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Efficient Compressed Backup of MyDatabase


Backup Database with Compression

Write a MySQL command to back up the "MyDatabase" database and compress the backup file.

Solution:

# This command creates a backup of MyDatabase and compresses it in one step
# mysqldump generates the backup, -u root -p specifies user and password prompt
# The | pipe sends the output to gzip for compression
# > redirects the compressed output to a .sql.gz file
mysqldump -u root -p MyDatabase | gzip > MyDatabase_backup.sql.gz

Explanation:

  • Purpose of the Query:
    • To reduce the size of the backup file by compressing it.
    • Demonstrates combining mysqldump with gzip for efficient storage.
  • Key Components:
    • The pipe | redirects the output of mysqldump into gzip.
    • .sql.gz indicates a compressed SQL backup file.
  • Real-World Application:
    • Saves disk space and simplifies backup file transfers.

Notes:

  • Ensure gzip is installed on your system.
  • Compression may slightly increase the time required for the backup.

For more Practice: Solve these Related Problems:

  • Write a command to back up the "MyDatabase" database and compress the output with gzip at maximum compression.
  • Write a command to back up the "MyDatabase" database, then encrypt and compress the backup file.
  • Write a command to back up the "MyDatabase" database and compress the output using bzip2 instead of gzip.
  • Write a command to back up the "MyDatabase" database and pipe the output through a custom compression script.


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Previous MySQL Exercise: Backup all Databases using mysqldump.
Next MySQL Exercise: Restore a Full Database from Backup.

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