SQL Reference

Quick Reference

The MySQL MID() function extracts a substring from a string, starting at any position from the beginning or end of the string.

The following extracts a string from the original string, starting at position seven and includes seven characters.

SELECT MID('1smartchicken.com', 7, 7) AS 'Extracted String';

Output

Extracted String
chicken

Syntax

MID(string, start, length)

Parameters

ParameterDescription
stringThe string to extract from (required)
startThe start position; it can be both a positive or negative number; if it is a positive number, this function extracts from the beginning of the string; if it is a negative number, this function extracts from the end of the string (required)
lengthThe number of characters to extract (required)

SQL Notes:

  • Any work being done to modify the structure of a database or delete tables or the the database itself should only be done after making a recent backup

We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.