ABAP Select data from SAP table ISM_MSO_S_KEY_POSTPONE_IN_CHK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISM_MSO_S_KEY_POSTPONE_IN_CHK
*  INTO TABLE @DATA(IT_ISM_MSO_S_KEY_POSTPONE_IN_CHK2).
*--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_ISM_MSO_S_KEY_POSTPONE_IN_CHK INDEX 1 INTO DATA(WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISM_MSO_S_KEY_POSTPONE_IN_CHK>-ORDER = 1.
<ISM_MSO_S_KEY_POSTPONE_IN_CHK>-VBELN = 1.
<ISM_MSO_S_KEY_POSTPONE_IN_CHK>-POSEX = 1.
<ISM_MSO_S_KEY_POSTPONE_IN_CHK>-POSTPONE_DELIV = 1.
<ISM_MSO_S_KEY_POSTPONE_IN_CHK>-PVA = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-BEZUGSTYP, sy-vline,
  WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-LIEFERART, sy-vline,
  WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-XDELIV_FIXED, sy-vline,
  WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-GUELTIGVON, sy-vline,
  WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-GUELTIGBIS, sy-vline,
  WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-BEZUGGRD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK 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_ISM_MSO_S_KEY_POSTPONE_IN_CHK 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_ISM_MSO_S_KEY_POSTPONE_IN_CHK INTO WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK.


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

*Conversion exit ALPHA, internal->external for field PVA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-PVA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-PVA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNWE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-KUNWE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-KUNWE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-ADRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BEABLST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-BEABLST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-BEABLST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MCAMP, internal->external for field CAMPAIGN
CALL FUNCTION 'CONVERSION_EXIT_MCAMP_OUTPUT'
  EXPORTING
    input =                      WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-CAMPAIGN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-CAMPAIGN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DELIVSPLIT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-DELIVSPLIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK-DELIVSPLIT.
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_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR, 
ORDER TYPE STRING,
VBELN TYPE STRING,
POSEX TYPE STRING,
POSTPONE_DELIV TYPE STRING,
PVA TYPE STRING,
BEZUGSTYP TYPE STRING,
LIEFERART TYPE STRING,
XDELIV_FIXED TYPE STRING,
GUELTIGVON TYPE STRING,
GUELTIGBIS TYPE STRING,
BEZUGGRD TYPE STRING,
KUNWE TYPE STRING,
LOGADR TYPE STRING,
ADRNR TYPE STRING,
ADRESSVAR TYPE STRING,
BEABLST TYPE STRING,
CAMPAIGN TYPE STRING,
DELIVSPLIT TYPE STRING,
XVACPACK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_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_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-ORDER sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-VBELN sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-POSEX sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-POSTPONE_DELIV sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-PVA sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-BEZUGSTYP sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-LIEFERART sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-XDELIV_FIXED sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-GUELTIGVON sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-GUELTIGBIS sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-BEZUGGRD sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-KUNWE sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-LOGADR sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-ADRNR sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-ADRESSVAR sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-BEABLST sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-CAMPAIGN sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-DELIVSPLIT sy-vline 
WA_ISM_MSO_S_KEY_POSTPONE_IN_CHK_STR-XVACPACK sy-vline      INTO ld_text SEPARATED BY SPACE.

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