Npgsql.Bulk | performing COPY | SQL Database library
kandi X-RAY | Npgsql.Bulk Summary
kandi X-RAY | Npgsql.Bulk Summary
Helper for performing COPY (bulk insert and update) operation easily, using Entity Framework + Npgsql. .Net 4.5, Standard 2.0 are supported.
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QUESTION
I want to insert the DateTime value in PostgreSQL from C# I have fields in my model like this
...ANSWER
Answered 2021-May-25 at 06:35Are you sure you are using DateTime format in your db for ApplicationDate
? It seems like you're only storing a date, hence the time being at zero.
T is just a separator between the date and the time. I don't see why this is a problem, because you'll probably format the date before showing (after casting it to DateTime).
QUESTION
I have a console program that moves Data between two different servers (DatabaseA and DatabaseB).
Database B is a Postgres-Server.
It calls a lot of stored procedures and other raw queries.
I use ExecuteSqlRaw
a lot.
I also use NpsqlBulk.EfCore.
The program uses the same context instance for DatabaseB during the whole run it takes to finish.
Somehow i get locks on some of my tables on DatabaseB that never get released.
This happens always on my table mytable_fromdatabase_import
.
The code run on that is the following:
ANSWER
Answered 2020-Oct-16 at 13:15For concrete task you need right tools. Probably you have locks when retrieve Ids and also when trying to do not load already imported records. These steps are slow!
I would suggest to use linq2db (disclaimer, I'm co-author of this library) Create two projects with models from different databases: Source.Model.csproj - install linq2db.SQLServer Destination.Model.csproj - install linq2db.PostgreSQL Follow instructions in T4 templates how to generate model from two databases. It is easy and you can ask questions on linq2db`s github site.
I'll post helper class which I've used for transferring tables on my previous project. It additionally uses library CodeJam for mapping, but in your project, for sure, you can use Automapper.
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