Restful service unable to insert data using PL/SQL.

Question

Hi all,
Am running: AL 2.01 standalone mode on OEL 4.8 in VM box A.
Oracle database 10.2.0.4 with Apex 4.2.0.00.27 on OEL4.8 in VM box B.
Able to performed oracle.example.hr Restful services with no problem.
Unable to insert data using AL 2.0.1 but works on AL 1.1.4.
which uses the following table (under schema: scott):
create table json_demo ( title varchar2(20), description varchar2(1000) );
grant all on json_demo to apex_public_user; and below procedure ( scott's schema ):
CREATE OR REPLACE
PROCEDURE post(
    p_url     IN VARCHAR2,
    p_message IN VARCHAR2,
    p_response OUT VARCHAR2)
IS
  l_end_loop BOOLEAN := false;
  l_http_req utl_http.req;
  l_http_resp utl_http.resp;
  l_buffer CLOB;
  l_data       VARCHAR2(20000); 
  C_USER_AGENT CONSTANT VARCHAR2(4000) := 'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)';
BEGIN
  -- source: http://awads.net/wp/2005/11/30/http-post-from-inside-oracle/
  -- Ask UTL_HTTP not to raise an exception for 4xx and 5xx status codes,
  -- rather than just returning the text of the error page.
  utl_http.set_response_error_check(false);
  -- Begin the post request
  l_http_req := utl_http.begin_request (p_url, 'POST', utl_http.HTTP_VERSION_1_1);
  -- Set the HTTP request headers
  utl_http.set_header(l_http_req, 'User-Agent', C_USER_AGENT);
  utl_http.set_header(l_http_req, 'content-type', 'application/json;charset=UTF-8');
  utl_http.set_header(l_http_req, 'content-length', LENGTH(p_message));
  -- Write the data to the body of the HTTP request
  utl_http.write_text(l_http_req, p_message);
  -- Process the request and get the response.
  l_http_resp := utl_http.get_response (l_http_req);
  dbms_output.put_line ('status code: ' || l_http_resp.status_code);
  dbms_output.put_line ('reason phrase: ' || l_http_resp.reason_phrase);
  LOOP
    EXIT
  WHEN l_end_loop;
    BEGIN
      utl_http.read_line(l_http_resp, l_buffer, true);
      IF(l_buffer IS NOT NULL AND (LENGTH(l_buffer)>0)) THEN
        l_data    := l_data||l_buffer;
      END IF;
    EXCEPTION
    WHEN utl_http.end_of_body THEN
      l_end_loop := true;
    END;
  END LOOP;
  dbms_output.put_line(l_data);
  p_response:= l_data;
  -- Look for client-side error and report it.
  IF (l_http_resp.status_code >= 400) AND (l_http_resp.status_code <= 499) THEN
    dbms_output.put_line('Check the URL.');
    utl_http.end_response(l_http_resp);
    -- Look for server-side error and report it.
  elsif (l_http_resp.status_code >= 500) AND (l_http_resp.status_code <= 599) THEN
    dbms_output.put_line('Check if the Web site is up.');
    utl_http.end_response(l_http_resp);
    RETURN;
  END IF;
  utl_http.end_response (l_http_resp);
EXCEPTION
WHEN OTHERS THEN
  dbms_output.put_line (sqlerrm);
  raise;
END; and executing in sqldeveloper 3.2.20.09 when connecting directly to box B as scott:
SET serveroutput ON
DECLARE
  l_url      VARCHAR2(200)   :='http://MY_IP:8585/apex/demo';
  l_json     VARCHAR2(20000) := '{"title":"thetitle","description":"thedescription"}';
  l_response VARCHAR2(30000);
BEGIN
  post( p_url => l_url, p_message =>l_json, p_response => l_response);
END;which resulted in :
anonymous block completed
status code: 200
reason phrase: OK
with data inserted. Setup using 2.0.1
   Workspace : wsdemo
RESTful Service Module:  demo/
          URI Template:      test
                Method:  POST
           Source Type:  PL/SQLand executing in sqldeveloper 3.2.20.09 when connecting directly to box B as scott:
SET serveroutput ON
DECLARE
  l_url      VARCHAR2(200)   :='http://MY_IP:8585//apex/wsdemo/demo/test';
  l_json     VARCHAR2(20000) := '{"title":"thetitle","description":"thedescription"}';
  l_response VARCHAR2(30000);
BEGIN
  post( p_url => l_url, p_message =>l_json, p_response => l_response);
END;which resulted in :
status code: 500
reason phrase: Internal Server Error
Listener's log:
Request Path passes syntax validation
Mapping request to database pool: PoolMap [_poolName=apex, _regex=null, _workspaceIdentifier=WSDEMO, _failed=false, _lastUpdate=1364313600000, _template=/wsdemo/, _type=BASE_PATH]
Applied database connection info
Attempting to process with PL/SQL Gateway
Not processed as PL/SQL Gateway request
Attempting to process as a RESTful Service
demo/test matches: demo/test score: 0
Choosing: oracle.dbtools.rt.resource.templates.jdbc.JDBCResourceTemplateDispatcher as current candidate with score: Score [handle=JDBCURITemplate [scopeId=null, templateId=2648625079503782|2797815111031405, uriTemplate=demo/test], score=0, scope=SecurityConfig [constraint=none, realm=NONE, logonConfig=LogonConfig [logonForm=null, logonFailed=null]], originsAllowed=[], corsEnabled=true]
Determining if request can be dispatched as a Tenanted RESTful Service
Request path has one path segment, continuing processing
Tenant Principal already established, cannot dispatch
Chose oracle.dbtools.rt.resource.templates.jdbc.JDBCResourceTemplateDispatcher as the final candidate with score: Score [handle=JDBCURITemplate [scopeId=null, templateId=2648625079503782|2797815111031405, uriTemplate=demo/test], score=0, scope=SecurityConfig [constraint=none, realm=NONE, logonConfig=LogonConfig [logonForm=null, logonFailed=null]], originsAllowed=[], corsEnabled=true] for: POST demo/test
demo/test is a public resource
Using generator: oracle.dbtools.rt.plsql.AnonymousBlockGenerator
Performing JDBC request as: SCOTT
Mar 28, 2013 1:29:28 PM oracle.dbtools.common.jdbc.JDBCCallImpl execute
INFO: Error occurred during execution of: [CALL, begin
insert into scott.json_demo values(/*in:title*/?,/*in:description*/?);
end;, [title, in, class oracle.dbtools.common.stmt.UnknownParameterType], [description, in, class oracle.dbtools.common.stmt.UnknownParameterType]]with values: [thetitle, thedescription]
Mar 28, 2013 1:29:28 PM oracle.dbtools.common.jdbc.JDBCCallImpl execute
INFO: ORA-06550: line 1, column 6:
PLS-00103: Encountered the symbol "" when expecting one of the following:
   begin case declare exit for goto if loop mod null pragma
   raise return select update while with <an identifier>
   <a double-quoted delimited-identifier> <a bind variable> <<
   close current delete fetch lock insert open rollback
   savepoint set sql execute commit forall merge pipe
The symbol "" was ignored.
ORA-06550: line 2, column 74:
PLS-00103: Encountered the symbol "" when expecting one of the following:
   begin case declare end exception exit for goto if loop mod
   null pragma raise return select update while with
   <an identifier> <a double-quoted delimited-id
java.sql.SQLException: ORA-06550: line 1, column 6:
PLS-00103: Encountered the symbol "" when expecting one of the following:
   begin case declare exit for goto if loop mod null pragma
   raise return select update while with <an identifier>
   <a double-quoted delimited-identifier> <a bind variable> <<
   close current delete fetch lock insert open rollback
   savepoint set sql execute commit forall merge pipe
The symbol "" was ignored.
ORA-06550: line 2, column 74:
PLS-00103: Encountered the symbol "" when expecting one of the following:
   begin case declare end exception exit for goto if loop mod
   null pragma raise return select update while with
   <an identifier> <a double-quoted delimited-id
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:447)
        at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:396)
        at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:879)
        at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:505)
        at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:223)
        at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:531)
        at oracle.jdbc.driver.T4CCallableStatement.doOall8(T4CCallableStatement.java:205)
        at oracle.jdbc.driver.T4CCallableStatement.executeForRows(T4CCallableStatement.java:1043)
        at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1336)
        at oracle.jdbc.driver.OraclePreparedStatement.executeInternal(OraclePreparedStatement.java:3612)
        at oracle.jdbc.driver.OraclePreparedStatement.execute(OraclePreparedStatement.java:3713)
        at oracle.jdbc.driver.OracleCallableStatement.execute(OracleCallableStatement.java:4755)
        at oracle.jdbc.driver.OraclePreparedStatementWrapper.execute(OraclePreparedStatementWrapper.java:1378)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.ucp.jdbc.proxy.StatementProxyFactory.invoke(StatementProxyFactory.java:242)
        at oracle.ucp.jdbc.proxy.PreparedStatementProxyFactory.invoke(PreparedStatementProxyFactory.java:124)
        at oracle.ucp.jdbc.proxy.CallableStatementProxyFactory.invoke(CallableStatementProxyFactory.java:101)
        at $Proxy46.execute(Unknown Source)
        at oracle.dbtools.common.jdbc.JDBCCallImpl.execute(JDBCCallImpl.java:44)
        at oracle.dbtools.rt.plsql.AnonymousBlockGenerator.generate(AnonymousBlockGenerator.java:176)
        at oracle.dbtools.rt.resource.templates.v2.ResourceTemplatesDispatcher$HttpResourceGenerator.response(ResourceTemplatesDispatcher.java:309)
        at oracle.dbtools.rt.web.RequestDispatchers.dispatch(RequestDispatchers.java:88)
        at oracle.dbtools.rt.web.HttpEndpointBase.restfulServices(HttpEndpointBase.java:412)
        at oracle.dbtools.rt.web.HttpEndpointBase.service(HttpEndpointBase.java:162)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
        at com.sun.grizzly.http.servlet.ServletAdapter$FilterChainImpl.doFilter(ServletAdapter.java:1059)
        at com.sun.grizzly.http.servlet.ServletAdapter$FilterChainImpl.invokeFilterChain(ServletAdapter.java:999)
        at com.sun.grizzly.http.servlet.ServletAdapter.doService(ServletAdapter.java:434)
        at oracle.dbtools.standalone.SecureServletAdapter.doService(SecureServletAdapter.java:65)
        at com.sun.grizzly.http.servlet.ServletAdapter.service(ServletAdapter.java:379)
        at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
        at com.sun.grizzly.tcp.http11.GrizzlyAdapterChain.service(GrizzlyAdapterChain.java:196)
        at com.sun.grizzly.tcp.http11.GrizzlyAdapter.service(GrizzlyAdapter.java:179)
        at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:849)
        at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:746)
        at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1045)
        at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:228)
        at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
        at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
        at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
        at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
        at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
        at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
        at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
        at java.lang.Thread.run(Thread.java:662)
Error during evaluation of resource template: ORA-06550: line 1, column 6:
PLS-00103: Encountered the symbol "" when expecting one of the following:
   begin case declare exit for goto if loop mod null pragma
   raise return select update while with <an identifier>
   <a double-quoted delimited-identifier> <a bind variable> <<
   close current delete fetch lock insert open rollback
   savepoint set sql execute commit forall merge pipe
The symbol "" was ignored.
ORA-06550: line 2, column 74:
PLS-00103: Encountered the symbol "" when expecting one of the following:
   begin case declare end exception exit for goto if loop mod
   null pragma raise return select update while with
   <an identifier> <a double-quoted delimited-idPlease advise.
Regards
Zack

Answer 1

Zack.L wrote:
Hi Andy,
Sorry, forgot to post the Source that's use by both AL1.1.4 and AL2.0.1.
Source
begin
insert into scott.json_demo values(:title,:description);
end;
it's failing during the insert?
Yes, it failed during insert using AL2.0.1.
So the above statement produces the following error message:
The symbol "" was ignored.
ORA-06550: line 2, column 74:
PLS-00103: Encountered the symbol "" when expecting one of the following:
begin case declare end exception exit for goto if loop mod
null pragma raise return select update while with
<an identifier> <a double-quoted delimited-idThis suggests to me that an unprintable character (notice how there is nothing between the double quotes - "") has worked its way into your PL/SQL Handler. Note how the error is reported to be a column 74 on line 2, yet line 2 of the above block should only have 58 characters, so at a pure guess somehow there's extra whitespace on line 2, that is confusing the PL/SQL compiler, I suggest re-typing the PL/SQL handler manually and seeing if that cures the problem.