ABAP Select data from SAP table ALMPRNODE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ALMPRNODE
*  INTO TABLE @DATA(IT_ALMPRNODE2).
*--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_ALMPRNODE INDEX 1 INTO DATA(WA_ALMPRNODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ALMPRNODE>-MARKED = 1.
<ALMPRNODE>-NODE_KEY = 1.
<ALMPRNODE>-PARENT_KEY = 1.
<ALMPRNODE>-TID = 1.
<ALMPRNODE>-MTSYSID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ALMPRNODE-MTMCNAME, sy-vline,
  WA_ALMPRNODE-MTNUMRANGE, sy-vline,
  WA_ALMPRNODE-MTUID, sy-vline,
  WA_ALMPRNODE-MTCLASS, sy-vline,
  WA_ALMPRNODE-MTINDEX, sy-vline,
  WA_ALMPRNODE-EXTINDEX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ALMPRNODE 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_ALMPRNODE 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_ALMPRNODE INTO WA_ALMPRNODE.


*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_ALMPRNODE_STR, 
MARKED TYPE STRING,
NODE_KEY TYPE STRING,
PARENT_KEY TYPE STRING,
TID TYPE STRING,
MTSYSID TYPE STRING,
MTMCNAME TYPE STRING,
MTNUMRANGE TYPE STRING,
MTUID TYPE STRING,
MTCLASS TYPE STRING,
MTINDEX TYPE STRING,
EXTINDEX TYPE STRING,
PARAMBAG TYPE STRING,
MTENAME TYPE STRING,
MTESHORTNM TYPE STRING,
MTECLASS TYPE STRING,
MTESUBTYPE TYPE STRING,
MTEICON TYPE STRING,
ACTUALVAL TYPE STRING,
ACTUALSEV TYPE STRING,
CURVALDATE TYPE STRING,
CURVALTIME TYPE STRING,
CURVALTEXT TYPE STRING,
AID TYPE STRING,
ALSYSID TYPE STRING,
MSEGNAME TYPE STRING,
ALUNIQNUM TYPE STRING,
ALINDEX TYPE STRING,
ALERTDATE TYPE STRING,
ALERTTIME TYPE STRING,
DUMMYALIGN TYPE STRING,
TID_OF_AID TYPE STRING,
MTSYSID TYPE STRING,
MTMCNAME TYPE STRING,
MTNUMRANGE TYPE STRING,
MTUID TYPE STRING,
MTCLASS TYPE STRING,
MTINDEX TYPE STRING,
EXTINDEX TYPE STRING,
MTE_OF_AID TYPE STRING,
TMPMTEOAID TYPE STRING,
HIGHALVAL TYPE STRING,
HIGHALSEV TYPE STRING,
ALERTDATE TYPE STRING,
ALERTTIME TYPE STRING,
ALERTTEXT TYPE STRING,
ALPARAMS TYPE STRING,
MSGCLASS TYPE STRING,
MSGID TYPE STRING,
MSGARG1 TYPE STRING,
ARGTYPE1 TYPE STRING,
MSGARG2 TYPE STRING,
ARGTYPE2 TYPE STRING,
MSGARG3 TYPE STRING,
ARGTYPE3 TYPE STRING,
MSGARG4 TYPE STRING,
ARGTYPE4 TYPE STRING,
MSGTEXT TYPE STRING,
TMPALTEXT TYPE STRING,
TMPALDATE TYPE STRING,
TMPALTIME TYPE STRING,
COLLMETHOD TYPE STRING,
ANALMETHOD TYPE STRING,
ONALMETHOD TYPE STRING,
IS_FOLDER TYPE STRING,
HAS_VCHLDR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ALMPRNODE_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_ALMPRNODE_STR-MARKED sy-vline 
WA_ALMPRNODE_STR-NODE_KEY sy-vline 
WA_ALMPRNODE_STR-PARENT_KEY sy-vline 
WA_ALMPRNODE_STR-TID sy-vline 
WA_ALMPRNODE_STR-MTSYSID sy-vline 
WA_ALMPRNODE_STR-MTMCNAME sy-vline 
WA_ALMPRNODE_STR-MTNUMRANGE sy-vline 
WA_ALMPRNODE_STR-MTUID sy-vline 
WA_ALMPRNODE_STR-MTCLASS sy-vline 
WA_ALMPRNODE_STR-MTINDEX sy-vline 
WA_ALMPRNODE_STR-EXTINDEX sy-vline 
WA_ALMPRNODE_STR-PARAMBAG sy-vline 
WA_ALMPRNODE_STR-MTENAME sy-vline 
WA_ALMPRNODE_STR-MTESHORTNM sy-vline 
WA_ALMPRNODE_STR-MTECLASS sy-vline 
WA_ALMPRNODE_STR-MTESUBTYPE sy-vline 
WA_ALMPRNODE_STR-MTEICON sy-vline 
WA_ALMPRNODE_STR-ACTUALVAL sy-vline 
WA_ALMPRNODE_STR-ACTUALSEV sy-vline 
WA_ALMPRNODE_STR-CURVALDATE sy-vline 
WA_ALMPRNODE_STR-CURVALTIME sy-vline 
WA_ALMPRNODE_STR-CURVALTEXT sy-vline 
WA_ALMPRNODE_STR-AID sy-vline 
WA_ALMPRNODE_STR-ALSYSID sy-vline 
WA_ALMPRNODE_STR-MSEGNAME sy-vline 
WA_ALMPRNODE_STR-ALUNIQNUM sy-vline 
WA_ALMPRNODE_STR-ALINDEX sy-vline 
WA_ALMPRNODE_STR-ALERTDATE sy-vline 
WA_ALMPRNODE_STR-ALERTTIME sy-vline 
WA_ALMPRNODE_STR-DUMMYALIGN sy-vline 
WA_ALMPRNODE_STR-TID_OF_AID sy-vline 
WA_ALMPRNODE_STR-MTSYSID sy-vline 
WA_ALMPRNODE_STR-MTMCNAME sy-vline 
WA_ALMPRNODE_STR-MTNUMRANGE sy-vline 
WA_ALMPRNODE_STR-MTUID sy-vline 
WA_ALMPRNODE_STR-MTCLASS sy-vline 
WA_ALMPRNODE_STR-MTINDEX sy-vline 
WA_ALMPRNODE_STR-EXTINDEX sy-vline 
WA_ALMPRNODE_STR-MTE_OF_AID sy-vline 
WA_ALMPRNODE_STR-TMPMTEOAID sy-vline 
WA_ALMPRNODE_STR-HIGHALVAL sy-vline 
WA_ALMPRNODE_STR-HIGHALSEV sy-vline 
WA_ALMPRNODE_STR-ALERTDATE sy-vline 
WA_ALMPRNODE_STR-ALERTTIME sy-vline 
WA_ALMPRNODE_STR-ALERTTEXT sy-vline 
WA_ALMPRNODE_STR-ALPARAMS sy-vline 
WA_ALMPRNODE_STR-MSGCLASS sy-vline 
WA_ALMPRNODE_STR-MSGID sy-vline 
WA_ALMPRNODE_STR-MSGARG1 sy-vline 
WA_ALMPRNODE_STR-ARGTYPE1 sy-vline 
WA_ALMPRNODE_STR-MSGARG2 sy-vline 
WA_ALMPRNODE_STR-ARGTYPE2 sy-vline 
WA_ALMPRNODE_STR-MSGARG3 sy-vline 
WA_ALMPRNODE_STR-ARGTYPE3 sy-vline 
WA_ALMPRNODE_STR-MSGARG4 sy-vline 
WA_ALMPRNODE_STR-ARGTYPE4 sy-vline 
WA_ALMPRNODE_STR-MSGTEXT sy-vline 
WA_ALMPRNODE_STR-TMPALTEXT sy-vline 
WA_ALMPRNODE_STR-TMPALDATE sy-vline 
WA_ALMPRNODE_STR-TMPALTIME sy-vline 
WA_ALMPRNODE_STR-COLLMETHOD sy-vline 
WA_ALMPRNODE_STR-ANALMETHOD sy-vline 
WA_ALMPRNODE_STR-ONALMETHOD sy-vline 
WA_ALMPRNODE_STR-IS_FOLDER sy-vline 
WA_ALMPRNODE_STR-HAS_VCHLDR sy-vline      INTO ld_text SEPARATED BY SPACE.

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