Automating Database Table Dumping for MySQL
MySQL offers a convenient method to dump table data into individual files, which can be useful for backup purposes. However, manually specifying each table name in the dump command becomes impractical in dynamic environments where the number of tables can change over time. This article explores a solution to automate the dumping process, ensuring all existing tables are captured in separate files.
Automagic Dumping
While MySQL's default syntax requires the knowledge of table names beforehand, there is no direct command to dump all tables automatically. However, a combination of commands and scripting can accomplish this task.
Script-fu Approach
One approach involves creating a script that queries the database to retrieve all table names. Subsequently, it can iterate through the list and dump each table individually. Various scripting languages can access MySQL databases, including Python, Perl, and PHP.
Sample Bash Script
Below is a sample Bash script that dumps table data as SQL commands into separate, compressed files:
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Usage and Benefits
This script prompts for the database password and dumps the data into compressed files within the specified directory. It eliminates the need to manually update the dump script when new tables are added. Additionally, it can be easily extended to dump multiple databases by providing a comma-separated list of database names as the third argument.
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