SQLite does not fully support ALTER TABLE statements. The only thing you can do is rename a table and/or add columns. If you want to rename a column, your best option is to create a new table with the new columns datatype/names, and to drop the old table in order to rename the new one.
Lets say, you have a table and need to rename "field-1" to "field-2": First ==>> rename the old table:
ALTER TABLE original RENAME TO tmp;
Now create the new table based on the old table but with the updated column name:
==>> create a table with the updated columns
CREATE TABLE original(
field_a INT
, field_b INT
);
Then copy the contents across from the original table.
INSERT INTO origignal(field_a, field_b)
SELECT field_a, field_b
FROM tmp;
Lastly, drop the old table.
DROP TABLE tmp;