ABAP Select data from SAP table CRSHWCCAPCHG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRSHWCCAPCHG
*  INTO TABLE @DATA(IT_CRSHWCCAPCHG2).
*--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_CRSHWCCAPCHG INDEX 1 INTO DATA(WA_CRSHWCCAPCHG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRSHWCCAPCHG>-MANDT = 1.
<CRSHWCCAPCHG>-WORKCENTERINTERNALID = 1.
<CRSHWCCAPCHG>-WORKCENTERTYPECODE = 1.
<CRSHWCCAPCHG>-CAPACITYSTARTTIME = 1.
<CRSHWCCAPCHG>-CAPACITYENDTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRSHWCCAPCHG-WORKCENTER, sy-vline,
  WA_CRSHWCCAPCHG-PLANT, sy-vline,
  WA_CRSHWCCAPCHG-CAPACITYACTIVEVERSION, sy-vline,
  WA_CRSHWCCAPCHG-CAPACITYINTERNALID, sy-vline,
  WA_CRSHWCCAPCHG-CAPACITYCATEGORYALLOCATION, sy-vline,
  WA_CRSHWCCAPCHG-SHIFTSTARTTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRSHWCCAPCHG 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_CRSHWCCAPCHG 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_CRSHWCCAPCHG INTO WA_CRSHWCCAPCHG.


*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_CRSHWCCAPCHG_STR, 
MANDT TYPE STRING,
WORKCENTERINTERNALID TYPE STRING,
WORKCENTERTYPECODE TYPE STRING,
CAPACITYSTARTTIME TYPE STRING,
CAPACITYENDTIME TYPE STRING,
WORKCENTER TYPE STRING,
PLANT TYPE STRING,
CAPACITYACTIVEVERSION TYPE STRING,
CAPACITYINTERNALID TYPE STRING,
CAPACITYCATEGORYALLOCATION TYPE STRING,
SHIFTSTARTTIME TYPE STRING,
SHIFTENDTIME TYPE STRING,
WORKCENTERCATEGORYCODE TYPE STRING,
WRKCTRCAPDAY1NMBROFCAPACITIES TYPE STRING,
WRKCTRCAPDAY1OPERATINGHOURS TYPE STRING,
WRKCTRCAPDAY1NMBROFCAPFLDCTRL TYPE STRING,
WRKCTRCAPDAY1NMBROFCAPMODIFIED TYPE STRING,
WRKCTRCAPDAY2NMBROFCAPACITIES TYPE STRING,
WRKCTRCAPDAY2OPERATINGHOURS TYPE STRING,
WRKCTRCAPDAY2NMBROFCAPFLDCTRL TYPE STRING,
WRKCTRCAPDAY2NMBROFCAPMODIFIED TYPE STRING,
WRKCTRCAPDAY3NMBROFCAPACITIES TYPE STRING,
WRKCTRCAPDAY3OPERATINGHOURS TYPE STRING,
WRKCTRCAPDAY3NMBROFCAPFLDCTRL TYPE STRING,
WRKCTRCAPDAY3NMBROFCAPMODIFIED TYPE STRING,
WRKCTRCAPDAY4NMBROFCAPACITIES TYPE STRING,
WRKCTRCAPDAY4OPERATINGHOURS TYPE STRING,
WRKCTRCAPDAY4NMBROFCAPFLDCTRL TYPE STRING,
WRKCTRCAPDAY4NMBROFCAPMODIFIED TYPE STRING,
WRKCTRCAPDAY5NMBROFCAPACITIES TYPE STRING,
WRKCTRCAPDAY5OPERATINGHOURS TYPE STRING,
WRKCTRCAPDAY5NMBROFCAPFLDCTRL TYPE STRING,
WRKCTRCAPDAY5NMBROFCAPMODIFIED TYPE STRING,
WRKCTRCAPDAY6NMBROFCAPACITIES TYPE STRING,
WRKCTRCAPDAY6OPERATINGHOURS TYPE STRING,
WRKCTRCAPDAY6NMBROFCAPFLDCTRL TYPE STRING,
WRKCTRCAPDAY6NMBROFCAPMODIFIED TYPE STRING,
WRKCTRCAPDAY7NMBROFCAPACITIES TYPE STRING,
WRKCTRCAPDAY7OPERATINGHOURS TYPE STRING,
WRKCTRCAPDAY7NMBROFCAPFLDCTRL TYPE STRING,
WRKCTRCAPDAY7NMBROFCAPMODIFIED TYPE STRING,
WORKCENTERCAPACITYUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRSHWCCAPCHG_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_CRSHWCCAPCHG_STR-MANDT sy-vline 
WA_CRSHWCCAPCHG_STR-WORKCENTERINTERNALID sy-vline 
WA_CRSHWCCAPCHG_STR-WORKCENTERTYPECODE sy-vline 
WA_CRSHWCCAPCHG_STR-CAPACITYSTARTTIME sy-vline 
WA_CRSHWCCAPCHG_STR-CAPACITYENDTIME sy-vline 
WA_CRSHWCCAPCHG_STR-WORKCENTER sy-vline 
WA_CRSHWCCAPCHG_STR-PLANT sy-vline 
WA_CRSHWCCAPCHG_STR-CAPACITYACTIVEVERSION sy-vline 
WA_CRSHWCCAPCHG_STR-CAPACITYINTERNALID sy-vline 
WA_CRSHWCCAPCHG_STR-CAPACITYCATEGORYALLOCATION sy-vline 
WA_CRSHWCCAPCHG_STR-SHIFTSTARTTIME sy-vline 
WA_CRSHWCCAPCHG_STR-SHIFTENDTIME sy-vline 
WA_CRSHWCCAPCHG_STR-WORKCENTERCATEGORYCODE sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY1NMBROFCAPACITIES sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY1OPERATINGHOURS sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY1NMBROFCAPFLDCTRL sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY1NMBROFCAPMODIFIED sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY2NMBROFCAPACITIES sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY2OPERATINGHOURS sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY2NMBROFCAPFLDCTRL sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY2NMBROFCAPMODIFIED sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY3NMBROFCAPACITIES sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY3OPERATINGHOURS sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY3NMBROFCAPFLDCTRL sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY3NMBROFCAPMODIFIED sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY4NMBROFCAPACITIES sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY4OPERATINGHOURS sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY4NMBROFCAPFLDCTRL sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY4NMBROFCAPMODIFIED sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY5NMBROFCAPACITIES sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY5OPERATINGHOURS sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY5NMBROFCAPFLDCTRL sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY5NMBROFCAPMODIFIED sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY6NMBROFCAPACITIES sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY6OPERATINGHOURS sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY6NMBROFCAPFLDCTRL sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY6NMBROFCAPMODIFIED sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY7NMBROFCAPACITIES sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY7OPERATINGHOURS sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY7NMBROFCAPFLDCTRL sy-vline 
WA_CRSHWCCAPCHG_STR-WRKCTRCAPDAY7NMBROFCAPMODIFIED sy-vline 
WA_CRSHWCCAPCHG_STR-WORKCENTERCAPACITYUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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