How to transform to lowercase a value in SQLite?

In the SQLite database, I have stored all values in uppercase.

How can I select the specified value in the database using lower case?

How do I convert a string to lowercase in SQL?

The LOWER() function converts a string to lower-case.

How do I make SQLite query case insensitive?

How do I make SQLite query case-insensitive? To be case insensitive on firstname , write this: select * from tbl where firstname='john' COLLATE NOCASE and lastname='doe' . It's specific to that one column, not the entire where clause.

Is SQLite like case sensitive?

Note that SQLite LIKE operator is case-insensitive. It means "A" LIKE "a" is true. However, for Unicode characters that are not in the ASCII ranges, the LIKE operator is case sensitive e.g., "Ä" LIKE "ä" is false.

SQLite has a LOWER function for this:

sqlite> SELECT LOWER("Hello, WORLD!");
hello, world!

The lower(X) function returns a copy of string X with all ASCII characters converted to lower case. The default built-in lower() function works for ASCII characters only. To do case conversions on non-ASCII characters, load the ICU extension.