Thank you for all the testing. I really ought to get a mysql instance running to test on. Not knowing it very well and not testing it has led me to some embarrassing mistakes.

The purpose of the variable is supply an id for each record. The purpose of the CASE statement is to stop adding numbers at 6. So we get, 1, 2, 3, 4, 5, 6, 6, 6, .... After that, a simple GROUP BY is used. The reason i suggested it is threefold: to avoid rewriting the subquery, to not require any confusing LIMIT or OFFSET parameters, to allow a simple way to change the number. At this point, however, i wonder if any possible benefit is offset by the confusion.

In reply to Re^8: How to add columns with new row name using perl from mysql query? by chacham
in thread How to add columns with new row name using perl from mysql query? by perlanswers

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