ABAP Select data from SAP table E1R0146 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1R0146 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 E1R0146. 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 E1R0146 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_E1R0146 TYPE STANDARD TABLE OF E1R0146,
      WA_E1R0146 TYPE E1R0146,
      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: <E1R0146> TYPE E1R0146.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1R0146.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1R0146
  INTO TABLE IT_E1R0146.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1R0146
*  INTO TABLE @DATA(IT_E1R01462).
*--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_E1R0146 INDEX 1 INTO DATA(WA_E1R01462).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1R0146 ASSIGNING <E1R0146>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1R0146>-PERNR = 1.
<E1R0146>-INFTY = 1.
<E1R0146>-SUBTY = 1.
<E1R0146>-OBJPS = 1.
<E1R0146>-SPRPS = 1.

ENDLOOP.

LOOP AT IT_E1R0146 INTO WA_E1R0146.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1R0146-ENDDA, sy-vline,
  WA_E1R0146-BEGDA, sy-vline,
  WA_E1R0146-SEQNR, sy-vline,
  WA_E1R0146-NNF04, sy-vline,
  WA_E1R0146-NCN05, sy-vline,
  WA_E1R0146-NNF05, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1R0146 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_E1R0146 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_E1R0146 INTO WA_E1R0146.


*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_E1R0146_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,
NNF04 TYPE STRING,
NCN05 TYPE STRING,
NNF05 TYPE STRING,
NSTOT TYPE STRING,
COF01 TYPE STRING,
COF02 TYPE STRING,
COF03 TYPE STRING,
COF04 TYPE STRING,
COF05 TYPE STRING,
COF06 TYPE STRING,
COF07 TYPE STRING,
COF08 TYPE STRING,
COF09 TYPE STRING,
COF10 TYPE STRING,
COF11 TYPE STRING,
COF12 TYPE STRING,
COF13 TYPE STRING,
COF14 TYPE STRING,
COF15 TYPE STRING,
PEF01 TYPE STRING,
PEF02 TYPE STRING,
PEF03 TYPE STRING,
PEF04 TYPE STRING,
PEF05 TYPE STRING,
LAF01 TYPE STRING,
LAF02 TYPE STRING,
LAF03 TYPE STRING,
LAF04 TYPE STRING,
LAF05 TYPE STRING,
SAF01 TYPE STRING,
SAF02 TYPE STRING,
SAF03 TYPE STRING,
SAF04 TYPE STRING,
SAF05 TYPE STRING,
HOF01 TYPE STRING,
HOF02 TYPE STRING,
HOF03 TYPE STRING,
NUF01 TYPE STRING,
NUF02 TYPE STRING,
NUF03 TYPE STRING,
NUF04 TYPE STRING,
NUF05 TYPE STRING,
REFNM TYPE STRING,
HSTY1 TYPE STRING,
HSDE1 TYPE STRING,
HSDA2 TYPE STRING,
HSTY2 TYPE STRING,
HSDE2 TYPE STRING,
HSDA3 TYPE STRING,
HSTY3 TYPE STRING,
HSDE3 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1R0146_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_E1R0146_STR-PERNR sy-vline 
WA_E1R0146_STR-INFTY sy-vline 
WA_E1R0146_STR-SUBTY sy-vline 
WA_E1R0146_STR-OBJPS sy-vline 
WA_E1R0146_STR-SPRPS sy-vline 
WA_E1R0146_STR-ENDDA sy-vline 
WA_E1R0146_STR-BEGDA sy-vline 
WA_E1R0146_STR-SEQNR sy-vline 
WA_E1R0146_STR-NNF04 sy-vline 
WA_E1R0146_STR-NCN05 sy-vline 
WA_E1R0146_STR-NNF05 sy-vline 
WA_E1R0146_STR-NSTOT sy-vline 
WA_E1R0146_STR-COF01 sy-vline 
WA_E1R0146_STR-COF02 sy-vline 
WA_E1R0146_STR-COF03 sy-vline 
WA_E1R0146_STR-COF04 sy-vline 
WA_E1R0146_STR-COF05 sy-vline 
WA_E1R0146_STR-COF06 sy-vline 
WA_E1R0146_STR-COF07 sy-vline 
WA_E1R0146_STR-COF08 sy-vline 
WA_E1R0146_STR-COF09 sy-vline 
WA_E1R0146_STR-COF10 sy-vline 
WA_E1R0146_STR-COF11 sy-vline 
WA_E1R0146_STR-COF12 sy-vline 
WA_E1R0146_STR-COF13 sy-vline 
WA_E1R0146_STR-COF14 sy-vline 
WA_E1R0146_STR-COF15 sy-vline 
WA_E1R0146_STR-PEF01 sy-vline 
WA_E1R0146_STR-PEF02 sy-vline 
WA_E1R0146_STR-PEF03 sy-vline 
WA_E1R0146_STR-PEF04 sy-vline 
WA_E1R0146_STR-PEF05 sy-vline 
WA_E1R0146_STR-LAF01 sy-vline 
WA_E1R0146_STR-LAF02 sy-vline 
WA_E1R0146_STR-LAF03 sy-vline 
WA_E1R0146_STR-LAF04 sy-vline 
WA_E1R0146_STR-LAF05 sy-vline 
WA_E1R0146_STR-SAF01 sy-vline 
WA_E1R0146_STR-SAF02 sy-vline 
WA_E1R0146_STR-SAF03 sy-vline 
WA_E1R0146_STR-SAF04 sy-vline 
WA_E1R0146_STR-SAF05 sy-vline 
WA_E1R0146_STR-HOF01 sy-vline 
WA_E1R0146_STR-HOF02 sy-vline 
WA_E1R0146_STR-HOF03 sy-vline 
WA_E1R0146_STR-NUF01 sy-vline 
WA_E1R0146_STR-NUF02 sy-vline 
WA_E1R0146_STR-NUF03 sy-vline 
WA_E1R0146_STR-NUF04 sy-vline 
WA_E1R0146_STR-NUF05 sy-vline 
WA_E1R0146_STR-REFNM sy-vline 
WA_E1R0146_STR-HSTY1 sy-vline 
WA_E1R0146_STR-HSDE1 sy-vline 
WA_E1R0146_STR-HSDA2 sy-vline 
WA_E1R0146_STR-HSTY2 sy-vline 
WA_E1R0146_STR-HSDE2 sy-vline 
WA_E1R0146_STR-HSDA3 sy-vline 
WA_E1R0146_STR-HSTY3 sy-vline 
WA_E1R0146_STR-HSDE3 sy-vline      INTO ld_text SEPARATED BY SPACE.

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