ABAP Select data from SAP table PAMS_S_BOXES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PAMS_S_BOXES
*  INTO TABLE @DATA(IT_PAMS_S_BOXES2).
*--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_PAMS_S_BOXES INDEX 1 INTO DATA(WA_PAMS_S_BOXES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PAMS_S_BOXES>-MANDT = 1.
<PAMS_S_BOXES>-APPLICATION = 1.
<PAMS_S_BOXES>-ROWKEY_GROUP = 1.
<PAMS_S_BOXES>-ROWKEY_ELEMENT = 1.
<PAMS_S_BOXES>-EQKTX = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PAMS_S_BOXES-EQUNR, sy-vline,
  WA_PAMS_S_BOXES-VHDES, sy-vline,
  WA_PAMS_S_BOXES-LICENSE_NUM, sy-vline,
  WA_PAMS_S_BOXES-KMSTAND, sy-vline,
  WA_PAMS_S_BOXES-MERK01, sy-vline,
  WA_PAMS_S_BOXES-MERK02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PAMS_S_BOXES 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_PAMS_S_BOXES 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_PAMS_S_BOXES INTO WA_PAMS_S_BOXES.


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

*Conversion exit SXIDN, internal->external for field ANFEMAIL
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_PAMS_S_BOXES-ANFEMAIL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PAMS_S_BOXES-ANFEMAIL.
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_PAMS_S_BOXES_STR, 
MANDT TYPE STRING,
APPLICATION TYPE STRING,
ROWKEY_GROUP TYPE STRING,
ROWKEY_ELEMENT TYPE STRING,
EQKTX TYPE STRING,
EQUNR TYPE STRING,
VHDES TYPE STRING,
LICENSE_NUM TYPE STRING,
KMSTAND TYPE STRING,
MERK01 TYPE STRING,
MERK02 TYPE STRING,
MERK03 TYPE STRING,
MERK04 TYPE STRING,
MERK05 TYPE STRING,
MERK06 TYPE STRING,
MERK07 TYPE STRING,
MERK08 TYPE STRING,
MERK09 TYPE STRING,
MERK10 TYPE STRING,
MERK11 TYPE STRING,
MERK12 TYPE STRING,
VHCAT TYPE STRING,
ANZPER TYPE STRING,
ANFNAME1 TYPE STRING,
ANFNAME2 TYPE STRING,
ANFTEL TYPE STRING,
ANFEMAIL TYPE STRING,
FAHRNAME1 TYPE STRING,
FAHRNAME2 TYPE STRING,
FAHRCITY TYPE STRING,
FAHRSTREET TYPE STRING,
FAHRTEL TYPE STRING,
LICENCENR TYPE STRING,
FLEET_NUM TYPE STRING,
FLEET_CAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PAMS_S_BOXES_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_PAMS_S_BOXES_STR-MANDT sy-vline 
WA_PAMS_S_BOXES_STR-APPLICATION sy-vline 
WA_PAMS_S_BOXES_STR-ROWKEY_GROUP sy-vline 
WA_PAMS_S_BOXES_STR-ROWKEY_ELEMENT sy-vline 
WA_PAMS_S_BOXES_STR-EQKTX sy-vline 
WA_PAMS_S_BOXES_STR-EQUNR sy-vline 
WA_PAMS_S_BOXES_STR-VHDES sy-vline 
WA_PAMS_S_BOXES_STR-LICENSE_NUM sy-vline 
WA_PAMS_S_BOXES_STR-KMSTAND sy-vline 
WA_PAMS_S_BOXES_STR-MERK01 sy-vline 
WA_PAMS_S_BOXES_STR-MERK02 sy-vline 
WA_PAMS_S_BOXES_STR-MERK03 sy-vline 
WA_PAMS_S_BOXES_STR-MERK04 sy-vline 
WA_PAMS_S_BOXES_STR-MERK05 sy-vline 
WA_PAMS_S_BOXES_STR-MERK06 sy-vline 
WA_PAMS_S_BOXES_STR-MERK07 sy-vline 
WA_PAMS_S_BOXES_STR-MERK08 sy-vline 
WA_PAMS_S_BOXES_STR-MERK09 sy-vline 
WA_PAMS_S_BOXES_STR-MERK10 sy-vline 
WA_PAMS_S_BOXES_STR-MERK11 sy-vline 
WA_PAMS_S_BOXES_STR-MERK12 sy-vline 
WA_PAMS_S_BOXES_STR-VHCAT sy-vline 
WA_PAMS_S_BOXES_STR-ANZPER sy-vline 
WA_PAMS_S_BOXES_STR-ANFNAME1 sy-vline 
WA_PAMS_S_BOXES_STR-ANFNAME2 sy-vline 
WA_PAMS_S_BOXES_STR-ANFTEL sy-vline 
WA_PAMS_S_BOXES_STR-ANFEMAIL sy-vline 
WA_PAMS_S_BOXES_STR-FAHRNAME1 sy-vline 
WA_PAMS_S_BOXES_STR-FAHRNAME2 sy-vline 
WA_PAMS_S_BOXES_STR-FAHRCITY sy-vline 
WA_PAMS_S_BOXES_STR-FAHRSTREET sy-vline 
WA_PAMS_S_BOXES_STR-FAHRTEL sy-vline 
WA_PAMS_S_BOXES_STR-LICENCENR sy-vline 
WA_PAMS_S_BOXES_STR-FLEET_NUM sy-vline 
WA_PAMS_S_BOXES_STR-FLEET_CAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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