How Can I Access and Inspect Tables in an Attached SQLite Database?

Access tables in attached SQLite database files via ATTACH command

Attach SQLite database files using the ATTACH command to integrate data from multiple data sources. After attaching the database, you may want to review the structure and contents of the attached tables. This article provides SQL queries to accomplish this task efficiently.

Step 1: List available tables

To list the tables in the attached database, execute the following query:

<code>.tables</code>

This will display a list of all tables in the current database, including tables from attached files.

Step 2: Check table structure

To view the schema for a specific table, use the following query:

<code>.schema 表名</code>

Replace "table name" with the name of the table you want to check. This displays the column names, data types, and any constraints associated with the table.

Step 3: Retrieve table contents

To print all rows in the table, execute the following query:

<code>SELECT * FROM 表名;</code>

Replace "Table Name" with the name of the table you want to view. This will output all data present in the table.

Step 4: Other commands

The sqlite3 command line tool provides many commands for navigating and managing databases. To list all available commands, type the following query:

<code>.help</code>

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