ABAP Select data from SAP table U_22656 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_22656 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 U_22656. 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 U_22656 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_U_22656 TYPE STANDARD TABLE OF U_22656,
      WA_U_22656 TYPE U_22656,
      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: <U_22656> TYPE U_22656.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_22656.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_22656
  INTO TABLE IT_U_22656.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_22656
*  INTO TABLE @DATA(IT_U_226562).
*--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_U_22656 INDEX 1 INTO DATA(WA_U_226562).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_22656 ASSIGNING <U_22656>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_22656>-MANDT = 1.
<U_22656>-BUKRS = 1.
<U_22656>-SVWNR = 1.
<U_22656>-IMKEY = 1.
<U_22656>-INTRENO = 1.

ENDLOOP.

LOOP AT IT_U_22656 INTO WA_U_22656.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_22656-J_OBJNR, sy-vline,
  WA_U_22656-DVWBEG, sy-vline,
  WA_U_22656-DVWEND, sy-vline,
  WA_U_22656-LAUFZ, sy-vline,
  WA_U_22656-LZEINS, sy-vline,
  WA_U_22656-VERL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_22656 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_U_22656 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_U_22656 INTO WA_U_22656.


*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 SVWNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_22656-SVWNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22656-SVWNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_U_22656-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22656-IMKEY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_22656-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22656-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_22656-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22656-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_22656-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22656-LIFNR.
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_U_22656_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SVWNR TYPE STRING,
IMKEY TYPE STRING,
INTRENO TYPE STRING,
J_OBJNR TYPE STRING,
DVWBEG TYPE STRING,
DVWEND TYPE STRING,
LAUFZ TYPE STRING,
LZEINS TYPE STRING,
VERL TYPE STRING,
VZEINS TYPE STRING,
AKUEFR TYPE STRING,
KZEINS TYPE STRING,
KUEFR TYPE STRING,
DKUEAM TYPE STRING,
DKUEZUM TYPE STRING,
JLOESCH TYPE STRING,
XVWTEXT TYPE STRING,
WAERS TYPE STRING,
DVWSOLL TYPE STRING,
DVWABR TYPE STRING,
BUKRSPRT TYPE STRING,
GSBERPRT TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
RERF TYPE STRING,
DERF TYPE STRING,
TERF TYPE STRING,
REHER TYPE STRING,
RBEAR TYPE STRING,
DBEAR TYPE STRING,
TBEAR TYPE STRING,
RBHER TYPE STRING,
BUKRS_OBJ TYPE STRING,
KUNNR TYPE STRING,
ZLSCH_DEB TYPE STRING,
ZAHLS_DEB TYPE STRING,
LIFNR TYPE STRING,
ZLSCH_KRED TYPE STRING,
ZAHLS_KRED TYPE STRING,
NO_OBJEKT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_22656_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_U_22656_STR-MANDT sy-vline 
WA_U_22656_STR-BUKRS sy-vline 
WA_U_22656_STR-SVWNR sy-vline 
WA_U_22656_STR-IMKEY sy-vline 
WA_U_22656_STR-INTRENO sy-vline 
WA_U_22656_STR-J_OBJNR sy-vline 
WA_U_22656_STR-DVWBEG sy-vline 
WA_U_22656_STR-DVWEND sy-vline 
WA_U_22656_STR-LAUFZ sy-vline 
WA_U_22656_STR-LZEINS sy-vline 
WA_U_22656_STR-VERL sy-vline 
WA_U_22656_STR-VZEINS sy-vline 
WA_U_22656_STR-AKUEFR sy-vline 
WA_U_22656_STR-KZEINS sy-vline 
WA_U_22656_STR-KUEFR sy-vline 
WA_U_22656_STR-DKUEAM sy-vline 
WA_U_22656_STR-DKUEZUM sy-vline 
WA_U_22656_STR-JLOESCH sy-vline 
WA_U_22656_STR-XVWTEXT sy-vline 
WA_U_22656_STR-WAERS sy-vline 
WA_U_22656_STR-DVWSOLL sy-vline 
WA_U_22656_STR-DVWABR sy-vline 
WA_U_22656_STR-BUKRSPRT sy-vline 
WA_U_22656_STR-GSBERPRT sy-vline 
WA_U_22656_STR-GSBER sy-vline 
WA_U_22656_STR-PRCTR sy-vline 
WA_U_22656_STR-RERF sy-vline 
WA_U_22656_STR-DERF sy-vline 
WA_U_22656_STR-TERF sy-vline 
WA_U_22656_STR-REHER sy-vline 
WA_U_22656_STR-RBEAR sy-vline 
WA_U_22656_STR-DBEAR sy-vline 
WA_U_22656_STR-TBEAR sy-vline 
WA_U_22656_STR-RBHER sy-vline 
WA_U_22656_STR-BUKRS_OBJ sy-vline 
WA_U_22656_STR-KUNNR sy-vline 
WA_U_22656_STR-ZLSCH_DEB sy-vline 
WA_U_22656_STR-ZAHLS_DEB sy-vline 
WA_U_22656_STR-LIFNR sy-vline 
WA_U_22656_STR-ZLSCH_KRED sy-vline 
WA_U_22656_STR-ZAHLS_KRED sy-vline 
WA_U_22656_STR-NO_OBJEKT sy-vline      INTO ld_text SEPARATED BY SPACE.

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