21.21 INITIALIZE_CLOB_OUTPUT Procedure

This procedure initializes the output interface to write to a temporary CLOB. The default is to write to SYS.HTP. If using CLOB output, you should call FREE_OUTPUT() at the end to free the CLOB.

Syntax

APEX_JSON.INITIALIZE_CLOB_OUTPUT (
    p_dur         in pls_integer default sys.dbms_lob.call,
    p_cache       in boolean     default true,
    p_indent      in pls_integer default null );

Parameters

Table 21-25 INITIALIZE_CLOB_OUTPUT Procedure Parameters

Parameter	Description
p_dur	Duration of the temporary CLOB. this can be DBMS_LOB.SESSION or DBMS_LOB.CALL (the default).
p_cache	Specifies if the lob should be read into buffer cache or not.
p_indent	Indent level. Defaults to 2 if debug is turned on, 0 otherwise.

Example

This example configures APEX_JSON for CLOB output, generate JSON, print the CLOB with DBMS_OUTPUT, and finally free the CLOB.

BEGIN
  apex_json.initialize_clob_output;

  apex_json.open_object;
  apex_json.write('hello', 'world');
  apex_json.close_object;

  dbms_output.put_line(apex_json.get_clob_output);

 apex_json.free_output;
 END;