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Exporting Orders Table Data for Backup


Backup a Table to a Text File Using SELECT ... INTO OUTFILE

Write a MySQL query to back up the "Orders" table data into a text file.

Solution:

-- This command exports all data from the Orders table to a CSV file
SELECT * FROM Orders
-- Specifies the output file location and name as /tmp/Orders_backup.txt
INTO OUTFILE '/tmp/Orders_backup.txt'
-- Sets the field separator to a comma for CSV formatting
FIELDS TERMINATED BY ','
-- Encloses field values in double quotes to handle special characters
ENCLOSED BY '"'
-- Sets the line separator to a newline character for row separation
LINES TERMINATED BY '\n';

Explanation:

  • Purpose of the Query:
    • To create a backup of table data in a text format for easy recovery or analysis.
    • Demonstrates exporting data using SELECT ... INTO OUTFILE.
  • Key Components:
    • Defines field and line delimiters to format the output.
    • Outputs data to a specified file path.
  • Real-World Application:
    • Useful for data migration or creating a snapshot of table contents.

Note:

  • Ensure the MySQL server has write access to the output directory.
  • The file must not already exist.

For more Practice: Solve these Related Problems:

  • Write a SQL query to export the "Orders" table into a CSV file using a semicolon as the delimiter.
  • Write a SQL query to export only selected columns from the "Orders" table into a text file with pipe-delimited fields.
  • Write a SQL query to export the "Orders" table into a CSV file and include a header row in the output.
  • Write a SQL query to export the "Orders" table data into a text file using UTF-8 encoding and custom line terminators.


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Previous MySQL Exercise: Backup Database Using MySQL Enterprise Backup.
Next MySQL Exercise: Restore Data from a Text File Using LOAD DATA INFILE.

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