how to delete a particular element

Question

how to delete a element from a row.

Answer 1

DELETE FROM table_name WHERE some_column=some_value;

Answer 2

DELETE FROM table_name WHERE id=<value _of_pk_column>;
using id in where will ensure only 1 record is deleted and as it is indexed process will be faster.
for new users it's better to use select query before deleting records, to avoid accidental deletion of records

Answer 3

thanx buddy :-)

Answer 4

DELETE column_name
FROM table_name
WHERE column_name = column_value
This is right as well