ABAP Select data from SAP table U_22658 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_22658 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_22658. 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_22658 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_22658 TYPE STANDARD TABLE OF U_22658,
      WA_U_22658 TYPE U_22658,
      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_22658> TYPE U_22658.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_22658.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_22658
  INTO TABLE IT_U_22658.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_22658
*  INTO TABLE @DATA(IT_U_226582).
*--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_22658 INDEX 1 INTO DATA(WA_U_226582).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_22658 ASSIGNING <U_22658>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_22658>-MANDT = 1.
<U_22658>-BUKRS = 1.
<U_22658>-SEVNR = 1.
<U_22658>-SVWEVENT = 1.
<U_22658>-DVWEVENT = 1.

ENDLOOP.

LOOP AT IT_U_22658 INTO WA_U_22658.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_22658-XVWEVENT, sy-vline,
  WA_U_22658-BUKRS_VW, sy-vline,
  WA_U_22658-SVWNR, sy-vline,
  WA_U_22658-BUKRS_OBJ, sy-vline,
  WA_U_22658-SWENR, sy-vline,
  WA_U_22658-SGRNR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_22658 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_22658 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_22658 INTO WA_U_22658.


*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 SEVNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_22658-SEVNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22658-SEVNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SVWNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_22658-SVWNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22658-SVWNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SWENR, internal->external for field SWENR
CALL FUNCTION 'CONVERSION_EXIT_SWENR_OUTPUT'
  EXPORTING
    input =                      WA_U_22658-SWENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22658-SWENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGRNR, internal->external for field SGRNR
CALL FUNCTION 'CONVERSION_EXIT_SGRNR_OUTPUT'
  EXPORTING
    input =                      WA_U_22658-SGRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22658-SGRNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SGENR, internal->external for field SGENR
CALL FUNCTION 'CONVERSION_EXIT_SGENR_OUTPUT'
  EXPORTING
    input =                      WA_U_22658-SGENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22658-SGENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SMENR, internal->external for field SMENR
CALL FUNCTION 'CONVERSION_EXIT_SMENR_OUTPUT'
  EXPORTING
    input =                      WA_U_22658-SMENR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22658-SMENR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit IMKEY, internal->external for field IMKEY
CALL FUNCTION 'CONVERSION_EXIT_IMKEY_OUTPUT'
  EXPORTING
    input =                      WA_U_22658-IMKEY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_22658-IMKEY.
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_22658_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
SEVNR TYPE STRING,
SVWEVENT TYPE STRING,
DVWEVENT TYPE STRING,
XVWEVENT TYPE STRING,
BUKRS_VW TYPE STRING,
SVWNR TYPE STRING,
BUKRS_OBJ TYPE STRING,
SWENR TYPE STRING,
SGRNR TYPE STRING,
SGENR TYPE STRING,
SMENR TYPE STRING,
J_OBJNR TYPE STRING,
IMKEY TYPE STRING,
BVWEVENT TYPE STRING,
WAERS TYPE STRING,
DVWABR TYPE STRING,
SXBLNR 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,END OF T_EKKO_STR.
DATA: WA_U_22658_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_22658_STR-MANDT sy-vline 
WA_U_22658_STR-BUKRS sy-vline 
WA_U_22658_STR-SEVNR sy-vline 
WA_U_22658_STR-SVWEVENT sy-vline 
WA_U_22658_STR-DVWEVENT sy-vline 
WA_U_22658_STR-XVWEVENT sy-vline 
WA_U_22658_STR-BUKRS_VW sy-vline 
WA_U_22658_STR-SVWNR sy-vline 
WA_U_22658_STR-BUKRS_OBJ sy-vline 
WA_U_22658_STR-SWENR sy-vline 
WA_U_22658_STR-SGRNR sy-vline 
WA_U_22658_STR-SGENR sy-vline 
WA_U_22658_STR-SMENR sy-vline 
WA_U_22658_STR-J_OBJNR sy-vline 
WA_U_22658_STR-IMKEY sy-vline 
WA_U_22658_STR-BVWEVENT sy-vline 
WA_U_22658_STR-WAERS sy-vline 
WA_U_22658_STR-DVWABR sy-vline 
WA_U_22658_STR-SXBLNR sy-vline 
WA_U_22658_STR-RERF sy-vline 
WA_U_22658_STR-DERF sy-vline 
WA_U_22658_STR-TERF sy-vline 
WA_U_22658_STR-REHER sy-vline 
WA_U_22658_STR-RBEAR sy-vline 
WA_U_22658_STR-DBEAR sy-vline 
WA_U_22658_STR-TBEAR sy-vline 
WA_U_22658_STR-RBHER sy-vline      INTO ld_text SEPARATED BY SPACE.

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