ABAP Select data from SAP table E1P0079 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1P0079 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 E1P0079. 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 E1P0079 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_E1P0079 TYPE STANDARD TABLE OF E1P0079,
      WA_E1P0079 TYPE E1P0079,
      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: <E1P0079> TYPE E1P0079.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1P0079.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1P0079
  INTO TABLE IT_E1P0079.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1P0079
*  INTO TABLE @DATA(IT_E1P00792).
*--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_E1P0079 INDEX 1 INTO DATA(WA_E1P00792).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1P0079 ASSIGNING <E1P0079>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1P0079>-PERNR = 1.
<E1P0079>-INFTY = 1.
<E1P0079>-SUBTY = 1.
<E1P0079>-OBJPS = 1.
<E1P0079>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_E1P0079 INTO WA_E1P0079.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1P0079-ENDDA, sy-vline,
  WA_E1P0079-BEGDA, sy-vline,
  WA_E1P0079-SEQNR, sy-vline,
  WA_E1P0079-AEDTM, sy-vline,
  WA_E1P0079-UNAME, sy-vline,
  WA_E1P0079-HISTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1P0079 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_E1P0079 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_E1P0079 INTO WA_E1P0079.


*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_E1P0079_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,
SVART TYPE STRING,
BEZ01 TYPE STRING,
KVB01 TYPE STRING,
KVF01 TYPE STRING,
ZUS01 TYPE STRING,
SEL01 TYPE STRING,
BES01 TYPE STRING,
SON01 TYPE STRING,
ZVB01 TYPE STRING,
BEZ02 TYPE STRING,
KVB02 TYPE STRING,
KVF02 TYPE STRING,
ZUS02 TYPE STRING,
SEL02 TYPE STRING,
BES02 TYPE STRING,
SON02 TYPE STRING,
ZVB02 TYPE STRING,
BEZ03 TYPE STRING,
KVB03 TYPE STRING,
KVF03 TYPE STRING,
ZUS03 TYPE STRING,
SEL03 TYPE STRING,
BES03 TYPE STRING,
SON03 TYPE STRING,
ZVB03 TYPE STRING,
BEZ04 TYPE STRING,
KVB04 TYPE STRING,
KVF04 TYPE STRING,
ZUS04 TYPE STRING,
SEL04 TYPE STRING,
BES04 TYPE STRING,
SON04 TYPE STRING,
ZVB04 TYPE STRING,
BEZ05 TYPE STRING,
KVB05 TYPE STRING,
KVF05 TYPE STRING,
ZUS05 TYPE STRING,
SEL05 TYPE STRING,
BES05 TYPE STRING,
SON05 TYPE STRING,
ZVB05 TYPE STRING,
GRPVL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1P0079_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_E1P0079_STR-PERNR sy-vline 
WA_E1P0079_STR-INFTY sy-vline 
WA_E1P0079_STR-SUBTY sy-vline 
WA_E1P0079_STR-OBJPS sy-vline 
WA_E1P0079_STR-SPRPS sy-vline 
WA_E1P0079_STR-ENDDA sy-vline 
WA_E1P0079_STR-BEGDA sy-vline 
WA_E1P0079_STR-SEQNR sy-vline 
WA_E1P0079_STR-AEDTM sy-vline 
WA_E1P0079_STR-UNAME sy-vline 
WA_E1P0079_STR-HISTO sy-vline 
WA_E1P0079_STR-ITXEX sy-vline 
WA_E1P0079_STR-REFEX sy-vline 
WA_E1P0079_STR-ORDEX sy-vline 
WA_E1P0079_STR-ITBLD sy-vline 
WA_E1P0079_STR-PREAS sy-vline 
WA_E1P0079_STR-FLAG1 sy-vline 
WA_E1P0079_STR-FLAG2 sy-vline 
WA_E1P0079_STR-FLAG3 sy-vline 
WA_E1P0079_STR-FLAG4 sy-vline 
WA_E1P0079_STR-RESE1 sy-vline 
WA_E1P0079_STR-RESE2 sy-vline 
WA_E1P0079_STR-SVART sy-vline 
WA_E1P0079_STR-BEZ01 sy-vline 
WA_E1P0079_STR-KVB01 sy-vline 
WA_E1P0079_STR-KVF01 sy-vline 
WA_E1P0079_STR-ZUS01 sy-vline 
WA_E1P0079_STR-SEL01 sy-vline 
WA_E1P0079_STR-BES01 sy-vline 
WA_E1P0079_STR-SON01 sy-vline 
WA_E1P0079_STR-ZVB01 sy-vline 
WA_E1P0079_STR-BEZ02 sy-vline 
WA_E1P0079_STR-KVB02 sy-vline 
WA_E1P0079_STR-KVF02 sy-vline 
WA_E1P0079_STR-ZUS02 sy-vline 
WA_E1P0079_STR-SEL02 sy-vline 
WA_E1P0079_STR-BES02 sy-vline 
WA_E1P0079_STR-SON02 sy-vline 
WA_E1P0079_STR-ZVB02 sy-vline 
WA_E1P0079_STR-BEZ03 sy-vline 
WA_E1P0079_STR-KVB03 sy-vline 
WA_E1P0079_STR-KVF03 sy-vline 
WA_E1P0079_STR-ZUS03 sy-vline 
WA_E1P0079_STR-SEL03 sy-vline 
WA_E1P0079_STR-BES03 sy-vline 
WA_E1P0079_STR-SON03 sy-vline 
WA_E1P0079_STR-ZVB03 sy-vline 
WA_E1P0079_STR-BEZ04 sy-vline 
WA_E1P0079_STR-KVB04 sy-vline 
WA_E1P0079_STR-KVF04 sy-vline 
WA_E1P0079_STR-ZUS04 sy-vline 
WA_E1P0079_STR-SEL04 sy-vline 
WA_E1P0079_STR-BES04 sy-vline 
WA_E1P0079_STR-SON04 sy-vline 
WA_E1P0079_STR-ZVB04 sy-vline 
WA_E1P0079_STR-BEZ05 sy-vline 
WA_E1P0079_STR-KVB05 sy-vline 
WA_E1P0079_STR-KVF05 sy-vline 
WA_E1P0079_STR-ZUS05 sy-vline 
WA_E1P0079_STR-SEL05 sy-vline 
WA_E1P0079_STR-BES05 sy-vline 
WA_E1P0079_STR-SON05 sy-vline 
WA_E1P0079_STR-ZVB05 sy-vline 
WA_E1P0079_STR-GRPVL sy-vline      INTO ld_text SEPARATED BY SPACE.

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