ABAP Select data from SAP table E1P0979 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1P0979 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 E1P0979. 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 E1P0979 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_E1P0979 TYPE STANDARD TABLE OF E1P0979,
      WA_E1P0979 TYPE E1P0979,
      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: <E1P0979> TYPE E1P0979.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1P0979.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1P0979
  INTO TABLE IT_E1P0979.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1P0979
*  INTO TABLE @DATA(IT_E1P09792).
*--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_E1P0979 INDEX 1 INTO DATA(WA_E1P09792).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1P0979 ASSIGNING <E1P0979>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1P0979>-PERNR = 1.
<E1P0979>-INFTY = 1.
<E1P0979>-SUBTY = 1.
<E1P0979>-OBJPS = 1.
<E1P0979>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_E1P0979 INTO WA_E1P0979.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1P0979-ENDDA, sy-vline,
  WA_E1P0979-BEGDA, sy-vline,
  WA_E1P0979-SEQNR, sy-vline,
  WA_E1P0979-AEDTM, sy-vline,
  WA_E1P0979-UNAME, sy-vline,
  WA_E1P0979-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1P0979 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_E1P0979 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_E1P0979 INTO WA_E1P0979.


*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_E1P0979_STR, 
PERNR TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
SPRPS TYPE STRING,
ENDDA TYPE STRING,
BEGDA TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
HISTO TYPE STRING,
ITXEX TYPE STRING,
REFEX TYPE STRING,
ORDEX TYPE STRING,
ITBLD TYPE STRING,
PREAS TYPE STRING,
FLAG1 TYPE STRING,
FLAG2 TYPE STRING,
FLAG3 TYPE STRING,
FLAG4 TYPE STRING,
RESE1 TYPE STRING,
RESE2 TYPE STRING,
GRPVL TYPE STRING,
SPERR TYPE STRING,
REVMO TYPE STRING,
RETR1 TYPE STRING,
RETD1 TYPE STRING,
RECP1 TYPE STRING,
SUMC1 TYPE STRING,
CALB1 TYPE STRING,
DEBO1 TYPE STRING,
MULF1 TYPE STRING,
PERC1 TYPE STRING,
PENB1 TYPE STRING,
YEAR1 TYPE STRING,
MONT1 TYPE STRING,
DAYS1 TYPE STRING,
SIDB1 TYPE STRING,
SIDO1 TYPE STRING,
CHIB1 TYPE STRING,
ADDB1 TYPE STRING,
PENS1 TYPE STRING,
RETR2 TYPE STRING,
RETD2 TYPE STRING,
RECP2 TYPE STRING,
SUMC2 TYPE STRING,
CALB2 TYPE STRING,
DEBO2 TYPE STRING,
MULF2 TYPE STRING,
PERC2 TYPE STRING,
PENB2 TYPE STRING,
YEAR2 TYPE STRING,
MONT2 TYPE STRING,
DAYS2 TYPE STRING,
SIDB2 TYPE STRING,
SIDO2 TYPE STRING,
CHIB2 TYPE STRING,
ADDB2 TYPE STRING,
PENS2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1P0979_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_E1P0979_STR-PERNR sy-vline 
WA_E1P0979_STR-INFTY sy-vline 
WA_E1P0979_STR-SUBTY sy-vline 
WA_E1P0979_STR-OBJPS sy-vline 
WA_E1P0979_STR-SPRPS sy-vline 
WA_E1P0979_STR-ENDDA sy-vline 
WA_E1P0979_STR-BEGDA sy-vline 
WA_E1P0979_STR-SEQNR sy-vline 
WA_E1P0979_STR-AEDTM sy-vline 
WA_E1P0979_STR-UNAME sy-vline 
WA_E1P0979_STR-HISTO sy-vline 
WA_E1P0979_STR-ITXEX sy-vline 
WA_E1P0979_STR-REFEX sy-vline 
WA_E1P0979_STR-ORDEX sy-vline 
WA_E1P0979_STR-ITBLD sy-vline 
WA_E1P0979_STR-PREAS sy-vline 
WA_E1P0979_STR-FLAG1 sy-vline 
WA_E1P0979_STR-FLAG2 sy-vline 
WA_E1P0979_STR-FLAG3 sy-vline 
WA_E1P0979_STR-FLAG4 sy-vline 
WA_E1P0979_STR-RESE1 sy-vline 
WA_E1P0979_STR-RESE2 sy-vline 
WA_E1P0979_STR-GRPVL sy-vline 
WA_E1P0979_STR-SPERR sy-vline 
WA_E1P0979_STR-REVMO sy-vline 
WA_E1P0979_STR-RETR1 sy-vline 
WA_E1P0979_STR-RETD1 sy-vline 
WA_E1P0979_STR-RECP1 sy-vline 
WA_E1P0979_STR-SUMC1 sy-vline 
WA_E1P0979_STR-CALB1 sy-vline 
WA_E1P0979_STR-DEBO1 sy-vline 
WA_E1P0979_STR-MULF1 sy-vline 
WA_E1P0979_STR-PERC1 sy-vline 
WA_E1P0979_STR-PENB1 sy-vline 
WA_E1P0979_STR-YEAR1 sy-vline 
WA_E1P0979_STR-MONT1 sy-vline 
WA_E1P0979_STR-DAYS1 sy-vline 
WA_E1P0979_STR-SIDB1 sy-vline 
WA_E1P0979_STR-SIDO1 sy-vline 
WA_E1P0979_STR-CHIB1 sy-vline 
WA_E1P0979_STR-ADDB1 sy-vline 
WA_E1P0979_STR-PENS1 sy-vline 
WA_E1P0979_STR-RETR2 sy-vline 
WA_E1P0979_STR-RETD2 sy-vline 
WA_E1P0979_STR-RECP2 sy-vline 
WA_E1P0979_STR-SUMC2 sy-vline 
WA_E1P0979_STR-CALB2 sy-vline 
WA_E1P0979_STR-DEBO2 sy-vline 
WA_E1P0979_STR-MULF2 sy-vline 
WA_E1P0979_STR-PERC2 sy-vline 
WA_E1P0979_STR-PENB2 sy-vline 
WA_E1P0979_STR-YEAR2 sy-vline 
WA_E1P0979_STR-MONT2 sy-vline 
WA_E1P0979_STR-DAYS2 sy-vline 
WA_E1P0979_STR-SIDB2 sy-vline 
WA_E1P0979_STR-SIDO2 sy-vline 
WA_E1P0979_STR-CHIB2 sy-vline 
WA_E1P0979_STR-ADDB2 sy-vline 
WA_E1P0979_STR-PENS2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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