ABAP Select data from SAP table CRCAPACITY_EXACT_CIF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRCAPACITY_EXACT_CIF
*  INTO TABLE @DATA(IT_CRCAPACITY_EXACT_CIF2).
*--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_CRCAPACITY_EXACT_CIF INDEX 1 INTO DATA(WA_CRCAPACITY_EXACT_CIF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRCAPACITY_EXACT_CIF>-PERSN = 1.
<CRCAPACITY_EXACT_CIF>-KAPID = 1.
<CRCAPACITY_EXACT_CIF>-VERSN = 1.
<CRCAPACITY_EXACT_CIF>-DATUM = 1.
<CRCAPACITY_EXACT_CIF>-BEGZT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRCAPACITY_EXACT_CIF-ENDZT, sy-vline,
  WA_CRCAPACITY_EXACT_CIF-EINZT, sy-vline,
  WA_CRCAPACITY_EXACT_CIF-EINZTS, sy-vline,
  WA_CRCAPACITY_EXACT_CIF-KAPAZ, sy-vline,
  WA_CRCAPACITY_EXACT_CIF-KAPAZS, sy-vline,
  WA_CRCAPACITY_EXACT_CIF-PDAYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRCAPACITY_EXACT_CIF 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_CRCAPACITY_EXACT_CIF 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_CRCAPACITY_EXACT_CIF INTO WA_CRCAPACITY_EXACT_CIF.


*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_CRCAPACITY_EXACT_CIF_STR, 
PERSN TYPE STRING,
KAPID TYPE STRING,
VERSN TYPE STRING,
DATUM TYPE STRING,
BEGZT TYPE STRING,
ENDZT TYPE STRING,
EINZT TYPE STRING,
EINZTS TYPE STRING,
KAPAZ TYPE STRING,
KAPAZS TYPE STRING,
PDAYS TYPE STRING,
NGRAD TYPE STRING,
EXACT_INTERVAL TYPE STRING,
MIDNIGHT_SHIFT TYPE STRING,
SHIFT_START TYPE STRING,
PAUSE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRCAPACITY_EXACT_CIF_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_CRCAPACITY_EXACT_CIF_STR-PERSN sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-KAPID sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-VERSN sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-DATUM sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-BEGZT sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-ENDZT sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-EINZT sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-EINZTS sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-KAPAZ sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-KAPAZS sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-PDAYS sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-NGRAD sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-EXACT_INTERVAL sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-MIDNIGHT_SHIFT sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-SHIFT_START sy-vline 
WA_CRCAPACITY_EXACT_CIF_STR-PAUSE sy-vline      INTO ld_text SEPARATED BY SPACE.

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