Check out example codes for "sql select syntax". It will help you in understanding the concepts better.

Code Example 1

SELECT * FROM table_name;

--or

SELECT column1, column2
FROM table_name;

Code Example 2

select [all/distinct] <COL1>, <COL2>, <COL3>
from <TABLE_NAME>
[join <JOIN_CONDITION>]
[where <CONDITION>]
[group by <COLUMN_NAME>]
[having <SEARCH_CONDITION>]
[order by <SORT_SPECIFICATION>]


/*
Specifically for SQL -> Oracle

LEGEND: 
[...]   :   optional entries
<...>   :   your specific entry
*/

Code Example 3

SELECT columname FROM tablename

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