SELECT DISTINCT values and INSERT INTO table

Question

I want to take a column with values that repeat multiple times and get that value only once and store it for later use, but at the same time I would like to get another valu

Answer 1

If I understand what you're trying to accomplish correctly, you should be able to do this:

INSERT INTO Table
SELECT A, B, MAX(C) + 1
FROM Table
GROUP A, B

This should insert a row for every distinct combination of A and B as well as increment C.

Answer 2

You can use INSERT INTO... SELECT statement on this,

INSERT INTO tableName (A, B, C)
SELECT A, B, MAX(C) + 1
FROM tableName
GROUP BY A, B

• SQLFiddle Demo

Answer 3

Try this:

SELECT * INTO new_table FROM
   (SELECT DISTINICT * FROM table_name) x

Answer 4

This can be done using windowing functions.

INSERT INTO TABLENAME (A, B, C)
SELECT A, B, C + 1
FROM(
select A, B, C, MAX(C) OVER(PARTITION BY A, B) AS MAXC
FROM TABLENAME 
) AS NEW_ROWS
WHERE C = MAXC