ABAP Select data from SAP table J_1UF_MEMO_ITEM into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP J_1UF_MEMO_ITEM 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_1UF_MEMO_ITEM. 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_1UF_MEMO_ITEM 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_1UF_MEMO_ITEM TYPE STANDARD TABLE OF J_1UF_MEMO_ITEM,
      WA_J_1UF_MEMO_ITEM TYPE J_1UF_MEMO_ITEM,
      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_1UF_MEMO_ITEM> TYPE J_1UF_MEMO_ITEM.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UF_MEMO_ITEM.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UF_MEMO_ITEM
  INTO TABLE IT_J_1UF_MEMO_ITEM.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UF_MEMO_ITEM
*  INTO TABLE @DATA(IT_J_1UF_MEMO_ITEM2).
*--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_1UF_MEMO_ITEM INDEX 1 INTO DATA(WA_J_1UF_MEMO_ITEM2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UF_MEMO_ITEM ASSIGNING <J_1UF_MEMO_ITEM>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UF_MEMO_ITEM>-DOCNUM = 1.
<J_1UF_MEMO_ITEM>-BUKRS = 1.
<J_1UF_MEMO_ITEM>-MEMO_BELNR = 1.
<J_1UF_MEMO_ITEM>-MEMO_GJAHR = 1.
<J_1UF_MEMO_ITEM>-MEMO_VBELN = 1.

ENDLOOP.

LOOP AT IT_J_1UF_MEMO_ITEM INTO WA_J_1UF_MEMO_ITEM.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UF_MEMO_ITEM-MEMO_POSNR, sy-vline,
  WA_J_1UF_MEMO_ITEM-MEMO_MWSKZ, sy-vline,
  WA_J_1UF_MEMO_ITEM-MEMO_MATNR, sy-vline,
  WA_J_1UF_MEMO_ITEM-MEMO_MEINS, sy-vline,
  WA_J_1UF_MEMO_ITEM-MEMO_PRICE, sy-vline,
  WA_J_1UF_MEMO_ITEM-MEMO_PRICE_LONG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UF_MEMO_ITEM 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_1UF_MEMO_ITEM 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_1UF_MEMO_ITEM INTO WA_J_1UF_MEMO_ITEM.


*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 MEMO_BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-MEMO_BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-MEMO_BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field MEMO_GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-MEMO_GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-MEMO_GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MEMO_VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-MEMO_VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-MEMO_VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MEMO_MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-MEMO_MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-MEMO_MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEMO_MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-MEMO_MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-MEMO_MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field MEMO_DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-MEMO_DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-MEMO_DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORDNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-ORDNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-ORDNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INV_VBELN_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-INV_VBELN_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-INV_VBELN_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field DMBTR
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-DMBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-DMBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field TI_GJAHR_REF
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-TI_GJAHR_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-TI_GJAHR_REF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TI_BELNR_REF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_MEMO_ITEM-TI_BELNR_REF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_MEMO_ITEM-TI_BELNR_REF.
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_1UF_MEMO_ITEM_STR, 
DOCNUM TYPE STRING,
BUKRS TYPE STRING,
MEMO_BELNR TYPE STRING,
MEMO_GJAHR TYPE STRING,
MEMO_VBELN TYPE STRING,
MEMO_POSNR TYPE STRING,
MEMO_MWSKZ TYPE STRING,
MEMO_MATNR TYPE STRING,
MEMO_MEINS TYPE STRING,
MEMO_PRICE TYPE STRING,
MEMO_PRICE_LONG TYPE STRING,
MEMO_MENGE TYPE STRING,
MEMO_DMBTR TYPE STRING,
ORDNUM TYPE STRING,
ORDPOS TYPE STRING,
INV_VBELN_REF TYPE STRING,
INV_POSNR_REF TYPE STRING,
COR_TYPE TYPE STRING,
MWSKZ TYPE STRING,
DMBTR TYPE STRING,
MENGE TYPE STRING,
MENGE_LONG TYPE STRING,
SGTXT TYPE STRING,
ZUONR TYPE STRING,
GSBER TYPE STRING,
SHKZG TYPE STRING,
TI_GJAHR_REF TYPE STRING,
TI_BELNR_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UF_MEMO_ITEM_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_1UF_MEMO_ITEM_STR-DOCNUM sy-vline 
WA_J_1UF_MEMO_ITEM_STR-BUKRS sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_BELNR sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_GJAHR sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_VBELN sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_POSNR sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_MWSKZ sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_MATNR sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_MEINS sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_PRICE sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_PRICE_LONG sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_MENGE sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MEMO_DMBTR sy-vline 
WA_J_1UF_MEMO_ITEM_STR-ORDNUM sy-vline 
WA_J_1UF_MEMO_ITEM_STR-ORDPOS sy-vline 
WA_J_1UF_MEMO_ITEM_STR-INV_VBELN_REF sy-vline 
WA_J_1UF_MEMO_ITEM_STR-INV_POSNR_REF sy-vline 
WA_J_1UF_MEMO_ITEM_STR-COR_TYPE sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MWSKZ sy-vline 
WA_J_1UF_MEMO_ITEM_STR-DMBTR sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MENGE sy-vline 
WA_J_1UF_MEMO_ITEM_STR-MENGE_LONG sy-vline 
WA_J_1UF_MEMO_ITEM_STR-SGTXT sy-vline 
WA_J_1UF_MEMO_ITEM_STR-ZUONR sy-vline 
WA_J_1UF_MEMO_ITEM_STR-GSBER sy-vline 
WA_J_1UF_MEMO_ITEM_STR-SHKZG sy-vline 
WA_J_1UF_MEMO_ITEM_STR-TI_GJAHR_REF sy-vline 
WA_J_1UF_MEMO_ITEM_STR-TI_BELNR_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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