How do you safely import a large database?

Create a backup of the destination database and confirm that the import file is complete. Check whether it is compressed, which character set it uses, and whether it contains commands to create or delete tables. Import into a staging database first when the file comes from another environment or will replace a live site.

Browser tools such as phpMyAdmin have upload, memory, and execution-time limits. For a large SQL file, use the host’s database import feature, a command-line client, or a migration tool that processes the data in smaller steps. Ask the provider which method it supports before splitting the file manually.

Make sure the destination has enough storage and uses a compatible database version and collation. Pause writes to a live application during a replacement import so orders, registrations, or content changes are not lost between the backup and cutover. Avoid running two imports at the same time.

After completion, check the reported errors, table count, row count where practical, and application logs. Update environment-specific URLs or file paths with a tool that understands serialized WordPress data. Test login, content, forms, search, and transactions before directing users to the imported database.