CREATE VOLATILE TABLE test, NO FALLBACK
(MyCol SMALLINT NOT NULL)
PRIMARY INDEX (MyCol)
ON COMMIT PRESERVE ROWS;
INSERT INTO test VALUES (1);
INSERT INTO test VALUES (3);
INSERT INTO test VALUES (5);
SELECT MyCol FROM test;
UPDATE test
FROM (SELECT MyCol
, ROW_NUMBER() OVER (ORDER BY MyCol) AS RowNum_
FROM test) DT1
SET MyCol = test.MyCol + (RowNum * 1000)
WHERE test.MyCol DT1.MyCol;
SELECT MyCol FROM TEST;
How to update a column's value using row number in Teradata
Question
I want to update a column's value in this way
new value = old value + row_number() * 1000
also for row_number I want to use order by old value
but I didn't find any solution.
sample data
column
1
3
5
after update query it should be
column
1001
2003
3005
Solution
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