ABAP Select data from SAP table VGHO_IMRG_STD_H into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VGHO_IMRG_STD_H
*  INTO TABLE @DATA(IT_VGHO_IMRG_STD_H2).
*--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_VGHO_IMRG_STD_H INDEX 1 INTO DATA(WA_VGHO_IMRG_STD_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VGHO_IMRG_STD_H>-MANDT = 1.
<VGHO_IMRG_STD_H>-NETID = 1.
<VGHO_IMRG_STD_H>-NETOBJ = 1.
<VGHO_IMRG_STD_H>-ALLOC_MATERIAL = 1.
<VGHO_IMRG_STD_H>-QUANTITY_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VGHO_IMRG_STD_H-PROD_TIMESTAMP, sy-vline,
  WA_VGHO_IMRG_STD_H-ALLOC_TYPE, sy-vline,
  WA_VGHO_IMRG_STD_H-FREQUENCY, sy-vline,
  WA_VGHO_IMRG_STD_H-GHO_MEAS_CAT_ID, sy-vline,
  WA_VGHO_IMRG_STD_H-BUS_KEY, sy-vline,
  WA_VGHO_IMRG_STD_H-MDOCM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VGHO_IMRG_STD_H 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_VGHO_IMRG_STD_H 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_VGHO_IMRG_STD_H INTO WA_VGHO_IMRG_STD_H.


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

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

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

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

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

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

*Conversion exit GHONO, internal->external for field TO_PROD_NETWORK
CALL FUNCTION 'CONVERSION_EXIT_GHONO_OUTPUT'
  EXPORTING
    input =                      WA_VGHO_IMRG_STD_H-TO_PROD_NETWORK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VGHO_IMRG_STD_H-TO_PROD_NETWORK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GHONO, internal->external for field TO_NETWORK_OBJ
CALL FUNCTION 'CONVERSION_EXIT_GHONO_OUTPUT'
  EXPORTING
    input =                      WA_VGHO_IMRG_STD_H-TO_NETWORK_OBJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VGHO_IMRG_STD_H-TO_NETWORK_OBJ.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GHONO, internal->external for field ORIGINATING_MP
CALL FUNCTION 'CONVERSION_EXIT_GHONO_OUTPUT'
  EXPORTING
    input =                      WA_VGHO_IMRG_STD_H-ORIGINATING_MP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VGHO_IMRG_STD_H-ORIGINATING_MP.
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_VGHO_IMRG_STD_H_STR, 
MANDT TYPE STRING,
NETID TYPE STRING,
NETOBJ TYPE STRING,
ALLOC_MATERIAL TYPE STRING,
QUANTITY_TYPE TYPE STRING,
PROD_TIMESTAMP TYPE STRING,
ALLOC_TYPE TYPE STRING,
FREQUENCY TYPE STRING,
GHO_MEAS_CAT_ID TYPE STRING,
BUS_KEY TYPE STRING,
MDOCM TYPE STRING,
MRH_SUB_FLAG TYPE STRING,
MANUAL_FLAG TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_TST TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_TST TYPE STRING,
REF_NETWORK_ID TYPE STRING,
REF_NODE_ID TYPE STRING,
BUSINESS_STATUS TYPE STRING,
STATUS_OBJECT_NUMBER TYPE STRING,
TO_PROD_NETWORK TYPE STRING,
TO_NETOBJ_TYPE TYPE STRING,
TO_NETWORK_OBJ TYPE STRING,
LD_OIL_WO_RECOV TYPE STRING,
TRNSP_NO TYPE STRING,
TRNSP_REF_NO TYPE STRING,
TKT_NO TYPE STRING,
TRANSP_NAME TYPE STRING,
ORIGINATING_MP TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VGHO_IMRG_STD_H_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_VGHO_IMRG_STD_H_STR-MANDT sy-vline 
WA_VGHO_IMRG_STD_H_STR-NETID sy-vline 
WA_VGHO_IMRG_STD_H_STR-NETOBJ sy-vline 
WA_VGHO_IMRG_STD_H_STR-ALLOC_MATERIAL sy-vline 
WA_VGHO_IMRG_STD_H_STR-QUANTITY_TYPE sy-vline 
WA_VGHO_IMRG_STD_H_STR-PROD_TIMESTAMP sy-vline 
WA_VGHO_IMRG_STD_H_STR-ALLOC_TYPE sy-vline 
WA_VGHO_IMRG_STD_H_STR-FREQUENCY sy-vline 
WA_VGHO_IMRG_STD_H_STR-GHO_MEAS_CAT_ID sy-vline 
WA_VGHO_IMRG_STD_H_STR-BUS_KEY sy-vline 
WA_VGHO_IMRG_STD_H_STR-MDOCM sy-vline 
WA_VGHO_IMRG_STD_H_STR-MRH_SUB_FLAG sy-vline 
WA_VGHO_IMRG_STD_H_STR-MANUAL_FLAG sy-vline 
WA_VGHO_IMRG_STD_H_STR-CREATED_BY sy-vline 
WA_VGHO_IMRG_STD_H_STR-CREATED_TST sy-vline 
WA_VGHO_IMRG_STD_H_STR-CHANGED_BY sy-vline 
WA_VGHO_IMRG_STD_H_STR-CHANGED_TST sy-vline 
WA_VGHO_IMRG_STD_H_STR-REF_NETWORK_ID sy-vline 
WA_VGHO_IMRG_STD_H_STR-REF_NODE_ID sy-vline 
WA_VGHO_IMRG_STD_H_STR-BUSINESS_STATUS sy-vline 
WA_VGHO_IMRG_STD_H_STR-STATUS_OBJECT_NUMBER sy-vline 
WA_VGHO_IMRG_STD_H_STR-TO_PROD_NETWORK sy-vline 
WA_VGHO_IMRG_STD_H_STR-TO_NETOBJ_TYPE sy-vline 
WA_VGHO_IMRG_STD_H_STR-TO_NETWORK_OBJ sy-vline 
WA_VGHO_IMRG_STD_H_STR-LD_OIL_WO_RECOV sy-vline 
WA_VGHO_IMRG_STD_H_STR-TRNSP_NO sy-vline 
WA_VGHO_IMRG_STD_H_STR-TRNSP_REF_NO sy-vline 
WA_VGHO_IMRG_STD_H_STR-TKT_NO sy-vline 
WA_VGHO_IMRG_STD_H_STR-TRANSP_NAME sy-vline 
WA_VGHO_IMRG_STD_H_STR-ORIGINATING_MP sy-vline 
WA_VGHO_IMRG_STD_H_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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