Most of the actions are started here. See Menu Commands documentation.

Database objects are shown in a logical tree structure here. "Main" is the core database (opened), additional databases can be attached or the current database can be closed and another one opened. See Schema Browser documentation.

SQL statements or scripts can be loaded or edited or executed here. See SQL Editor documentation.

Tables and results of queries are shown here. Records in tables can be edited. See Data Browser documentation.

Error messages and status are written here. This window resizes itself to fit its content, and will not be visible at all if there is no status or error to show.