“JRDVIEW” is the JSON Relational Duality View being updated in the example below
Oracle 19c json query example how to#
Here's a code snippet of how to perform these JSON updates and deletes. However, the default updates and deletes require some custom SQL with parameter binds to make these JSON data changes. When saving changes back to the Oracle Database from DataSet, the default generated OracleCommandBuilder insert operations will successfully complete. Oracle JSON data can also be consumed and operated in. NET data management needs to occur beyond treating the data as a string consisting of JSON in. With JSON Relational Duality, ODP.NET retrieves the data with OracleDataReader GetValue(s) or GetOracleValue(s) methods, but not GetString nor GetOracleString.įor the ODP.NET developer, the data type conversion and changes are transparent. It fetches JSON data as a BLOB data type, then converts it to a string in.
ODP.NET 19c uses an earlier implementation that does not include this enumeration value. NET string or OracleString data type when parameters are bound with the OracleDbType.Json enumeration value. With 21c and higher, ODP.NET can retrieve this JSON data as a. ODP.NET supports the feature starting with release 19c. ODP.NET and JSON Relational Duality ViewsĪll ODP.NET provider types (core, managed, and unmanaged) support using JSON Relational Duality Views. To learn more about the feature, refer to the Oracle Database JSON-Relational Duality Developer's Guide Unmanaged ODP.NET does not have a requirement for. NET Core 3.1 and higher does automatically include this assembly with the. ODP.NET does not add the package as a dependency itself. Managed ODP.NET and ODP.NET Core JSON features require the assembly be included as a project dependency. In DataSet, the Oracle JSON type is converted to and stored as either a. Oracle Database will then implicitly encode to and decode from OSON to the desired data type format instead of the client in these cases. NET data types or not use the OracleDbType.Json enumeration value.
This enumeration value directs ODP.NET to perform decoding from and encoding to the native Oracle Database JSON binary format, OSON, on the client side, offloading the task from the server side.Īlternatively, JSON data can be bound as parameters to other ODP.NET and. NET string or OracleString, it can be bound as a parameter using the OracleDbType.Json enumeration value. In ODP.NET, the database JSON data type can be retrieved or passed to the database.
Oracle 19c json query example drivers#
ODP.NET Core, managed, and unmanaged drivers support this native JSON data type starting with version 21. Oracle Database 21c adds a native JavaScript Object Notation (JSON) data type.
0 kommentar(er)
