ABAP Select data from SAP table J_1UF_REEI 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_REEI 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_REEI. 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_REEI 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_REEI TYPE STANDARD TABLE OF J_1UF_REEI,
      WA_J_1UF_REEI TYPE J_1UF_REEI,
      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_REEI> TYPE J_1UF_REEI.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_J_1UF_REEI.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM J_1UF_REEI
  INTO TABLE IT_J_1UF_REEI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM J_1UF_REEI
*  INTO TABLE @DATA(IT_J_1UF_REEI2).
*--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_REEI INDEX 1 INTO DATA(WA_J_1UF_REEI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_J_1UF_REEI ASSIGNING <J_1UF_REEI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<J_1UF_REEI>-UMKRS = 1.
<J_1UF_REEI>-BUKRS = 1.
<J_1UF_REEI>-QUART = 1.
<J_1UF_REEI>-PERIO = 1.
<J_1UF_REEI>-SEQNR = 1.

ENDLOOP.

LOOP AT IT_J_1UF_REEI INTO WA_J_1UF_REEI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_J_1UF_REEI-BELNR_ORIG, sy-vline,
  WA_J_1UF_REEI-BUDAT, sy-vline,
  WA_J_1UF_REEI-BLDAT, sy-vline,
  WA_J_1UF_REEI-BKTXT, sy-vline,
  WA_J_1UF_REEI-BELNR, sy-vline,
  WA_J_1UF_REEI-LIFNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_J_1UF_REEI 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_REEI 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_REEI INTO WA_J_1UF_REEI.


*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_ORIG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-BELNR_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-BELNR_ORIG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field WINHW
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-WINHW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-WINHW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR07
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR07
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR07.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR08
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR08
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR08.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR09
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR09
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR09.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR10
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR10
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR10.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR11
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR11
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR11.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR12
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR12
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR12.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR13
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR13
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR13.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU152, internal->external for field PUR14
CALL FUNCTION 'CONVERSION_EXIT_AU152_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-PUR14
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-PUR14.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_J_1UF_REEI-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_J_1UF_REEI-GJAHR.
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_REEI_STR, 
UMKRS TYPE STRING,
BUKRS TYPE STRING,
QUART TYPE STRING,
PERIO TYPE STRING,
SEQNR TYPE STRING,
BELNR_ORIG TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
BKTXT TYPE STRING,
BELNR TYPE STRING,
LIFNR TYPE STRING,
XBLNR TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME3 TYPE STRING,
NAME4 TYPE STRING,
STCD1 TYPE STRING,
WINHW TYPE STRING,
PUR07 TYPE STRING,
PUR08 TYPE STRING,
PUR09 TYPE STRING,
PUR10 TYPE STRING,
PUR11 TYPE STRING,
PUR12 TYPE STRING,
PUR13 TYPE STRING,
PUR14 TYPE STRING,
PYDAT TYPE STRING,
DOCTYP TYPE STRING,
ADJUSTMENTS TYPE STRING,
GJAHR TYPE STRING,
ERPN TYPE STRING,
ACTIVITY TYPE STRING,
BRANCH TYPE STRING,
USRFLAG TYPE STRING,
BUSINESS_AREA TYPE STRING,
VAT_CODE TYPE STRING,
INTCNUM TYPE STRING,
EXTCNUM TYPE STRING,
TAXINV_BLDAT TYPE STRING,
REG_NUM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_J_1UF_REEI_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_REEI_STR-UMKRS sy-vline 
WA_J_1UF_REEI_STR-BUKRS sy-vline 
WA_J_1UF_REEI_STR-QUART sy-vline 
WA_J_1UF_REEI_STR-PERIO sy-vline 
WA_J_1UF_REEI_STR-SEQNR sy-vline 
WA_J_1UF_REEI_STR-BELNR_ORIG sy-vline 
WA_J_1UF_REEI_STR-BUDAT sy-vline 
WA_J_1UF_REEI_STR-BLDAT sy-vline 
WA_J_1UF_REEI_STR-BKTXT sy-vline 
WA_J_1UF_REEI_STR-BELNR sy-vline 
WA_J_1UF_REEI_STR-LIFNR sy-vline 
WA_J_1UF_REEI_STR-XBLNR sy-vline 
WA_J_1UF_REEI_STR-NAME1 sy-vline 
WA_J_1UF_REEI_STR-NAME2 sy-vline 
WA_J_1UF_REEI_STR-NAME3 sy-vline 
WA_J_1UF_REEI_STR-NAME4 sy-vline 
WA_J_1UF_REEI_STR-STCD1 sy-vline 
WA_J_1UF_REEI_STR-WINHW sy-vline 
WA_J_1UF_REEI_STR-PUR07 sy-vline 
WA_J_1UF_REEI_STR-PUR08 sy-vline 
WA_J_1UF_REEI_STR-PUR09 sy-vline 
WA_J_1UF_REEI_STR-PUR10 sy-vline 
WA_J_1UF_REEI_STR-PUR11 sy-vline 
WA_J_1UF_REEI_STR-PUR12 sy-vline 
WA_J_1UF_REEI_STR-PUR13 sy-vline 
WA_J_1UF_REEI_STR-PUR14 sy-vline 
WA_J_1UF_REEI_STR-PYDAT sy-vline 
WA_J_1UF_REEI_STR-DOCTYP sy-vline 
WA_J_1UF_REEI_STR-ADJUSTMENTS sy-vline 
WA_J_1UF_REEI_STR-GJAHR sy-vline 
WA_J_1UF_REEI_STR-ERPN sy-vline 
WA_J_1UF_REEI_STR-ACTIVITY sy-vline 
WA_J_1UF_REEI_STR-BRANCH sy-vline 
WA_J_1UF_REEI_STR-USRFLAG sy-vline 
WA_J_1UF_REEI_STR-BUSINESS_AREA sy-vline 
WA_J_1UF_REEI_STR-VAT_CODE sy-vline 
WA_J_1UF_REEI_STR-INTCNUM sy-vline 
WA_J_1UF_REEI_STR-EXTCNUM sy-vline 
WA_J_1UF_REEI_STR-TAXINV_BLDAT sy-vline 
WA_J_1UF_REEI_STR-REG_NUM sy-vline      INTO ld_text SEPARATED BY SPACE.

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