ABAP Select data from SAP table E2OIPC1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E2OIPC1 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 E2OIPC1. 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 E2OIPC1 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_E2OIPC1 TYPE STANDARD TABLE OF E2OIPC1,
      WA_E2OIPC1 TYPE E2OIPC1,
      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: <E2OIPC1> TYPE E2OIPC1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E2OIPC1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E2OIPC1
  INTO TABLE IT_E2OIPC1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E2OIPC1
*  INTO TABLE @DATA(IT_E2OIPC12).
*--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_E2OIPC1 INDEX 1 INTO DATA(WA_E2OIPC12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E2OIPC1 ASSIGNING <E2OIPC1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E2OIPC1>-TSTMP = 1.
<E2OIPC1>-TSTEH = 1.
<E2OIPC1>-TDICH = 1.
<E2OIPC1>-MTTMP = 1.
<E2OIPC1>-MTTEH = 1.

ENDLOOP.

LOOP AT IT_E2OIPC1 INTO WA_E2OIPC1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E2OIPC1-BDICH, sy-vline,
  WA_E2OIPC1-HYDRO, sy-vline,
  WA_E2OIPC1-ABFAC, sy-vline,
  WA_E2OIPC1-ABIND, sy-vline,
  WA_E2OIPC1-UMRSL, sy-vline,
  WA_E2OIPC1-CMODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E2OIPC1 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_E2OIPC1 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_E2OIPC1 INTO WA_E2OIPC1.


*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_E2OIPC1_STR, 
TSTMP TYPE STRING,
TSTEH TYPE STRING,
TDICH TYPE STRING,
MTTMP TYPE STRING,
MTTEH TYPE STRING,
BDICH TYPE STRING,
HYDRO TYPE STRING,
ABFAC TYPE STRING,
ABIND TYPE STRING,
UMRSL TYPE STRING,
CMODE TYPE STRING,
COEFF TYPE STRING,
FDICH TYPE STRING,
BSWCN TYPE STRING,
MCF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E2OIPC1_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_E2OIPC1_STR-TSTMP sy-vline 
WA_E2OIPC1_STR-TSTEH sy-vline 
WA_E2OIPC1_STR-TDICH sy-vline 
WA_E2OIPC1_STR-MTTMP sy-vline 
WA_E2OIPC1_STR-MTTEH sy-vline 
WA_E2OIPC1_STR-BDICH sy-vline 
WA_E2OIPC1_STR-HYDRO sy-vline 
WA_E2OIPC1_STR-ABFAC sy-vline 
WA_E2OIPC1_STR-ABIND sy-vline 
WA_E2OIPC1_STR-UMRSL sy-vline 
WA_E2OIPC1_STR-CMODE sy-vline 
WA_E2OIPC1_STR-COEFF sy-vline 
WA_E2OIPC1_STR-FDICH sy-vline 
WA_E2OIPC1_STR-BSWCN sy-vline 
WA_E2OIPC1_STR-MCF sy-vline      INTO ld_text SEPARATED BY SPACE.

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