14 Oracle Reports

14.1.1 OracleAS Reports Services Demos Will Not Work If JServ is Configured

To run OracleAS Reports Services demos properly, do not configure Apache JServ on the computer where OracleAS Reports Services is installed.

14.1.2 Error While Editing Batch Registered Report in OracleAS Portal

If you batch register a report in OracleAS Portal, then subsequently manually edit the report's registration in OracleAS Portal, you may encounter an unexpected Save As dialog box during the manual editing process.

To work around this issue, specify the Display Name property while editing the report's registration in OracleAS Portal.

Refer to the Oracle Application Server Reports Services Publishing Reports to the Web manual for information on how to register a report with OracleAS Portal.

14.1.3 Limitation on Linked Queries for DelimitedData Output

DelimitedData output does not allow multiple queries to be linked to the main query, because sibling groups are not supported.

For example:

Case 1: You have a link between Q1 and Q2, a link between Q2 and Q3, and a standalone Q4 query.

Q1<-->Q2<-->Q3 Q4

In this case, DelimitedData output is generated correctly.

Case 2: You have a link between Q1 and Q2, a link between Q2 and Q3, and a link between Q4 and Q1.

Q1<-->Q2<-->Q3 Q1<-->Q4

In this case, DelimitedData output is not generated correctly. Alternatively, you can use XML output.

14.1.4 Images in HTML Output of Oracle Reports Not Displayed When Viewed from Oracle Enterprise Manager 10g

If OracleAS Web Cache is configured as SSL-enabled and Oracle HTTP Server is not, then the images in the HTML output of Oracle Reports is not displayed when viewed from Oracle Enterprise Manager 10g. This is because the image URLs mentioned in the HTML output points to OracleAS Web Cache ports, which are SSL-enabled, whereas the request for past job outputs of Oracle Reports from Oracle Enterprise Manager 10g is non-SSL.

To work around this issue, edit the Servlet property of the URL in the targets.xml file for Reports Server type such that it points to the OracleAS Web Cache port instead of the Oracle HTTP Server port. The targets.xml file is available at ORACLE_HOME\sysman\emd directory.

For example, if your OracleAS Web Cache is SSL-enabled and the listening port number is 443, then the Servlet property of the URL for the Reports Server target in the targets.xml file should be as shown in the following example:

<Target TYPE="oracle_repserv" …..>
......
<Property NAME="Servlet" VALUE="https://xyz.mycompany.com:443/reports/rwservlet"/>
......
</Target>

14.1.5 Misalignment in Large Multibyte Reports When Using the Enhanced Font Subsetting Feature with Acrobat Reader 7.0

If you use Acrobat Reader 7.0 to view multibyte and unicode PDF reports that use enhanced font subsetting feature (default) and the report size is very large, then some of the characters displayed will not be aligned properly.

To work around this issue, you can do either of the following:

• Set the environment variable REPORTS_ENHANCED_SUBSET to NO to revert to the Type 3 font subsetting implementation used in releases prior to Oracle Reports 10g Release 2 (10.1.2).

• Use Acrobat Reader 6.0 or earlier.

14.1.6 PL/SQL Compilation Failure When Using SQL Constructs

PL/SQL compilation may fail if you use SQL constructs in your reports and if the following conditions are present:

• The SQL constructs are used in client side PL/SQL procedures.

To work around this issue, you can do any of the following:

• Use Oracle Database Release 10.1.0.4 or later.

• Move those SQL constructs to the server-side stored procedures.

• Use the SQL constructs within SQL queries directly instead of procedures.

14.2.1 Underlines Do Not Display in HTMLCSS Output in Browser

In HTMLCSS output, underlines may not display in the browser if you use a custom style for a field object and apply both background color and underline as part of the style, as shown in the following example:

.ReportLevel {text-decoration:underline;color:blue; background-color:yellow}

This is a browser limitation. The browser cannot display underlines, with absolute positioning, for the fields that have both underline and background color applied to them.

14.2.2 JSP-Based Web Report with Large Number of Columns Generates JSP Compilation Error

When you run a JSP-based Web report with more than 149 columns, you may encounter the oracle.jsp.provider.JspCompileException error, as shown in the following example:

500 Internal Server Error
OracleJSP: oracle.jsp.provider.JspCompileException: 
Errors 
... 
6764 code too large for try statement catch( Throwable e)
{18 code too large public void _jspService(HttpServletRequest request, HttpServletResponse response) throws java.io.IOException, ServletException}

This occurs due to a limitation in the Java language that does not enable compilation of Java files with large methods.

14.2.3 Java AWT Windows Hangs with Specific Graphics Cards

When you start Reports Server with rwserver.exe, the UI may not display and Reports Server may hang on computers with specific graphics cards (for example, ATI Rage XL PCI card). This occurs due to a problem with the UI mechanism used in Java.

As a workaround, start Reports Server with the JVMOPTIONS command line keyword set as shown in the following example:

rwserver SERVER=test JVMOPTIONS="-Dsun.java2d.noddraw=true"

14.3.1 Reports Server's Job Status Messages in Application Server Control Contain Invalid Characters

Oracle Reports status messages on the Job Status page in Application Server Control Console may contain invalid characters if the middle tier character set, NLS_CHARACTERSET (the third field of NLS_LANG) does not correspond to the encoding of the Reports Servlet response for the servlet locale.

Oracle Enterprise Manager 10g converts the messages from the middle tier's NLS_CHARACTERSET to UTF8 resulting in invalid characters in the status messages on the Job Status page. For example, the Reports Servlet messages are encoded in Shift_JIS when the middle tier runs with LANG set to ja and NLS_LANG set to JAPANESE_JAPAN.JA16EUC. However, Oracle Enterprise Manager 10g assumes that the original message is in JA16EUC, and converts it to UTF8, which results in the display of invalid characters in the status messages.

14.3.2 ENVID Ignored While Detecting Duplicate Job

When detecting a new incoming request for a duplicate job where the job request includes the TOLERANCE keyword, Reports Server ignores the value of the ENVID keyword. As a result, the job is marked duplicate of a previous job that was submitted with the same values for all keywords except ENVID.

The following example illustrates this issue:

In this example, request 4 is correctly marked as a duplicate of request 1 as both the requests use the same values for all keywords, including the ENVID keyword. However, request 3 is incorrectly marked as duplicate of request 2 because both requests use the same values for all keywords, except the ENVID keyword. As a result, the changed ENVID will not be accepted in request 3.

To work around this issue, either do not specify TOLERANCE on the command line or specify a dummy user parameter in the job request to differentiate the job requests in duplicate job detection.