By default the command of a table / inserted record seems to be at the forefront

I'm ready to be confused with the result of the insert function and order 'default' a table while I practice with the employee, EMP table

After inserting a new row in the EMP table, I tried to show the result with SELECT * FROM EMP and found that the last record inserted appeared on the first line of the table.

SQL > INSERT INTO EMP (EMPNO, ENAME, JOB) VALUES ('& EMPNO ',' & ENAME', ' & JOB ");

Enter the value for empno: 1234

Enter the value of ename: JIMMY

Enter the value of job: MANAGER

old 1: INSERT INTO EMP (EMPNO, ENAME, JOB) VALUES ('& EMPNO ',' & ENAME', ' & JOB ")

new 1: INSERT INTO EMP (EMPNO, ENAME, JOB) VALUES ("1234", "JIMMY", "MANAGER")

SQL > SELECT * FROM EMP;

EMPNO, ENAME, JOB HIREDATE DEPTNO COMM SAL MGR

---------- -------------------- ------------------ ---------- ---------- ---------- ---------- ----------

1234 JIMMY MANAGER

7369 SMITH CLERK 7902 17/12/1980 800 20

7499 ALLEN SALESMAN 7698 20/02/1981 1600 300 30

7521 WARD SALESMAN 7698 22/02/1981 1250 500 30

7566 JONES MANAGER 02/04/1981 7839, 2975 20

7654 MARTIN SALESMAN 7698 28/09/1981 1250 1400 30

7698 BLAKE MANAGER 01/05/1981 7839, 2850 30

7782 CLARK MANAGER 7839 09/06/1981 2450 10

7788, SCOTT, ANALYST, 7566 04/19/1987 3000 20

PRESIDENT OF KING 7839 17/11/1981 5000 10

7844 TURNER SALESMAN 7698 08/09/1981 1500 0 30

7876 ADAMS CLERK 7788 OF 23/05/1987, 1100 20

7900 JAMES CLERK 7698 03/12/1981 950 30

7902 FORD ANALYST 7566 03/12/1981 3000 20

7934 MILLER CLERK 1300 7782 10 23/01/1982

15 selected lines.

Should not go to the bottom of the table since it was introduced last?

I noticed that it was posted in the first place, because I gave the employee number is the smallest; also the empno. is the first column of the table, that it has something to do with the order?

I does not have an ORDER BY clause when I typed in the statements.

Is the table always controlled by the first column, by "default"?

Also: command - line by default, you place your order for a query select in oracle - Stack Overflow

What I found from this link: «...» "For obvious reasons, if you create a new table, inserting some rows and do a" select * "without the"where"clause, it returns the rows in the order they have been inserted." "

This is my first post here, the result is displayed in the console can be a bit messy... as if the question is too easy or something, my apologies, I started to learn.

Thank you!

Hello

As Solomon said, there is no default order for the rows of a table.

If

-the lines have been inserted in order by empno, and

-the table is very small, and

-lines don't have never updated or deleted, and

-you select all rows in the table, and

-you do not use the analytical functions, and

-you do not use CONNECT BY, GROUP BY, or certain other clauses

then exit may still be in order by empno, depending on your version and platform, but you can't count on it.  Oracle emphatically does not order for the lines as they are stored in a table, or the way in which they appear in the output when you do not use an ORDER BY clause.

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