EJB/SQL data type mapping

Is there a way to define the mapping between SQL data types and the generated Entity bean data types.
(SQL server tiny int is getting mapped to a boolean!!! so I want to change it to a small, is there anything in the EJB 2.0 specification that defines the mapping between DB and EJB types).
thx,
sanjay.

I haven't done any bottom up beans but I would imagine there is an equivalent way you can change the mapping to change the data type when the bean is created. You may just have to change the datatype on the imported db schema before you generate the beans. You will also need to check that your jdbc driver supports transformation between tinyint and small.

Similar Messages

Mapping SQL data types (especially SMALLINT) to Java classes

I want to know the reason for a certain pair of exceptions in JDBC�s mapping of SQL data types to Java classes.
Sun�s web site ( http://java.sun.com/j2se/1.4.2/docs/guide/jdbc/getstart/mapping.html ), Sybase�s site, and other sites contain mappings from SQL data types to Java primitive data types and/or Java classes. On that Sun web page, Section 9.9.1 maps mostly to Java primitive data types, and Section 9.9.3 maps mostly to Java classes. For the SQL data types that map to both primitive data types and classes, the class is typically the wrapper class of the primitive data type. For example, SQL�s DOUBLE data type maps to both the double primitive data type and its wrapper class (Double). However, Section 9.7 of that Sun web page says that there are exceptions for SQL�s TINYINT and SMALLINT. As expected, they map to the byte and short primitive data types, but they map to the Integer class, not the Byte and Short classes (which are the wrapper classes for byte and short). The web page does not state the reason for this pair of exceptions. It seems to me that SMALLINT data would either work for both short and Short or fail for both short and Short. I don�t see why it would work for short but fail for Short (as the web page implies).
Can anybody think of a reason for the pair of exceptions? Thanks.

ghs wrote:
1) If a DBMS deals with the short and byte primitive data types (as the various web pages imply that it does), then why would it not deal with the Short and Byte wrapper classes?As another guess, because conversions get a little weird in java. Or at least they did in the past. As I recall (with not a lot of clarity) it is possible to do something like pass a perfectly valid string value into a short and get an exception. Whereas using Integer and then converting to Short works.
Keep in mind that these are guesses.
3) What I really want to know is this: If I use wrapper classes of Short and Byte (instead of Integer), what will be the harmful consequences (IF ANY)? So far, I have done some trivial testing with a Short for a SMALLINT column (I have not yet tried any TINYINT columns), and it seems to be working.I considered it risky to not test all target databases and drivers.
Obviously testing will reveal problems.
If you don't want to test then you might want to stick with integers.

What is native Sql data types and does oracle support this?

what is native Sql data types
Does oracle support this?

http://download-east.oracle.com/docs/cd/B19306_01/server.102/b14220/datatype.htm#g31099

[svn] 1455: add sql date types and custom serialization tests

Revision: 1455
Author: [email protected]
Date: 2008-04-29 11:56:59 -0700 (Tue, 29 Apr 2008)
Log Message:
add sql date types and custom serialization tests
Modified Paths:
blazeds/trunk/qa/apps/qa-regress/testsuites/mxunit/tests/remotingService/dataTypes/DateTy pesTest.mxml
Added Paths:
blazeds/trunk/qa/apps/qa-regress/testsuites/mxunit/tests/remotingService/dataTypes/MyFile Ref.as
blazeds/trunk/qa/apps/qa-regress/testsuites/mxunit/tests/remotingService/dataTypes/Proper tyProxyTest.mxml
blazeds/trunk/qa/apps/qa-regress/testsuites/mxunit/tests/remotingService/dataTypes/SQLDat eTypesTest.mxml

Congrats to Shanky and Durval!
SQL Server General and Database Engine Technical Guru - June 2014
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SQL Server: What does Column Compressed Page Count Value Signify
in DMV Sys.dm_db_index_physical_stats ?
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[C1] [int] IDENTITY(1,1) NOT NULL, [C2] [char](50) NULL DEFAULT 'DEFAULT TEST DATA' ) ON [PRIMARY]"
GO: "Very informative and well formed article as Said says.. Thanks for that great ressource. "
Durval Ramos
How to get row counts for all Tables
GO: "As usual Durva has one of the best articles about SQL Server General and Database Engine articles! Thanks, buddy!" "
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Answer an interesting question?
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Data Type Mapping from SQL server to Oracle

I am using Oracle 12c with heterogenous services connecting to SQL server DB. Some of the columns in the SQL server SB are defined as 'nvarchar(max)'. These are coming over to Oracle as 'long' type columns. I would like these to be 'varchar2' types in Oracle so I do not have any of the restrictions related to 'long' type fields when using. I can create a view in SQlServer to convert the data type ie. nvarchar(100). What is the highest value I can use to make the data show in Oracle as varchar? BTW I tried nvarchar(4000) but that still showed as long. I tried nvarchar(1000), and that did show as varchar.

The maximum value for a nvarchar2 in Oracle is 2000. The mapping -if the remote column is mapped to an Oracle varchar/nvarchar- depends on the data type returned by the ODBC driver. When the driver returns SQL_Varchar, then the maximum precision is 4000 and when it will map it to SQL_WVarchar then it is 2000.
As your Oracle database uses AL32UTF8 as character set you will get the nvarchar(max) mapped to Oracle longs as the content of your SQL Server nvarchar is stored using UCS2 character set which is covered by the Oracle database charset UTF8. So it shouldn't really matter if the returned string is mapped to an Oracle varchar or nvarchar.

How can I implement data type map?

The getString() method of java.sql.ResultSet interface is not efficient enough.
I want to map any data type to VARCHAR type,then use the getBytes() method to get the value.
How can I implement it.
I know proc can implement it, simply set selda->T[sli] with 1 for any field.

Hello,
What's your LabVIEW version ? Do you have a simple example program which demonstrates this behavior ?
I found another discussions related to your issues with Xcontrols:
updating type defs in Xcontrol Facade
No Data Change event generated for a XControl in a Type Def
XControl facede.vi
Hope this helps.
Regards,
Steve M.
National Instruments France
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>> Vidéo-t'chats de l'été : présentations techniques et ingénieurs pour répondre à vos questions

Data type mapping

Hi,
Where can I map the java datatype to its equivalent DB datatype. I think for Oracle, MS SQL server,Sysbase there is default type mapping.

Jagan wrote:
Great Joe,
Thanks for ur immediate response.:-)
I have few issues here :
1.) Tell me whether i can use Postgres with weblogic6.1 and above versions.Weblogic supports any JDBC driver to any DBMS, as long as the JDBC driver
implements the standard JDBC spec, and is threadsafe.
2.)Can i create tables using weblogic and Postgres?if yes,how?Surely, via the SQL commands Postgres understands, and JDBC:
statement.executeUpdate("create table myTable(myInt int, myName varchar(30), ...)");
3.)If no support is provided,please tell whether weblogic support only the four
Databases mentioned in the doc,explain clearly.BEA is totally devoted to the J2EE standards. We must support any driver and
DBMS that also meets the J2EE spec.
4.)Is there no way i can specify datatype mapping using the weblogic API also?
Application servers like JBoss provide us with a xml where we specify the datatype
mappings for each database,is there something like that for weblogic?no.
Else provide me with a solution.I'm not sure what your exact desire is. For a given DBMS there are a unique
set of column types. There is some overlap across DBMSes, and there is
usually some types that are unique to the DBMS, and some that are generic
in purpose, such as date-time values, that is implemented differently in each
DBMS.
For each DBMS there is one or more JDBC drivers. Each driver will convert
a given DBMS column type to any logically convertable JDBC type. Ie:
an integer column in the DBMS can be asked for via getString(), and the
driver will convert the value 123 to "123". Drivers will also decide what
JDBC type to create from a given DBMS column. If a column value is
asked for via getObject(), the driver will make what it thinks is the best
Java type to represent the column. There is a JDBC spec for this, but many
drivers diverge from the spec.
What do you need, and how can we help?
Once again thanks for ur response,expecting the same again.Sure.
Joe Weinstein
Thanks & Regds,
--Jagan.
Joseph Weinstein <[email protected]> wrote:
Hi. No, we don't have a Postgres-Oracle,Oracle-postgres conversion
chart. Sorry.
Joe
Jagan wrote:
Joseph Weinstein <[email protected]> wrote:
Jagan wrote:
Hi,
Where can I map the java datatype to its equivalent DB datatype.
I
think for Oracle, MS SQL server,Sysbase there is default type mapping.
You will have to check the driver documentation for each DBMS driver
you use. There are too many deviations from the
JDBC spec to rely on it. For instance if you create an Oracle tablewith
an int column, if you do a getObject() to fetch
it's value, the Oracle driver will provide a BigDecimal object.
Joe
Hi Joe,
I think there is a big misunderstanding after seeing your reply.
What i meant was :
I am actually porting an application to weblogic6.1 and Postgre databasewhich
deployed and executed succesfully using weblogic6.1 and Oracle.
Here i face the problem of Datatype mapping for Postgres.
What i wanted is,is there a file or xml in weblogic where i can specifythe datatype
mapping for each database?
If yes,where and how do i do that,explain me with a sample plaese.
Please do not be specific to any database,because i am porting thesame application
to many databases,so please answer me in
generic.
Thanks in Advance,
--Jagan.

Issue with xsd Data type mapping for collection of user defined data type

Hi,
I am facing a issue with wsdl for xsd mapping for collection of user defined data type.
Here is the code snippet.
sample.java
@WebMethod
public QueryPageOutput AccountQue(QueryPageInput qpInput)
public class QueryPageInput implements Serializable, Cloneable
protected Account_IO fMessage = null;
public class QueryPageOutput implements Serializable, Cloneable
protected Account_IO fMessage = null;
public class Account_IO implements Serializable, Cloneable {
protected ArrayList <AccountIC> fintObjInst = null;
public ArrayList<AccountIC>getfintObjInst()
return (ArrayList<AccountIC>)fintObjInst.clone();
public void setfintObjInst(AccountIC val)
fintObjInst = new ArrayList<AccountIC>();
fintObjInst.add(val);
Public class AccountIC
protected String Name;
protected String Desc;
public String getName()
return Name;
public void setName(String name)
Name = name;
For the sample.java code, the wsdl generated is as below:
<?xml version="1.0" encoding="UTF-8" ?>
<wsdl:definitions
name="SimpleService"
targetNamespace="http://example.org"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
xmlns:tns="http://example.org"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
>
<wsdl:types>
<xs:schema version="1.0" targetNamespace="http://examples.org" xmlns:ns1="http://example.org/types"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:import namespace="http://example.org/types"/>
<xs:element name="AccountWSService" type="ns1:accountEMRIO"/>
</xs:schema>
<xs:schema version="1.0" targetNamespace="http://example.org/types" xmlns:ns1="http://examples.org"
xmlns:tns="http://example.org/types" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:import namespace="http://examples.org"/>
<xs:complexType name="queryPageOutput">
<xs:sequence>
<xs:element name="fSiebelMessage" type="tns:accountEMRIO" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="accountEMRIO">
<xs:sequence>
<xs:element name="fIntObjectFormat" type="xs:string" minOccurs="0"/>
<xs:element name="fMessageType" type="xs:string" minOccurs="0"/>
<xs:element name="fMessageId" type="xs:string" minOccurs="0"/>
<xs:element name="fIntObjectName" type="xs:string" minOccurs="0"/>
<xs:element name="fOutputIntObjectName" type="xs:string" minOccurs="0"/>
<xs:element name="fintObjInst" type="xs:anyType" minOccurs="0" maxOccurs="unbounded"/>
</xs:sequence>
</xs:complexType>
<xs:complexType name="queryPageInput">
<xs:sequence>
<xs:element name="fPageSize" type="xs:string" minOccurs="0"/>
<xs:element name="fSiebelMessage" type="tns:accountEMRIO" minOccurs="0"/>
<xs:element name="fStartRowNum" type="xs:string" minOccurs="0"/>
<xs:element name="fViewMode" type="xs:string" minOccurs="0"/>
</xs:sequence>
</xs:complexType>
</xs:schema>
<schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="http://example.org"
xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://example.org" xmlns:ns1="http://example.org/types">
<import namespace="http://example.org/types"/>
<xsd:complexType name="AccountQue">
<xsd:sequence>
<xsd:element name="arg0" type="ns1:queryPageInput"/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="AccountQue" type="tns:AccountQue"/>
<xsd:complexType name="AccountQueResponse">
<xsd:sequence>
<xsd:element name="return" type="ns1:queryPageOutput"/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="AccountQueResponse" type="tns:AccountQueResponse"/>
</schema>
</wsdl:types>
<wsdl:message name="AccountQueInput">
<wsdl:part name="parameters" element="tns:AccountQue"/>
</wsdl:message>
<wsdl:message name="AccountQueOutput">
<wsdl:part name="parameters" element="tns:AccountQueResponse"/>
</wsdl:message>
<wsdl:portType name="SimpleService">
<wsdl:operation name="AccountQue">
<wsdl:input message="tns:AccountQueInput" xmlns:ns1="http://www.w3.org/2006/05/addressing/wsdl"
ns1:Action=""/>
<wsdl:output message="tns:AccountQueOutput" xmlns:ns1="http://www.w3.org/2006/05/addressing/wsdl"
ns1:Action=""/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="SimpleServiceSoapHttp" type="tns:SimpleService">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="AccountQue">
<soap:operation soapAction=""/>
<wsdl:input>
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output>
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="SimpleService">
<wsdl:port name="SimpleServicePort" binding="tns:SimpleServiceSoapHttp">
<soap:address location="http://localhost:7101/WS-Project1-context-root/SimpleServicePort"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
In the above wsdl the collection of fintObjInst if of type xs:anytype. From the wsdl, I do not see the xsd mapping for AccountIC which includes Name and Desc. Due to which, when invoking the web service from a different client like c#(by creating proxy business service), I am unable to set the parameters for AccountIC. I am using JAX-WS stack and WLS 10.3. I have already looked at blog http://weblogs.java.net/blog/kohlert/archive/2006/10/jaxws_and_type.html but unable to solve this issue. However, at run time using a tool like SoapUI, when this wsdl is imported, I am able to see all the params related to AccountIC class.
Can some one help me with this.
Thanks,
Sudha.

Did you try adding the the XmlSeeAlso annotation to the webservice
@XmlSeeAlso({<package.name>.AccountIC.class})
This will add the schema for the data type (AccountIC) to the WSDL.
Hope this helps.
-Ajay

ABAP Data type to XI data type mapping

Hi,
I am creating a message type in XI corresponding to a ABAP structure. There are couple of data types on the ABAP side (for example: RAW, QUAN, CURR CUKY, UNIT, NUMC etc) which i have no idea on what it should be mapped to on the XI side(xsd:string, xsd:token, xsd:int etc).
Is there is any document on mapping from ABAP data type to XML data type ? if yes please send it across.([email protected])
if no doc available, if some body could let me know what these ABAP data type would map on the XI side it would great.
Best Regards,
Kiran

Hi Kiran,
just some more background information to the data types CURR, CUKY, QUAN, UNIT:
1) Each field of data type CURR must be assigned to a field of data type CUKY (the financial amount must be assigned to a currency) and each field of data type QUAN must be assigned to a field of data type UNIT (each quantity must have a dimension). If you want to know this assignment for your specific ABAP structure, you can find it using transaction SE11 with your ABAP structure and go to the tab Currency/Quantity fields. Here you find the information under Reference table and Ref. field.
2) The default number of decimals for a field of data type CURR is 2, but this can be overwritten by the assigned CUKY field. You can check the actual number of decimals for a specific currency with transaction OY04. Here are all currency list that do not have 2 decimals.
3) The default number of decimals for a field of data type QUAN is 3, but this can be overwritten by the assigned UNIT field. You can check the actual number of decimals for a specific unit with transaction CUNI. Click on Units of measurement (pick the correct dimension first), double click on your unit and you find the info in the field Decimal places.
4) Depending on the data you receive your conversions can get quite tricky. Lets take as an example a field of type CURR. If you find the value 1000 in there, this would convert to 10.00 USD if the assigned CUKY field contains the value USD (US dollar). But the same value ca represent 1000 JPY (Japanese Yen) if the assigned CUKY field contains the value JPY. What i try to say is that the value in the field of type CURR alone does not give you the actual amount, you have to know the value of the CUKY field as well. Similar for QUAN and UNIT.
Regards,
Claus

RAW Data Type mapping to BI infoobject

Dear Experts,
We are trying to extract CRM data into BI, the Datasource have a field type 'RAW' . In BI which data type to consider for this field to info object mapping. Pls let me know.
I've taken infoobject of type CHAR with length 60, still getting error in transformations.
Thanks in advance.
HVR.

Hi,
I am trying to extract data from 0CRM_CLAIMS, GUID field
Thanks
HVR

Message Data Type mapping

Hello there,
My scenario is SOAP-XI-SOAP. After doing configuration, I was alble to send the message to server. However, I was not able retrieve data at return.
The following are two xml message that I got from server response and from XI.
1. From SERVER response message.
<ns1:doSpellingSuggestionResponse xmlns:ns1='urn:GoogleSearch' xmlns:SOAP='http://schemas.xmlsoap.org/soap/envelope/' SOAP:actor='http://schemas.xmlsoap.org/soap/encoding/' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'><return xsi:type='xsd:string'>Yahoo!!!</return></ns1:doSpellingSuggestionResponse>
2. From XI
<ns:doSpellingSuggestionResponse xmlns:ns="http://xi.com/googlesearch"></ns:doSpellingSuggestionResponse>
I believe there is something wrong with my data type definition at XI design. I followed the example "How To Use the XI 3.0 SOAP Adapter".
Would anyone please tell me how to define Data Type at XI for data response? Besides, does it have anything to do with Mapping Template.
Please advise.
Thank you very much.
trith.

Satish,
I agree with you. I saw the difference between the response message at the Message Mapping and Message response :
At Message Mapping, the xml message is displayed as :
<ns0:return xmlns:ns0="urn:GoogleSearch"/>
At runtime, the message response is:
<ns1:doSpellingSuggestionResponse xmlns:ns1='urn:GoogleSearch' xmlns:SOAP='http://schemas.xmlsoap.org/soap/envelope/' SOAP:actor='http://schemas.xmlsoap.org/soap/encoding/' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'><return xsi:type='xsd:string'>Yahoo!!!</return></ns1:doSpellingSuggestionResponse>
The wsdl external definition which I got from :
http://api.google.com/GoogleSearch.wsdl
If you said there is some problem with xsd, how I am supposed to fix that? Would you please give me more hints?
Thank you very much.
trith.

Non-build-in-data type mapping error

Hi,
I started a new web service design using a pre-defined Schema. I created a schema project and use XML bean as my web service method parameter.
It works fine in workshop test IDE. But when I deployed it and tried to generate client jar, it gave me Failed to do type mapping error.
What steps I should do to fix this non-build-in data type problem?
thanks
May

Hi,
I started a new web service design using a pre-defined Schema. I created a schema project and use XML bean as my web service method parameter.
It works fine in workshop test IDE. But when I deployed it and tried to generate client jar, it gave me Failed to do type mapping error.
What steps I should do to fix this non-build-in data type problem?
thanks
May

How to access PL/SQL data types through JDBC

Hi,
We have stored procedures written in PL/SQL. These stored procs take both IN and OUT parameters. The parameter types are both regular datatypes like NUMBER, VARCHAR etc. So far so good. I know how to handle these data types.
Some of the stored procs also use parameters that are defined as composite data types like %ROWTYPE or %RECORD. How would I set the values of these data types? Can I use the oracle extension - support for Oracle Objects to accomplish this. If so please let me know with an example. If not any other suggestions or help will be greatly appreciated.
Thanks
Karthik
null

JDBC (and SQLJ) only support SQL types as stored procedure arguments, not PL/SQL types.
If your stored procedure uses a PL/SQL-only type, such as BOOLEAN, record types, or index-by tables, then you cannot call it from Java (or, for that matter, from other languages as well).
There is one exception: scalar index-by table arguments have been supported since JDBC 8.1.7 in the JDBC-OCI driver (refer to the JDBC manual for specifics).
One workaround is to create wrapper PL/SQL stored procedures that take SQL arguments and convert them to PL/SQL -and vice versa- and call the original PL/SQL stored procedures. For example, a record type could be exploded into individual arguments, or it could be converted into a SQL object type, index-by tables could be represented as SQL collection types, etc.
You can find a small example of this in the back of the JPublisher manual, where an example is given how to call a PL/SQL stored procedure that takes BOOLEAN arguments.

Oracle to ODBC data type mapping

Hi all.
I am currently using an EasySoft ODBC driver to connect to 10g. This gives me the ability to map oracle data types to ODBC:
0 NUMBER <= 4 digits SQL_SMALLINT
NUMBER <= 9 digits SQL_INTEGER
NUMBER <= 19 digits SQL_BIGINT
NUMBER = n digits SQL_NUMERIC
NUMBER = n,m digits SQL_NUMERIC
1 NUMBER <= 4 digits SQL_SMALLINT
NUMBER <= 9 digits SQL_INTEGER
NUMBER = n digits SQL_DOUBLE
NUMBER = n,m digits SQL_DOUBLE
2 NUMBER <= 4 digits SQL_SMALLINT
NUMBER = n digits SQL_INTEGER
NUMBER <= 19 digits SQL_BIGINT
NUMBER n,m digits SQL_DOUBLE
I would rather use the Oracle ODBC driver but I am unsure how (read if) I can get these values mapped?
Any help would be much appreciated.

Hi,
Could you re-run with CQLProcessor category set to DEBUG?
Which version of OCEP is it?
Thanks,

SQL Data Type Import

Hello
I would like to import the schema of table in SQL Server into XI Data Type
is it possible?
thx
Shai

If you can export to excel file, I have a tool convert it to datatype.
Liang

EJB/SQL data type mapping

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