The mysqldump command in MySQL is used to create backups of databases. One important option available is --default-character-set=name, which allows you to specify the default character set to use during the dumping process. This option is particularly useful when dealing with databases that have different character set requirements or when you want to ensure data integrity during backups.
Here are several examples demonstrating how to use --default-character-set=name with mysqldump:
Example 1: Dump a database with UTF-8 character set:
mysqldump --default-character-set=utf8 dbname > dbname.sql
Output: This command dumps the database dbname with UTF-8 character set specified by --default-character-set=utf8 into a file dbname.sql.
Example 2: Dump a database with Latin1 character set:
mysqldump --default-character-set=latin1 dbname > dbname.sql
Output: This command dumps the database dbname with Latin1 character set into a file dbname.sql.
Example 3: Dump a database with UTF-8mb4 character set:
mysqldump --default-character-set=utf8mb4 dbname > dbname.sql
Output: This command dumps the database dbname with UTF-8mb4 character set into a file dbname.sql.
Example 4: Dump a database with a custom character set like cp1251:
mysqldump --default-character-set=cp1251 dbname > dbname.sql
Output: This command dumps the database dbname with custom character set cp1251 into a file dbname.sql.
Example 5: Dump a database without specifying a character set (default behavior):
mysqldump dbname > dbname.sql
Output: This command dumps the database dbname using the default character set of the database server into a file dbname.sql.
To verify whether the example commands executed successfully, you can check the generated SQL dump file (dbname.sql) using a text editor or by importing it back into another MySQL database instance. Ensure that the character set specified matches the one expected for your data to confirm the command’s effectiveness.
Also check similar articles.
Debug Information in mysqldump
Debug Check in mysqldump
Debugging Options in mysqldump
Dump Multiple Databases with mysqldump
Including MySQL Specific Create Options in mysqldump
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