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EnterpriseDB Stored Procedure UDS

Due to the unique nature of EnterpriseDB stored procedures, you cannot add them directly into a catalog. As a substitute, Logi Report has developed the User Data Source API which can use stored procedures in EnterpriseDB. This topic presents an example to show how you can add an EnterpriseDB stored procedure to a catalog.

The usage of EnterpriseDB stored procedures is the same as that of Oracle stored procedures, except that the class name for EnterpriseDB stored procedures is EnterpriseDbProcedureUDS and in the package jet.datasource.enterprisedb. Both Designer and Server include the UDS class, so you do not need to write any Java code or modify the classpath when you implement the API.

Example of Adding an EnterpriseDB Stored Procedure to a Catalog

Suppose that an EnterpriseDB stored procedure is defined as follows:

create or replace package shdemo
    as
    type curtype
    is
ref
cursor;
end shdemo;

    create or replace procedure empquery (param1 in varchar2,
    cur out shdemo.curtype) as lcur shdemo.curtype;
    begin
    open lcur for
    select
    *
    from
    emp
    where
    job = param1;
    cur:=lcur;
    end empquery;

To add the stored procedure into a catalog, follow the steps below:

1. Create a catalog or open a catalog to which you want to add the stored procedure.
2. In the Catalog Manager, right-click the data source the stored procedure is to be added, then select New User Defined Data Source.
3. In the New User Defined Data Source dialog box, specify a name for the UDS in the Name text box, for example, UDS1.
4. In the Class Name text box, type the UDS class jet.datasource.enterprisedb.EnterpriseDbProcedureUDS.
5. In the Parameter box, type any of the following:
   • DRIVER=com.edb.Driver&URL="jdbc:edb://222.222.222.45:5444/edb"&USER=enterprisedb&PSWD=db1234&OWNER=enterprisedb&PROCNAME=empquery&SQL={call empquery(?,?)}&REFCURSORINDEX=2&PARAMVALUE=@job1
   • DRIVER=com.edb.Driver&URL="jdbc:edb://222.222.222.45:5444/edb"&USER=enterprisedb&PSWD=db1234&OWNER=enterprisedb&PROCNAME=empquery&SQL={call empquery(?,?)}&REFCURSORINDEX=2&INPARAMVALUE=@job1,varchar,1
   • OWNER=enterprisedb&PROCNAME=empquery&SQL={call empquery(?,?)}&REFCURSORINDEX=2&PARAMVALUE=@job1

   

6. Select OK to add the UDS class into the catalog.

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