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How to emulate REPEAT() in SQLite

Most relational databases have some sort of REPEAT() string function, for instance:

SELECT REPEAT('abc', 3)

Would yield

abcabcabc

SQLite on the other hand has a very limited feature set. The functions supported by SQLite are listed here:

http://www.sqlite.org/lang_corefunc.html

Can REPEAT() be emulated with the functions available in SQLite?

like image 763
Lukas Eder Avatar asked Jul 19 '12 20:07

Lukas Eder


1 Answers

A solution was inspired by this answer to a related question, here:

How to emulate LPAD/RPAD with SQLite

I wanted to share this on Stack Overflow, as this may be useful to other SQLite users. The solution goes like this:

-- X = string
-- Y = number of repetitions

replace(substr(quote(zeroblob((Y + 1) / 2)), 3, Y), '0', X)
like image 83
Lukas Eder Avatar answered Oct 22 '22 02:10

Lukas Eder