ABAP Select data from SAP table PSHLP_WBS_DATE_COMP_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_WBS_DATE_COMP_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_WBS_DATE_COMP_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_WBS_DATE_COMP_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_WBS_DATE_COMP_ST TYPE STANDARD TABLE OF PSHLP_WBS_DATE_COMP_ST,
      WA_PSHLP_WBS_DATE_COMP_ST TYPE PSHLP_WBS_DATE_COMP_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_WBS_DATE_COMP_ST> TYPE PSHLP_WBS_DATE_COMP_ST.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSHLP_WBS_DATE_COMP_ST
*  INTO TABLE @DATA(IT_PSHLP_WBS_DATE_COMP_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_WBS_DATE_COMP_ST INDEX 1 INTO DATA(WA_PSHLP_WBS_DATE_COMP_ST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSHLP_WBS_DATE_COMP_ST>-OBJNR = 1.
<PSHLP_WBS_DATE_COMP_ST>-PSTRT = 1.
<PSHLP_WBS_DATE_COMP_ST>-PDAUR = 1.
<PSHLP_WBS_DATE_COMP_ST>-PSTRM = 1.
<PSHLP_WBS_DATE_COMP_ST>-PSTRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSHLP_WBS_DATE_COMP_ST-PENDE, sy-vline,
  WA_PSHLP_WBS_DATE_COMP_ST-PEINH, sy-vline,
  WA_PSHLP_WBS_DATE_COMP_ST-PETRF, sy-vline,
  WA_PSHLP_WBS_DATE_COMP_ST-PETRM, sy-vline,
  WA_PSHLP_WBS_DATE_COMP_ST-ESTRT, sy-vline,
  WA_PSHLP_WBS_DATE_COMP_ST-EDAUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSHLP_WBS_DATE_COMP_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_WBS_DATE_COMP_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_WBS_DATE_COMP_ST INTO WA_PSHLP_WBS_DATE_COMP_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 PEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_WBS_DATE_COMP_ST-PEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_WBS_DATE_COMP_ST-PEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_WBS_DATE_COMP_ST-EEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_WBS_DATE_COMP_ST-EEINH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field IEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSHLP_WBS_DATE_COMP_ST-IEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSHLP_WBS_DATE_COMP_ST-IEINH.
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_WBS_DATE_COMP_ST_STR, 
OBJNR TYPE STRING,
PSTRT TYPE STRING,
PDAUR TYPE STRING,
PSTRM TYPE STRING,
PSTRS TYPE STRING,
PENDE TYPE STRING,
PEINH TYPE STRING,
PETRF TYPE STRING,
PETRM TYPE STRING,
ESTRT TYPE STRING,
EDAUR TYPE STRING,
ESTRM TYPE STRING,
ESTRS TYPE STRING,
EENDE TYPE STRING,
EEINH TYPE STRING,
EETRF TYPE STRING,
EETRM TYPE STRING,
ISTRT TYPE STRING,
IDAUR TYPE STRING,
VISTR TYPE STRING,
IENDE TYPE STRING,
IEINH TYPE STRING,
VIEND TYPE STRING,
FABKL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSHLP_WBS_DATE_COMP_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_WBS_DATE_COMP_ST_STR-OBJNR sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PSTRT sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PDAUR sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PSTRM sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PSTRS sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PENDE sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PEINH sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PETRF sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-PETRM sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-ESTRT sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-EDAUR sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-ESTRM sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-ESTRS sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-EENDE sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-EEINH sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-EETRF sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-EETRM sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-ISTRT sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-IDAUR sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-VISTR sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-IENDE sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-IEINH sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-VIEND sy-vline 
WA_PSHLP_WBS_DATE_COMP_ST_STR-FABKL sy-vline      INTO ld_text SEPARATED BY SPACE.

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