Escape Special Characters in MySQL

Q

How To Escape Special Characters in SQL statements in MySQL?

✍: FYIcenter.com

A

There are a number of special characters that needs to be escaped (protected), if you want to include them in a character string. Here are some basic character escaping rules:

  • The escape character (\) needs to be escaped as (\\).
  • The single quote (') needs to be escaped as (\') or ('') in single-quote quoted strings.
  • The double quote (") needs to be escaped as (\") or ("") in double-quote quoted strings.
  • The wild card character for a single character (_) needs to be escaped as (\_).
  • The wild card character for multiple characters (%) needs to be escaped as (\%).
  • The tab character needs to be escaped as (\t).
  • The new line character needs to be escaped as (\n).
  • The carriage return character needs to be escaped as (\r).

Here are some examples of how to include special characters:

SELECT 'It''s Sunday!' FROM DUAL;
It's Sunday! 

SELECT 'Allo, C\'est moi.' FROM DUAL;
Allo, C'est moi.

SELECT 'Mon\tTue\tWed\tThu\tFri' FROM DUAL;
   Mon   Tue     Wed     Thu     Fri

 

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2016-10-16, 201👍, 0💬