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Does SQLite support Enums?

There is no enum type in SQLite, only the following: NULL. INTEGER.

What is enum in SQL?

An ENUM is a string object with a value chosen from a list of permitted values that are enumerated explicitly in the column specification at table creation time.

When using SQLite what datatypes can you assign to a column when creating a new table select all that apply?

Each column in an SQLite 3 database is assigned one of the following type affinities:

  1. TEXT.
  2. NUMERIC.
  3. INTEGER.
  4. REAL.
  5. BLOB.

How you can store information entered by user in SQLite table?

We use the SQLiteOpenHelper method getWritableDatabase() to get an SQLiteDatabase object reference to our already created database. The Person details are stored in a ContentValues object, with the appropriate column name as key, and corresponding data as value.

What is Sqlite_sequence table?

SQLite keeps track of the largest ROWID using an internal table named “sqlite_sequence”. The sqlite_sequence table is created and initialized automatically whenever a normal table that contains an AUTOINCREMENT column is created.

What is BLOB in SQLite?

A BLOB (large binary object) is an SQLite data type that stores large objects, typically large files such as images, music, videos, documents, pdf, etc. We need to convert our files and images into binary data (byte array in Python) to store it into SQLite database.

How do you create an enum in a database?

MySQL allows us to define the ENUM data type with the following attributes: NOT NULL: By default, the ENUM data type is NULL….The following are the syntax used to define ENUM data type in the column:

  1. CREATE TABLE table_name (
  2. Column1,
  3. Column2 ENUM (‘value_1′,’value_2′,’value_3’),
  4. Column3…
  5. );

What is the difference between int and INTEGER in SQLite?

Yes, there is a difference: INTEGER is a special case in SQLite, when the database does not create a separate primary key, but reuses the ROWID column instead. When you use INT (or any other type that “maps” to INTEGER internally) a separate primary key is created.

How do I create a database in SQLite?

Create A New Database

  1. At a shell or DOS prompt, enter: “sqlite3 test. db”. This will create a new database named “test. db”. (You can use a different name if you like.)
  2. Enter SQL commands at the prompt to create and populate the new database.
  3. Additional documentation is available here.

How is data stored in SQLite?

The Android SDK provides dedicated APIs that allow developers to use SQLite databases in their applications. The SQLite files are generally stored on the internal storage under /data/data//databases. However, there are no restrictions on creating databases elsewhere.

What is a SQLite table?

Every SQLite database contains a single “schema table” that stores the schema for that database. The schema for a database is a description of all of the other tables, indexes, triggers, and views that are contained within the database.