data fetch and insert

[prasadshete]

hello all,
i want to fetch data from one colomn and copy it to the column in a different table..the database is postgres.
please tell me how to do it..
thanks and regards,

[michaelb]

Either one from the two examples below should work for you:

INSERT into tableA (columnB)  SELECT columnX FROM tableY;
-- a minor cosmetic touch
INSERT into tableA (columnB)  (SELECT columnX FROM tableY);

You can read more on the subject here

[prasadshete]

thank you for you reply..
actually i have made a mistake in the perception of a problem..
actually i have to update a column which is newly created
i am fetching the records from one column like names
and after making them all capital and removing any unusual character other thaN
alphabets i want them in anothe culumn which is newly created..
so the question is will i have to use insert query or update query
i am confused about the insert and update queries
plz guide me in this regard
thanx

Either one from the two examples below should work for you:

INSERT into tableA (columnB)  SELECT columnX FROM tableY;
-- a minor cosmetic touch
INSERT into tableA (columnB)  (SELECT columnX FROM tableY);

You can read more on the subject here

[michaelb]

Do these two columns, the source and the target, both belong to the same table?

[prasadshete]

yes
they belong to the same table, and
after making them caps and removing
the numbers present in name i want
to check it from anther database and if the name
in these two databases are same then
i want to give the the id
related with the name in first database

Do these two columns, the source and the target, both belong to the same table?