Answers for "Oracle 12 Syntax: fetch first row"

fetch first 5 rows in oracle sql developer

-- Oracle <= 11g 
SELECT * FROM ( SELECT * FROM emp ORDER BY sal DESC ) WHERE ROWNUM <= 5;
	
-- Oracle 12c +
SELECT * FROM emp ORDER BY sal DESC FETCH FIRST 5 ROWS ONLY;

oracle select first row

-- NOTE: This is for Oracle/PLSQL only

-- > EXAMPLE
select * 
from CONSUMERS
where ROWNUM <= 1

/*
-- > SYNTAX
select * 
from {yourTable}
where ROWNUM <= {number-of-rows}

*/