What should i learn in databases?
I'll be going to grad school from january. My interest is always towards databases. But i dont have enough knowledge in databases. I'm planning to learn myself some database tools or something related to databases, but i'm quite confused with what to learn.

Can anyone suggest me what knowledge should i perceive that can help me? I mean how can i start ground work for gaining better knowledge in databases(I've only worked on Mysql earlier for a project).
What should i learn in databases?
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I'll be going to grad school from january. My interest is always towards databases. But i dont have enough knowledge in databases. I'm planning to learn myself some database tools or something related to databases, but i'm quite confused with what to learn.

Can anyone suggest me what knowledge should i perceive that can help me? I mean how can i start ground work for gaining better knowledge in databases(I've only worked on Mysql earlier for a project).