ABAP Select data from SAP table V_T7GR4TAX into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_T7GR4TAX 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_T7GR4TAX. 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_T7GR4TAX 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_T7GR4TAX TYPE STANDARD TABLE OF V_T7GR4TAX,
      WA_V_T7GR4TAX TYPE V_T7GR4TAX,
      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_T7GR4TAX> TYPE V_T7GR4TAX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_T7GR4TAX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_T7GR4TAX
  INTO TABLE IT_V_T7GR4TAX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_T7GR4TAX
*  INTO TABLE @DATA(IT_V_T7GR4TAX2).
*--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_T7GR4TAX INDEX 1 INTO DATA(WA_V_T7GR4TAX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_T7GR4TAX ASSIGNING <V_T7GR4TAX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_T7GR4TAX>-MANDT = 1.
<V_T7GR4TAX>-BUKRS = 1.
<V_T7GR4TAX>-PYEAR = 1.
<V_T7GR4TAX>-PMONT = 1.
<V_T7GR4TAX>-ZKIND = 1.

ENDLOOP.

LOOP AT IT_V_T7GR4TAX INTO WA_V_T7GR4TAX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_T7GR4TAX-PERNR, sy-vline,
  WA_V_T7GR4TAX-SEQNR, sy-vline,
  WA_V_T7GR4TAX-PAPER_SYMPL, sy-vline,
  WA_V_T7GR4TAX-AFM, sy-vline,
  WA_V_T7GR4TAX-NACHN, sy-vline,
  WA_V_T7GR4TAX-VORNA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_T7GR4TAX 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_T7GR4TAX 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_T7GR4TAX INTO WA_V_T7GR4TAX.


*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_T7GR4TAX_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
PYEAR TYPE STRING,
PMONT TYPE STRING,
ZKIND TYPE STRING,
PERNR TYPE STRING,
SEQNR TYPE STRING,
PAPER_SYMPL TYPE STRING,
AFM TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
FATHER TYPE STRING,
AMKA TYPE STRING,
CHILD TYPE STRING,
GROSS TYPE STRING,
SICEE TYPE STRING,
NET TYPE STRING,
ALLOD TYPE STRING,
CNTRT TYPE STRING,
TAXFC TYPE STRING,
TAX TYPE STRING,
SOLID TYPE STRING,
STAMP TYPE STRING,
OGA TYPE STRING,
YEAR_RETRO TYPE STRING,
LAW TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_T7GR4TAX_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_T7GR4TAX_STR-MANDT sy-vline 
WA_V_T7GR4TAX_STR-BUKRS sy-vline 
WA_V_T7GR4TAX_STR-PYEAR sy-vline 
WA_V_T7GR4TAX_STR-PMONT sy-vline 
WA_V_T7GR4TAX_STR-ZKIND sy-vline 
WA_V_T7GR4TAX_STR-PERNR sy-vline 
WA_V_T7GR4TAX_STR-SEQNR sy-vline 
WA_V_T7GR4TAX_STR-PAPER_SYMPL sy-vline 
WA_V_T7GR4TAX_STR-AFM sy-vline 
WA_V_T7GR4TAX_STR-NACHN sy-vline 
WA_V_T7GR4TAX_STR-VORNA sy-vline 
WA_V_T7GR4TAX_STR-FATHER sy-vline 
WA_V_T7GR4TAX_STR-AMKA sy-vline 
WA_V_T7GR4TAX_STR-CHILD sy-vline 
WA_V_T7GR4TAX_STR-GROSS sy-vline 
WA_V_T7GR4TAX_STR-SICEE sy-vline 
WA_V_T7GR4TAX_STR-NET sy-vline 
WA_V_T7GR4TAX_STR-ALLOD sy-vline 
WA_V_T7GR4TAX_STR-CNTRT sy-vline 
WA_V_T7GR4TAX_STR-TAXFC sy-vline 
WA_V_T7GR4TAX_STR-TAX sy-vline 
WA_V_T7GR4TAX_STR-SOLID sy-vline 
WA_V_T7GR4TAX_STR-STAMP sy-vline 
WA_V_T7GR4TAX_STR-OGA sy-vline 
WA_V_T7GR4TAX_STR-YEAR_RETRO sy-vline 
WA_V_T7GR4TAX_STR-LAW sy-vline 
WA_V_T7GR4TAX_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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