ABAP Select data from SAP table E1P1520 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1P1520 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 E1P1520. 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 E1P1520 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_E1P1520 TYPE STANDARD TABLE OF E1P1520,
      WA_E1P1520 TYPE E1P1520,
      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: <E1P1520> TYPE E1P1520.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1P1520.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1P1520
  INTO TABLE IT_E1P1520.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1P1520
*  INTO TABLE @DATA(IT_E1P15202).
*--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_E1P1520 INDEX 1 INTO DATA(WA_E1P15202).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1P1520 ASSIGNING <E1P1520>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1P1520>-MANDT = 1.
<E1P1520>-PLVAR = 1.
<E1P1520>-OTYPE = 1.
<E1P1520>-OBJID = 1.
<E1P1520>-SUBTY = 1.

ENDLOOP.

LOOP AT IT_E1P1520 INTO WA_E1P1520.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1P1520-ISTAT, sy-vline,
  WA_E1P1520-BEGDA, sy-vline,
  WA_E1P1520-ENDDA, sy-vline,
  WA_E1P1520-VARYF, sy-vline,
  WA_E1P1520-SEQNR, sy-vline,
  WA_E1P1520-INFTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1P1520 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_E1P1520 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_E1P1520 INTO WA_E1P1520.


*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_E1P1520_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
INFTY TYPE STRING,
OTJID TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
AMNT TYPE STRING,
BUGRU TYPE STRING,
BUDIN TYPE STRING,
BUDIN2 TYPE STRING,
CURCY TYPE STRING,
TOTAL TYPE STRING,
TCURCY TYPE STRING,
FREQU TYPE STRING,
DYAVG TYPE STRING,
WKAVG TYPE STRING,
MOAVG TYPE STRING,
YRAVG TYPE STRING,
AKTE TYPE STRING,
KOMM TYPE STRING,
AMNT2 TYPE STRING,
TAVG TYPE STRING,
ADD_AMNT TYPE STRING,
ADD_AMNT_ROLL TYPE STRING,
ADD_TOTAL TYPE STRING,
ADD_TOTAL_ROLL TYPE STRING,
ADD_CURCY TYPE STRING,
ADD_ROLL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1P1520_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_E1P1520_STR-MANDT sy-vline 
WA_E1P1520_STR-PLVAR sy-vline 
WA_E1P1520_STR-OTYPE sy-vline 
WA_E1P1520_STR-OBJID sy-vline 
WA_E1P1520_STR-SUBTY sy-vline 
WA_E1P1520_STR-ISTAT sy-vline 
WA_E1P1520_STR-BEGDA sy-vline 
WA_E1P1520_STR-ENDDA sy-vline 
WA_E1P1520_STR-VARYF sy-vline 
WA_E1P1520_STR-SEQNR sy-vline 
WA_E1P1520_STR-INFTY sy-vline 
WA_E1P1520_STR-OTJID sy-vline 
WA_E1P1520_STR-AEDTM sy-vline 
WA_E1P1520_STR-UNAME sy-vline 
WA_E1P1520_STR-REASN sy-vline 
WA_E1P1520_STR-HISTO sy-vline 
WA_E1P1520_STR-ITXNR sy-vline 
WA_E1P1520_STR-AMNT sy-vline 
WA_E1P1520_STR-BUGRU sy-vline 
WA_E1P1520_STR-BUDIN sy-vline 
WA_E1P1520_STR-BUDIN2 sy-vline 
WA_E1P1520_STR-CURCY sy-vline 
WA_E1P1520_STR-TOTAL sy-vline 
WA_E1P1520_STR-TCURCY sy-vline 
WA_E1P1520_STR-FREQU sy-vline 
WA_E1P1520_STR-DYAVG sy-vline 
WA_E1P1520_STR-WKAVG sy-vline 
WA_E1P1520_STR-MOAVG sy-vline 
WA_E1P1520_STR-YRAVG sy-vline 
WA_E1P1520_STR-AKTE sy-vline 
WA_E1P1520_STR-KOMM sy-vline 
WA_E1P1520_STR-AMNT2 sy-vline 
WA_E1P1520_STR-TAVG sy-vline 
WA_E1P1520_STR-ADD_AMNT sy-vline 
WA_E1P1520_STR-ADD_AMNT_ROLL sy-vline 
WA_E1P1520_STR-ADD_TOTAL sy-vline 
WA_E1P1520_STR-ADD_TOTAL_ROLL sy-vline 
WA_E1P1520_STR-ADD_CURCY sy-vline 
WA_E1P1520_STR-ADD_ROLL sy-vline      INTO ld_text SEPARATED BY SPACE.

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