search
Search
Unlock 100+ guides
search toc
close
Cancel
Post
account_circle
Profile
exit_to_app
Sign out
What does this mean?
Why is this true?
Give me some examples!
search
keyboard_voice
close
Searching Tips
Search for a recipe:
"Creating a table in MySQL"
Search for an API documentation: "@append"
Search for code: "!dataframe"
Apply a tag filter: "#python"
Useful Shortcuts
/ to open search panel
Esc to close search panel
to navigate between search results
d to clear all current filters
Enter to expand content preview
Doc Search
Code Search Beta
SORRY NOTHING FOUND!
mic
Start speaking...
Voice search is only supported in Safari and Chrome.
Shrink
Navigate to
MySQL
295 guides
keyboard_arrow_down
check_circle
Mark as learned
thumb_up
0
thumb_down
0
chat_bubble_outline
0
Comment
auto_stories Bi-column layout
settings

# MySQL | BINARY

schedule Aug 12, 2023
Last updated
local_offer
MySQL
Tags
expand_more
mode_heat
Master the mathematics behind data science with 100+ top-tier guides
Start your free 7-days trial now!

MySQL's BINARY operator converts an expression to a binary string.

# Syntax

SELECT BINARY expression;
CAST(expression AS BINARY);
CONVERT(expression USING BINARY);

# Examples

## Basic usage

To convert 'cherry' to a binary string:

SELECT BINARY 'cherry';
+----------------------------------+
| BINARY 'cherry' |
+----------------------------------+
| 0x636865727279 |
+----------------------------------+

'cherry' is converted to a binary string represented as '636865727279' in hexadecimal notation.

## Byte by byte comparison

To perform byte by byte comparison between two strings:

SELECT BINARY 'skytowner' = 'SKYTOWNER';
+----------------------------------+
| BINARY 'skytowner' = 'SKYTOWNER' |
+----------------------------------+
| 0 |
+----------------------------------+

Using the BINARY operator we are able to perform byte by byte comparison of the two strings rather than a character by character comparison. As 's' and 'S' have different byte values (same applies for 'k' and 'K', 'y' and 'Y' etc) we return 0 (false).

If we had performed a character by character comparison instead:

SELECT 'skytowner' = 'SKYTOWNER';
+---------------------------+
| 'skytowner' = 'SKYTOWNER' |
+---------------------------+
| 1 |
+---------------------------+

The two strings are recognized as being equal (as default collation of utf8mb4_0900_ai_ci is case insensitive).

Edited by 0 others
thumb_up
thumb_down
Comment
Citation
Ask a question or leave a feedback...
thumb_up
0
thumb_down
0
chat_bubble_outline
0
settings
Enjoy our search
Hit / to insta-search docs and recipes!