ABAP Select data from SAP table RHTEXT_INFOTAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RHTEXT_INFOTAB
*  INTO TABLE @DATA(IT_RHTEXT_INFOTAB2).
*--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_RHTEXT_INFOTAB INDEX 1 INTO DATA(WA_RHTEXT_INFOTAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RHTEXT_INFOTAB>-TABNAME = 1.
<RHTEXT_INFOTAB>-FIELDNAME = 1.
<RHTEXT_INFOTAB>-REPTEXT = 1.
<RHTEXT_INFOTAB>-SCRTEXT_S = 1.
<RHTEXT_INFOTAB>-SCRTEXT_M = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RHTEXT_INFOTAB-SCRTEXT_L, sy-vline,
  WA_RHTEXT_INFOTAB-HEADLEN, sy-vline,
  WA_RHTEXT_INFOTAB-SCRLEN1, sy-vline,
  WA_RHTEXT_INFOTAB-SCRLEN2, sy-vline,
  WA_RHTEXT_INFOTAB-SCRLEN3, sy-vline,
  WA_RHTEXT_INFOTAB-OFFSET, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RHTEXT_INFOTAB 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_RHTEXT_INFOTAB 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_RHTEXT_INFOTAB INTO WA_RHTEXT_INFOTAB.


*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_RHTEXT_INFOTAB_STR, 
TABNAME TYPE STRING,
FIELDNAME TYPE STRING,
REPTEXT TYPE STRING,
SCRTEXT_S TYPE STRING,
SCRTEXT_M TYPE STRING,
SCRTEXT_L TYPE STRING,
HEADLEN TYPE STRING,
SCRLEN1 TYPE STRING,
SCRLEN2 TYPE STRING,
SCRLEN3 TYPE STRING,
OFFSET TYPE STRING,
LENG TYPE STRING,
DOMNAME TYPE STRING,
CHECKTABLE TYPE STRING,
TEXTTABLE TYPE STRING,
TEXTEXIST TYPE STRING,
ORIGIN TYPE STRING,
TEXTFIELD1 TYPE STRING,
TEXTFIELD2 TYPE STRING,
FIELDLENG1 TYPE STRING,
FIELDLENG2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RHTEXT_INFOTAB_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_RHTEXT_INFOTAB_STR-TABNAME sy-vline 
WA_RHTEXT_INFOTAB_STR-FIELDNAME sy-vline 
WA_RHTEXT_INFOTAB_STR-REPTEXT sy-vline 
WA_RHTEXT_INFOTAB_STR-SCRTEXT_S sy-vline 
WA_RHTEXT_INFOTAB_STR-SCRTEXT_M sy-vline 
WA_RHTEXT_INFOTAB_STR-SCRTEXT_L sy-vline 
WA_RHTEXT_INFOTAB_STR-HEADLEN sy-vline 
WA_RHTEXT_INFOTAB_STR-SCRLEN1 sy-vline 
WA_RHTEXT_INFOTAB_STR-SCRLEN2 sy-vline 
WA_RHTEXT_INFOTAB_STR-SCRLEN3 sy-vline 
WA_RHTEXT_INFOTAB_STR-OFFSET sy-vline 
WA_RHTEXT_INFOTAB_STR-LENG sy-vline 
WA_RHTEXT_INFOTAB_STR-DOMNAME sy-vline 
WA_RHTEXT_INFOTAB_STR-CHECKTABLE sy-vline 
WA_RHTEXT_INFOTAB_STR-TEXTTABLE sy-vline 
WA_RHTEXT_INFOTAB_STR-TEXTEXIST sy-vline 
WA_RHTEXT_INFOTAB_STR-ORIGIN sy-vline 
WA_RHTEXT_INFOTAB_STR-TEXTFIELD1 sy-vline 
WA_RHTEXT_INFOTAB_STR-TEXTFIELD2 sy-vline 
WA_RHTEXT_INFOTAB_STR-FIELDLENG1 sy-vline 
WA_RHTEXT_INFOTAB_STR-FIELDLENG2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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