ABAP Select data from SAP table E1OILLH into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1OILLH 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 E1OILLH. 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 E1OILLH 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_E1OILLH TYPE STANDARD TABLE OF E1OILLH,
      WA_E1OILLH TYPE E1OILLH,
      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: <E1OILLH> TYPE E1OILLH.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1OILLH.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1OILLH
  INTO TABLE IT_E1OILLH.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1OILLH
*  INTO TABLE @DATA(IT_E1OILLH2).
*--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_E1OILLH INDEX 1 INTO DATA(WA_E1OILLH2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1OILLH ASSIGNING <E1OILLH>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1OILLH>-LIDNO = 1.
<E1OILLH>-LIDADDON = 1.
<E1OILLH>-LIDTYPE = 1.
<E1OILLH>-CONTRTYP = 1.
<E1OILLH>-LIDDESC = 1.

ENDLOOP.

LOOP AT IT_E1OILLH INTO WA_E1OILLH.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1OILLH-LIDDEPOT, sy-vline,
  WA_E1OILLH-LID3COD1, sy-vline,
  WA_E1OILLH-LIDACTIND, sy-vline,
  WA_E1OILLH-LIDDELIND, sy-vline,
  WA_E1OILLH-LIDBLKIND, sy-vline,
  WA_E1OILLH-LID3RDPRTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1OILLH 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_E1OILLH 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_E1OILLH INTO WA_E1OILLH.


*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 LIDNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E1OILLH-LIDNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1OILLH-LIDNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MMDOCNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_E1OILLH-MMDOCNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1OILLH-MMDOCNR.
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_E1OILLH_STR, 
LIDNO TYPE STRING,
LIDADDON TYPE STRING,
LIDTYPE TYPE STRING,
CONTRTYP TYPE STRING,
LIDDESC TYPE STRING,
LIDDEPOT TYPE STRING,
LID3COD1 TYPE STRING,
LIDACTIND TYPE STRING,
LIDDELIND TYPE STRING,
LIDBLKIND TYPE STRING,
LID3RDPRTY TYPE STRING,
MATNR3RDP TYPE STRING,
MATTXT3RDP TYPE STRING,
CUST3RDP TYPE STRING,
MATNRTAS TYPE STRING,
ADDITTAS TYPE STRING,
LIDTAS TYPE STRING,
MMDOCNR TYPE STRING,
MMDITMNR TYPE STRING,
TASGRP1 TYPE STRING,
TASGRP2 TYPE STRING,
FUNCGROUP TYPE STRING,
TASCFLAG TYPE STRING,
USERFIELD1 TYPE STRING,
USERFIELD2 TYPE STRING,
USERFIELD3 TYPE STRING,
USERFIELD4 TYPE STRING,
USERFIELD5 TYPE STRING,
USERFIELD6 TYPE STRING,
USERFIELD7 TYPE STRING,
USERFIELD8 TYPE STRING,
USERFIELD9 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1OILLH_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_E1OILLH_STR-LIDNO sy-vline 
WA_E1OILLH_STR-LIDADDON sy-vline 
WA_E1OILLH_STR-LIDTYPE sy-vline 
WA_E1OILLH_STR-CONTRTYP sy-vline 
WA_E1OILLH_STR-LIDDESC sy-vline 
WA_E1OILLH_STR-LIDDEPOT sy-vline 
WA_E1OILLH_STR-LID3COD1 sy-vline 
WA_E1OILLH_STR-LIDACTIND sy-vline 
WA_E1OILLH_STR-LIDDELIND sy-vline 
WA_E1OILLH_STR-LIDBLKIND sy-vline 
WA_E1OILLH_STR-LID3RDPRTY sy-vline 
WA_E1OILLH_STR-MATNR3RDP sy-vline 
WA_E1OILLH_STR-MATTXT3RDP sy-vline 
WA_E1OILLH_STR-CUST3RDP sy-vline 
WA_E1OILLH_STR-MATNRTAS sy-vline 
WA_E1OILLH_STR-ADDITTAS sy-vline 
WA_E1OILLH_STR-LIDTAS sy-vline 
WA_E1OILLH_STR-MMDOCNR sy-vline 
WA_E1OILLH_STR-MMDITMNR sy-vline 
WA_E1OILLH_STR-TASGRP1 sy-vline 
WA_E1OILLH_STR-TASGRP2 sy-vline 
WA_E1OILLH_STR-FUNCGROUP sy-vline 
WA_E1OILLH_STR-TASCFLAG sy-vline 
WA_E1OILLH_STR-USERFIELD1 sy-vline 
WA_E1OILLH_STR-USERFIELD2 sy-vline 
WA_E1OILLH_STR-USERFIELD3 sy-vline 
WA_E1OILLH_STR-USERFIELD4 sy-vline 
WA_E1OILLH_STR-USERFIELD5 sy-vline 
WA_E1OILLH_STR-USERFIELD6 sy-vline 
WA_E1OILLH_STR-USERFIELD7 sy-vline 
WA_E1OILLH_STR-USERFIELD8 sy-vline 
WA_E1OILLH_STR-USERFIELD9 sy-vline      INTO ld_text SEPARATED BY SPACE.

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