ABAP Select data from SAP table ISU_SWITCHDOC_ARCH 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 ISU_SWITCHDOC_ARCH 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 ISU_SWITCHDOC_ARCH. 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 ISU_SWITCHDOC_ARCH 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_ISU_SWITCHDOC_ARCH TYPE STANDARD TABLE OF ISU_SWITCHDOC_ARCH,
      WA_ISU_SWITCHDOC_ARCH TYPE ISU_SWITCHDOC_ARCH,
      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: <ISU_SWITCHDOC_ARCH> TYPE ISU_SWITCHDOC_ARCH.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_SWITCHDOC_ARCH
*  INTO TABLE @DATA(IT_ISU_SWITCHDOC_ARCH2).
*--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_ISU_SWITCHDOC_ARCH INDEX 1 INTO DATA(WA_ISU_SWITCHDOC_ARCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_SWITCHDOC_ARCH>-EIDESWTDOC = 1.
<ISU_SWITCHDOC_ARCH>-MANDT = 1.
<ISU_SWITCHDOC_ARCH>-SWITCHNUM = 1.
<ISU_SWITCHDOC_ARCH>-POD = 1.
<ISU_SWITCHDOC_ARCH>-SWITCHTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_SWITCHDOC_ARCH-OWNER, sy-vline,
  WA_ISU_SWITCHDOC_ARCH-SWTVIEW, sy-vline,
  WA_ISU_SWITCHDOC_ARCH-MOVEINDATE, sy-vline,
  WA_ISU_SWITCHDOC_ARCH-MOVEOUTDATE, sy-vline,
  WA_ISU_SWITCHDOC_ARCH-REALMOVEINDATE, sy-vline,
  WA_ISU_SWITCHDOC_ARCH-REALMOVEOUTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_SWITCHDOC_ARCH 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_ISU_SWITCHDOC_ARCH 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_ISU_SWITCHDOC_ARCH INTO WA_ISU_SWITCHDOC_ARCH.


*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 PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_SWITCHDOC_ARCH-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_SWITCHDOC_ARCH-PARTNER.
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_ISU_SWITCHDOC_ARCH_STR, 
EIDESWTDOC TYPE STRING,
MANDT TYPE STRING,
SWITCHNUM TYPE STRING,
POD TYPE STRING,
SWITCHTYPE TYPE STRING,
OWNER TYPE STRING,
SWTVIEW TYPE STRING,
MOVEINDATE TYPE STRING,
MOVEOUTDATE TYPE STRING,
REALMOVEINDATE TYPE STRING,
REALMOVEOUTDATE TYPE STRING,
PARTNER TYPE STRING,
SERVICE_PROV_OLD TYPE STRING,
SERVICE_PROV_NEW TYPE STRING,
DISTRIBUTOR TYPE STRING,
STARTSCENARIO TYPE STRING,
TARGETSCENARIO TYPE STRING,
ENROLLDOC TYPE STRING,
DROPDOC TYPE STRING,
STATUS TYPE STRING,
STATUSTIME TYPE STRING,
TIME_ZONE TYPE STRING,
TIMESTAMP TYPE STRING,
SOURCE TYPE STRING,
EXT_REFERENCE TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
SPARTYP TYPE STRING,
QUOTE_ID TYPE STRING,
QUOTE_ITEM_ID TYPE STRING,
TEIDESWTDOCSTEP TYPE STRING,
TEIDESWTMSGDATA TYPE STRING,
TEIDESWTMSGDATACO TYPE STRING,
TEIDESWTDOCATTR TYPE STRING,
TEIDESWTDOCREF TYPE STRING,
ADDDATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_SWITCHDOC_ARCH_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_ISU_SWITCHDOC_ARCH_STR-EIDESWTDOC sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-MANDT sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-SWITCHNUM sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-POD sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-SWITCHTYPE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-OWNER sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-SWTVIEW sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-MOVEINDATE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-MOVEOUTDATE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-REALMOVEINDATE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-REALMOVEOUTDATE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-PARTNER sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-SERVICE_PROV_OLD sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-SERVICE_PROV_NEW sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-DISTRIBUTOR sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-STARTSCENARIO sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TARGETSCENARIO sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-ENROLLDOC sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-DROPDOC sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-STATUS sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-STATUSTIME sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TIME_ZONE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TIMESTAMP sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-SOURCE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-EXT_REFERENCE sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-ERDAT sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-ERNAM sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-AEDAT sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-AENAM sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-BEGRU sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-LOEVM sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-SPARTYP sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-QUOTE_ID sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-QUOTE_ITEM_ID sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TEIDESWTDOCSTEP sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TEIDESWTMSGDATA sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TEIDESWTMSGDATACO sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TEIDESWTDOCATTR sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-TEIDESWTDOCREF sy-vline 
WA_ISU_SWITCHDOC_ARCH_STR-ADDDATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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