How to create a dynamic RTF report that creates dynamic columns based on the selection of dynamic columns in a table?

Hi all

Suppose I have table, whose structure changes frequently on a daily basis.

For example. / / desc my_table gives you after the name of the column the day 1

SQL > my_table DESC;

Output

Name

Age

Phone


Day 2, two other columns are added, viz, address and salary.

SQL > my_table DESC;

Output

Name

Age

Phone

Address

Salary


Now, I want to create a Dynnamic RTF report which made extracting data from all columns from my_table daily. For this, I have defined a simultaneous program with XML output type and include in annex a data/definition of data model that takes XML as input and gives the final result of the conc program in EXCEL layout. I am able to do that for a constant number of columns, but don't know how to do it when the number of columns to display dynamically changes.

For 1 day my XML file should be like this.

<?xml version="1.0" encoding="UTF-8"?>
<dataTemplate name="XYZ" description="iExpenses Report" Version="1.0">
<dataQuery>
<sqlStatement name="Q2">
<![CDATA[
SELECT Name
,Age
,Phone
FROM my_table
]]>
</sqlStatement>
</dataQuery>
<dataStructure>
<group name="G_my_table" source="Q2">
  <element name="Name" value="Name" />
  <element name="Age" value="Age" />
  <element name="Phone" value="Phone" />
</group>
</dataStructure>
</dataTemplate>

And my day 1, EXCEL output RTF model should be like this.
Name age phone

Swapnill 23 12345

For 2 days my XML file should be like this. With 2 new columns selected in the SELECT clause.

<?xml version="1.0" encoding="UTF-8"?>
<dataTemplate name="XYZ" description="iExpenses Report" Version="1.0">
<dataQuery>
<sqlStatement name="Q2">
<![CDATA[
SELECT Name
,Age
,Phone
,Address
,Salary
FROM my_table
]]>
</sqlStatement>
</dataQuery>
<dataStructure>
<group name="G_my_table" source="Q2">
  <element name="Name" value="Name" />
  <element name="Age" value="Age" />
  <element name="Phone" value="Phone" />
  <element name="Address" value="Address" />
  <element name="Salary" value="Salary" />
</group>
</dataStructure>
</dataTemplate>

And my day 2, exit EXCEL model RTF should be like this.
Name address telephone pay

23 12345 Madrid 100000 Swapnill

Now, I don't know below things.

  • Make the dynamic XML as we did in the day 1 there are 3 columns in the SELECT statement and the day 2, 5 columns. I want to create a dynamic XML which must not be changed if the new columns are added into my_table. I don't know how to create this query and also create their corresponding items below.
  • Make the RTF model dyanamic as day 1 there are 3 exit EXCEL columns and the day 2, 5 columns. I want to create a dynamic RTF model that would display all the columns selected in XML dynamic. I don't know how the RTF will create new XML tags and how it will know where to place them in the report. Means, I can create model RTF day 1, by loading the XML data for 3 columns and place 3 tags XML in the model. But how he will create and place the tags for the new columns the day 2?

Hope so, you got my requirement, it's difficult. Please let me know how I can implement the necessary solution using the RTF dynamically without any manual intervention.

Kind regards

Patricia K.

Post edited by: SwapnilK

Hi guys,.

I was able to solve above the requirement.

I created a procedure that would create & update (attached to the data definition) XML file dynamically for each race. This dynamic XML contains the SQL statement for the data query that is built dynamically. I am updating this XML file using XDOLoader utility to the definition of data. Then run my program customized to generate the excel output.

Exit excel retrieves correct number of columns dynamically (3 on Day1 and Day2 5), with corresponding data records.

Kind regards

Patricia K.

Tags: Business Intelligence

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