sqlite rename column name

Say you have a table and need to rename "colb" to "col_b":

First you rename the old table:

ALTER TABLE orig_table_name RENAME TO tmp_table_name;

Then create the new table, based on the old table but with the updated column name:

CREATE TABLE orig_table_name (
col_a INT
, col_b INT
);

Then copy the contents across from the original table.

INSERT INTO orig_table_name(col_a, col_b)
SELECT col_a, colb
FROM tmp_table_name;

Lastly, drop the old table.

DROP TABLE tmp_table_name;

Wrapping all this in a

BEGIN
TRANSACTION;

and

COMMIT;

is
also probably a good idea.