ABAP Select data from SAP table /SYCLO/WM_LTBP_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SYCLO/WM_LTBP_STR 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 /SYCLO/WM_LTBP_STR. 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 /SYCLO/WM_LTBP_STR 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_/SYCLO/WM_LTBP_STR TYPE STANDARD TABLE OF /SYCLO/WM_LTBP_STR,
      WA_/SYCLO/WM_LTBP_STR TYPE /SYCLO/WM_LTBP_STR,
      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: </SYCLO/WM_LTBP_STR> TYPE /SYCLO/WM_LTBP_STR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SYCLO/WM_LTBP_STR
  INTO TABLE IT_/SYCLO/WM_LTBP_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SYCLO/WM_LTBP_STR
*  INTO TABLE @DATA(IT_/SYCLO/WM_LTBP_STR2).
*--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_/SYCLO/WM_LTBP_STR INDEX 1 INTO DATA(WA_/SYCLO/WM_LTBP_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SYCLO/WM_LTBP_STR ASSIGNING </SYCLO/WM_LTBP_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SYCLO/WM_LTBP_STR>-MANDT = 1.
</SYCLO/WM_LTBP_STR>-LGNUM = 1.
</SYCLO/WM_LTBP_STR>-TBNUM = 1.
</SYCLO/WM_LTBP_STR>-TBPOS = 1.
</SYCLO/WM_LTBP_STR>-ELIKZ = 1.

ENDLOOP.

LOOP AT IT_/SYCLO/WM_LTBP_STR INTO WA_/SYCLO/WM_LTBP_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SYCLO/WM_LTBP_STR-MATNR, sy-vline,
  WA_/SYCLO/WM_LTBP_STR-WERKS, sy-vline,
  WA_/SYCLO/WM_LTBP_STR-BESTQ, sy-vline,
  WA_/SYCLO/WM_LTBP_STR-CHARG, sy-vline,
  WA_/SYCLO/WM_LTBP_STR-SOBKZ, sy-vline,
  WA_/SYCLO/WM_LTBP_STR-SONUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SYCLO/WM_LTBP_STR 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_/SYCLO/WM_LTBP_STR 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_/SYCLO/WM_LTBP_STR INTO WA_/SYCLO/WM_LTBP_STR.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/SYCLO/WM_LTBP_STR-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SYCLO/WM_LTBP_STR-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field QPLOA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SYCLO/WM_LTBP_STR-QPLOA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SYCLO/WM_LTBP_STR-QPLOA.
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_/SYCLO/WM_LTBP_STR_STR, 
MANDT TYPE STRING,
LGNUM TYPE STRING,
TBNUM TYPE STRING,
TBPOS TYPE STRING,
ELIKZ TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
BESTQ TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
SONUM TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
MENGA TYPE STRING,
ALTME TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
TANUM TYPE STRING,
TAMEN TYPE STRING,
TAMEA TYPE STRING,
AOFTA TYPE STRING,
AGSTA TYPE STRING,
TDATU TYPE STRING,
TZEIT TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
MBPOS TYPE STRING,
WDATU TYPE STRING,
ZEUGN TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
QPLOS TYPE STRING,
RSPOS TYPE STRING,
VFDAT TYPE STRING,
ANZL1 TYPE STRING,
ANZL2 TYPE STRING,
LMEN1 TYPE STRING,
LMEN2 TYPE STRING,
LETY1 TYPE STRING,
LETY2 TYPE STRING,
QPLOA TYPE STRING,
RSART TYPE STRING,
KZECH TYPE STRING,
LGORT TYPE STRING,
L2SKR TYPE STRING,
KZFME TYPE STRING,
SGT_SCAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SYCLO/WM_LTBP_STR_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_/SYCLO/WM_LTBP_STR_STR-MANDT sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-LGNUM sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-TBNUM sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-TBPOS sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-ELIKZ sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-MATNR sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-WERKS sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-BESTQ sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-CHARG sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-SOBKZ sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-SONUM sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-MENGE sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-MEINS sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-MENGA sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-ALTME sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-UMREZ sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-UMREN sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-TANUM sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-TAMEN sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-TAMEA sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-AOFTA sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-AGSTA sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-TDATU sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-TZEIT sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-WEMPF sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-ABLAD sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-MBPOS sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-WDATU sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-ZEUGN sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-BRGEW sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-GEWEI sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-QPLOS sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-RSPOS sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-VFDAT sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-ANZL1 sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-ANZL2 sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-LMEN1 sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-LMEN2 sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-LETY1 sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-LETY2 sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-QPLOA sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-RSART sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-KZECH sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-LGORT sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-L2SKR sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-KZFME sy-vline 
WA_/SYCLO/WM_LTBP_STR_STR-SGT_SCAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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