ABAP Select data from SAP table ISU01_DEVLOC_SUB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISU01_DEVLOC_SUB 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 ISU01_DEVLOC_SUB. 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 ISU01_DEVLOC_SUB 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_ISU01_DEVLOC_SUB TYPE STANDARD TABLE OF ISU01_DEVLOC_SUB,
      WA_ISU01_DEVLOC_SUB TYPE ISU01_DEVLOC_SUB,
      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: <ISU01_DEVLOC_SUB> TYPE ISU01_DEVLOC_SUB.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISU01_DEVLOC_SUB.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISU01_DEVLOC_SUB
  INTO TABLE IT_ISU01_DEVLOC_SUB.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU01_DEVLOC_SUB
*  INTO TABLE @DATA(IT_ISU01_DEVLOC_SUB2).
*--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_ISU01_DEVLOC_SUB INDEX 1 INTO DATA(WA_ISU01_DEVLOC_SUB2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISU01_DEVLOC_SUB ASSIGNING <ISU01_DEVLOC_SUB>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU01_DEVLOC_SUB>-HANDLE = 1.
<ISU01_DEVLOC_SUB>-CONTR = 1.
<ISU01_DEVLOC_SUB>-WMODE = 1.
<ISU01_DEVLOC_SUB>-OPEN_WMODE = 1.
<ISU01_DEVLOC_SUB>-UPD_ONLINE = 1.

ENDLOOP.

LOOP AT IT_ISU01_DEVLOC_SUB INTO WA_ISU01_DEVLOC_SUB.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU01_DEVLOC_SUB-NO_DIALOG, sy-vline,
  WA_ISU01_DEVLOC_SUB-NUM_RANGE, sy-vline,
  WA_ISU01_DEVLOC_SUB-NO_CHANGE, sy-vline,
  WA_ISU01_DEVLOC_SUB-NO_OTHER, sy-vline,
  WA_ISU01_DEVLOC_SUB-NO_EVENT, sy-vline,
  WA_ISU01_DEVLOC_SUB-NO_STATISTIC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU01_DEVLOC_SUB 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_ISU01_DEVLOC_SUB 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_ISU01_DEVLOC_SUB INTO WA_ISU01_DEVLOC_SUB.


*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 TPLNR, internal->external for field DEVLOC
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ISU01_DEVLOC_SUB-DEVLOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU01_DEVLOC_SUB-DEVLOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ISU01_DEVLOC_SUB-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU01_DEVLOC_SUB-SPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field HAUS
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_ISU01_DEVLOC_SUB-HAUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU01_DEVLOC_SUB-HAUS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VSTELLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU01_DEVLOC_SUB-VSTELLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU01_DEVLOC_SUB-VSTELLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU01_DEVLOC_SUB-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU01_DEVLOC_SUB-ADRNR.
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_ISU01_DEVLOC_SUB_STR, 
HANDLE TYPE STRING,
CONTR TYPE STRING,
WMODE TYPE STRING,
OPEN_WMODE TYPE STRING,
UPD_ONLINE TYPE STRING,
NO_DIALOG TYPE STRING,
NUM_RANGE TYPE STRING,
NO_CHANGE TYPE STRING,
NO_OTHER TYPE STRING,
NO_EVENT TYPE STRING,
NO_STATISTIC TYPE STRING,
NO_CHANGE_DOC TYPE STRING,
CALLED_BY_IDOC TYPE STRING,
PROPRICE TYPE STRING,
INPERR TYPE STRING,
ENQ_DONE TYPE STRING,
CURFIELD TYPE STRING,
CURLINE TYPE STRING,
CURDYNNR TYPE STRING,
SETCURFIELD TYPE STRING,
SETCURLINE TYPE STRING,
SETCURDYNNR TYPE STRING,
TEXT_CHANGED TYPE STRING,
EXTINTKZ TYPE STRING,
EXIT_TYPE TYPE STRING,
FULLSCREEN TYPE STRING,
SAVE_OKCODE TYPE STRING,
TEILOBJ TYPE STRING,
S_FUBA TYPE STRING,
INPUT_FIELD_OFF TYPE STRING,
NOFULLSCREEN TYPE STRING,
DB_UPDATE TYPE STRING,
CHANGEFLAG TYPE STRING,
WA_ADR_DONE TYPE STRING,
MSG TYPE STRING,
MSGID TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
EGPL TYPE STRING,
MANDT TYPE STRING,
DEVLOC TYPE STRING,
SPRAS TYPE STRING,
PLTXT TYPE STRING,
KZLTX TYPE STRING,
TPLKZ TYPE STRING,
FLTYP TYPE STRING,
HAUS TYPE STRING,
DATAB TYPE STRING,
BEGRU TYPE STRING,
EINZLI TYPE STRING,
IWERK TYPE STRING,
IWERKI TYPE STRING,
POSNR TYPE STRING,
ISTYP TYPE STRING,
VSTELLE TYPE STRING,
SWERK TYPE STRING,
SWERKI TYPE STRING,
BUKRS TYPE STRING,
BUKRSI TYPE STRING,
ADRNR TYPE STRING,
ADRNRI TYPE STRING,
STORT TYPE STRING,
STORTI TYPE STRING,
STORTZUS TYPE STRING,
ILOAN TYPE STRING,
OBJNR TYPE STRING,
IEQUI TYPE STRING,
IEQUII TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
STRNO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU01_DEVLOC_SUB_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_ISU01_DEVLOC_SUB_STR-HANDLE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-CONTR sy-vline 
WA_ISU01_DEVLOC_SUB_STR-WMODE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-OPEN_WMODE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-UPD_ONLINE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NO_DIALOG sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NUM_RANGE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NO_CHANGE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NO_OTHER sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NO_EVENT sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NO_STATISTIC sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NO_CHANGE_DOC sy-vline 
WA_ISU01_DEVLOC_SUB_STR-CALLED_BY_IDOC sy-vline 
WA_ISU01_DEVLOC_SUB_STR-PROPRICE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-INPERR sy-vline 
WA_ISU01_DEVLOC_SUB_STR-ENQ_DONE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-CURFIELD sy-vline 
WA_ISU01_DEVLOC_SUB_STR-CURLINE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-CURDYNNR sy-vline 
WA_ISU01_DEVLOC_SUB_STR-SETCURFIELD sy-vline 
WA_ISU01_DEVLOC_SUB_STR-SETCURLINE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-SETCURDYNNR sy-vline 
WA_ISU01_DEVLOC_SUB_STR-TEXT_CHANGED sy-vline 
WA_ISU01_DEVLOC_SUB_STR-EXTINTKZ sy-vline 
WA_ISU01_DEVLOC_SUB_STR-EXIT_TYPE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-FULLSCREEN sy-vline 
WA_ISU01_DEVLOC_SUB_STR-SAVE_OKCODE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-TEILOBJ sy-vline 
WA_ISU01_DEVLOC_SUB_STR-S_FUBA sy-vline 
WA_ISU01_DEVLOC_SUB_STR-INPUT_FIELD_OFF sy-vline 
WA_ISU01_DEVLOC_SUB_STR-NOFULLSCREEN sy-vline 
WA_ISU01_DEVLOC_SUB_STR-DB_UPDATE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-CHANGEFLAG sy-vline 
WA_ISU01_DEVLOC_SUB_STR-WA_ADR_DONE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSG sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSGID sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSGTY sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSGNO sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSGV1 sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSGV2 sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSGV3 sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MSGV4 sy-vline 
WA_ISU01_DEVLOC_SUB_STR-EGPL sy-vline 
WA_ISU01_DEVLOC_SUB_STR-MANDT sy-vline 
WA_ISU01_DEVLOC_SUB_STR-DEVLOC sy-vline 
WA_ISU01_DEVLOC_SUB_STR-SPRAS sy-vline 
WA_ISU01_DEVLOC_SUB_STR-PLTXT sy-vline 
WA_ISU01_DEVLOC_SUB_STR-KZLTX sy-vline 
WA_ISU01_DEVLOC_SUB_STR-TPLKZ sy-vline 
WA_ISU01_DEVLOC_SUB_STR-FLTYP sy-vline 
WA_ISU01_DEVLOC_SUB_STR-HAUS sy-vline 
WA_ISU01_DEVLOC_SUB_STR-DATAB sy-vline 
WA_ISU01_DEVLOC_SUB_STR-BEGRU sy-vline 
WA_ISU01_DEVLOC_SUB_STR-EINZLI sy-vline 
WA_ISU01_DEVLOC_SUB_STR-IWERK sy-vline 
WA_ISU01_DEVLOC_SUB_STR-IWERKI sy-vline 
WA_ISU01_DEVLOC_SUB_STR-POSNR sy-vline 
WA_ISU01_DEVLOC_SUB_STR-ISTYP sy-vline 
WA_ISU01_DEVLOC_SUB_STR-VSTELLE sy-vline 
WA_ISU01_DEVLOC_SUB_STR-SWERK sy-vline 
WA_ISU01_DEVLOC_SUB_STR-SWERKI sy-vline 
WA_ISU01_DEVLOC_SUB_STR-BUKRS sy-vline 
WA_ISU01_DEVLOC_SUB_STR-BUKRSI sy-vline 
WA_ISU01_DEVLOC_SUB_STR-ADRNR sy-vline 
WA_ISU01_DEVLOC_SUB_STR-ADRNRI sy-vline 
WA_ISU01_DEVLOC_SUB_STR-STORT sy-vline 
WA_ISU01_DEVLOC_SUB_STR-STORTI sy-vline 
WA_ISU01_DEVLOC_SUB_STR-STORTZUS sy-vline 
WA_ISU01_DEVLOC_SUB_STR-ILOAN sy-vline 
WA_ISU01_DEVLOC_SUB_STR-OBJNR sy-vline 
WA_ISU01_DEVLOC_SUB_STR-IEQUI sy-vline 
WA_ISU01_DEVLOC_SUB_STR-IEQUII sy-vline 
WA_ISU01_DEVLOC_SUB_STR-ERDAT sy-vline 
WA_ISU01_DEVLOC_SUB_STR-ERNAM sy-vline 
WA_ISU01_DEVLOC_SUB_STR-AEDAT sy-vline 
WA_ISU01_DEVLOC_SUB_STR-AENAM sy-vline 
WA_ISU01_DEVLOC_SUB_STR-STRNO sy-vline      INTO ld_text SEPARATED BY SPACE.

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