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

Answer 2

Additional way is to use MySQL IF operator. This helped me when both columns were BIGINT and Unsigned.

Answer 3

Please read "Out-of-Range and Overflow Handling".
It says:

As of MySQL 5.5.5, overflow during numeric expression evaluation results in an error. For example, the largest signed BIGINT value is 9223372036854775807, so the following expression produces an error.

mysql> SELECT 9223372036854775807 + 1;

ERROR 1690 (22003): BIGINT value is out of range in '(9223372036854775807 + 1)'

To enable the operation to succeed in this case, convert the value to unsigned;

mysql> SELECT CAST(9223372036854775807 AS UNSIGNED) + 1;
+-------------------------------------------+
| CAST(9223372036854775807 AS UNSIGNED) + 1 |
+-------------------------------------------+
|                       9223372036854775808 |
+-------------------------------------------+

A change to part of your query, as following, would solve the issue.

( CAST( quantity AS SIGNED ) - COUNT( game_moblist.spawn_id ) ) AS quantity_to_spawn

Otherwise you may require to change the sql_mode on unsigned operations.

mysql> SET sql_mode = 'NO_UNSIGNED_SUBTRACTION';

and then run your query to get desired output.

See also a similar posting answered on a forum here.