If the migration file shows no changes to the database...nothing in the Up or Down methods (pictured below), does this mean that no changes are occurring in the database-update step?
Put another way...
Can changes occur as a result of the update-database step that are not reflected in the migration file...Up and Down methods show no changes?
In the example below, are changes occurring in the update-database step that are not reflected in the migration file?
Example:
In the Migrations step, the migration shows no changes to the database (below).
using Microsoft.EntityFrameworkCore.Migrations;
#nullable disable
namespace AuthenticationTutorial.Data.Migrations
{
public partial class ScaffoldIdentity : Migration
{
protected override void Up(MigrationBuilder migrationBuilder)
{
}
protected override void Down(MigrationBuilder migrationBuilder)
{
}
}
}
the update-database shows the following....
PM> update-database
Build started...
Build succeeded.
Microsoft.EntityFrameworkCore.Infrastructure[10403]
Entity Framework Core 6.0.15 initialized 'ApplicationDbContext' using provider 'Microsoft.EntityFrameworkCore.SqlServer:6.0.15' with options: None
Microsoft.EntityFrameworkCore.Database.Command[20101]
Executed DbCommand (14ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
SELECT 1
Microsoft.EntityFrameworkCore.Database.Command[20101]
Executed DbCommand (9ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
SELECT OBJECT_ID(N'[__EFMigrationsHistory]');
Microsoft.EntityFrameworkCore.Database.Command[20101]
Executed DbCommand (1ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
SELECT 1
Microsoft.EntityFrameworkCore.Database.Command[20101]
Executed DbCommand (0ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
SELECT OBJECT_ID(N'[__EFMigrationsHistory]');
Microsoft.EntityFrameworkCore.Database.Command[20101]
Executed DbCommand (2ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
SELECT [MigrationId], [ProductVersion]
FROM [__EFMigrationsHistory]
ORDER BY [MigrationId];
Microsoft.EntityFrameworkCore.Migrations[20402]
Applying migration '20230419140600_ScaffoldIdentity'.
Applying migration '20230419140600_ScaffoldIdentity'.
Microsoft.EntityFrameworkCore.Database.Command[20101]
Executed DbCommand (1ms) [Parameters=[], CommandType='Text', CommandTimeout='30']
INSERT INTO [__EFMigrationsHistory] ([MigrationId], [ProductVersion])
VALUES (N'20230419140600_ScaffoldIdentity', N'6.0.15');
Done.
