key is not present in table外键 外键取值规则:空值或参照的主键值。 (1)插入非空值时,如果主键表中没有这个值,则不能插入。 (2)更新时,不能改为主键表中没有的值。 (3)删除主键表记录时,你可以在建外键时选定外键记录一起级联删除还是拒绝删除。 (4)更新主键记录时,同样有级联更新和拒绝执行的选择。
iction_delivery_type" Detail: Key (delivery_restriction_id)=(62) is not present in table "delivery_restriction". What I don't understand is that the values delivery_restriction_id = 62 delivery_type_id = 343 are clearly present from this line: Batch entry 0 insert into public.del_res...
django.db.utils.IntegrityError: insert or update on table "exercises_exercise" violates foreign key constraint "exercises_exercise_language_id_9675c687_fk_core_language_id" DETAIL: Key (language_id)=(16) is not present in table "core_language". ...
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ActiveRecord::InvalidForeignKey: PG::ForeignKeyViolation: ERROR: insert or update on table "insights_facets" violates foreign key constraint "fk_rails_xxxxxxx" DETAIL: Key (host_id)=(X) is not present in table "hosts". Environment Red Hat Satellite 6.12+...
(For Eachin Visual Basic,for eachin C++) returns an object of the type of the elements in the collection. Since each element of theIDictionary<TKey,TValue>is a key/value pair, the element type is not the type of the key or the type of the value. Instead, the element type isKey...
It doesn't look like there's a strong uniqueness guarantee?https://referencesource.microsoft.com/#system.transactions/System/Transactions/TransactionTable.cs,237 That could be a problem?In practice, the hash code of each transaction appears to be set to a monotonically-increasing integer. ...
When persisting a key, CNG can create two files. The first file contains the private key in the new CNG format and is always created. This file is not usable by the legacy CryptoAPI CSPs. The second file contains the same private key in the legacy CryptoAPI key container. The second ...
I have tried to make sure the case is the same for fields and tables and that does not seem to have an effect. Googling has produced no joy. Edit: Here are some examples of queries that do and do not throw this error: Good SQL: select * from `Tables` where (TableName like 'IL%...
(Bad binary signature Exception) what is this? [ASP.NET MVC 5] Custom 500 error page fails just after redirection [Beginner] Create a model class field containing a list of objects from another table with ASP.NET MVC [CORE MVC] How to get parent controller name in a partial view? [Cri...