ABAP Select data from SAP table E1OILPS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1OILPS 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 E1OILPS. 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 E1OILPS 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_E1OILPS TYPE STANDARD TABLE OF E1OILPS,
      WA_E1OILPS TYPE E1OILPS,
      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: <E1OILPS> TYPE E1OILPS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1OILPS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1OILPS
  INTO TABLE IT_E1OILPS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1OILPS
*  INTO TABLE @DATA(IT_E1OILPS2).
*--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_E1OILPS INDEX 1 INTO DATA(WA_E1OILPS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1OILPS ASSIGNING <E1OILPS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1OILPS>-SEQNR = 1.
<E1OILPS>-SOCNR = 1.
<E1OILPS>-SOCKL = 1.
<E1OILPS>-SOCTYP = 1.
<E1OILPS>-EQUNR = 1.

ENDLOOP.

LOOP AT IT_E1OILPS INTO WA_E1OILPS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1OILPS-TPLNR, sy-vline,
  WA_E1OILPS-HZEIN, sy-vline,
  WA_E1OILPS-SERGE, sy-vline,
  WA_E1OILPS-TYPBZ, sy-vline,
  WA_E1OILPS-BAUJJ, sy-vline,
  WA_E1OILPS-BAUMM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1OILPS 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_E1OILPS 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_E1OILPS INTO WA_E1OILPS.


*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.

*Conversion exit ALPHA, internal->external for field SEQNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E1OILPS-SEQNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1OILPS-SEQNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E1OILPS-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1OILPS-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_E1OILPS-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1OILPS-TPLNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_E1OILPS_STR, 
SEQNR TYPE STRING,
SOCNR TYPE STRING,
SOCKL TYPE STRING,
SOCTYP TYPE STRING,
EQUNR TYPE STRING,
TPLNR TYPE STRING,
HZEIN TYPE STRING,
SERGE TYPE STRING,
TYPBZ TYPE STRING,
BAUJJ TYPE STRING,
BAUMM TYPE STRING,
VOLUN TYPE STRING,
MASUN TYPE STRING,
LENUN TYPE STRING,
FRTUN TYPE STRING,
TIMUN TYPE STRING,
TMPUN TYPE STRING,
KAPAZ TYPE STRING,
MXMAS TYPE STRING,
GXDAT TYPE STRING,
GXTIM TYPE STRING,
GXREA TYPE STRING,
SOGRP TYPE STRING,
SLVNR TYPE STRING,
MAXDP TYPE STRING,
MINDP TYPE STRING,
MAXIN TYPE STRING,
MAXOUT TYPE STRING,
UNPKZ TYPE STRING,
UNPPC TYPE STRING,
WASKZ TYPE STRING,
WASPC TYPE STRING,
FLMAS TYPE STRING,
GFLAG TYPE STRING,
HFLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1OILPS_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_E1OILPS_STR-SEQNR sy-vline 
WA_E1OILPS_STR-SOCNR sy-vline 
WA_E1OILPS_STR-SOCKL sy-vline 
WA_E1OILPS_STR-SOCTYP sy-vline 
WA_E1OILPS_STR-EQUNR sy-vline 
WA_E1OILPS_STR-TPLNR sy-vline 
WA_E1OILPS_STR-HZEIN sy-vline 
WA_E1OILPS_STR-SERGE sy-vline 
WA_E1OILPS_STR-TYPBZ sy-vline 
WA_E1OILPS_STR-BAUJJ sy-vline 
WA_E1OILPS_STR-BAUMM sy-vline 
WA_E1OILPS_STR-VOLUN sy-vline 
WA_E1OILPS_STR-MASUN sy-vline 
WA_E1OILPS_STR-LENUN sy-vline 
WA_E1OILPS_STR-FRTUN sy-vline 
WA_E1OILPS_STR-TIMUN sy-vline 
WA_E1OILPS_STR-TMPUN sy-vline 
WA_E1OILPS_STR-KAPAZ sy-vline 
WA_E1OILPS_STR-MXMAS sy-vline 
WA_E1OILPS_STR-GXDAT sy-vline 
WA_E1OILPS_STR-GXTIM sy-vline 
WA_E1OILPS_STR-GXREA sy-vline 
WA_E1OILPS_STR-SOGRP sy-vline 
WA_E1OILPS_STR-SLVNR sy-vline 
WA_E1OILPS_STR-MAXDP sy-vline 
WA_E1OILPS_STR-MINDP sy-vline 
WA_E1OILPS_STR-MAXIN sy-vline 
WA_E1OILPS_STR-MAXOUT sy-vline 
WA_E1OILPS_STR-UNPKZ sy-vline 
WA_E1OILPS_STR-UNPPC sy-vline 
WA_E1OILPS_STR-WASKZ sy-vline 
WA_E1OILPS_STR-WASPC sy-vline 
WA_E1OILPS_STR-FLMAS sy-vline 
WA_E1OILPS_STR-GFLAG sy-vline 
WA_E1OILPS_STR-HFLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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