sql - MySQL query adds 0 to DB yet log says otherwise? -


i have table 3 columns, | id | systemid | vendortxcode |.

id = 1, systemid = -1, vendortxcode = 1

i'm running following query:

update core_licences set systemid = '51' vendortxcode = '1'

it works no errors, systemid in table changes 0 not 53. opened mysql.log , looks fine:

110 prepare   update core_licences set systemid = ? vendortxcode = ? 110 execute   update core_licences set systemid = '51' vendortxcode = '1'

php fine, not reporting errors, , can see mysql.log file above, query being built , executing fine. what cause table field updated '0' when update query working fine?

the field int allowing 30 characters. have tried varchar no luck. have tried i , s when binding query parameters.

everything fine, i'm 100% sure. it's damn table field! i've deleted systemid column , recreated it, no luck.

this doesn't explain situation, remember rather '1' not thing same 1, , '51' not same 51. you're forcing data type conversion, , looks conversion '1' 1 succeeds, query matches correct record, somehow conversion '51' 51 fails, such result null, , mysql treat 0 if null not allowed in column.


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