How to emulate REPEAT() in SQLite

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How to emulate REPEAT() in SQLite



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


REPEAT()


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?


REPEAT()




2 Answers
2



A simplified version of @Lukas Eder's solution using hex() instead of quote:


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

replace(hex(zeroblob(Y)), '00', X)



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



How to simulate 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)






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