ABAP Select data from SAP table CMACRFCGRANT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CMACRFCGRANT
*  INTO TABLE @DATA(IT_CMACRFCGRANT2).
*--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_CMACRFCGRANT INDEX 1 INTO DATA(WA_CMACRFCGRANT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CMACRFCGRANT>-GRANT_NBR = 1.
<CMACRFCGRANT>-GRANT_TYPE = 1.
<CMACRFCGRANT>-GRANT_APPROP = 1.
<CMACRFCGRANT>-GRANT_DESCR = 1.
<CMACRFCGRANT>-PERS_REL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CMACRFCGRANT-CONT_ACCT, sy-vline,
  WA_CMACRFCGRANT-CURRENCY, sy-vline,
  WA_CMACRFCGRANT-CURRENCY_ISO, sy-vline,
  WA_CMACRFCGRANT-GRANT_MGMTSYST, sy-vline,
  WA_CMACRFCGRANT-DEF_COT_GRPG, sy-vline,
  WA_CMACRFCGRANT-PAY_MIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CMACRFCGRANT 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_CMACRFCGRANT 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_CMACRFCGRANT INTO WA_CMACRFCGRANT.


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

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

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

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

*Conversion exit ABPSP, internal->external for field WBS_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_CMACRFCGRANT-WBS_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMACRFCGRANT-WBS_ELEM.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CMACRFCGRANT-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CMACRFCGRANT-SEGMENT.
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_CMACRFCGRANT_STR, 
GRANT_NBR TYPE STRING,
GRANT_TYPE TYPE STRING,
GRANT_APPROP TYPE STRING,
GRANT_DESCR TYPE STRING,
PERS_REL TYPE STRING,
CONT_ACCT TYPE STRING,
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
GRANT_MGMTSYST TYPE STRING,
DEF_COT_GRPG TYPE STRING,
PAY_MIN TYPE STRING,
REPAY_EXCL TYPE STRING,
REPAY_MIN TYPE STRING,
REPAY_PRIO TYPE STRING,
COMP_CODE TYPE STRING,
BUS_AREA TYPE STRING,
CO_AREA TYPE STRING,
COSTCENTER TYPE STRING,
ORDERID TYPE STRING,
WBS_ELEM TYPE STRING,
PROFIT_CTR TYPE STRING,
FM_AREA TYPE STRING,
FUNDS_CTR TYPE STRING,
FUND TYPE STRING,
FUNC_AREA TYPE STRING,
GM_GRANT_NBR TYPE STRING,
SEGMENT TYPE STRING,
CMACGRANT_LOCK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CMACRFCGRANT_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_CMACRFCGRANT_STR-GRANT_NBR sy-vline 
WA_CMACRFCGRANT_STR-GRANT_TYPE sy-vline 
WA_CMACRFCGRANT_STR-GRANT_APPROP sy-vline 
WA_CMACRFCGRANT_STR-GRANT_DESCR sy-vline 
WA_CMACRFCGRANT_STR-PERS_REL sy-vline 
WA_CMACRFCGRANT_STR-CONT_ACCT sy-vline 
WA_CMACRFCGRANT_STR-CURRENCY sy-vline 
WA_CMACRFCGRANT_STR-CURRENCY_ISO sy-vline 
WA_CMACRFCGRANT_STR-GRANT_MGMTSYST sy-vline 
WA_CMACRFCGRANT_STR-DEF_COT_GRPG sy-vline 
WA_CMACRFCGRANT_STR-PAY_MIN sy-vline 
WA_CMACRFCGRANT_STR-REPAY_EXCL sy-vline 
WA_CMACRFCGRANT_STR-REPAY_MIN sy-vline 
WA_CMACRFCGRANT_STR-REPAY_PRIO sy-vline 
WA_CMACRFCGRANT_STR-COMP_CODE sy-vline 
WA_CMACRFCGRANT_STR-BUS_AREA sy-vline 
WA_CMACRFCGRANT_STR-CO_AREA sy-vline 
WA_CMACRFCGRANT_STR-COSTCENTER sy-vline 
WA_CMACRFCGRANT_STR-ORDERID sy-vline 
WA_CMACRFCGRANT_STR-WBS_ELEM sy-vline 
WA_CMACRFCGRANT_STR-PROFIT_CTR sy-vline 
WA_CMACRFCGRANT_STR-FM_AREA sy-vline 
WA_CMACRFCGRANT_STR-FUNDS_CTR sy-vline 
WA_CMACRFCGRANT_STR-FUND sy-vline 
WA_CMACRFCGRANT_STR-FUNC_AREA sy-vline 
WA_CMACRFCGRANT_STR-GM_GRANT_NBR sy-vline 
WA_CMACRFCGRANT_STR-SEGMENT sy-vline 
WA_CMACRFCGRANT_STR-CMACGRANT_LOCK sy-vline      INTO ld_text SEPARATED BY SPACE.

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