ABAP Select data from SAP table RLPSHPDIA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RLPSHPDIA
*  INTO TABLE @DATA(IT_RLPSHPDIA2).
*--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_RLPSHPDIA INDEX 1 INTO DATA(WA_RLPSHPDIA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RLPSHPDIA>-MANDT = 1.
<RLPSHPDIA>-PSHPASS = 1.
<RLPSHPDIA>-PSHPNO = 1.
<RLPSHPDIA>-ACCTNO = 1.
<RLPSHPDIA>-VALFROM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RLPSHPDIA-PSHPSTATE, sy-vline,
  WA_RLPSHPDIA-POSTEXIST, sy-vline,
  WA_RLPSHPDIA-ACMAN, sy-vline,
  WA_RLPSHPDIA-ACMANTY, sy-vline,
  WA_RLPSHPDIA-ACHOL, sy-vline,
  WA_RLPSHPDIA-ACHOLTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RLPSHPDIA 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_RLPSHPDIA 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_RLPSHPDIA INTO WA_RLPSHPDIA.


*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 PSHPNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RLPSHPDIA-PSHPNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLPSHPDIA-PSHPNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCTNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RLPSHPDIA-ACCTNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RLPSHPDIA-ACCTNO.
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_RLPSHPDIA_STR, 
MANDT TYPE STRING,
PSHPASS TYPE STRING,
PSHPNO TYPE STRING,
ACCTNO TYPE STRING,
VALFROM TYPE STRING,
PSHPSTATE TYPE STRING,
POSTEXIST TYPE STRING,
ACMAN TYPE STRING,
ACMANTY TYPE STRING,
ACHOL TYPE STRING,
ACHOLTY TYPE STRING,
VALTO TYPE STRING,
ACMAN_NAME1 TYPE STRING,
ACMAN_ORT01 TYPE STRING,
ACHOL_NAME1 TYPE STRING,
ACHOL_ORT01 TYPE STRING,
SELKZ TYPE STRING,
ICON_REL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RLPSHPDIA_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_RLPSHPDIA_STR-MANDT sy-vline 
WA_RLPSHPDIA_STR-PSHPASS sy-vline 
WA_RLPSHPDIA_STR-PSHPNO sy-vline 
WA_RLPSHPDIA_STR-ACCTNO sy-vline 
WA_RLPSHPDIA_STR-VALFROM sy-vline 
WA_RLPSHPDIA_STR-PSHPSTATE sy-vline 
WA_RLPSHPDIA_STR-POSTEXIST sy-vline 
WA_RLPSHPDIA_STR-ACMAN sy-vline 
WA_RLPSHPDIA_STR-ACMANTY sy-vline 
WA_RLPSHPDIA_STR-ACHOL sy-vline 
WA_RLPSHPDIA_STR-ACHOLTY sy-vline 
WA_RLPSHPDIA_STR-VALTO sy-vline 
WA_RLPSHPDIA_STR-ACMAN_NAME1 sy-vline 
WA_RLPSHPDIA_STR-ACMAN_ORT01 sy-vline 
WA_RLPSHPDIA_STR-ACHOL_NAME1 sy-vline 
WA_RLPSHPDIA_STR-ACHOL_ORT01 sy-vline 
WA_RLPSHPDIA_STR-SELKZ sy-vline 
WA_RLPSHPDIA_STR-ICON_REL sy-vline      INTO ld_text SEPARATED BY SPACE.

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