ABAP Obsolete statements - REFRESH

Posted by -
Its time for another bite-sized post, This time with an obsolete statement.

You have used it and I have used it, we all have used it whenever we wanted to clear the content of an internal table. Yes, I am talking about the REFRESH statement.

Its almost second nature to use a CLEAR statement for clearing variables and Structures and REFRESH statements for Internal tables.

To all the lovers of REFRESH statements, I have got bad news. It's Obsolete. 

SO whats the replacement? its good old CLEAR statement,


You might be wondering, why? It was a harmless statement. The way I see it, It became redundant with an Object-oriented setup.

You see the statement REFRESH itab acts for internal tables like CLEAR itab[]. 
If the internal table itab has a header line, then the table body and not the header line is initialized.
If the internal table itab has no header line, REFRESH itab acts like CLEAR itab.
Now, Since the use of tables with header lines is obsolete and forbidden in classes, the use of REFRESH instead of CLEAR is also obsolete.

To delete rows in internal tables, CLEAR or FREE can always be used.

Bottom line, Stop Using REFRESH, Start using CLEAR or FREE when relevant..


Popular posts from this blog

ABAP convert internal table to excel (.xlsx) format and Send email or download

Posted by -
Reporting is incomplete without file interfacing. Sometimes the requirement is to send a file via email or download it to a PC. but what to do when the user requests the file in XLSX format? In today's post, I am sharing how to convert an internal table to .xlsx format and then send it to a PC or email. One of the quickest ways I found it been done is using SALV classes. Below is the Code snippet Now once you have the xstring with you, simply pass it to relevant libraries to handle the output. Downloading to PC: Sending via Email It's that simple. Hope you like the post and use it in your day to day work.
Read more

ABAP read excel(.XLSX) file to internal table in ABAP using CL_FDT_XL_SPREADSHEET

Posted by -
You are given a requirement to upload data to a custom DB table where the user provides you with the file path of the excel on his PC and the report loads the data from it to the Custom table. For experienced Abapers, the requirement is quite straightforward, except that the user wants to upload an XLSX file. There are not many options to read data from XLSX/XLS file. The TEXT_CONVERT_XLS_TO_SAP  function module is one of them but is a performance killer and uses OLE. In this post, I wanted to showcase How we can read data from the XLSX files using CL_FDT_SPOREADSHEET class. Let's start with uploading the file. Now that we have the file in xstring table, let's pass it to CL_FDT_XL_SPREADSHEET to get its object reference. From the object reference, we can retrieve each worksheet data. The data is returned in the form of an anonymous data object which can be dereferenced into a field symbol and passed to the target internal table. Below is the cod
Read more

Application Logging in ABAP

Posted by -
Image
Whether you are working with integration or a critical application or a complex report, logging becomes an obvious choice and activity.  Traditionally, Abapers have been logging information using a custom DB table defined specifically for a particular application. While useful, The approach has some flaws,      - Every application needs to have its own logging table      - Record purging/archiving needs to be set up in order to make sure old records are either deleted         or archived.      - There is no reusability of either the setup or the logic to log. With the introduction of Application Logging from SAP, the traditional approach can be left out.  In this post, I will be talking about how we can leverage the SAP application Logging Library to make logging easy. What is an application log? An application log is a rich type log. It contains information like User, Time, Expiry date of the log along with the actual message raised by the
Read more