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MySQL | REPEAT method
schedule Mar 5, 2023
Last updated local_offer
Tags 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 |+---------------------+
Published by Arthur Yanagisawa
Edited by 0 others
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Official MySQL Documentation
https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_repeat
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