data_structures.sql

Author: witold-swierzy

data-platform/autonomous-database/autonomous-json/oracle23ai-json-views-support/views_definitions.sql

@@ -0,0 +1,35 @@
+drop view empview;
+drop view deptview;
+drop table departments cascade constraints;
+drop table employees cascade constraints;
+
+create table departments
+as
+select *
+from hr.departments;
+
+create table employees
+as
+select *
+from hr.employees;
+
+alter table departments add primary key(department_id);
+alter table employees add primary key(employee_id);
+
+create or replace json collection view empview 
+as
+select json{'_id' : employee_id,
+            last_name,
+            hire_date,
+            salary}
+from employees;
+
+select *
+from user_json_collections;
+
+create or replace json relational duality view deptview as
+select json {'_id' : department_id,
+             'dname'   : department_name,
+             'location' : location_id}
+from departments with insert update delete;
+