ABAP Select data from SAP table RIHPLAB into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RIHPLAB 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 RIHPLAB. 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 RIHPLAB 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_RIHPLAB TYPE STANDARD TABLE OF RIHPLAB,
      WA_RIHPLAB TYPE RIHPLAB,
      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: <RIHPLAB> TYPE RIHPLAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RIHPLAB
*  INTO TABLE @DATA(IT_RIHPLAB2).
*--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_RIHPLAB INDEX 1 INTO DATA(WA_RIHPLAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RIHPLAB>-PLNTY = 1.
<RIHPLAB>-PLNNR = 1.
<RIHPLAB>-PLNAL = 1.
<RIHPLAB>-PLNRN = 1.
<RIHPLAB>-ALNRN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RIHPLAB-AOBAR, sy-vline,
  WA_RIHPLAB-MIMAX, sy-vline,
  WA_RIHPLAB-AENNR, sy-vline,
  WA_RIHPLAB-ZEINH, sy-vline,
  WA_RIHPLAB-DAUER, sy-vline,
  WA_RIHPLAB-DAUKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RIHPLAB 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_RIHPLAB 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_RIHPLAB INTO WA_RIHPLAB.


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

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

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

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

*Conversion exit AOBAR, internal->external for field AOBAR
CALL FUNCTION 'CONVERSION_EXIT_AOBAR_OUTPUT'
  EXPORTING
    input =                      WA_RIHPLAB-AOBAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHPLAB-AOBAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field ZEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RIHPLAB-ZEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHPLAB-ZEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHPLAB-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHPLAB-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORN1
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHPLAB-VORN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHPLAB-VORN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORN2
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHPLAB-VORN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHPLAB-VORN2.
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_RIHPLAB_STR, 
PLNTY TYPE STRING,
PLNNR TYPE STRING,
PLNAL TYPE STRING,
PLNRN TYPE STRING,
ALNRN TYPE STRING,
AOBAR TYPE STRING,
MIMAX TYPE STRING,
AENNR TYPE STRING,
ZEINH TYPE STRING,
DAUER TYPE STRING,
DAUKZ TYPE STRING,
VORNC TYPE STRING,
NCVOR TYPE STRING,
PRZNT TYPE STRING,
PROVG TYPE STRING,
WERKS TYPE STRING,
ANDAT TYPE STRING,
ANNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
VORNR TYPE STRING,
LTXA1 TYPE STRING,
NCHKZ TYPE STRING,
VORN1 TYPE STRING,
LTXN1 TYPE STRING,
VORN2 TYPE STRING,
LTXN2 TYPE STRING,
KTXN1 TYPE STRING,
KTXN2 TYPE STRING,
AOBTX TYPE STRING,
KALTX TYPE STRING,
ARBPL TYPE STRING,
DATUV TYPE STRING,
DATUB TYPE STRING,
KALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RIHPLAB_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_RIHPLAB_STR-PLNTY sy-vline 
WA_RIHPLAB_STR-PLNNR sy-vline 
WA_RIHPLAB_STR-PLNAL sy-vline 
WA_RIHPLAB_STR-PLNRN sy-vline 
WA_RIHPLAB_STR-ALNRN sy-vline 
WA_RIHPLAB_STR-AOBAR sy-vline 
WA_RIHPLAB_STR-MIMAX sy-vline 
WA_RIHPLAB_STR-AENNR sy-vline 
WA_RIHPLAB_STR-ZEINH sy-vline 
WA_RIHPLAB_STR-DAUER sy-vline 
WA_RIHPLAB_STR-DAUKZ sy-vline 
WA_RIHPLAB_STR-VORNC sy-vline 
WA_RIHPLAB_STR-NCVOR sy-vline 
WA_RIHPLAB_STR-PRZNT sy-vline 
WA_RIHPLAB_STR-PROVG sy-vline 
WA_RIHPLAB_STR-WERKS sy-vline 
WA_RIHPLAB_STR-ANDAT sy-vline 
WA_RIHPLAB_STR-ANNAM sy-vline 
WA_RIHPLAB_STR-AEDAT sy-vline 
WA_RIHPLAB_STR-AENAM sy-vline 
WA_RIHPLAB_STR-VORNR sy-vline 
WA_RIHPLAB_STR-LTXA1 sy-vline 
WA_RIHPLAB_STR-NCHKZ sy-vline 
WA_RIHPLAB_STR-VORN1 sy-vline 
WA_RIHPLAB_STR-LTXN1 sy-vline 
WA_RIHPLAB_STR-VORN2 sy-vline 
WA_RIHPLAB_STR-LTXN2 sy-vline 
WA_RIHPLAB_STR-KTXN1 sy-vline 
WA_RIHPLAB_STR-KTXN2 sy-vline 
WA_RIHPLAB_STR-AOBTX sy-vline 
WA_RIHPLAB_STR-KALTX sy-vline 
WA_RIHPLAB_STR-ARBPL sy-vline 
WA_RIHPLAB_STR-DATUV sy-vline 
WA_RIHPLAB_STR-DATUB sy-vline 
WA_RIHPLAB_STR-KALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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