How Do You Create and Restore a SQL Server Database Dump?
A SQL Server database dump is one of the more dependable ways to protect important data, move a database somewhere else and prepare for disaster recovery. The dump holds the structure and the data of a database as they were at one moment, so an administrator can recreate it later. Depending on the method, the dump is either a script file with the schema and data definitions or a binary backup file built for a fast restore.
Updated · Mr.PlanB
Overview
There are two main approaches. The first uses SQL Server Management Studio to generate scripts through a graphical wizard. It suits smaller databases and selective exports, since you can include both the schema and the data and write them out to a readable script file.
The second uses T-SQL commands such as BACKUP DATABASE to write binary backup files. Production environments usually go this way, because it supports full and differential backups and can be automated. You can schedule recurring jobs so the backups keep happening without anyone starting them, and integrity checks during the backup confirm the data is consistent.
How you restore depends on which type you have. A script file runs directly in a query window and rebuilds the objects and the data. A binary backup file goes back through the RESTORE DATABASE command or the graphical restore options. Run the verification commands first to confirm the backup is intact.
Automation, verification checks and a retention plan together give you SQL Server backups you can rely on and a restore that does not take all day.
FAQs
Q1: What is the difference between a script dump and a binary backup?
A script dump rebuilds the schema and data through SQL statements. A binary backup is built for restoring a full database quickly.
Q2: Can SQL Server backups be automated?
Yes, you can schedule them with the built-in job scheduling tools or with scripts.
Q3: Why should I verify a backup before restoring?
Verification tells you the backup file is not corrupt and will restore.
Q4: When should differential backups be used?
They capture the changes since the last full backup, which shortens the backup and uses less storage.
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