MySQL: can't insert a record because a foreign key issue -

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i have schema enter image description here

when i'm trying add new isp_share record error

enter image description here

although isp table has record id=3

enter image description here

what problem?

from documentation http://dev.mysql.com/doc/refman/5.0/en/create-table-foreign-keys.html

the parent , child tables must use same storage engine..corresponding columns in foreign key , referenced key must have similar data types

also check of other tables.


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