EF Core Db First - filter out tables based on schema name

Entity Framework Database first multiple schemas duplicate table names

Code First can meet your needs. Prefix your classes as you mention and then let EF handle the mapping behind the scenes. You can do this in a single context:...public class Person { public int PersonId { get; set; } public string LastName { get; set; } public string FirstName { get; set; } ... } public class empPerson { public ...

.net core entity framework (EF Core) table naming convention

Faraj's ...answer... not works on ...ThreeCapitalWords..., result is ...three_capitalwords.......Here is my solution, based on ...this answer...:... /// <summary> /// /// </summary> /// <param name="preserveAcronyms">If true, 'PrepareXXRecord' converted to 'prepare_xx_record', /// otherwise to 'prepare_xxrecord'</param> publi...

EF Core Migrations with Multiple DB Schemas

builder.HasDefaultSchema()... is used to set schema for model. MigrationHistory table is configured bit differently. You can read more about it ...here...From the link,...The simplest scenario is when you just want to change the table name or schema. This can be done using the MigrationsHistoryTable method in OnConfiguring (or ConfigureServices on ...

Seeding DB made by Code First EF Core DB

To generate a lot of data, you can use a lib like ...Bogus... which is "is fundamentally a C# port of faker.js and inspired by FluentValidation's syntax sugar". We use it in our project and it fits perfect. You can generate real name, real countries, real phone numbers etc. An example from GitHub:...var testUsers = new Faker<User>() .CustomInst...

ef core - how to copy tables from one schema to other with many-to-many relationship?

You also need to use ...tenantContext.SaveChanges()... after you have added Roles and Permissions.Otherwise the added data will not be detected when you add ...RolePermissions... using EF core....foreach (var role in roles) { tenantContext.TenantRoles.Add(new Role { Name = role.Name, CanBeDeleted = role.CanBeDeleted }); } tenantContext.SaveChan...

EF Core One to One relationship on many tables allows duplicate entries

If you're entirely set on keeping your object models / data structure the same as it is above then a unique constraint across the two tables isnt really natively achievable....One possible in code solution (though its not particularly clean, so I would suggest restructuring your data over this, though that seems to be something you would like to av...

.net core C# use dynamic property name on EF Core Database first generated model class

You can do it via reflection for properties that exist on the object....C# has a feature called ...Indexers.... You could extend your code like this to allow for the behavior you are expecting.... public partial class UserDetails { public int? Level { get; set; } public string Unit { get; set; } public string Bio { get; ...

What is the difference between EF Core Database-First and EF Core Code-First approaches?

Database-First...DB-First is that you reverse engineer an existing database to create an Entity Framework model.Instead of designing the EDMX manually and generating the SQL script to create the Database, we build the latter and then generate the former using the Entity Framework Designer tool....Code-First...Code-First uses migrations to create th...

Fetch users list from 165 databases with 30 different DB schema using .NET CORE and EF

To query "165 databases with 30 different DB schema", what you face first is ...performance.... you need a revolutionary solution....I had an experience to handle ...super-heavy query... for a ...distributed... application:...when we send a request to a API(Let's simply call it ...GetUsersCount()...) , the API will simply send many sub-requests(it ...

EF Core 3.1 - how to do filtering based on parameters?

The problem starts with this line. IQueryable constructs an SQL query so this:... .Select(x => new BUViewModel(x)) ...Iqueryable can't call constructors. So to fix that do it manually.....Select(x=> new BUViewModel(){ Id = x.Id, Name = x.Name // etc }) ...But why is the constructor not working? Because y...