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MySQL | MID method

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MySQL
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Functions
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String
schedule Mar 10, 2022
Last updated
local_offer MySQL
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tocTable of Contents
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MySQL's MID(~) method returns a substring with length len characters from the input string str starting at position pos.

Parameters

1. str | string

The string to return the substring from.

2. pos | number

The start position for the returned substring. Note that MySQL begins counting position from 1 and not 0.

3. len | number

The number of characters to return starting from start position.

Return value

A substring with length len characters from the input string str starting at position pos.

Examples

Consider the following table about some students:

student_id

fname

lname

day_enrolled

age

username

1

Sky

Towner

2015-12-03

17

stowner1

2

Ben

Davis

2016-04-20

19

bdavis2

3

Travis

Apple

2018-08-14

18

tapple3

4

Arthur

David

2016-04-01

16

adavid4

5

Benjamin

Town

2014-01-01

17

btown5

The above sample table can be created using the code here.

Basic usage

To return a 3 character substring starting from the second letter of student last names:

SELECT lname, MID(lname, 2, 3)
FROM students;
+--------+----------------+
| lname | MID(lname,2,3) |
+--------+----------------+
| Towner | own |
| Davis | avi |
| Apple | ppl |
| David | avi |
| Town | own |
+--------+----------------+

To return a 2 character substring from 'Hello' starting from the third letter:

SELECT MID('Hello', 3, 2);
+--------------------+
| MID('Hello', 3, 2) |
+--------------------+
| ll |
+--------------------+
robocat
Published by Arthur Yanagisawa
Edited by 0 others
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