ABAP Select data from SAP table IPURGDOCSIM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IPURGDOCSIM table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to IPURGDOCSIM. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the IPURGDOCSIM table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_IPURGDOCSIM TYPE STANDARD TABLE OF IPURGDOCSIM,
      WA_IPURGDOCSIM TYPE IPURGDOCSIM,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <IPURGDOCSIM> TYPE IPURGDOCSIM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IPURGDOCSIM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IPURGDOCSIM
  INTO TABLE IT_IPURGDOCSIM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IPURGDOCSIM
*  INTO TABLE @DATA(IT_IPURGDOCSIM2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_IPURGDOCSIM INDEX 1 INTO DATA(WA_IPURGDOCSIM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IPURGDOCSIM ASSIGNING <IPURGDOCSIM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IPURGDOCSIM>-MANDT = 1.
<IPURGDOCSIM>-SIMULATIONJOBUUID = 1.
<IPURGDOCSIM>-APPLICATIONJOB = 1.
<IPURGDOCSIM>-APPLICATIONJOBNAME = 1.
<IPURGDOCSIM>-APPLICATIONLOGHANDLE = 1.

ENDLOOP.

LOOP AT IT_IPURGDOCSIM INTO WA_IPURGDOCSIM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IPURGDOCSIM-PLANNEDSTARTDATE, sy-vline,
  WA_IPURGDOCSIM-PLANNEDSTARTTIME, sy-vline,
  WA_IPURGDOCSIM-ASYNCAPPLICATIONJOBSTATUS, sy-vline,
  WA_IPURGDOCSIM-RELEASEDATETIME, sy-vline,
  WA_IPURGDOCSIM-APPLICATIONJOBDESCRIPTION, sy-vline,
  WA_IPURGDOCSIM-CREATEDBYUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IPURGDOCSIM you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_IPURGDOCSIM TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_IPURGDOCSIM INTO WA_IPURGDOCSIM.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IPURGDOCSIM_STR, 
MANDT TYPE STRING,
SIMULATIONJOBUUID TYPE STRING,
APPLICATIONJOB TYPE STRING,
APPLICATIONJOBNAME TYPE STRING,
APPLICATIONLOGHANDLE TYPE STRING,
PLANNEDSTARTDATE TYPE STRING,
PLANNEDSTARTTIME TYPE STRING,
ASYNCAPPLICATIONJOBSTATUS TYPE STRING,
RELEASEDATETIME TYPE STRING,
APPLICATIONJOBDESCRIPTION TYPE STRING,
CREATEDBYUSER TYPE STRING,
LOGNUMBER TYPE STRING,
PURGDOCMASSUPDTISSIMULATED TYPE STRING,
PURCHASINGDOCUMENTCATEGORY TYPE STRING,
REFERENCEAPPLICATIONJOBNAME TYPE STRING,
APPLICATIONJOBTEMPLATE TYPE STRING,
APPLICATIONJOBTEMPLATEVERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IPURGDOCSIM_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_IPURGDOCSIM_STR-MANDT sy-vline 
WA_IPURGDOCSIM_STR-SIMULATIONJOBUUID sy-vline 
WA_IPURGDOCSIM_STR-APPLICATIONJOB sy-vline 
WA_IPURGDOCSIM_STR-APPLICATIONJOBNAME sy-vline 
WA_IPURGDOCSIM_STR-APPLICATIONLOGHANDLE sy-vline 
WA_IPURGDOCSIM_STR-PLANNEDSTARTDATE sy-vline 
WA_IPURGDOCSIM_STR-PLANNEDSTARTTIME sy-vline 
WA_IPURGDOCSIM_STR-ASYNCAPPLICATIONJOBSTATUS sy-vline 
WA_IPURGDOCSIM_STR-RELEASEDATETIME sy-vline 
WA_IPURGDOCSIM_STR-APPLICATIONJOBDESCRIPTION sy-vline 
WA_IPURGDOCSIM_STR-CREATEDBYUSER sy-vline 
WA_IPURGDOCSIM_STR-LOGNUMBER sy-vline 
WA_IPURGDOCSIM_STR-PURGDOCMASSUPDTISSIMULATED sy-vline 
WA_IPURGDOCSIM_STR-PURCHASINGDOCUMENTCATEGORY sy-vline 
WA_IPURGDOCSIM_STR-REFERENCEAPPLICATIONJOBNAME sy-vline 
WA_IPURGDOCSIM_STR-APPLICATIONJOBTEMPLATE sy-vline 
WA_IPURGDOCSIM_STR-APPLICATIONJOBTEMPLATEVERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.