ABAP Select data from SAP table PGR_TAXH1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PGR_TAXH1 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 PGR_TAXH1. 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 PGR_TAXH1 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_PGR_TAXH1 TYPE STANDARD TABLE OF PGR_TAXH1,
      WA_PGR_TAXH1 TYPE PGR_TAXH1,
      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: <PGR_TAXH1> TYPE PGR_TAXH1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PGR_TAXH1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PGR_TAXH1
  INTO TABLE IT_PGR_TAXH1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PGR_TAXH1
*  INTO TABLE @DATA(IT_PGR_TAXH12).
*--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_PGR_TAXH1 INDEX 1 INTO DATA(WA_PGR_TAXH12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PGR_TAXH1 ASSIGNING <PGR_TAXH1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PGR_TAXH1>-BUKRS = 1.
<PGR_TAXH1>-CMNAM = 1.
<PGR_TAXH1>-CMACT = 1.
<PGR_TAXH1>-CMSTR = 1.
<PGR_TAXH1>-CMSTN = 1.

ENDLOOP.

LOOP AT IT_PGR_TAXH1 INTO WA_PGR_TAXH1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PGR_TAXH1-CMCIT, sy-vline,
  WA_PGR_TAXH1-CMAFM, sy-vline,
  WA_PGR_TAXH1-CMDOY, sy-vline,
  WA_PGR_TAXH1-DOYDE, sy-vline,
  WA_PGR_TAXH1-PSTLZ, sy-vline,
  WA_PGR_TAXH1-CMTEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PGR_TAXH1 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_PGR_TAXH1 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_PGR_TAXH1 INTO WA_PGR_TAXH1.


*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_PGR_TAXH1_STR, 
BUKRS TYPE STRING,
CMNAM TYPE STRING,
CMACT TYPE STRING,
CMSTR TYPE STRING,
CMSTN TYPE STRING,
CMCIT TYPE STRING,
CMAFM TYPE STRING,
CMDOY TYPE STRING,
DOYDE TYPE STRING,
PSTLZ TYPE STRING,
CMTEL TYPE STRING,
CMFAX TYPE STRING,
ANLTX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PGR_TAXH1_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_PGR_TAXH1_STR-BUKRS sy-vline 
WA_PGR_TAXH1_STR-CMNAM sy-vline 
WA_PGR_TAXH1_STR-CMACT sy-vline 
WA_PGR_TAXH1_STR-CMSTR sy-vline 
WA_PGR_TAXH1_STR-CMSTN sy-vline 
WA_PGR_TAXH1_STR-CMCIT sy-vline 
WA_PGR_TAXH1_STR-CMAFM sy-vline 
WA_PGR_TAXH1_STR-CMDOY sy-vline 
WA_PGR_TAXH1_STR-DOYDE sy-vline 
WA_PGR_TAXH1_STR-PSTLZ sy-vline 
WA_PGR_TAXH1_STR-CMTEL sy-vline 
WA_PGR_TAXH1_STR-CMFAX sy-vline 
WA_PGR_TAXH1_STR-ANLTX sy-vline      INTO ld_text SEPARATED BY SPACE.

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