![]() Updating JSON with SaveChangesĮF7’s change tracking finds the smallest single part of a JSON document that needs to be updated and sends SQL commands to efficiently update the column appropriately. Notice that the JSON_VALUE and JSON_QUERY are used to query into parts of the JSON document. Using LINQ to query JSONĬonsider the following LINQ query: var postsWithViews = await (post => post.Metadata!.Views > 3000)ĮF7 translates this query into the following SQL: SELECT. EF7 also supports saving changes to the JSON documents. Normal LINQ queries can be used on the aggregates, and these are translated to the appropriate query constructs needed to drill into the JSON. This support allows mapping of aggregates built from. JSON columns allow relational databases to take on some of the characteristics of document databases, creating a useful hybrid between the two they can also be used to eliminate joins from queries, improving performance.ĮF7 contains provider-agnostic support for JSON columns, with an implementation for SQL Server. This allows, for example, filtering and sorting by properties inside the documents, as well as projection of properties out of the documents into results. Most relational databases support columns that contain JSON documents, and the JSON in these columns can be drilled into with queries. All the code is available in runnable samples on GitHub. In total, EF7 ships with 167 enhancements and new features, both large and small, as well as 171 bug fixes.įull details of all new EF7 features can be found in the What’s New in EF7 documentation. The following sections give an overview of the major enhancements in EF7. See Porting from EF6 to EF Core for more information.ĮF7 is released under the standard support policy, but works on both the long-term-support. ![]() As such, we encourage people to upgrade existing classic EF applications to use EF7 where possible. EF Core 7 contains many features that help in porting “classic” EF6 applications to use EF7. Entity Framework Core (EF Core) 7 is available on NuGet today!ĮF Core 7 is the successor to EF Core 6, and can be referred to as EF7 for brevity.
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