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Databasestructure Relations


Databasestructure Relations

By : Cece
Date : November 17 2020, 11:58 AM
around this issue What you have here is mostly fine for a simple implementation, but be careful with your Foreign Key names. "msg" in Msg should be called MsgContentId or something similar if it is the ID pointing to the second table. For a n:m relationship you will just need foreign keys pointing both ways. Hope this helps!
code :


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In doctrine what implications do 'relations:' have if the 2 relations are defined for two seperate column with a same ta

In doctrine what implications do 'relations:' have if the 2 relations are defined for two seperate column with a same ta


By : Jorge Chávez
Date : March 29 2020, 07:55 AM
I wish this helpful for you Yes, you need to name them differently.
I asked & received for the same problem here:
laravel get all models with relations and the relations of these relations

laravel get all models with relations and the relations of these relations


By : Ethan Sugar
Date : March 29 2020, 07:55 AM
should help you out Use nested eager loading:
code :
$block = Block::with('regions.seats', 'seats')->where('id', $blockId)->get();
cypher delete all node relations where relations count is bigger than a number

cypher delete all node relations where relations count is bigger than a number


By : Jonathan
Date : March 29 2020, 07:55 AM
will be helpful for those in need You aggregate for r when counting r, which means that each row will have a count of exactly 1.
To fix this, you should aggregate for p:
code :
match (p:P)<-[r:LINK]-(:G) 
with p, count(r) as num 
where num > 100 
match (p)<-[r:LINK]-(:G) 
delete r
match (p:P)<-[r:LINK]-(:G) 
with p, count(r) as num, collect(r) as rs
where num > 100 
unwind rs as r
delete r
match (p:P)<-[r:LINK]-(:G) 
with p, collect(r) as rs
where size(rs) > 100 
unwind rs as r
delete r
Understanding relations and where make relations on table Microsoft Dynamics Ax 2012

Understanding relations and where make relations on table Microsoft Dynamics Ax 2012


By : user1577229
Date : March 29 2020, 07:55 AM
Force 'fetch joined' relations to include IDENTITY of their ManyToOne relations using HYDRATE_ARRAY?

Force 'fetch joined' relations to include IDENTITY of their ManyToOne relations using HYDRATE_ARRAY?


By : Mad
Date : March 29 2020, 07:55 AM
will help you You can use Doctrine\ORM\Query::HINT_INCLUDE_META_COLUMNS to include the foreign key column values in the result:
code :
$paginator->getQuery()
->setHint(\Doctrine\ORM\Query::HINT_INCLUDE_META_COLUMNS, true)
->setHydrationMode(\Doctrine\ORM\Query::HYDRATE_ARRAY);
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