BIGINT UNSIGNED VALUE IS out of range My SQL

Question

I\'m getting the following error

#1690 - BIGINT UNSIGNED value is out of range in \'(legends.spawns.quantity -

Answer 1

Another possible cause seems to be how the type of the result variable is allocated.

eg.

mysql> select (total_balance_06 * 0.045/(1-(1/1.045)^term_06) + unsec_instalments)/income from tbl_EUR_PDH;

fails with

ERROR 1690 (22003): BIGINT UNSIGNED value is out of range in '(1 - ((1 / 1.045) ^ markov.tbl_EUR_PDH.term_06))'

whereas

mysql> select (total_balance_06 * 0.045/(1.0-(1.0/1.045)^term_06) + unsec_instalments)/income from tbl_EUR_PDH;

does what one would expect (note that I simply replace "1" by "1.0")

Philippe