ABAP Select data from SAP table J_1UFCM_ALV_PAYM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1UFCM_ALV_PAYM 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 J_1UFCM_ALV_PAYM. 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 J_1UFCM_ALV_PAYM 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_J_1UFCM_ALV_PAYM TYPE STANDARD TABLE OF J_1UFCM_ALV_PAYM,
      WA_J_1UFCM_ALV_PAYM TYPE J_1UFCM_ALV_PAYM,
      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: <J_1UFCM_ALV_PAYM> TYPE J_1UFCM_ALV_PAYM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UFCM_ALV_PAYM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UFCM_ALV_PAYM
  INTO TABLE IT_J_1UFCM_ALV_PAYM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UFCM_ALV_PAYM
*  INTO TABLE @DATA(IT_J_1UFCM_ALV_PAYM2).
*--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_J_1UFCM_ALV_PAYM INDEX 1 INTO DATA(WA_J_1UFCM_ALV_PAYM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UFCM_ALV_PAYM ASSIGNING <J_1UFCM_ALV_PAYM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UFCM_ALV_PAYM>-ICON = 1.
<J_1UFCM_ALV_PAYM>-BUKRS = 1.
<J_1UFCM_ALV_PAYM>-BELNR = 1.
<J_1UFCM_ALV_PAYM>-GJAHR = 1.
<J_1UFCM_ALV_PAYM>-BUZEI = 1.

ENDLOOP.

LOOP AT IT_J_1UFCM_ALV_PAYM INTO WA_J_1UFCM_ALV_PAYM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UFCM_ALV_PAYM-DOC_TYPE_FI, sy-vline,
  WA_J_1UFCM_ALV_PAYM-LIFNR, sy-vline,
  WA_J_1UFCM_ALV_PAYM-ZUONR, sy-vline,
  WA_J_1UFCM_ALV_PAYM-BLART, sy-vline,
  WA_J_1UFCM_ALV_PAYM-BUDAT, sy-vline,
  WA_J_1UFCM_ALV_PAYM-BLDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UFCM_ALV_PAYM 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_J_1UFCM_ALV_PAYM 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_J_1UFCM_ALV_PAYM INTO WA_J_1UFCM_ALV_PAYM.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFCM_ALV_PAYM-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFCM_ALV_PAYM-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFCM_ALV_PAYM-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFCM_ALV_PAYM-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFCM_ALV_PAYM-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFCM_ALV_PAYM-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REBZG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFCM_ALV_PAYM-REBZG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFCM_ALV_PAYM-REBZG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field REBZJ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFCM_ALV_PAYM-REBZJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFCM_ALV_PAYM-REBZJ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UFCM_ALV_PAYM-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UFCM_ALV_PAYM-AUGBL.
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_J_1UFCM_ALV_PAYM_STR, 
ICON TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
DOC_TYPE_FI TYPE STRING,
LIFNR TYPE STRING,
ZUONR TYPE STRING,
BLART TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
HWAER TYPE STRING,
WAERS TYPE STRING,
TOTAL_MNT_LC TYPE STRING,
AVAIL_MNT_LC TYPE STRING,
UMSKZ TYPE STRING,
BSCHL TYPE STRING,
VENDOR_NAME TYPE STRING,
XBLNR TYPE STRING,
BKTXT TYPE STRING,
REBZG TYPE STRING,
REBZT TYPE STRING,
REBZJ TYPE STRING,
AUGBL TYPE STRING,
AUGDT TYPE STRING,
GSBER TYPE STRING,
LOCKED TYPE STRING,
LOCKED_USER TYPE STRING,
DESCR TYPE STRING,
DOC_TYPE_PAYM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UFCM_ALV_PAYM_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_J_1UFCM_ALV_PAYM_STR-ICON sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BUKRS sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BELNR sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-GJAHR sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BUZEI sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-DOC_TYPE_FI sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-LIFNR sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-ZUONR sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BLART sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BUDAT sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BLDAT sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-HWAER sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-WAERS sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-TOTAL_MNT_LC sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-AVAIL_MNT_LC sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-UMSKZ sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BSCHL sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-VENDOR_NAME sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-XBLNR sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-BKTXT sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-REBZG sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-REBZT sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-REBZJ sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-AUGBL sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-AUGDT sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-GSBER sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-LOCKED sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-LOCKED_USER sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-DESCR sy-vline 
WA_J_1UFCM_ALV_PAYM_STR-DOC_TYPE_PAYM sy-vline      INTO ld_text SEPARATED BY SPACE.

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