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MySQL | REPEAT method

Database
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MySQL
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Functions
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String
schedule Mar 9, 2022
Last updated
local_offer MySQL
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MySQL's REPEAT(~) method returns the input string repeated count times.

Parameters

1. str | string

The string to repeat.

2. count | number

The number of times to repeat the input string.

Return value

The input string repeated count times.

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 repeat first name twice:

SELECT REPEAT(fname, 2)
FROM students;
+-------------------+
| REPEAT(fname, 2) |
+-------------------+
| SkySky |
| BenBen |
| TravisTravis |
| ArthurArthur |
| BenjaminBenjamin |
+-------------------+

Count < 1

If count < 1 then an empty string is returned:

SELECT REPEAT(fname, 0)
FROM students;
+------------------+
| REPEAT(fname, 0) |
+------------------+
| |
| |
| |
| |
| |
+------------------+

NULL input

If either of the inputs is NULL, NULL is returned:

SELECT REPEAT(fname, NULL)
FROM students;
+---------------------+
| REPEAT(fname, NULL) |
+---------------------+
| NULL |
| NULL |
| NULL |
| NULL |
| NULL |
+---------------------+
robocat
Published by Arthur Yanagisawa
Edited by 0 others
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