ABAP Select data from SAP table ESO_S_ERP_EQUIPMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESO_S_ERP_EQUIPMENT
*  INTO TABLE @DATA(IT_ESO_S_ERP_EQUIPMENT2).
*--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_ESO_S_ERP_EQUIPMENT INDEX 1 INTO DATA(WA_ESO_S_ERP_EQUIPMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESO_S_ERP_EQUIPMENT>-EQUNR = 1.
<ESO_S_ERP_EQUIPMENT>-SERNR = 1.
<ESO_S_ERP_EQUIPMENT>-MATNR = 1.
<ESO_S_ERP_EQUIPMENT>-EQTYP = 1.
<ESO_S_ERP_EQUIPMENT>-HERST = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESO_S_ERP_EQUIPMENT-SERGE, sy-vline,
  WA_ESO_S_ERP_EQUIPMENT-BEGRU, sy-vline,
  WA_ESO_S_ERP_EQUIPMENT-EQUNR_EXT, sy-vline,
  WA_ESO_S_ERP_EQUIPMENT-MATNR_EXT, sy-vline,
  WA_ESO_S_ERP_EQUIPMENT-ERNAM, sy-vline,
  WA_ESO_S_ERP_EQUIPMENT-EQART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESO_S_ERP_EQUIPMENT 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_ESO_S_ERP_EQUIPMENT 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_ESO_S_ERP_EQUIPMENT INTO WA_ESO_S_ERP_EQUIPMENT.


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

*Conversion exit GERNR, internal->external for field SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_ERP_EQUIPMENT-SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_ERP_EQUIPMENT-SERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_ERP_EQUIPMENT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_ERP_EQUIPMENT-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field BAUJJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_ERP_EQUIPMENT-BAUJJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_ERP_EQUIPMENT-BAUJJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GERNR, internal->external for field GERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_ERP_EQUIPMENT-GERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_ERP_EQUIPMENT-GERNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field KMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_ERP_EQUIPMENT-KMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_ERP_EQUIPMENT-KMATN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field MGANR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESO_S_ERP_EQUIPMENT-MGANR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESO_S_ERP_EQUIPMENT-MGANR.
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_ESO_S_ERP_EQUIPMENT_STR, 
EQUNR TYPE STRING,
SERNR TYPE STRING,
MATNR TYPE STRING,
EQTYP TYPE STRING,
HERST TYPE STRING,
SERGE TYPE STRING,
BEGRU TYPE STRING,
EQUNR_EXT TYPE STRING,
MATNR_EXT TYPE STRING,
ERNAM TYPE STRING,
EQART TYPE STRING,
GROES TYPE STRING,
ELIEF TYPE STRING,
ELIEF_EXT TYPE STRING,
BAUJJ TYPE STRING,
GERNR TYPE STRING,
EQBER TYPE STRING,
KMATN TYPE STRING,
KMATN_EXT TYPE STRING,
IMRC_POINT TYPE STRING,
MGANR TYPE STRING,
MGANR_EXT TYPE STRING,
SERNR_EXT TYPE STRING,
DOCLINK_DOKOB TYPE STRING,
DOCLINK_OBJKY TYPE STRING,
UII TYPE STRING,
PRTKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESO_S_ERP_EQUIPMENT_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_ESO_S_ERP_EQUIPMENT_STR-EQUNR sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-SERNR sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-MATNR sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-EQTYP sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-HERST sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-SERGE sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-BEGRU sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-EQUNR_EXT sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-MATNR_EXT sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-ERNAM sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-EQART sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-GROES sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-ELIEF sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-ELIEF_EXT sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-BAUJJ sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-GERNR sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-EQBER sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-KMATN sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-KMATN_EXT sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-IMRC_POINT sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-MGANR sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-MGANR_EXT sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-SERNR_EXT sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-DOCLINK_DOKOB sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-DOCLINK_OBJKY sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-UII sy-vline 
WA_ESO_S_ERP_EQUIPMENT_STR-PRTKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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