ABAP Select data from SAP table PIQACADOFFERSCREENFIELDS into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQACADOFFERSCREENFIELDS 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 PIQACADOFFERSCREENFIELDS. 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 PIQACADOFFERSCREENFIELDS 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_PIQACADOFFERSCREENFIELDS TYPE STANDARD TABLE OF PIQACADOFFERSCREENFIELDS,
      WA_PIQACADOFFERSCREENFIELDS TYPE PIQACADOFFERSCREENFIELDS,
      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: <PIQACADOFFERSCREENFIELDS> TYPE PIQACADOFFERSCREENFIELDS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQACADOFFERSCREENFIELDS
*  INTO TABLE @DATA(IT_PIQACADOFFERSCREENFIELDS2).
*--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_PIQACADOFFERSCREENFIELDS INDEX 1 INTO DATA(WA_PIQACADOFFERSCREENFIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQACADOFFERSCREENFIELDS>-ROOTNODE = 1.
<PIQACADOFFERSCREENFIELDS>-PLVAR = 1.
<PIQACADOFFERSCREENFIELDS>-OTYPE = 1.
<PIQACADOFFERSCREENFIELDS>-SHORT = 1.
<PIQACADOFFERSCREENFIELDS>-STEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQACADOFFERSCREENFIELDS-OBJID, sy-vline,
  WA_PIQACADOFFERSCREENFIELDS-PERYR, sy-vline,
  WA_PIQACADOFFERSCREENFIELDS-PERID, sy-vline,
  WA_PIQACADOFFERSCREENFIELDS-KEYDATE, sy-vline,
  WA_PIQACADOFFERSCREENFIELDS-STAGE, sy-vline,
  WA_PIQACADOFFERSCREENFIELDS-LOCOBJID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQACADOFFERSCREENFIELDS 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_PIQACADOFFERSCREENFIELDS 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_PIQACADOFFERSCREENFIELDS INTO WA_PIQACADOFFERSCREENFIELDS.


*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_PIQACADOFFERSCREENFIELDS_STR, 
ROOTNODE TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
OBJID TYPE STRING,
PERYR TYPE STRING,
PERID TYPE STRING,
KEYDATE TYPE STRING,
STAGE TYPE STRING,
LOCOBJID TYPE STRING,
LOCSHORT TYPE STRING,
LOCSTEXT TYPE STRING,
EVPROCSTAT TYPE STRING,
ISTAT TYPE STRING,
ISTAT_FIX TYPE STRING,
ISTAT_PLANNED TYPE STRING,
ISTAT_BOTH TYPE STRING,
OFFERED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQACADOFFERSCREENFIELDS_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_PIQACADOFFERSCREENFIELDS_STR-ROOTNODE sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-PLVAR sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-OTYPE sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-SHORT sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-STEXT sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-OBJID sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-PERYR sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-PERID sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-KEYDATE sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-STAGE sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-LOCOBJID sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-LOCSHORT sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-LOCSTEXT sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-EVPROCSTAT sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-ISTAT sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-ISTAT_FIX sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-ISTAT_PLANNED sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-ISTAT_BOTH sy-vline 
WA_PIQACADOFFERSCREENFIELDS_STR-OFFERED sy-vline      INTO ld_text SEPARATED BY SPACE.

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