Since Oracle stores JSON data using standard SQL data types, all of the popular Oracle APIs can be used to load JSON documents into the database. JSON documents can come from a number of different sources. The IS JSON constraint is applied to the column PO_DOCUMENT, ensuring that the column can store only well formed JSON documents. The table has a column PO_DOCUMENT of type CLOB.
This statement creates a very simple table, J_PURCHASEORDER. PO_DOCUMENT CLOB CHECK (PO_DOCUMENT IS JSON) This first statement in this module creates a table which will be used to contain JSON documents. This constraint returns TRUE if the content of the column is well-formed, valid JSON and FALSE otherwise. In order to ensure that the content of the column is valid JSON data, a new constraint IS JSON, is provided that can be applied to a column. VARCHAR2 can be used where the size of the JSON document will never exceed 4K (32K in database where when extended VARCHAR support has been enabled.) Larger documents are stored using CLOB or BLOB data types. JSON documents are stored in the database using standard Oracle data types such as VARCHAR2, CLOB and BLOB. In Oracle there is no dedicated JSON data type. Storing JSON Documents in Oracle Database Create a simple table to store JSON documents Where TABLE_NAME in ( 'J_PURCHASEORDER', 'JSON_DUMP_CONTENTS','CITY_LOT_FEATURES')Īnd OWNER = SYS_CONTEXT('USERENV','CURRENT_USER') Įxecute immediate 'DROP TABLE "' || t.TABLE_NAME || '" PURGE' Select EMPLOYEE_ID as ID, 'DepartmentId' as KEY, to_char(DEPARTMENT_ID) as VALUE Select EMPLOYEE_ID as ID, 'ManagerId' as KEY, to_char(MANAGER_ID) as VALUE Select EMPLOYEE_ID as ID, 'Commision' as KEY, to_char(COMMISSION_PCT) as VALUE Select EMPLOYEE_ID as ID, 'Salary' as KEY, to_char(SALARY) as VALUE Select EMPLOYEE_ID as ID, 'JobId' as KEY, JOB_ID as VALUE Select EMPLOYEE_ID as ID, 'HireDate' as KEY, to_char(HIRE_DATE) as VALUE Select EMPLOYEE_ID as ID, 'TelephoneNumber' as KEY, PHONE_NUMBER as VALUE Select EMPLOYEE_ID as ID, 'EmailAddress' as KEY, EMAIL as VALUE Select EMPLOYEE_ID as ID, 'LastName' as KEY, LAST_NAME as VALUE Select EMPLOYEE_ID as ID, 'FirstName' as KEY, FIRST_NAME as VALUE Select EMPLOYEE_ID as ID, 'EmployeeId' as KEY, to_char(EMPLOYEE_ID) as VALUE They can also be used to reset the tutorial if you want to start again at any point create or replace view EMPLOYEE_KEY_VALUE Please run the following statements to set up the Tutorial.
GeoJSON is a popular way of embedding spatial information, such as Oracle Database includes support for using Oracle Spatial to index and Query to be transformed into one or more JSON documents.ĥ. Oracle Database includes new SQL operators that allow the result of a SQL
ORACLE JSON QUERY EXAMPLE STACKOVERFLOW UPDATE
Use JSON path expressions to access and update the contents of a JSON document.Ĥ. Oracle Database includes a new PL/SQL document API that makes it easy to Generate JSON schema documents and relational views that reflect the structure of the JSONĬontent that has been stored in the database.ģ. The JSON documents they have stored in Oracle Database. The dataguide allows developers to generate and query metadata that describes In-Memory option will be able to use its capabilities to accelerate SQL queries over JSONĢ. Customers who are licensed for the Oracle Database Integration with Oracle Database In-Memory. There are five major areas of new JSON related functionality in recent releases.ġ. These releases add significant new functionality for working with JSON documents stored in the database. This Tutorial introduces the new JSON-related extensions to SQL and PL/SQL that have been added since Oracle Database 12c Release 1. Description Many new features have been added to support JSON development in recent releases.Tutorial SQL/JSON Features in Oracle Database.
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