ABAP Select data from SAP table PAEP_COMPONENT_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAEP_COMPONENT_INFO
*  INTO TABLE @DATA(IT_PAEP_COMPONENT_INFO2).
*--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_PAEP_COMPONENT_INFO INDEX 1 INTO DATA(WA_PAEP_COMPONENT_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAEP_COMPONENT_INFO>-SCOMP = 1.
<PAEP_COMPONENT_INFO>-STEXT = 1.
<PAEP_COMPONENT_INFO>-INFTY = 1.
<PAEP_COMPONENT_INFO>-SUBTY = 1.
<PAEP_COMPONENT_INFO>-LGART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAEP_COMPONENT_INFO-PKIND, sy-vline,
  WA_PAEP_COMPONENT_INFO-SCFEE, sy-vline,
  WA_PAEP_COMPONENT_INFO-DSEQU, sy-vline,
  WA_PAEP_COMPONENT_INFO-MNDRY, sy-vline,
  WA_PAEP_COMPONENT_INFO-MINFG, sy-vline,
  WA_PAEP_COMPONENT_INFO-MAXFG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAEP_COMPONENT_INFO 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_PAEP_COMPONENT_INFO 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_PAEP_COMPONENT_INFO INTO WA_PAEP_COMPONENT_INFO.


*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_PAEP_COMPONENT_INFO_STR, 
SCOMP TYPE STRING,
STEXT TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
LGART TYPE STRING,
PKIND TYPE STRING,
SCFEE TYPE STRING,
DSEQU TYPE STRING,
MNDRY TYPE STRING,
MINFG TYPE STRING,
MAXFG TYPE STRING,
PAOOT TYPE STRING,
MAXTM TYPE STRING,
LNUPR TYPE STRING,
LNUPU TYPE STRING,
ELIGR TYPE STRING,
CLCFM TYPE STRING,
CSEQU TYPE STRING,
INPST TYPE STRING,
MINDF TYPE STRING,
MAXDF TYPE STRING,
EFFDA TYPE STRING,
CHILD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAEP_COMPONENT_INFO_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_PAEP_COMPONENT_INFO_STR-SCOMP sy-vline 
WA_PAEP_COMPONENT_INFO_STR-STEXT sy-vline 
WA_PAEP_COMPONENT_INFO_STR-INFTY sy-vline 
WA_PAEP_COMPONENT_INFO_STR-SUBTY sy-vline 
WA_PAEP_COMPONENT_INFO_STR-LGART sy-vline 
WA_PAEP_COMPONENT_INFO_STR-PKIND sy-vline 
WA_PAEP_COMPONENT_INFO_STR-SCFEE sy-vline 
WA_PAEP_COMPONENT_INFO_STR-DSEQU sy-vline 
WA_PAEP_COMPONENT_INFO_STR-MNDRY sy-vline 
WA_PAEP_COMPONENT_INFO_STR-MINFG sy-vline 
WA_PAEP_COMPONENT_INFO_STR-MAXFG sy-vline 
WA_PAEP_COMPONENT_INFO_STR-PAOOT sy-vline 
WA_PAEP_COMPONENT_INFO_STR-MAXTM sy-vline 
WA_PAEP_COMPONENT_INFO_STR-LNUPR sy-vline 
WA_PAEP_COMPONENT_INFO_STR-LNUPU sy-vline 
WA_PAEP_COMPONENT_INFO_STR-ELIGR sy-vline 
WA_PAEP_COMPONENT_INFO_STR-CLCFM sy-vline 
WA_PAEP_COMPONENT_INFO_STR-CSEQU sy-vline 
WA_PAEP_COMPONENT_INFO_STR-INPST sy-vline 
WA_PAEP_COMPONENT_INFO_STR-MINDF sy-vline 
WA_PAEP_COMPONENT_INFO_STR-MAXDF sy-vline 
WA_PAEP_COMPONENT_INFO_STR-EFFDA sy-vline 
WA_PAEP_COMPONENT_INFO_STR-CHILD sy-vline      INTO ld_text SEPARATED BY SPACE.

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