ABAP Select data from SAP table PKR_FORM_SILOS_GROUP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKR_FORM_SILOS_GROUP
*  INTO TABLE @DATA(IT_PKR_FORM_SILOS_GROUP2).
*--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_PKR_FORM_SILOS_GROUP INDEX 1 INTO DATA(WA_PKR_FORM_SILOS_GROUP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PKR_FORM_SILOS_GROUP>-PERNR = 1.
<PKR_FORM_SILOS_GROUP>-SEQNO = 1.
<PKR_FORM_SILOS_GROUP>-BUKRS = 1.
<PKR_FORM_SILOS_GROUP>-SIMOD = 1.
<PKR_FORM_SILOS_GROUP>-REPPI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKR_FORM_SILOS_GROUP-NP_BPNUM, sy-vline,
  WA_PKR_FORM_SILOS_GROUP-MICNR, sy-vline,
  WA_PKR_FORM_SILOS_GROUP-REGNO, sy-vline,
  WA_PKR_FORM_SILOS_GROUP-ENAME, sy-vline,
  WA_PKR_FORM_SILOS_GROUP-ENAME08, sy-vline,
  WA_PKR_FORM_SILOS_GROUP-NATIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKR_FORM_SILOS_GROUP 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_PKR_FORM_SILOS_GROUP 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_PKR_FORM_SILOS_GROUP INTO WA_PKR_FORM_SILOS_GROUP.


*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 MICNR, internal->external for field MICNR
CALL FUNCTION 'CONVERSION_EXIT_MICNR_OUTPUT'
  EXPORTING
    input =                      WA_PKR_FORM_SILOS_GROUP-MICNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKR_FORM_SILOS_GROUP-MICNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit REGNO, internal->external for field REGNO
CALL FUNCTION 'CONVERSION_EXIT_REGNO_OUTPUT'
  EXPORTING
    input =                      WA_PKR_FORM_SILOS_GROUP-REGNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKR_FORM_SILOS_GROUP-REGNO.
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_PKR_FORM_SILOS_GROUP_STR, 
PERNR TYPE STRING,
SEQNO TYPE STRING,
BUKRS TYPE STRING,
SIMOD TYPE STRING,
REPPI TYPE STRING,
NP_BPNUM TYPE STRING,
MICNR TYPE STRING,
REGNO TYPE STRING,
ENAME TYPE STRING,
ENAME08 TYPE STRING,
NATIO TYPE STRING,
MALE TYPE STRING,
FEMALE TYPE STRING,
ENTXT TYPE STRING,
MICOD TYPE STRING,
MCTXT TYPE STRING,
SIMCA TYPE STRING,
PRGRD TYPE STRING,
CUGRD TYPE STRING,
SALAR TYPE STRING,
MSCAM TYPE STRING,
GRADE TYPE STRING,
APPDT TYPE STRING,
ACQDT TYPE STRING,
CHRDT TYPE STRING,
CHRDT02 TYPE STRING,
CHRDT32 TYPE STRING,
CHRDT64 TYPE STRING,
CHGDT TYPE STRING,
CHGYY TYPE STRING,
MMCHG TYPE STRING,
DDCHG TYPE STRING,
LOSDT TYPE STRING,
RSMDT TYPE STRING,
PSTLZ TYPE STRING,
ORT01 TYPE STRING,
TELNR TYPE STRING,
FDNHM TYPE STRING,
DEPNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKR_FORM_SILOS_GROUP_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_PKR_FORM_SILOS_GROUP_STR-PERNR sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-SEQNO sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-BUKRS sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-SIMOD sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-REPPI sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-NP_BPNUM sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-MICNR sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-REGNO sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-ENAME sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-ENAME08 sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-NATIO sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-MALE sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-FEMALE sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-ENTXT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-MICOD sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-MCTXT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-SIMCA sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-PRGRD sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-CUGRD sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-SALAR sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-MSCAM sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-GRADE sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-APPDT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-ACQDT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-CHRDT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-CHRDT02 sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-CHRDT32 sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-CHRDT64 sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-CHGDT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-CHGYY sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-MMCHG sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-DDCHG sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-LOSDT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-RSMDT sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-PSTLZ sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-ORT01 sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-TELNR sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-FDNHM sy-vline 
WA_PKR_FORM_SILOS_GROUP_STR-DEPNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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