sqliteHow do I use UUIDs in SQLite?
UUIDs (Universally Unique Identifiers) can be used in SQLite to create a unique identifier for each row in a table. To use UUIDs in SQLite, you first need to create a table with a column to store the UUIDs. The following example creates a table named users
with a column named uid
to store the UUIDs:
CREATE TABLE users (
uid UUID PRIMARY KEY,
name TEXT
);
Then you can insert UUIDs into the table using the uuid()
function. The following example inserts a row with a new UUID into the users
table:
INSERT INTO users (uid, name) VALUES (uuid(), 'John Doe');
The uuid()
function generates a version 4 UUID, which is composed of random numbers and letters.
Code explanation
CREATE TABLE
- creates a table with the specified columns and data typesUUID
- the data type used to store the UUIDsPRIMARY KEY
- ensures that each row has a unique identifierINSERT INTO
- inserts a row into the specified tableuuid()
- generates a new version 4 UUID
Helpful links
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