ABAP Select data from SAP table CRMT_ACT_JRNL_PRDSSTD_FLDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_ACT_JRNL_PRDSSTD_FLDS
*  INTO TABLE @DATA(IT_CRMT_ACT_JRNL_PRDSSTD_FLDS2).
*--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_CRMT_ACT_JRNL_PRDSSTD_FLDS INDEX 1 INTO DATA(WA_CRMT_ACT_JRNL_PRDSSTD_FLDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_ACT_JRNL_PRDSSTD_FLDS>-BATCH_ID = 1.
<CRMT_ACT_JRNL_PRDSSTD_FLDS>-BRGEW = 1.
<CRMT_ACT_JRNL_PRDSSTD_FLDS>-NTGEW = 1.
<CRMT_ACT_JRNL_PRDSSTD_FLDS>-GEWEI = 1.
<CRMT_ACT_JRNL_PRDSSTD_FLDS>-VOLUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-VOLEH, sy-vline,
  WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-NROFSAM, sy-vline,
  WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-SAMRETURN, sy-vline,
  WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-SAMTOBESENT, sy-vline,
  WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-DISCUSS, sy-vline,
  WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-PRPRIO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_ACT_JRNL_PRDSSTD_FLDS 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_CRMT_ACT_JRNL_PRDSSTD_FLDS 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_CRMT_ACT_JRNL_PRDSSTD_FLDS INTO WA_CRMT_ACT_JRNL_PRDSSTD_FLDS.


*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 GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-GEWEI.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field PROCESS_QTY_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-PROCESS_QTY_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_ACT_JRNL_PRDSSTD_FLDS-PROCESS_QTY_UNIT.
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_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR, 
BATCH_ID TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
NROFSAM TYPE STRING,
SAMRETURN TYPE STRING,
SAMTOBESENT TYPE STRING,
DISCUSS TYPE STRING,
PRPRIO TYPE STRING,
STATUS TYPE STRING,
EXPLOSION TYPE STRING,
PROCESS_QTY_UNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_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_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-BATCH_ID sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-BRGEW sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-NTGEW sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-GEWEI sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-VOLUM sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-VOLEH sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-NROFSAM sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-SAMRETURN sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-SAMTOBESENT sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-DISCUSS sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-PRPRIO sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-STATUS sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-EXPLOSION sy-vline 
WA_CRMT_ACT_JRNL_PRDSSTD_FLDS_STR-PROCESS_QTY_UNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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