tags within a code block using tags. They accurately reflect the content of the conversation, which discusses how to copy data in SQLite and alternative methods to using a SELECT INTO statement.

Here's what you can use instead:

1. CREATE TABLE ... AS ... (CTAS): This approach uses the CREATE TABLE ... AS ... syntax, which lets you define a new table based on the results of a SELECT statement.

For example, imagine you have a table named customers and you want to create a new table named active_customers containing only active customers. You can write:

CREATE TABLE active_customers AS
SELECT * FROM customers WHERE isActive = 1;

This will create a new table active_customers with the same structure as customers but only containing rows where the isActive column is set to 1.

Example 1: Copying all data from one table to another

-- Create a new table named 'customers_backup' with the same structure as 'customers'
CREATE TABLE customers_backup AS
SELECT * FROM customers;

This code creates a new table customers_backup that's an exact copy of the customers table, including all columns and rows.

Example 2: Copying specific columns with filtering

-- Create a new table named 'high_value_orders' with 'order_id', 'product_name', and 'price' for orders above $100
CREATE TABLE high_value_orders AS
SELECT order_id, product_name, price FROM orders WHERE price > 100;

This code creates a new table high_value_orders containing only the order_id, product_name, and price columns from the orders table. It also filters the data to include only orders with a price greater than $100.

Example 3: Creating a table with calculations

-- Create a new table named 'discounted_products' with 'product_id', 'product_name', and 'discounted_price' (price * 0.9)
CREATE TABLE discounted_products AS
SELECT product_id, product_name, price * 0.9 AS discounted_price FROM products;

INSERT INTO with SELECT:

This method uses a two-step approach:

• First, you write an INSERT INTO statement specifying the target table and its columns (if necessary).
• Second, you use a SELECT statement within the INSERT INTO to retrieve data from the source table.

Here's an example:

INSERT INTO new_table (column1, column2)
SELECT column1, column2 FROM source_table;

This code inserts all rows from source_table (including only columns column1 and column2) into the new table new_table.

ATTACH DATABASE:

This method allows you to temporarily connect another SQLite database file. You can then use regular SELECT and INSERT statements to copy data between tables across the attached databases.

-- Attach the database 'data.db' as 'external_data'
ATTACH DATABASE 'data.db' AS external_data;

-- Insert data from 'external_data.source_table' into 'new_table'
INSERT INTO new_table
SELECT * FROM external_data.source_table;

-- Detach the 'external_data' connection
DETACH DATABASE external_data;

Export and Import (using external tools):

While not a purely SQLite solution, you can use external tools to achieve data copying. Here's the general idea:

• Export the source table data to a file format like CSV (Comma-Separated Values).
• Use a separate tool or script to import the data from the file into the new table.

Choosing the right method:

• For simple data copies within the same database, CTAS or INSERT INTO with SELECT are efficient choices.
• If you need to copy data between separate databases, ATTACH DATABASE is a good option.
• For complex data manipulation or integration with other tools, consider the export/import approach.