PL/SQL Skip value on basic loop - sql

Question

I am new to PL/SQL and just want to know what I can do here.
I have created a table that loops a counter up to 10 that is displayed in the table data.
How do I achieve it so I can count to 1-10 but exclude a number such a 5 so that it displays 1, 2, 3, 4, 6, 7, 8, 9, 10?
Current code is as follows;
DROP TABLE COUNTER
CREATE TABLE COUNTER (
COUNTER VARCHAR2(60)
);
DECLARE V_COUNTER NUMBER(2) := 1;
BEGIN
LOOP
INSERT INTO COUNTER (COUNTER)
VALUES (V_COUNTER);
V_COUNTER := V_COUNTER + 1
EXIT WHEN V_COUNTER = 11;
END LOOP;
END;
Table data;
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10

Answer 1

Something like:
DROP TABLE COUNTER
CREATE TABLE COUNTER (COUNTER VARCHAR2(60));
BEGIN
FOR i IN 1 .. 10 LOOP
IF i <> 5 THEN
INSERT INTO COUNTER (COUNTER) VALUES (i);
END IF;
END LOOP;
END;
/

Answer 2

In general it's better to process such statements in bulk and avoid context switching ( here's more info on this topic.
DECLARE
TYPE t_values IS
TABLE OF NUMBER;
l_values t_values;
BEGIN
SELECT
level counter
BULK COLLECT
INTO l_values
FROM
dual
WHERE
level NOT IN (
6,
7
)
CONNECT BY
level <= 11;
FORALL i IN l_values.first..l_values.last
INSERT INTO counter VALUES ( l_values(i) );
END;
/
if code is simple enough you can always use plain insert stmt.
INSERT INTO counter
SELECT
level
FROM
dual
WHERE
level NOT IN (
6,
7
)
CONNECT BY
level <= 11;