Select Into SQL

Galaxy Glossary

How do I copy data from one table to another using SQL?

The `SELECT INTO` statement in SQL is used to create a new table and populate it with data from another table. It's a quick way to duplicate data or create a backup table.

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Description

The `SELECT INTO` statement is a powerful tool for creating new tables and populating them with data from existing tables. It's a concise way to duplicate data or create a backup copy of a table. This statement is often used in data warehousing, data migration, or simply for creating a copy of a table for testing or analysis. Crucially, the `SELECT INTO` statement creates a *new* table; it doesn't modify the original table. This is a key distinction from other data manipulation operations. It's important to ensure the new table's structure matches the selected data's structure. For example, if you're selecting columns from a table, the new table will have those same columns. If you need to modify the structure of the copied data, you'll need to use other SQL commands like `ALTER TABLE` after the `SELECT INTO` operation.

Why Select Into SQL is important

The `SELECT INTO` statement is crucial for data management tasks. It allows for efficient data duplication, backups, and data preparation for analysis or reporting. It's a fundamental skill for any SQL developer.

Select Into SQL Example Usage


SELECT orderID, customerName, orderDate
FROM Orders
WHERE orderDate >= '2023-10-26';

Select Into SQL Syntax



Common Mistakes

Frequently Asked Questions (FAQs)

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