How to Export All MySQL Tables to CSV Using mysqldump?

Dumping All MySQL Tables in CSV Format with mysqldump

Question:

How can I simultaneously dump the contents of all tables within a MySQL database into CSV format using mysqldump?

Answer:

While mysqldump lacks a direct command to dump all tables in CSV format, you can achieve this by employing the following approach:

Step 1: Parse Table Names

Obtain a list of all table names using the command:

mysql -u username -ppassword dbname -sN -e "SHOW TABLES;"

Step 2: Iterate Over Tables and Dump

For each table name retrieved in Step 1, run this command in a loop (replace with the actual table name):

mysql -B -u username -p password database -h dbhost -e "SELECT * FROM <table_name>;" \
| sed "s/\"/\"\"/g;s/'/\'/;s/\t/\",\"/g;s/^/\"/;s/$/\"/;s/\n//g"

Step 3: Save Output to File

Append the following to the end of the command to save the output as a CSV file:

> <table_name>.csv

This approach generates separate CSV files for each table, providing a comprehensive dump of all table contents.

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