而不是MySQL，我就找到了答案

Once I realized I was running an Oracle database, not MySQL, I found the answer

select * from v$database;

或

select ora_database_name from dual;

同时尝试.来源和信誉归功于: http://www.perlmonks.org/?node_id=520376

Try both. Credit and source goes to: http://www.perlmonks.org/?node_id=520376.

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