15.42 WRITE Procedure Signature 13

This procedure writes an attribute where the value is an array that contains all rows that the cursor returns. Each row is a separate object.

If the query contains object type, collection, or cursor columns, the procedure uses write(p_name,<xmltype>). See "WRITE Procedure Signature 14". Otherwise, it uses DBMS_SQL to fetch rows and the write() procedures for the appropriate column data types for output. If the column type is varchar2 and the uppercase value is 'TRUE' or 'FALSE', it generates boolean values.

Syntax

APEX_JSON.WRITE (
    p_name        IN VARCHAR2,
    p_cursor      IN OUT NOCOPY sys_refcursor );

Parameters

Example

This example writes an array containing JSON objects for departments 10 and 20, as an object member attribute.

DECLARE
  c sys_refcursor;
BEGIN
  open c for select deptno,
                    dname,
                    cursor(select empno,
                                  ename
                             from emp e
                            where e.deptno=d.deptno) emps
               from dept d;
  apex_json.open_object;
  apex_json. write('departments', c);
  apex_json.close_object;
END;
 
{ "departments":[
      {"DEPTNO":10,
       "DNAME":"ACCOUNTING",
       "EMPS":[{"EMPNO":7839,"ENAME":"KING"}]},
      ...
     ,{"DEPTNO":40,"DNAME":"OPERATIONS","EMPS":null}] }