Here is an example:
Prepare data:
create table fruit
(
id number(4) primary key,
name varchar2(150)
);
Insert into fruit(ID,NAME) values (1,'Apple');
Insert into fruit (ID,NAME) values (2,'Banana');
Insert into fruit(ID,NAME) values (3,'Pear');
Insert into fruit(ID,NAME) values (4,null);
commit;
select id, name from fruit;
Here is the output:
ID NAME
1 Apple
2 Banana
3 Pear
4 null
select id, name from fruit where lower(name) like '%p%'; ('%p%', p isminuscule here.)
OR
select id, name from fruit where upper(name) like '%P%'; ('%P%', P is capitalized here.)
Here is the output:
ID NAME
1 Apple
3 Pear
From the result, you can see if the value of name column containscharacter 'p', no matter 'p' is minuscule or capitalized ,
that record will be listed in the query result.
