ABAP Select data from SAP table ISU_PODH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_PODH
*  INTO TABLE @DATA(IT_ISU_PODH2).
*--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_ISU_PODH INDEX 1 INTO DATA(WA_ISU_PODH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_PODH>-CLIENT = 1.
<ISU_PODH>-FRG_GUID = 1.
<ISU_PODH>-VALID_TO = 1.
<ISU_PODH>-VALID_FROM = 1.
<ISU_PODH>-UPNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_PODH-AEDAT, sy-vline,
  WA_ISU_PODH-AENAM, sy-vline,
  WA_ISU_PODH-ANZPERS, sy-vline,
  WA_ISU_PODH-BEGRU, sy-vline,
  WA_ISU_PODH-ERDAT, sy-vline,
  WA_ISU_PODH-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_PODH 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_ISU_PODH 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_ISU_PODH INTO WA_ISU_PODH.


*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 TSTPS, internal->external for field VALID_TO
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ISU_PODH-VALID_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_PODH-VALID_TO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field VALID_FROM
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ISU_PODH-VALID_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_PODH-VALID_FROM.
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_ISU_PODH_STR, 
CLIENT TYPE STRING,
FRG_GUID TYPE STRING,
VALID_TO TYPE STRING,
VALID_FROM TYPE STRING,
UPNAME TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
ANZPERS TYPE STRING,
BEGRU TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
EUIROLED TYPE STRING,
EUIROLET TYPE STRING,
EXT_UI TYPE STRING,
INT_UI TYPE STRING,
LANGU_ISO TYPE STRING,
LGZUSATZ TYPE STRING,
LOEVM TYPE STRING,
PARTNER1 TYPE STRING,
PARTNER2 TYPE STRING,
PARTNER3 TYPE STRING,
SERVICE1 TYPE STRING,
SERVICE2 TYPE STRING,
SERVICE3 TYPE STRING,
SHTXT TYPE STRING,
SPARTE TYPE STRING,
SRVTEXT1 TYPE STRING,
SRVTEXT2 TYPE STRING,
SRVTEXT3 TYPE STRING,
STATUS TYPE STRING,
UICAT TYPE STRING,
UITYPE TYPE STRING,
VBSART TYPE STRING,
VBSARTTXT TYPE STRING,
EHAU_GUID TYPE STRING,
VSTELLE TYPE STRING,
GRID_LTYP TYPE STRING,
GRID_LEVL TYPE STRING,
GRID_ID TYPE STRING,
OUTL_CONT TYPE STRING,
EXT_UI_BW TYPE STRING,
INT_UI_BW TYPE STRING,
FF0047 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_PODH_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_ISU_PODH_STR-CLIENT sy-vline 
WA_ISU_PODH_STR-FRG_GUID sy-vline 
WA_ISU_PODH_STR-VALID_TO sy-vline 
WA_ISU_PODH_STR-VALID_FROM sy-vline 
WA_ISU_PODH_STR-UPNAME sy-vline 
WA_ISU_PODH_STR-AEDAT sy-vline 
WA_ISU_PODH_STR-AENAM sy-vline 
WA_ISU_PODH_STR-ANZPERS sy-vline 
WA_ISU_PODH_STR-BEGRU sy-vline 
WA_ISU_PODH_STR-ERDAT sy-vline 
WA_ISU_PODH_STR-ERNAM sy-vline 
WA_ISU_PODH_STR-EUIROLED sy-vline 
WA_ISU_PODH_STR-EUIROLET sy-vline 
WA_ISU_PODH_STR-EXT_UI sy-vline 
WA_ISU_PODH_STR-INT_UI sy-vline 
WA_ISU_PODH_STR-LANGU_ISO sy-vline 
WA_ISU_PODH_STR-LGZUSATZ sy-vline 
WA_ISU_PODH_STR-LOEVM sy-vline 
WA_ISU_PODH_STR-PARTNER1 sy-vline 
WA_ISU_PODH_STR-PARTNER2 sy-vline 
WA_ISU_PODH_STR-PARTNER3 sy-vline 
WA_ISU_PODH_STR-SERVICE1 sy-vline 
WA_ISU_PODH_STR-SERVICE2 sy-vline 
WA_ISU_PODH_STR-SERVICE3 sy-vline 
WA_ISU_PODH_STR-SHTXT sy-vline 
WA_ISU_PODH_STR-SPARTE sy-vline 
WA_ISU_PODH_STR-SRVTEXT1 sy-vline 
WA_ISU_PODH_STR-SRVTEXT2 sy-vline 
WA_ISU_PODH_STR-SRVTEXT3 sy-vline 
WA_ISU_PODH_STR-STATUS sy-vline 
WA_ISU_PODH_STR-UICAT sy-vline 
WA_ISU_PODH_STR-UITYPE sy-vline 
WA_ISU_PODH_STR-VBSART sy-vline 
WA_ISU_PODH_STR-VBSARTTXT sy-vline 
WA_ISU_PODH_STR-EHAU_GUID sy-vline 
WA_ISU_PODH_STR-VSTELLE sy-vline 
WA_ISU_PODH_STR-GRID_LTYP sy-vline 
WA_ISU_PODH_STR-GRID_LEVL sy-vline 
WA_ISU_PODH_STR-GRID_ID sy-vline 
WA_ISU_PODH_STR-OUTL_CONT sy-vline 
WA_ISU_PODH_STR-EXT_UI_BW sy-vline 
WA_ISU_PODH_STR-INT_UI_BW sy-vline 
WA_ISU_PODH_STR-FF0047 sy-vline      INTO ld_text SEPARATED BY SPACE.

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