Oracle inner join

-- Rows with ID existing in both a, b and c
-- JOIN is equivalent to INNER JOIN
SELECT a.ID, a.NAME, b.VALUE1, c.VALUE1 FROM table1 a 
  JOIN table2 b ON a.ID = b.ID
  JOIN table3 c ON a.ID = c.ID
WHERE a.ID >= 1000;
-- ⇓ Test it ⇓ (Fiddle source link)

Source: sqlfiddle.com

Oracle select into and inner join

DECLARE 
    v_col1 table.col1%type;
    v_col3 table.col3%type;
    v_col4 table.col4%type;
    v_column table2.column%type;
BEGIN 
    SELECT table.col1, table.col3, table.col4, table2.column
    INTO v_col1, v_col3, v_col4, v_column
    FROM table
    JOIN table2
    On table.col6 = table2.col1;
END;

Source: stackoverflow.com

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