ABAP Select data from SAP table CRMT_3123_ALV_ACT_JRNL_UI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMT_3123_ALV_ACT_JRNL_UI 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_3123_ALV_ACT_JRNL_UI. 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_3123_ALV_ACT_JRNL_UI 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_3123_ALV_ACT_JRNL_UI TYPE STANDARD TABLE OF CRMT_3123_ALV_ACT_JRNL_UI,
      WA_CRMT_3123_ALV_ACT_JRNL_UI TYPE CRMT_3123_ALV_ACT_JRNL_UI,
      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_3123_ALV_ACT_JRNL_UI> TYPE CRMT_3123_ALV_ACT_JRNL_UI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRMT_3123_ALV_ACT_JRNL_UI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRMT_3123_ALV_ACT_JRNL_UI
  INTO TABLE IT_CRMT_3123_ALV_ACT_JRNL_UI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_3123_ALV_ACT_JRNL_UI
*  INTO TABLE @DATA(IT_CRMT_3123_ALV_ACT_JRNL_UI2).
*--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_3123_ALV_ACT_JRNL_UI INDEX 1 INTO DATA(WA_CRMT_3123_ALV_ACT_JRNL_UI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRMT_3123_ALV_ACT_JRNL_UI ASSIGNING <CRMT_3123_ALV_ACT_JRNL_UI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_3123_ALV_ACT_JRNL_UI>-GUID = 1.
<CRMT_3123_ALV_ACT_JRNL_UI>-HANDLE = 1.
<CRMT_3123_ALV_ACT_JRNL_UI>-JOURNAL_GUID = 1.
<CRMT_3123_ALV_ACT_JRNL_UI>-DISCUSS = 1.
<CRMT_3123_ALV_ACT_JRNL_UI>-PRPRIO = 1.

ENDLOOP.

LOOP AT IT_CRMT_3123_ALV_ACT_JRNL_UI INTO WA_CRMT_3123_ALV_ACT_JRNL_UI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_3123_ALV_ACT_JRNL_UI-STATUS, sy-vline,
  WA_CRMT_3123_ALV_ACT_JRNL_UI-PROD_HIERARCHY, sy-vline,
  WA_CRMT_3123_ALV_ACT_JRNL_UI-HIERARCHY_TEXT, sy-vline,
  WA_CRMT_3123_ALV_ACT_JRNL_UI-PRODUCT, sy-vline,
  WA_CRMT_3123_ALV_ACT_JRNL_UI-SCHED_GUID, sy-vline,
  WA_CRMT_3123_ALV_ACT_JRNL_UI-ORDERED_PROD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_3123_ALV_ACT_JRNL_UI 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_3123_ALV_ACT_JRNL_UI 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_3123_ALV_ACT_JRNL_UI INTO WA_CRMT_3123_ALV_ACT_JRNL_UI.


*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_3123_ALV_ACT_JRNL_UI-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_3123_ALV_ACT_JRNL_UI-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_3123_ALV_ACT_JRNL_UI-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_3123_ALV_ACT_JRNL_UI-VOLEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PRID1, internal->external for field PRODUCT_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_PRID1_OUTPUT'
  EXPORTING
    input =                      WA_CRMT_3123_ALV_ACT_JRNL_UI-PRODUCT_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_3123_ALV_ACT_JRNL_UI-PRODUCT_NUMBER.
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_3123_ALV_ACT_JRNL_UI-PROCESS_QTY_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMT_3123_ALV_ACT_JRNL_UI-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_3123_ALV_ACT_JRNL_UI_STR, 
GUID TYPE STRING,
HANDLE TYPE STRING,
JOURNAL_GUID TYPE STRING,
DISCUSS TYPE STRING,
PRPRIO TYPE STRING,
STATUS TYPE STRING,
PROD_HIERARCHY TYPE STRING,
HIERARCHY_TEXT TYPE STRING,
PRODUCT TYPE STRING,
SCHED_GUID TYPE STRING,
ORDERED_PROD TYPE STRING,
DESCRIPTION TYPE STRING,
PROD_PR_GROUP TYPE STRING,
PROD_CATEGORY TYPE STRING,
CATEGORY_TEXT TYPE STRING,
BATCH_ID TYPE STRING,
BRGEW TYPE STRING,
NTGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
ALTID_TYPE TYPE STRING,
PRODUCT_NUMBER TYPE STRING,
SAMPLES_GIVEN TYPE STRING,
NROFSAM TYPE STRING,
SAMRETURN TYPE STRING,
SAMTOBESENT TYPE STRING,
ITM_TYPE TYPE STRING,
ITM_TYPE_USAGE TYPE STRING,
PROCESS_QTY_UNIT TYPE STRING,
JOURNAL_TEXT TYPE STRING,
MODE TYPE STRING,
PREFILLED_PRDS TYPE STRING,
CELL TYPE STRING,
PRODUCT_TYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_3123_ALV_ACT_JRNL_UI_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_3123_ALV_ACT_JRNL_UI_STR-GUID sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-HANDLE sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-JOURNAL_GUID sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-DISCUSS sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PRPRIO sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-STATUS sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PROD_HIERARCHY sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-HIERARCHY_TEXT sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PRODUCT sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-SCHED_GUID sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-ORDERED_PROD sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-DESCRIPTION sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PROD_PR_GROUP sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PROD_CATEGORY sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-CATEGORY_TEXT sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-BATCH_ID sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-BRGEW sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-NTGEW sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-GEWEI sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-VOLUM sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-VOLEH sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-ALTID_TYPE sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PRODUCT_NUMBER sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-SAMPLES_GIVEN sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-NROFSAM sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-SAMRETURN sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-SAMTOBESENT sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-ITM_TYPE sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-ITM_TYPE_USAGE sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PROCESS_QTY_UNIT sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-JOURNAL_TEXT sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-MODE sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PREFILLED_PRDS sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-CELL sy-vline 
WA_CRMT_3123_ALV_ACT_JRNL_UI_STR-PRODUCT_TYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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