ABAP Select data from SAP table V_T7HRMW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T7HRMW 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 V_T7HRMW. 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 V_T7HRMW 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_V_T7HRMW TYPE STANDARD TABLE OF V_T7HRMW,
      WA_V_T7HRMW TYPE V_T7HRMW,
      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: <V_T7HRMW> TYPE V_T7HRMW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T7HRMW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T7HRMW
  INTO TABLE IT_V_T7HRMW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T7HRMW
*  INTO TABLE @DATA(IT_V_T7HRMW2).
*--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_V_T7HRMW INDEX 1 INTO DATA(WA_V_T7HRMW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T7HRMW ASSIGNING <V_T7HRMW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T7HRMW>-MANDT = 1.
<V_T7HRMW>-MUNCO = 1.
<V_T7HRMW>-BUKRS = 1.
<V_T7HRMW>-MUNTX = 1.
<V_T7HRMW>-BUTXT = 1.

ENDLOOP.

LOOP AT IT_V_T7HRMW INTO WA_V_T7HRMW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T7HRMW-VGRUP, sy-vline,
  WA_V_T7HRMW-EMFSL, sy-vline,
  WA_V_T7HRMW-EMFTX, sy-vline,
  WA_V_T7HRMW-BKPLZ, sy-vline,
  WA_V_T7HRMW-BKORT, sy-vline,
  WA_V_T7HRMW-BANKS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T7HRMW 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_V_T7HRMW 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_V_T7HRMW INTO WA_V_T7HRMW.


*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_V_T7HRMW_STR, 
MANDT TYPE STRING,
MUNCO TYPE STRING,
BUKRS TYPE STRING,
MUNTX TYPE STRING,
BUTXT TYPE STRING,
VGRUP TYPE STRING,
EMFSL TYPE STRING,
EMFTX TYPE STRING,
BKPLZ TYPE STRING,
BKORT TYPE STRING,
BANKS TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
ZLSCH TYPE STRING,
ZWECK TYPE STRING,
PRITY TYPE STRING,
CODE1 TYPE STRING,
CODE2 TYPE STRING,
CODE3 TYPE STRING,
REFCM TYPE STRING,
REFCR TYPE STRING,
REFDM TYPE STRING,
REFDE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T7HRMW_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_V_T7HRMW_STR-MANDT sy-vline 
WA_V_T7HRMW_STR-MUNCO sy-vline 
WA_V_T7HRMW_STR-BUKRS sy-vline 
WA_V_T7HRMW_STR-MUNTX sy-vline 
WA_V_T7HRMW_STR-BUTXT sy-vline 
WA_V_T7HRMW_STR-VGRUP sy-vline 
WA_V_T7HRMW_STR-EMFSL sy-vline 
WA_V_T7HRMW_STR-EMFTX sy-vline 
WA_V_T7HRMW_STR-BKPLZ sy-vline 
WA_V_T7HRMW_STR-BKORT sy-vline 
WA_V_T7HRMW_STR-BANKS sy-vline 
WA_V_T7HRMW_STR-BANKL sy-vline 
WA_V_T7HRMW_STR-BANKN sy-vline 
WA_V_T7HRMW_STR-ZLSCH sy-vline 
WA_V_T7HRMW_STR-ZWECK sy-vline 
WA_V_T7HRMW_STR-PRITY sy-vline 
WA_V_T7HRMW_STR-CODE1 sy-vline 
WA_V_T7HRMW_STR-CODE2 sy-vline 
WA_V_T7HRMW_STR-CODE3 sy-vline 
WA_V_T7HRMW_STR-REFCM sy-vline 
WA_V_T7HRMW_STR-REFCR sy-vline 
WA_V_T7HRMW_STR-REFDM sy-vline 
WA_V_T7HRMW_STR-REFDE sy-vline      INTO ld_text SEPARATED BY SPACE.

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