ABAP Select data from SAP table CAUFI into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CAUFI 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 CAUFI. 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 CAUFI 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_CAUFI TYPE STANDARD TABLE OF CAUFI,
      WA_CAUFI TYPE CAUFI,
      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: <CAUFI> TYPE CAUFI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CAUFI
*  INTO TABLE @DATA(IT_CAUFI2).
*--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_CAUFI INDEX 1 INTO DATA(WA_CAUFI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CAUFI>-MANDT = 1.
<CAUFI>-ABELN = 1.
<CAUFI>-ABELP = 1.
<CAUFI>-ABELG = 1.
<CAUFI>-ABELF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CAUFI-FILNR, sy-vline,
  WA_CAUFI-FIWRK, sy-vline,
  WA_CAUFI-EKORG, sy-vline,
  WA_CAUFI-EKGRP, sy-vline,
  WA_CAUFI-ERDAT, sy-vline,
  WA_CAUFI-AEDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CAUFI 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_CAUFI 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_CAUFI INTO WA_CAUFI.


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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CAUFI-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CAUFI-VRKME.
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_CAUFI_STR, 
MANDT TYPE STRING,
ABELN TYPE STRING,
ABELP TYPE STRING,
ABELG TYPE STRING,
ABELF TYPE STRING,
FILNR TYPE STRING,
FIWRK TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
ERDAT TYPE STRING,
AEDAT TYPE STRING,
ERNAM TYPE STRING,
AENAM TYPE STRING,
LFNRU TYPE STRING,
PMNGU TYPE STRING,
IMNGU TYPE STRING,
MMNGU TYPE STRING,
WMNGE TYPE STRING,
AUFME TYPE STRING,
LIEFW TYPE STRING,
EBLNU TYPE STRING,
EBLPU TYPE STRING,
UBSTN TYPE STRING,
UBSTP TYPE STRING,
VBLNU TYPE STRING,
VBLPU TYPE STRING,
BEDAT TYPE STRING,
BEDTP TYPE STRING,
VKDAT TYPE STRING,
VKTYP TYPE STRING,
LEWED TYPE STRING,
VZENT TYPE STRING,
VZWRK TYPE STRING,
VZLFR TYPE STRING,
AAVIT TYPE STRING,
PLIFZ TYPE STRING,
WEBAZ TYPE STRING,
ABFDT TYPE STRING,
ABFTP TYPE STRING,
PSTAB TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
BSTMG TYPE STRING,
BSTME TYPE STRING,
UMLMG TYPE STRING,
UMLME TYPE STRING,
LFMNG TYPE STRING,
VRKME TYPE STRING,
SPERR TYPE STRING,
VQUOT TYPE STRING,
WMERF TYPE STRING,
BMERF TYPE STRING,
BEWZA TYPE STRING,
LABST TYPE STRING,
HMNGU TYPE STRING,
BUKRS TYPE STRING,
LAND1 TYPE STRING,
ELIKZ TYPE STRING,
LGORT TYPE STRING,
ABFST TYPE STRING,
ABAST TYPE STRING,
BLGTP TYPE STRING,
EXPECTED_SALES TYPE STRING,
OPEN_ORDERS TYPE STRING,
TREND_FACTOR TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CAUFI_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_CAUFI_STR-MANDT sy-vline 
WA_CAUFI_STR-ABELN sy-vline 
WA_CAUFI_STR-ABELP sy-vline 
WA_CAUFI_STR-ABELG sy-vline 
WA_CAUFI_STR-ABELF sy-vline 
WA_CAUFI_STR-FILNR sy-vline 
WA_CAUFI_STR-FIWRK sy-vline 
WA_CAUFI_STR-EKORG sy-vline 
WA_CAUFI_STR-EKGRP sy-vline 
WA_CAUFI_STR-ERDAT sy-vline 
WA_CAUFI_STR-AEDAT sy-vline 
WA_CAUFI_STR-ERNAM sy-vline 
WA_CAUFI_STR-AENAM sy-vline 
WA_CAUFI_STR-LFNRU sy-vline 
WA_CAUFI_STR-PMNGU sy-vline 
WA_CAUFI_STR-IMNGU sy-vline 
WA_CAUFI_STR-MMNGU sy-vline 
WA_CAUFI_STR-WMNGE sy-vline 
WA_CAUFI_STR-AUFME sy-vline 
WA_CAUFI_STR-LIEFW sy-vline 
WA_CAUFI_STR-EBLNU sy-vline 
WA_CAUFI_STR-EBLPU sy-vline 
WA_CAUFI_STR-UBSTN sy-vline 
WA_CAUFI_STR-UBSTP sy-vline 
WA_CAUFI_STR-VBLNU sy-vline 
WA_CAUFI_STR-VBLPU sy-vline 
WA_CAUFI_STR-BEDAT sy-vline 
WA_CAUFI_STR-BEDTP sy-vline 
WA_CAUFI_STR-VKDAT sy-vline 
WA_CAUFI_STR-VKTYP sy-vline 
WA_CAUFI_STR-LEWED sy-vline 
WA_CAUFI_STR-VZENT sy-vline 
WA_CAUFI_STR-VZWRK sy-vline 
WA_CAUFI_STR-VZLFR sy-vline 
WA_CAUFI_STR-AAVIT sy-vline 
WA_CAUFI_STR-PLIFZ sy-vline 
WA_CAUFI_STR-WEBAZ sy-vline 
WA_CAUFI_STR-ABFDT sy-vline 
WA_CAUFI_STR-ABFTP sy-vline 
WA_CAUFI_STR-PSTAB sy-vline 
WA_CAUFI_STR-VKORG sy-vline 
WA_CAUFI_STR-VTWEG sy-vline 
WA_CAUFI_STR-SPART sy-vline 
WA_CAUFI_STR-BSTMG sy-vline 
WA_CAUFI_STR-BSTME sy-vline 
WA_CAUFI_STR-UMLMG sy-vline 
WA_CAUFI_STR-UMLME sy-vline 
WA_CAUFI_STR-LFMNG sy-vline 
WA_CAUFI_STR-VRKME sy-vline 
WA_CAUFI_STR-SPERR sy-vline 
WA_CAUFI_STR-VQUOT sy-vline 
WA_CAUFI_STR-WMERF sy-vline 
WA_CAUFI_STR-BMERF sy-vline 
WA_CAUFI_STR-BEWZA sy-vline 
WA_CAUFI_STR-LABST sy-vline 
WA_CAUFI_STR-HMNGU sy-vline 
WA_CAUFI_STR-BUKRS sy-vline 
WA_CAUFI_STR-LAND1 sy-vline 
WA_CAUFI_STR-ELIKZ sy-vline 
WA_CAUFI_STR-LGORT sy-vline 
WA_CAUFI_STR-ABFST sy-vline 
WA_CAUFI_STR-ABAST sy-vline 
WA_CAUFI_STR-BLGTP sy-vline 
WA_CAUFI_STR-EXPECTED_SALES sy-vline 
WA_CAUFI_STR-OPEN_ORDERS sy-vline 
WA_CAUFI_STR-TREND_FACTOR sy-vline 
WA_CAUFI_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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