==MySQL=====MySQL에서 마이그레이션 히스토리 테이블 생성===다음 에러메시지가 출력되는 경우에====에러메시지==== EFMigrationsHistory' doesn't exist ====쿼리문===다음 쿼리문을 사용하여 테이블을 생성한다.<syntaxhighlight lang="sql">

  MigrationId varchar(150) NOT NULL,  ProductVersion varchar(32) NOT NULL,  CONSTRAINT PK___EFMigrationsHistory PRIMARY KEY (MigrationId) 

===MySQL Identity 적용===

===PostgreSQL모델=== ===컨트롤러=== ===Lazor===

==dotnet명령어====nuget package=실행===Install-Package Npgsql.EntityFrameworkCore.PostgreSQL $ /[[usr]]/bin/dotnet run

====connection string==[[Service|서비스]] 등록 (for linux)=="User ID=damienbod;Password=1234;Host=localhost;Port=5432;Database=damienbod;Pooling참고 사이트: https://docs.microsoft.com/ko-kr/aspnet/core/host-and-deploy/linux-nginx?view=true;"aspnetcore-2.2

===마이그레이션 명령서비스 정의 파일 생성=== $ sudo nano /etc/systemd/system/kestrel-helloapp.service

===서비스 파일 정의=복원==<syntaxhighlight lang="ini">[Unit]Description=PM> Update-Database 20161012160749_AddedOrderToCourseExample .NET Web API App running on Ubuntu

[Service]WorkingDirectory=/var/www/helloappExecStart=/usr/bin/dotnet /var/www/helloapp/helloapp.dllRestart= 모델 always# Restart service after 10 seconds if the dotnet service crashes:RestartSec=10KillSignal=SIGINTSyslogIdentifier=dotnet-exampleUser=www-dataEnvironment=ASPNETCORE_ENVIRONMENT=ProductionEnvironment=DOTNET_PRINT_TELEMETRY_MESSAGE=false

[Install]WantedBy=== 컨트롤러 ===multi-user.target</syntaxhighlight><br />