How can I list the tables in a SQLite database file that was opened with ATTACH?

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To list the tables in an SQLite database file that was opened with ATTACH, you can use the following SQL query. The ATTACH statement allows you to attach multiple database files to a single database connection. You can then use the PRAGMA statement to inspect the attached databases and their tables.

Here's an example:

Suppose you have a primary SQLite database file called primary.db and another database file called attached.db, and you want to list the tables in both databases after attaching attached.db to the primary database connection.

sql
-- Attach the secondary database file
ATTACH DATABASE 'attached.db' AS attached;

-- List the tables in the primary database
SELECT name FROM sqlite_master WHERE type='table';

-- List the tables in the attached database
-- Replace 'attached' with the alias you used in the ATTACH statement
-- Replace 'attached' with the alias you used in the ATTACH statement
SELECT name FROM attached.sqlite_master WHERE type='table';

In this example:

  1. We use the ATTACH DATABASE statement to attach the attached.db file to the primary database connection with the alias attached.

  2. We use the first SELECT statement to list the tables in the primary database. This statement queries the sqlite_master table, which contains metadata about the database, including information about tables.

  3. We use the second SELECT statement to list the tables in the attached database (attached.db). To do this, we reference the attached database using its alias (attached) in the query.

After executing these SQL statements, you will receive a list of tables from both the primary and attached databases. Make sure to replace 'attached.db' with the actual path to your attached database file and 'attached' with the alias you provided in your ATTACH DATABASE statement.

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