ABAP Select data from SAP table PSHLP_ACTY_MLST_ALV_ST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSHLP_ACTY_MLST_ALV_ST
*  INTO TABLE @DATA(IT_PSHLP_ACTY_MLST_ALV_ST2).
*--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_PSHLP_ACTY_MLST_ALV_ST INDEX 1 INTO DATA(WA_PSHLP_ACTY_MLST_ALV_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSHLP_ACTY_MLST_ALV_ST>-EXCEPTION = 1.
<PSHLP_ACTY_MLST_ALV_ST>-MLST_ZAEHL = 1.
<PSHLP_ACTY_MLST_ALV_ST>-OBJNR = 1.
<PSHLP_ACTY_MLST_ALV_ST>-KTEXT = 1.
<PSHLP_ACTY_MLST_ALV_ST>-MLSTN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSHLP_ACTY_MLST_ALV_ST-KZ_TREND, sy-vline,
  WA_PSHLP_ACTY_MLST_ALV_ST-KZ_LSTWR, sy-vline,
  WA_PSHLP_ACTY_MLST_ALV_ST-KZ_WFLOW, sy-vline,
  WA_PSHLP_ACTY_MLST_ALV_ST-KZ_FAKTP, sy-vline,
  WA_PSHLP_ACTY_MLST_ALV_ST-KZ_FRMST, sy-vline,
  WA_PSHLP_ACTY_MLST_ALV_ST-LST_FERTG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSHLP_ACTY_MLST_ALV_ST 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_PSHLP_ACTY_MLST_ALV_ST 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_PSHLP_ACTY_MLST_ALV_ST INTO WA_PSHLP_ACTY_MLST_ALV_ST.


*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 CUNIT, internal->external for field DELTE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_ACTY_MLST_ALV_ST-DELTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_ACTY_MLST_ALV_ST-DELTE.
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_PSHLP_ACTY_MLST_ALV_ST_STR, 
EXCEPTION TYPE STRING,
MLST_ZAEHL TYPE STRING,
OBJNR TYPE STRING,
KTEXT TYPE STRING,
MLSTN TYPE STRING,
KZ_TREND TYPE STRING,
KZ_LSTWR TYPE STRING,
KZ_WFLOW TYPE STRING,
KZ_FAKTP TYPE STRING,
KZ_FRMST TYPE STRING,
LST_FERTG TYPE STRING,
FPROZ TYPE STRING,
EDATU TYPE STRING,
ORIG_BASIC_START TYPE STRING,
LAST_BASIC_START TYPE STRING,
EZEIT TYPE STRING,
TEDAT TYPE STRING,
ORIG_BASIC_SCH_START TYPE STRING,
LAST_BASIC_SCH_START TYPE STRING,
TETIM TYPE STRING,
PDATU TYPE STRING,
ORIG_FORECAST_START TYPE STRING,
LAST_FORECAST_START TYPE STRING,
PZEIT TYPE STRING,
TPDAT TYPE STRING,
ORIG_FORECAST_SCH_START TYPE STRING,
LAST_FORECAST_SCH_START TYPE STRING,
TPTIM TYPE STRING,
LST_ACTDT TYPE STRING,
ORIG_ACTUAL_START TYPE STRING,
LAST_ACTUAL_START TYPE STRING,
LST_ACTTM TYPE STRING,
LATED TYPE STRING,
DLTAS TYPE STRING,
DELTA TYPE STRING,
DELTE TYPE STRING,
PRCNT TYPE STRING,
CELLTAB TYPE STRING,
COLOR_TAB TYPE STRING,
ACTIVE TYPE STRING,
DISPLAY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSHLP_ACTY_MLST_ALV_ST_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_PSHLP_ACTY_MLST_ALV_ST_STR-EXCEPTION sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-MLST_ZAEHL sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-OBJNR sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-KTEXT sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-MLSTN sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-KZ_TREND sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-KZ_LSTWR sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-KZ_WFLOW sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-KZ_FAKTP sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-KZ_FRMST sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LST_FERTG sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-FPROZ sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-EDATU sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-ORIG_BASIC_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LAST_BASIC_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-EZEIT sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-TEDAT sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-ORIG_BASIC_SCH_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LAST_BASIC_SCH_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-TETIM sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-PDATU sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-ORIG_FORECAST_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LAST_FORECAST_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-PZEIT sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-TPDAT sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-ORIG_FORECAST_SCH_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LAST_FORECAST_SCH_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-TPTIM sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LST_ACTDT sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-ORIG_ACTUAL_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LAST_ACTUAL_START sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LST_ACTTM sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-LATED sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-DLTAS sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-DELTA sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-DELTE sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-PRCNT sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-CELLTAB sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-COLOR_TAB sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-ACTIVE sy-vline 
WA_PSHLP_ACTY_MLST_ALV_ST_STR-DISPLAY sy-vline      INTO ld_text SEPARATED BY SPACE.

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