Merging Flat Files into a single file

Question

Hi I am having 12 flat files having comman format and comma(,) delimited. Each has 28 columns.
What I want is to merge all rows from these 12 files and then populate a table having 2 columns in my target database.
The content in each of these 12 files is like.....
Name,Value,Name,Value,Name,Value.........till 28 columns.
In total having 13 pairs of Name,Value.
The Target table has columns as Key,Value.
Plz Help/Suggest.

Answer 1

Its not a simple task do it in a single interface.
we dont have a key to join 12 files so we cant do this in a interface.
so you can do it using procedure and some temp table.
we can do this task in two methods.
1) Iterative method
-Create a comman single File datastore for 12 files
-create the Oracle table which is used as Final target table( it contains, two columns like name,value).
- create a Oracle table for temporary storage( Temp_tab) which should have structure of file like(name1,value1,name2,value2...... 13 pairs)
-create a procedure using(java or jython) code ,to scan the folder which contains the 12 files and store those file names into the another table for hold the File name.
-create a package, with in the package flow should be like ( scan the upload folder(it contains 12 files) an get the names of those files and store it into Filename_table.
->use evaluate variable to count num of file availbale in the File name table . if it more than 0 go to further process. else stop the process
->using the varibale to get the first file name( using min function)
Note: this varibale should be used in Resource name field of the File datastore.
->So in the interface mapp all the columns of source (file data store) to target 'Temp_tab' table.
-> create a procedure which inserts all the pairs of name and values from Temp_tab table into final target table( use union )
->move the processed file into some other folder like(processed) using sunopsis command
-> create the procedure to delete the processed file name in the Filename table using variable in the filter condition.
-> continue the iteration still the count of files reaches to 0.
I have faced scenario what you have said. I did that task as I mentioned above.
Does it make sence
Thanks
Madha