Database as Web Services Provider?

Hello!
Would you please forgive me my silly question but...
My customer has purchased and is using Oracle RDBMS 10g.
Now the customer wants the database to be accessible by web services clients.
The customer thinks that this can be done with already purchased RDBMS (without Oracle's Application Server). The customer cites Oracle: "Database as Web Services Provider: Database operations and data retrieval are executed through Web Services mechanisms" (http://www.oracle.com/technology/tech/webservices/database.html).
However, in my honest opinion the customer MUST install some web server. if the customer is especially insterested in Oracle's solutions, then it has to (additionally to already purchased RDBMS) buy either Oracle Application Server or WebLogic.
Who is right?
Sincerely Yours,
Michail

Michail,
For DB 10g, you are right - the solution is to use PL/SQL Web Services for which an OracleAS/OC4J server is essential.
For DB 11g, both you & your customer are right. In addition to the above like 10g, there is a new feature in 11g called Native XML DB Web Services within the DB which does not require any Web Server or AS. See http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28369/xdb_web_services.htm
HTH,
Yogesh

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Hello,
In this video, i don't see any info about SQL OR ORACLE connector. It is simply about rest web service which can be used anywhere (with infopath, external list etc). As per my knowledge, by default there is no rest web service available in SP to connect
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Database Native web services - load balancing, Instrumentation , security

Hello –
I’m proposing use of Database Native web service in our company. Our architects are asking following questions so appreciate your help
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Hi
We've recently begun using Native Web Services, intending to roll out this approach across the enterprise, but we've encountered 2 significant problems so far, which you may want to consider before proceeding ...
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ORA-31050:Access denied when trying enabling the database-native Web servic

Dear all,
I'm trying to follow the instruction of OBE about "Using Oracle XML DB Web Services for Service-Oriented Architecture " as this url http://st-curriculum.oracle.com/obe/db/11g/r1/prod/datamgmt/xmldb2_b/xmldb2_b.htm#http .
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Anyway, I got the following error.
ORA-31050: Access denied
ORA-06512: at "XDB.DBMS_XDB", line 528
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I found that this procedure was created on system schema but the problem occur when I tried to call ADDSERVLETMAPPING procedure.
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set pagesize 100
set linesize 132
set long 20000
set echo on
-- conn sys/oracle as sysdba
create or replace procedure addServletMapping (pattern varchar2,
servletname varchar2,
dispname varchar2,
servletclass varchar2,
servletschema varchar2,
language varchar2,
description varchar2,
securityRole xmltype) as
xdbconfig xmltype;
begin
xdbconfig := dbms_xdb.cfg_get();
select deleteXML
xdbconfig,
'/xdbconfig/sysconfig/protocolconfig/httpconfig/webappconfig/servletconfig/servlet-list/servlet[servlet-name="' || servletname || '"]'
into xdbconfig
from dual;
if (language = 'C') then
select insertChildXML
xdbconfig,
'/xdbconfig/sysconfig/protocolconfig/httpconfig/webappconfig/servletconfig/servlet-list',
'servlet',
xmlElement
"servlet",
xmlAttributes('http://xmlns.oracle.com/xdb/xdbconfig.xsd' as "xmlns"),
xmlForest
servletname as "servlet-name",
language as "servlet-language",
dispname as "display-name",
description as "description"
securityRole
into xdbconfig
from dual;
else
select insertChildXML
xdbconfig,
'/xdbconfig/sysconfig/protocolconfig/httpconfig/webappconfig/servletconfig/servlet-list',
'servlet',
xmlElement
"servlet",
xmlAttributes('http://xmlns.oracle.com/xdb/xdbconfig.xsd' as "xmlns"),
xmlForest
servletname as "servlet-name",
language as "servlet-language",
dispname as "display-name",
description as "description",
servletclass as "servlet-class",
servletschema as "servlet-schema"
into xdbconfig
from dual;
end if;
select deleteXML
xdbconfig,
'/xdbconfig/sysconfig/protocolconfig/httpconfig/webappconfig/servletconfig/servlet-mappings/servlet-mapping[servlet-name="' || servletname || '"]'
into xdbconfig
from dual;
select insertChildXML
xdbconfig,
'/xdbconfig/sysconfig/protocolconfig/httpconfig/webappconfig/servletconfig/servlet-mappings',
'servlet-mapping',
xmltype
'<servlet-mapping xmlns="http://xmlns.oracle.com/xdb/xdbconfig.xsd">
<servlet-pattern>'||pattern||'</servlet-pattern>
<servlet-name>'||servletname||'</servlet-name>
</servlet-mapping>'
into xdbconfig
from dual;
xdb.dbms_xdb.cfg_update(xdbconfig);
end;
call addServletMapping(
'/orawsv/*',
'orawsv',
'Oracle Query Web Service',
null,
null,
'C',
'Web Services Servlet',
xmltype(
'<security-role-ref>
<role-name>XDB_WEBSERVICES</role-name>
<role-link>XDB_WEBSERVICES</role-link>
</security-role-ref>'
call addServletMapping(
'/orawsdl/*',
'orawsdl',
'Oracle WSDLs',
null,
null,
'C',
'WSDL Servlet',
xmltype(
'<security-role-ref>
<role-name>XDB_WEBSERVICES</role-name>
<role-link>XDB_WEBSERVICES</role-link>
</security-role-ref>'
--grant XDB_WEBSERVICES to oe
grant XDB_WEBSERVICES to TESTDB
-- For 11g only
--grant XDB_WEBSERVICES_OVER_HTTP to oe
grant XDB_WEBSERVICES_OVER_HTTP to TESTDB
--grant XDB_WEBSERVICES_WITH_PUBLIC to oe
grant XDB_WEBSERVICES_WITH_PUBLIC to TESTDB
-- Clean up afterward
drop procedure addServletMapping
Regards,
Zenoni
Edited by: zenoni on Jan 28, 2011 10:18 AM

Test if you can access the generic WSDL using a browser
http://server:port/orawsv?wsdlYou should get prompted for a username and password. If you provide the username and password of a database user who was been granted the Web Services Roles you should see the query service WSDL
<definitions name="orawsv" targetNamespace="http://xmlns.oracle.com/orawsv"
 xmlns="http://schemas.xmlsoap.org/wsdl/"
 xmlns:tns="http://xmlns.oracle.com/orawsv"
 xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
 xmlns:xsd="http://www.w3.org/2001/XMLSchema"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://schemas.xmlsoap.org/wsdl/ http://schemas.xmlsoap.org/wsdl/">
<types>
<xsd:schema
 targetNamespace="http://xmlns.oracle.com/orawsv"
 elementFormDefault="qualified">
 <xsd:element name="query">
 <xsd:complexType>
 <xsd:sequence>
 <xsd:element name="DDL_text" type="xsd:string"
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 <xsd:element name="query_text">
 <xsd:complexType>
 <xsd:simpleContent>
 <xsd:extension base="xsd:string">
 <xsd:attribute name="type">
 <xsd:simpleType>
 <xsd:restriction base="xsd:NMTOKEN">
 <xsd:enumeration value="SQL" />
 <xsd:enumeration value="XQUERY" />
 </xsd:restriction>
 </xsd:simpleType>
 </xsd:attribute>
 </xsd:extension>
 </xsd:simpleContent>
 </xsd:complexType>
 </xsd:element>
 <xsd:choice minOccurs="0" maxOccurs="unbounded">
 <xsd:element name="bind">
 <xsd:complexType>
 <xsd:simpleContent>
 <xsd:extension base="xsd:string">
 <xsd:attribute name="name" type="xsd:string" />
 </xsd:extension>
 </xsd:simpleContent>
 </xsd:complexType>
 </xsd:element>
 <xsd:element name="bindXML">
 <xsd:complexType>
 <xsd:sequence>
 <xsd:any/>
 </xsd:sequence>
 </xsd:complexType>
 </xsd:element>
 </xsd:choice>
 <xsd:element name="null_handling" minOccurs="0">
 <xsd:simpleType>
 <xsd:restriction base="xsd:NMTOKEN">
 <xsd:enumeration value="DROP_NULLS" />
 <xsd:enumeration value="NULL_ATTR" />
 <xsd:enumeration value="EMPTY_TAG" />
 </xsd:restriction>
 </xsd:simpleType>
 </xsd:element>
 <xsd:element name="max_rows" type="xsd:positiveInteger" minOccurs="0"/>
 <xsd:element name="skip_rows" type="xsd:positiveInteger" minOccurs="0"/>
 <xsd:element name="pretty_print" type="xsd:boolean" minOccurs="0"/>
 <xsd:element name="indentation_width" type="xsd:positiveInteger" minOccurs="0"/>
 <xsd:element name="rowset_tag" type="xsd:string" minOccurs="0"/>
 <xsd:element name="row_tag" type="xsd:string" minOccurs="0"/>
 <xsd:element name="item_tags_for_coll" type="xsd:boolean" minOccurs="0"/>
 </xsd:sequence>
 </xsd:complexType>
 </xsd:element>
 <xsd:element name="queryOut">
 <xsd:complexType>
 <xsd:sequence>
 <xsd:any/>
 </xsd:sequence>
 </xsd:complexType>
 </xsd:element>
</xsd:schema>
</types>
<message name="QueryInput">
 <part name="body" element="tns:query"/>
</message>
<message name="XMLOutput">
 <part name="body" element="tns:queryOut"/>
</message>
<portType name="ORAWSVPortType">
 <operation name="XMLFromQuery">
 <input message="tns:QueryInput"/>
 <output message="tns:XMLOutput"/>
 </operation>
</portType>
<binding name="ORAWSVBinding" type="tns:ORAWSVPortType">
 <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
 <operation name="XMLFromQuery">
 <soap:operation soapAction="http://localhost/orawsv"/>
 <input>
 <soap:body use="literal"/>
 </input>
 <output>
 <soap:body use="literal"/>
 </output>
 </operation>
</binding>
<service name="ORAWSVService">
 <documentation>Oracle Web Service</documentation>
 <port name="ORAWSVPort" binding="tns:ORAWSVBinding">
 <soap:address location="http://localhost/orawsv"/>
 </port>
</service>
</definitions>Edited by: mdrake on Jan 27, 2011 8:42 PM

Using existing Application Modules Entities in web service provider

Hi, I want to implement a web service provider having a WSDL file and using JAXWS.
Is it possible to use in input methods of the service, an Application Module or Entities or View Objects that exist in a separate project.
I want to perform database operations and facilitate transactions using existing ORM mapping of ADF.
Thanks,
Ilias Stavrakis

Yes, it is possible, but you have to checkout and release the ApplicationModules manually. Use the method <tt>Configuration.createRootApplicationModule(...)</tt> of the class <tt>oracle.jbo.client.Configuration</tt> to checkout modules, and use the method <tt>Configuration.releaseRootApplicationModule(...)</tt> to release it back to the AM pool at the end of processing.
See this blog entry http://jobinesh.blogspot.com/2010/04/invoking-applicationmodule-from-servlet.html despite the fact that it is not directly related to Web services.

How to connect a PDF form to SQL server database through web service?

Hi,
I'm new to LiveCycle designer. I have designed a PDF form in LC designer ES2, which suppose to take a personnel number and retrieve the personnel information from a SQL server database. Currently its working fine with XML data and a search button, but I need to securly connect to a database through web service. I know how to connect to a wsdl file through designer. What I need is a wsdl file to connect the form to database. For this purpose, is there any WSDL code to use as the web service?
I really appreciate your help and advice.

Hi,
I'm new to LiveCycle designer. I have designed a PDF form in LC designer ES2, which suppose to take a personnel number and retrieve the personnel information from a SQL server database. Currently its working fine with XML data and a search button, but I need to securly connect to a database through web service. I know how to connect to a wsdl file through designer. What I need is a wsdl file to connect the form to database. For this purpose, is there any WSDL code to use as the web service?
I really appreciate your help and advice.

OutofMemory Error while sending file to database using Web services

I have a file of 30MB to be written to the MySQL database. I am doing this in Axis web services and it gives me the following error:
(I am using Tomcat as the application server and Apache as the web server, Axis 1.3 and MySQL standard 5.0.21 version. I have set the minimum and maximum heap size and it works well without using the web service (just uploading and downloading from the database using a simple java program). Another thing to notice is that I can send a file of almost 10MB size to the database using web service without any problem. But it doesn't work with the 30 MB .)
java.lang.OutOfMemoryError: Java heap space; nested exception is:
 java.lang.OutOfMemoryError: Java heap space
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.generalException
faultSubcode:
faultString: java.lang.OutOfMemoryError: Java heap space; nested exception is:
 java.lang.OutOfMemoryError: Java heap space
faultActor:
faultNode:
faultDetail:
 {http://xml.apache.org/axis/}hostname:dbr221d.dbr.louisville.edu
java.lang.OutOfMemoryError: Java heap space; nested exception is:
 java.lang.OutOfMemoryError: Java heap space
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 at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:148)
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 at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
 at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
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Sorry for the delayed response here, forget to add it to my watchlist. I didn't catch if you were using Java 1.5 or not. Prior to 1.5 the default maximum heap space was 64MB which with the overhead of the appserver might be your problem.
Take a look at http://java.sun.com/j2se/1.5.0/docs/guide/vm/gc-ergonomics.html and the java -Xmx <size> command line option to change the default (I believe the size argument is in bytes, but don't hold me to that). I think you can pass that as a command line option to the startup script, but you should check the doco to see if it needs to be wrapped in some other arg etc.,
I seem to recall running into this same problem a few years back when I had a servlet doing some intense graphics processing on the fly and setting this option fixed the problem.

ABAP calling web service provided by AXIS -error

Hello expert,
I am calling web service provided by AXIS in ABAP but error occur when processing response part.
The web service is used to create material master in JAVA AXIS system.
After setting up the LP in soamanager then make a call, we got an error saying
"GENERAL_ERROR Error duing proxy processing (PART
UNKNOWN (NULL) ) "
I looked at the full trace in soamanger, the call is executed successful, and the data are inserted in the remote system.
response payload can be seen in the trace
Request payload
<soap-env:Envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/"><soap-env:Header><n0:Trace xmlns:n0="http://www.sap.com/webas/630/soap/features/runtime/tracing/"><n0:TraceLevel>Full</n0:TraceLevel><n0:TraceContext><TRC_PATTERN>WSTEST</TRC_PATTERN><TRC_KEY>E08673F6795E2EF1A482D48564570FA4</TRC_KEY><TRC_SSID>ED1_00</TRC_SSID><TRC_USER>CAILIN</TRC_USER><TRC_TS>20110525020904</TRC_TS><TRC_COUNTER>98</TRC_COUNTER><TRC_EXTERN></TRC_EXTERN></n0:TraceContext></n0:Trace><n1:MessageID xmlns:n1="http://schemas.xmlsoap.org/ws/2004/08/addressing">uuid:e08673f6-795e-30f1-a482-d48564570fa4</n1:MessageID><n2:Action soap-env:mustUnderstand="1" xmlns:n2="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope">http://eam.envisioncn.com:8180/msgagent/services/SAPService/CreateITEM</n2:Action><n3:To soap-env:mustUnderstand="1" xmlns:n3="http://schemas.xmlsoap.org/ws/2004/08/addressing" xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope">http://eam.envisioncn.com:8180/msgagent/services/SAPService</n3:To><wsa:From xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"><wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address></wsa:From><wsa:ReplyTo xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"><wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address></wsa:ReplyTo><wsa:FaultTo xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"><wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address></wsa:FaultTo></soap-env:Header><soap-env:Body><n0:CreateITEM xmlns:n0="http://sap.env" xmlns:prx="urn:sap.com:proxy:ED1:/1SAI/TXS40FB8A9F499B60E81B2F:700:2010/10/07" xmlns:n1="http://eam.envisioncn.com:8180/msgagent/services/SAPService"><n1:itemnum>123</n1:itemnum><n1:description>u6D4Bu8BD5u7269u6599</n1:description><n1:issueunit>EA</n1:issueunit><n1:env_model>u89C4u683C1</n1:env_model><n1:env_ordernum>1</n1:env_ordernum><n1:istool>Y</n1:istool></n0:CreateITEM></soap-env:Body></soap-env:Envelope>
Response Payload
<?xml version="1.0" encoding="utf-8"?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soapenv:Body><CreateITEMResponse xmlns="http://sap.env"><CreateITEMReturn>S</CreateITEMReturn></CreateITEMResponse></soapenv:Body></soapenv:Envelope>
For me it looks it is an issue in the response payload that ABAP proxy can not process it.
such as, the response payload NS prefix is soapenv, other than soap-env in request payload...
but i am not sure, whether this is the root cause.
Could you help me to find out what is going wrong here?
Regards,
Cai Lin
Edited by: charlie cai on May 25, 2011 5:20 AM
Edited by: charlie cai on May 25, 2011 5:20 AM

the response payload NS prefix is soapenv, other than soap-env in request payload
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" is equivalent to xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/" . Namespace defined correctly.
I can also see that response is correct (assuming "S" denote success):
<CreateITEMReturn>S</CreateITEMReturn>
Also check type of WSDL style usually this error occurs if you are using RPC/Encoded style WSDL, modify wsdl for Document/Literal style (as RPC style WSDL not supported by ABAP proxy), see this discussion here: Cleint Proxy error
Refer to note: 1358647
Regards,
Gourav

How to connect to database in web service??

Hi all,
How to connect to database in web service ? Can anyone give some advice what kind of database should i use? thanks

No difference. Just connect as usual!
Let me give you an example:
Code to connect to postgresql db ...
public Connection connectPostgresql(String servername, String dbname, String username, String password)
          Connection conn = null;
          try
                    // Load the JDBC driver
                    String driverName = "org.postgresql.Driver";
                    Class.forName(driverName);
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                    String url = "jdbc:postgresql://" + servername + "/" + dbname;
                    conn = DriverManager.getConnection(url, username, password);
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          catch (ClassNotFoundException e)
                    // Could not find the database driver
                    return conn;
          catch (SQLException e)
                    // Could not connect to the database
                    return conn;
}Code for an axis web service ...
public Element[] updateProfile(Element[] params)
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          String str1= node1.getNodeValue();
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}Gokce.

Database native web services and RAC

The Readme in the database documentation library says :
Database native web services used in an Oracle RAC configuration are not supported.
Is this restriction still there for the latest release (the one which was just announced for windows)?
Why does this restriction exist? Any plans to change this in future releases?
What does "not supported" means? It simply doesn't work at all, or you can make it work, but Oracle Support won't help you if there are problems with it?

Yes, unsupported means use at your own risk. Oracle hasn't "approved" what you are doing, so if you run into problems they will not be able to help you.

[ANN] Databases, Portals, Web Services, and XML Integration Magic (Boston, July 29)

Recently added to DCI's Corporate and e-Business Portals
Conference:
Databases, Portals, Web Services, and XML Integration Magic
When: July 29, 2001, 9:00 AM - 5:00 PM
Where: Hynes Convention Center, Boston
http://www.dci.com/brochure/porbos/seminars.asp

Recently added to DCI's Corporate and e-Business Portals
Conference:
Databases, Portals, Web Services, and XML Integration Magic
When: July 29, 2001, 9:00 AM - 5:00 PM
Where: Hynes Convention Center, Boston
http://www.dci.com/brochure/porbos/seminars.asp

XML DB as a web service provider

Does anyone know where I can find some info/sample programs that use XML DB as a web service provider. I'd like to start publishing PL/SQL packages as web services and can't seem to find anything other than high-level info.
Thanks for any responses.

Just to note, I'm on 10.2.0.1.

How could I synchronize databases via web services

I have two web sites. The first has been build in jsp. The second has been build in php. Each of these sites has database mysql.
I have managed to communicate these two web sites via web services.
I would like someone to tell me how could I syncronize these two databases via web services. There is something specific procedure?
Thanks in advance, sorry for my bad English

If you can explain us what you actually looking for, then I can extend my help.As we are also using websites in jsp which is having DB connections.
Cheers
Rajesh R

Update/insert/delete data from xcelsius to Database via web service

Hi,
I need to create dashboard that go function can update/insert/delete data send to Database thru web services, as i know got 2 xcelsius add-on software which support those of function InfoBurst and flynet 
InfoBurst
http://www.infosol.com/azbocug/minutes/4-Writeback%20to%20a%20Database%20with%20Xcelsius.pdf
flynet 
http://www.flynetviewer.com/public/community/Blogs/FlynetXcelsiusServerUser/default.aspx
Except this 2 purchase add-on xcelsius, any other solution ?
Maybe need to write some in MSSQL or C# programming which enable insert, update, delete ...etc ?
*note: i not use Xcelsius Engage Server , i use Xcelsius Engage only
thanks,
regards
s1
Edited by: Leong Pui Kee on Mar 1, 2011 6:06 AM

Hi,
As of now in Xcelsius/Dashboard Design there is no feature or functionality to insert/update/delete data from database.
Solution:
Create a Web service in let’s say C# or Java, which will perform insert/update/delete operation.
In Xcelsius add Web Service connection and user above web service.
Xcelsius Web Service connection provides option to pass input values to a Web Service (Input Pane) and get the result (Output values pane).
We can pass values to be written to the database as a input to Web Service via Web Service connection from Xcelsius and write data to the database.
Note:
Performing delete operation from Xcelsius Dashboard could be risky and may delete important data from database. I would not prefer giving delete option/functionality in Xcelsius dashboard.
Hope this helps!
Thank you.
Regards,
Vinay Mhaske

How to consume a web service provided by third party system from SAP system

Hi Friends,
Could any of you provide me a clear picture on how to consume a web service from SAP system and is provided by a third party system?
Do we get an URL to create a client proxy for consuming the web service?
Thanx in advance,
Ram

Hi Ram,
of course you cannot supply the WSDL URL. Inside the WSDL (just view it in your browser) you find (usually but not necessary) towards the end something like
<soap:address location="http://www.weather.gov/forecasts/xml/SOAP_server/ndfdXMLserver.php"/>
which is the actual adress of the service.
An example service can be found here:
<a href="http://www.weather.gov/xml/">National Digital Forecast Database</a>
containing the WSDL URL at
<a href="http://www.weather.gov/forecasts/xml/DWMLgen/wsdl/ndfdXML.wsdl">this address</a>.
You might also want to browse for the amazon webservices which allow you to embed queries against amazon into your application.
have fun,
anton

Database as Web Services Provider?

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