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 # MyDB
 
-I have no clue how databases work
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+I have no clue how databases work
+It has been so long since my DB course, all I know is that they use B-Trees to store data
+I'm gonna attempt to write my own DB anyway
+
+## File format
+
+### Train of thought
+
+As far as I'm concerned, the most important thing is probably the way the database gets stored. I don't want it to be in memory so I will have to create a file (or more) on the filesystem in which all the data is going to be stored. 
+As far as I know, sqlite stores databases in a single file, I'm not sure about others like postgresql, mysql/mariadb, oracledb, etc. 
+Maybe having a file per table instead of per database is easier to set up, but it might be just as hard, and doing IO on multiple files might be bad for performance.
+
+### Format
+
+| Offset  | Description |
+|---------|-------------|
+| 0       | Something   |
+| todo!() | todo!()     |
+
+## SQL Interpreter
+
+todo!()
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