I have a problem with table grids in Oracle SQL Developer. It has not been set with grids by default. How to display sql tables with grids? Now I have attributes separated by spaces and attributes are separated from value fields by "----".
Thanks in advance!
Perhaps you are using run script(F5) That's why you are seeing the result like that. 
Select(highlight) all or only the code blocks or statements you want to execute and then execute it with run statement (Ctrl+Enter)
Your question has two different paths:
Null's answer takes care of #1.
For #2, you can open the actual table being used in your query quite easily.

Or you can just directly browse the list of tables and views for your schema or under 'Other Users' in the tree and click on them to open them. Or double-click if you have disabled 'open object on single click' in preferences.
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