ABAP Select data from SAP table TN22S into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP TN22S 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 TN22S. 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 TN22S 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_TN22S TYPE STANDARD TABLE OF TN22S,
      WA_TN22S TYPE TN22S,
      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: <TN22S> TYPE TN22S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_TN22S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM TN22S
  INTO TABLE IT_TN22S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TN22S
*  INTO TABLE @DATA(IT_TN22S2).
*--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_TN22S INDEX 1 INTO DATA(WA_TN22S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_TN22S ASSIGNING <TN22S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TN22S>-MANDT = 1.
<TN22S>-EINRI = 1.
<TN22S>-SHBKZ = 1.
<TN22S>-SHBKL = 1.
<TN22S>-MANSP = 1.

ENDLOOP.

LOOP AT IT_TN22S INTO WA_TN22S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TN22S-MSCHL, sy-vline,
  WA_TN22S-MABER, sy-vline,
  WA_TN22S-BLART, sy-vline,
  WA_TN22S-BSLSO, sy-vline,
  WA_TN22S-BSLHA, sy-vline,
  WA_TN22S-WAERS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TN22S 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_TN22S 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_TN22S INTO WA_TN22S.


*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 EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHBKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-SHBKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-SHBKZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SHBKL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-SHBKL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-SHBKL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MABER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-MABER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-MABER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FKDAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-FKDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-FKDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BLDAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-BLDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-BLDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUDAT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-BUDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-BUDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TAXKZ
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TN22S-TAXKZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TN22S-TAXKZ.
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_TN22S_STR, 
MANDT TYPE STRING,
EINRI TYPE STRING,
SHBKZ TYPE STRING,
SHBKL TYPE STRING,
MANSP TYPE STRING,
MSCHL TYPE STRING,
MABER TYPE STRING,
BLART TYPE STRING,
BSLSO TYPE STRING,
BSLHA TYPE STRING,
WAERS TYPE STRING,
FKDAT TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
TXTAK TYPE STRING,
TXTAP TYPE STRING,
TAXKZ TYPE STRING,
ZSCHL TYPE STRING,
ZLSPR TYPE STRING,
MINGN TYPE STRING,
PRZGN TYPE STRING,
NORND TYPE STRING,
KARND TYPE STRING,
OBRND TYPE STRING,
ABRND TYPE STRING,
DVISR TYPE STRING,
STGRD TYPE STRING,
MINGN_IP TYPE STRING,
PRZGN_IP TYPE STRING,
NORND_IP TYPE STRING,
KARND_IP TYPE STRING,
OBRND_IP TYPE STRING,
ABRND_IP TYPE STRING,
DVISR_IP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TN22S_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_TN22S_STR-MANDT sy-vline 
WA_TN22S_STR-EINRI sy-vline 
WA_TN22S_STR-SHBKZ sy-vline 
WA_TN22S_STR-SHBKL sy-vline 
WA_TN22S_STR-MANSP sy-vline 
WA_TN22S_STR-MSCHL sy-vline 
WA_TN22S_STR-MABER sy-vline 
WA_TN22S_STR-BLART sy-vline 
WA_TN22S_STR-BSLSO sy-vline 
WA_TN22S_STR-BSLHA sy-vline 
WA_TN22S_STR-WAERS sy-vline 
WA_TN22S_STR-FKDAT sy-vline 
WA_TN22S_STR-BLDAT sy-vline 
WA_TN22S_STR-BUDAT sy-vline 
WA_TN22S_STR-TXTAK sy-vline 
WA_TN22S_STR-TXTAP sy-vline 
WA_TN22S_STR-TAXKZ sy-vline 
WA_TN22S_STR-ZSCHL sy-vline 
WA_TN22S_STR-ZLSPR sy-vline 
WA_TN22S_STR-MINGN sy-vline 
WA_TN22S_STR-PRZGN sy-vline 
WA_TN22S_STR-NORND sy-vline 
WA_TN22S_STR-KARND sy-vline 
WA_TN22S_STR-OBRND sy-vline 
WA_TN22S_STR-ABRND sy-vline 
WA_TN22S_STR-DVISR sy-vline 
WA_TN22S_STR-STGRD sy-vline 
WA_TN22S_STR-MINGN_IP sy-vline 
WA_TN22S_STR-PRZGN_IP sy-vline 
WA_TN22S_STR-NORND_IP sy-vline 
WA_TN22S_STR-KARND_IP sy-vline 
WA_TN22S_STR-OBRND_IP sy-vline 
WA_TN22S_STR-ABRND_IP sy-vline 
WA_TN22S_STR-DVISR_IP sy-vline      INTO ld_text SEPARATED BY SPACE.

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