introduction to entity framework core
this is an introduction to entity framework core. entity framework core, also called ef core is a complete rewrite from the ground up. if you have any experience with previous versions of entity framework, you will find lot of familiar features.
text version of the video
https://csharp-video-tutorials.blogspot.com/2019/04/introduction-to-entity-framework-core.html
healthy diet is very important for both body and mind. we want to inspire you to cook and eat healthy. if you like aarvi kitchen recipes, please support by sharing, subscribing and liking.
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slides
https://csharp-video-tutorials.blogspot.com/2019/04/introduction-to-entity-framework-core_20.html
asp.net core text articles & slides
https://csharp-video-tutorials.blogspot.com/2019/01/aspnet-core-tutorial-for-beginners.html
asp.net core tutorial
https://www.youtube.com/playlist?list=pl6n9fhu94yhvkdruslaqsferml_jh4xmu
angular, javascript, jquery, dot net & sql playlists
https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd
what is ef core
ef core is an orm (object-relational mapper).
ef core is lightweight, extensible, and open source software. like .net core, ef core is also cross platform. it works on windows, mac os, and linux. ef core is microsoft’s official data access platform.
what is orm
orm stands for object-relational mapper and it enables developers to work with a database using business objects. as a developer we work with the application business objects and the orm generates the sql that the underlying database understands. in-short, an orm, eliminates the need for most of the data-access code that developers usually need to write.
why use an orm
let's understand, the use of an orm with an example. if we are developing an application to manage employees we would have classes like employee, department etc in our application code. these classes are called the domain classes.
without an orm like ef core, we have to write a lot of custom data access code to store and retrieve employee and department data from the underlying database.
for example to read, insert, update or delete data from the underlying database table we have to write code in the application to generate the required sql statements that the underlying database understands. also when the data is read from the database into our application, we again have to write custom code to map the database data to our model classes like employee, department etc. this is a very common task that we do almost in every application.
an orm like ef core can do all of this for us and saves a lot of time. it sits between our application code and the database. it eliminates the need for most of the custom data-access code that we usually have to write without an orm.
ef core code first approach
ef core supports both code first approach and database first approach. however, with the database first approach there is very limited support in ef core at the moment.
with the code first approach, we first create our application domain classes like employee, customer etc and a special class that derives from entity framework dbcontext class. based on these domain and dbcontext classes, ef core creates the database and relevant tables. out of the box, ef core uses it's default conventions to create the database and database tables. you can change these default conventions if you want to.
ef core database first approach
sometimes we may have an existing database. when we have a database and the database tables already, we use the database first approach. with the database first approach, ef core creates the dbcontext and domain classes based on the existing database schema.
ef core database providers
ef core supports many relational and even non relational databases. ef core is able to do this by using plug-in libraries called the database providers. these database providers are available as nuget packages.
list of ef core database providers
https://docs.microsoft.com/en-us/ef/core/providers/
a database provider, usually sits between ef core and the database it supports. the database provider contains the functionality specific to the database it supports. functionality that is common to all the databases is in the ef core component. functionality that is specific to a database, for example, microsoft sql server specific functionality is with-in the sql server provider for ef core.
we will discuss more about this provider model when we include support for sql server in our asp.net core application in our upcoming videos.
this is an introduction to entity framework core. entity framework core, also called ef core is a complete rewrite from the ground up. if you have any experience with previous versions of entity framework, you will find lot of familiar features. text version of the videohttps://csharp-video-tutorials.blogspot.com/2019/04/introduction-to-entity-framework-core.htmlhealthy diet is very important for both body and mind. we want to inspire you to cook and eat healthy. if you like aarvi kitchen recipes, please support by sharing, subscribing and liking.https://www.youtube.com/channel/uc7sewixm_yfamyonqcrgfwa/?sub_confirmation=1slideshttps://csharp-video-tutorials.blogspot.com/2019/04/introduction-to-entity-framework-core_20.htmlasp.net core text articles & slideshttps://csharp-video-tutorials.blogspot.com/2019/01/aspnet-core-tutorial-for-beginners.htmlasp.net core tutorialhttps://www.youtube.com/playlist?list=pl6n9fhu94yhvkdruslaqsferml_jh4xmuangular, javascript, jquery, dot net & sql playlistshttps://www.youtube.com/user/kudvenkat/playlists?view=1&sort=ddwhat is ef coreef core is an orm (object-relational mapper).ef core is lightweight, extensible, and open source software. like .net core, ef core is also cross platform. it works on windows, mac os, and linux. ef core is microsoft’s official data access platform.what is ormorm stands for object-relational mapper and it enables developers to work with a database using business objects. as a developer we work with the application business objects and the orm generates the sql that the underlying database understands. in-short, an orm, eliminates the need for most of the data-access code that developers usually need to write. why use an ormlet's understand, the use of an orm with an example. if we are developing an application to manage employees we would have classes like employee, department etc in our application code. these classes are called the domain classes. without an orm like ef core, we have to write a lot of custom data access code to store and retrieve employee and department data from the underlying database.for example to read, insert, update or delete data from the underlying database table we have to write code in the application to generate the required sql statements that the underlying database understands. also when the data is read from the database into our application, we again have to write custom code to map the database data to our model classes like employee, department etc. this is a very common task that we do almost in every application.an orm like ef core can do all of this for us and saves a lot of time. it sits between our application code and the database. it eliminates the need for most of the custom data-access code that we usually have to write without an orm.ef core code first approachef core supports both code first approach and database first approach. however, with the database first approach there is very limited support in ef core at the moment.with the code first approach, we first create our application domain classes like employee, customer etc and a special class that derives from entity framework dbcontext class. based on these domain and dbcontext classes, ef core creates the database and relevant tables. out of the box, ef core uses it's default conventions to create the database and database tables. you can change these default conventions if you want to.ef core database first approachsometimes we may have an existing database. when we have a database and the database tables already, we use the database first approach. with the database first approach, ef core creates the dbcontext and domain classes based on the existing database schema.ef core database providersef core supports many relational and even non relational databases. ef core is able to do this by using plug-in libraries called the database providers. these database providers are available as nuget packages. list of ef core database providershttps://docs.microsoft.com/en-us/ef/core/providers/a database provider, usually sits between ef core and the database it supports. the database provider contains the functionality specific to the database it supports. functionality that is common to all the databases is in the ef core component. functionality that is specific to a database, for example, microsoft sql server specific functionality is with-in the sql server provider for ef core. we will discuss more about this provider model when we include support for sql server in our asp.net core application in our upcoming videos. why use tag helpers asp net core image tag helper asp net core environment tag helper bootstrap navigation menu in asp net core application form tag helpers in asp net core asp net core model binding asp net core model validation select list validation in asp net core addsingleton vs addscoped vs addtransient introduction to entity framework core install entity framework core in visual studio dbcontext in entity framework core using sql server with entity framework core repository pattern in asp net core entity framework core migrations beginner blender anvil tutorial trailer blender intermediate modelling tutorial part 1 blender intermediate modelling tutorial part 2 boolean blender intermediate modelling tutorial part 3 sharpening edges blender intermediate modelling tutorial part 4 final touches blender intermediate uv unwrapping tutorial blender intermediate tutorial how to sculpt details how to bake perfect normals in blender tutorial texturing in blender intermediate tutorial part 1 texturing in blender intermediate tutorial part 2 texturing in blender intermediate tutorial part 3 final introduction to servlets 1 servlet and jsp tutorial eclipse setup and tour 2 servlet and jsp tutorial configure tomcat in eclipse 3 servlet and jsp tutorial eclipse and tomcat setup on windows 4 servlet and jsp tutorial creating web project in eclipse 5 servlet and jsp tutorial create servlet and web xml config 6 servlet and jsp tutorial get and post 7 servlet and jsp tutorial requestdispatcher calling a servlet from servlet httpservletrequest and httpservletresponse theory 8 servlet and jsp tutorial requestdispatcher and sendredirect theory 9 servlet and jsp tutorial sendredirect url rewriting 10 servlet and jsp tutorial httpsession cookie servletconfig and servletcontext servlet and jsp tutorial servlet annotation configuration servlet and jsp tutorial why jsp how jsp translated into servlets jsp to servlet conversion netbeans jsp tags scriptlet declaration directive expression jsp directive page include taglib implicit objects in jsp exception handling in jsp mvc using servlet and jsp jstl tutorial part 1 el jstl tutorial part 2 core tags jstl tutorial sql tags part 1 jstl tutorial sql tags part 2 jstl tutorial function tags servlet filter tutorial theory login using servlet and jsp login using servlet and jsp practical part 1 login using servlet and jsp how to prevent back button after logout part 2 login using servlet and jsp jdbc part 3 servlet jsp jdbc maven example sesame street how to make a california sushi roll cookie monster s foodie truck why use tag helpers asp net core image tag helper asp net core environment tag helper bootstrap navigation menu in asp net core application form tag helpers in asp net core asp net core model binding asp net core model validation select list validation in asp net core addsingleton vs addscoped vs addtransient introduction to entity framework core install entity framework core in visual studio dbcontext in entity framework core using sql server with entity framework core repository pattern in asp net core entity framework core migrations beginner blender anvil tutorial trailer blender intermediate modelling tutorial part 1 blender intermediate modelling tutorial part 2 boolean blender intermediate modelling tutorial part 3 sharpening edges blender intermediate modelling tutorial part 4 final touches blender intermediate uv unwrapping tutorial blender intermediate tutorial how to sculpt details how to bake perfect normals in blender tutorial texturing in blender intermediate tutorial part 1 texturing in blender intermediate tutorial part 2 texturing in blender intermediate tutorial part 3 final introduction to servlets 1 servlet and jsp tutorial eclipse setup and tour 2 servlet and jsp tutorial configure tomcat in eclipse 3 servlet and jsp tutorial eclipse and tomcat setup on windows 4 servlet and jsp tutorial creating web project in eclipse 5 servlet and jsp tutorial create servlet and web xml config 6 servlet and jsp tutorial get and post 7 servlet and jsp tutorial requestdispatcher calling a servlet from servlet httpservletrequest and httpservletresponse theory 8 servlet and jsp tutorial requestdispatcher and sendredirect theory 9 servlet and jsp tutorial sendredirect url rewriting 10 servlet and jsp tutorial httpsession cookie servletconfig and servletcontext servlet and jsp tutorial servlet annotation configuration servlet and jsp tutorial why jsp how jsp translated into servlets jsp to servlet conversion netbeans jsp tags scriptlet declaration directive expression jsp directive page include taglib implicit objects in jsp exception handling in jsp mvc using servlet and jsp jstl tutorial part 1 el jstl tutorial part 2 core tags jstl tutorial sql tags part 1 jstl tutorial sql tags part 2 jstl tutorial function tags servlet filter tutorial theory login using servlet and jsp login using servlet and jsp practical part 1 login using servlet and jsp how to prevent back button after logout part 2 login using servlet and jsp jdbc part 3 servlet jsp jdbc maven example sesame street how to make a california sushi roll cookie monster s foodie truck why use tag helpers asp net core image tag helper asp net core environment tag helper bootstrap navigation menu in asp net core application form tag helpers in asp net core asp net core model binding asp net core model validation select list validation in asp net core addsingleton vs addscoped vs addtransient introduction to entity framework core install entity framework core in visual studio dbcontext in entity framework core using sql server with entity framework core repository pattern in asp net core entity framework core migrations beginner blender anvil tutorial trailer blender intermediate modelling tutorial part 1 blender intermediate modelling tutorial part 2 boolean blender intermediate modelling tutorial part 3 sharpening edges blender intermediate modelling tutorial part 4 final touches blender intermediate uv unwrapping tutorial blender intermediate tutorial how to sculpt details how to bake perfect normals in blender tutorial texturing in blender intermediate tutorial part 1 texturing in blender intermediate tutorial part 2 texturing in blender intermediate tutorial part 3 final introduction to servlets 1 servlet and jsp tutorial eclipse setup and tour 2 servlet and jsp tutorial configure tomcat in eclipse 3 servlet and jsp tutorial eclipse and tomcat setup on windows 4 servlet and jsp tutorial creating web project in eclipse 5 servlet and jsp tutorial create servlet and web xml config 6 servlet and jsp tutorial get and post 7 servlet and jsp tutorial requestdispatcher calling a servlet from servlet httpservletrequest and httpservletresponse theory 8 servlet and jsp tutorial requestdispatcher and sendredirect theory 9 servlet and jsp tutorial sendredirect url rewriting 10 servlet and jsp tutorial httpsession cookie servletconfig and servletcontext servlet and jsp tutorial servlet annotation configuration servlet and jsp tutorial why jsp how jsp translated into servlets jsp to servlet conversion netbeans jsp tags scriptlet declaration directive expression jsp directive page include taglib implicit objects in jsp exception handling in jsp mvc using servlet and jsp jstl tutorial part 1 el jstl tutorial part 2 core tags jstl tutorial sql tags part 1 jstl tutorial sql tags part 2 jstl tutorial function tags servlet filter tutorial theory login using servlet and jsp login using servlet and jsp practical part 1 login using servlet and jsp how to prevent back button after logout part 2 login using servlet and jsp jdbc part 3 servlet jsp jdbc maven example sesame street how to make a california sushi roll cookie monster s foodie truck this is an introduction to entity framework core. entity framework core, also called ef core is a complete rewrite from the ground up. if you have any experience with previous versions of entity framework, you will find lot of familiar features.
text version of the video
https://csharp-video-tutorials.blogspot.com/2019/04/introduction-to-entity-framework-core.html
healthy diet is very important for both body and mind. we want to inspire you to cook and eat healthy. if you like aarvi kitchen recipes, please support by sharing, subscribing and liking.
https://www.youtube.com/channel/uc7sewixm_yfamyonqcrgfwa/?sub_confirmation=1
slides
https://csharp-video-tutorials.blogspot.com/2019/04/introduction-to-entity-framework-core_20.html
asp.net core text articles & slides
https://csharp-video-tutorials.blogspot.com/2019/01/aspnet-core-tutorial-for-beginners.html
asp.net core tutorial
https://www.youtube.com/playlist?list=pl6n9fhu94yhvkdruslaqsferml_jh4xmu
angular, javascript, jquery, dot net & sql playlists
https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd
what is ef core
ef core is an orm (object-relational mapper).
ef core is lightweight, extensible, and open source software. like .net core, ef core is also cross platform. it works on windows, mac os, and linux. ef core is microsoft’s official data access platform.
what is orm
orm stands for object-relational mapper and it enables developers to work with a database using business objects. as a developer we work with the application business objects and the orm generates the sql that the underlying database understands. in-short, an orm, eliminates the need for most of the data-access code that developers usually need to write.
why use an orm
let's understand, the use of an orm with an example. if we are developing an application to manage employees we would have classes like employee, department etc in our application code. these classes are called the domain classes.
without an orm like ef core, we have to write a lot of custom data access code to store and retrieve employee and department data from the underlying database.
for example to read, insert, update or delete data from the underlying database table we have to write code in the application to generate the required sql statements that the underlying database understands. also when the data is read from the database into our application, we again have to write custom code to map the database data to our model classes like employee, department etc. this is a very common task that we do almost in every application.
an orm like ef core can do all of this for us and saves a lot of time. it sits between our application code and the database. it eliminates the need for most of the custom data-access code that we usually have to write without an orm.
ef core code first approach
ef core supports both code first approach and database first approach. however, with the database first approach there is very limited support in ef core at the moment.
with the code first approach, we first create our application domain classes like employee, customer etc and a special class that derives from entity framework dbcontext class. based on these domain and dbcontext classes, ef core creates the database and relevant tables. out of the box, ef core uses it's default conventions to create the database and database tables. you can change these default conventions if you want to.
ef core database first approach
sometimes we may have an existing database. when we have a database and the database tables already, we use the database first approach. with the database first approach, ef core creates the dbcontext and domain classes based on the existing database schema.
ef core database providers
ef core supports many relational and even non relational databases. ef core is able to do this by using plug-in libraries called the database providers. these database providers are available as nuget packages.
list of ef core database providers
https://docs.microsoft.com/en-us/ef/core/providers/
a database provider, usually sits between ef core and the database it supports. the database provider contains the functionality specific to the database it supports. functionality that is common to all the databases is in the ef core component. functionality that is specific to a database, for example, microsoft sql server specific functionality is with-in the sql server provider for ef core.
we will discuss more about this provider model when we include support for sql server in our asp.net core application in our upcoming videos.