ABAP Select data from SAP table BIW_ISU_CL_CS01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BIW_ISU_CL_CS01 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 BIW_ISU_CL_CS01. 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 BIW_ISU_CL_CS01 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_BIW_ISU_CL_CS01 TYPE STANDARD TABLE OF BIW_ISU_CL_CS01,
      WA_BIW_ISU_CL_CS01 TYPE BIW_ISU_CL_CS01,
      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: <BIW_ISU_CL_CS01> TYPE BIW_ISU_CL_CS01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_BIW_ISU_CL_CS01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BIW_ISU_CL_CS01
  INTO TABLE IT_BIW_ISU_CL_CS01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIW_ISU_CL_CS01
*  INTO TABLE @DATA(IT_BIW_ISU_CL_CS012).
*--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_BIW_ISU_CL_CS01 INDEX 1 INTO DATA(WA_BIW_ISU_CL_CS012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BIW_ISU_CL_CS01 ASSIGNING <BIW_ISU_CL_CS01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIW_ISU_CL_CS01>-BPGUID_BW = 1.
<BIW_ISU_CL_CS01>-SEQNR = 1.
<BIW_ISU_CL_CS01>-BPAREA = 1.
<BIW_ISU_CL_CS01>-BPCODE = 1.
<BIW_ISU_CL_CS01>-SYTCODE = 1.

ENDLOOP.

LOOP AT IT_BIW_ISU_CL_CS01 INTO WA_BIW_ISU_CL_CS01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIW_ISU_CL_CS01-UNAME, sy-vline,
  WA_BIW_ISU_CL_CS01-BATCH, sy-vline,
  WA_BIW_ISU_CL_CS01-TIMEDIFF, sy-vline,
  WA_BIW_ISU_CL_CS01-TIMEDIFF_UNIT, sy-vline,
  WA_BIW_ISU_CL_CS01-SYST_BEG, sy-vline,
  WA_BIW_ISU_CL_CS01-SYST_END, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIW_ISU_CL_CS01 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_BIW_ISU_CL_CS01 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_BIW_ISU_CL_CS01 INTO WA_BIW_ISU_CL_CS01.


*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 BPAREA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-BPAREA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-BPAREA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BPCODE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-BPCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-BPCODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field TIMEDIFF_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-TIMEDIFF_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-TIMEDIFF_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EINZBELEG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-EINZBELEG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-EINZBELEG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUSZBELEG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-AUSZBELEG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-AUSZBELEG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNDE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-KUNDE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-KUNDE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERTRAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-VERTRAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-VERTRAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLAGE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-ANLAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-ANLAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VSTELLE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-VSTELLE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-VSTELLE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field HAUS
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_BIW_ISU_CL_CS01-HAUS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BIW_ISU_CL_CS01-HAUS.
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_BIW_ISU_CL_CS01_STR, 
BPGUID_BW TYPE STRING,
SEQNR TYPE STRING,
BPAREA TYPE STRING,
BPCODE TYPE STRING,
SYTCODE TYPE STRING,
UNAME TYPE STRING,
BATCH TYPE STRING,
TIMEDIFF TYPE STRING,
TIMEDIFF_UNIT TYPE STRING,
SYST_BEG TYPE STRING,
SYST_END TYPE STRING,
TZONE TYPE STRING,
MSG_POS TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTY TYPE STRING,
MAIN_PROC TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
USER_CANC TYPE STRING,
NO_TIME_MEAS TYPE STRING,
EINZBELEG TYPE STRING,
AUSZBELEG TYPE STRING,
VKONT TYPE STRING,
KUNDE TYPE STRING,
VERTRAG TYPE STRING,
ANLAGE TYPE STRING,
VSTELLE TYPE STRING,
HAUS TYPE STRING,
EINZDAT TYPE STRING,
AUSZDAT TYPE STRING,
ANZPO TYPE STRING,
ANZHEAD TYPE STRING,
QROWCOUN TYPE STRING,
CASE_GUID TYPE STRING,
CTYPE TYPE STRING,
CCAT TYPE STRING,
STATUS TYPE STRING,
DUE_DATE TYPE STRING,
BPGUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIW_ISU_CL_CS01_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_BIW_ISU_CL_CS01_STR-BPGUID_BW sy-vline 
WA_BIW_ISU_CL_CS01_STR-SEQNR sy-vline 
WA_BIW_ISU_CL_CS01_STR-BPAREA sy-vline 
WA_BIW_ISU_CL_CS01_STR-BPCODE sy-vline 
WA_BIW_ISU_CL_CS01_STR-SYTCODE sy-vline 
WA_BIW_ISU_CL_CS01_STR-UNAME sy-vline 
WA_BIW_ISU_CL_CS01_STR-BATCH sy-vline 
WA_BIW_ISU_CL_CS01_STR-TIMEDIFF sy-vline 
WA_BIW_ISU_CL_CS01_STR-TIMEDIFF_UNIT sy-vline 
WA_BIW_ISU_CL_CS01_STR-SYST_BEG sy-vline 
WA_BIW_ISU_CL_CS01_STR-SYST_END sy-vline 
WA_BIW_ISU_CL_CS01_STR-TZONE sy-vline 
WA_BIW_ISU_CL_CS01_STR-MSG_POS sy-vline 
WA_BIW_ISU_CL_CS01_STR-MSGID sy-vline 
WA_BIW_ISU_CL_CS01_STR-MSGNO sy-vline 
WA_BIW_ISU_CL_CS01_STR-MSGTY sy-vline 
WA_BIW_ISU_CL_CS01_STR-MAIN_PROC sy-vline 
WA_BIW_ISU_CL_CS01_STR-ERNAM sy-vline 
WA_BIW_ISU_CL_CS01_STR-ERDAT sy-vline 
WA_BIW_ISU_CL_CS01_STR-USER_CANC sy-vline 
WA_BIW_ISU_CL_CS01_STR-NO_TIME_MEAS sy-vline 
WA_BIW_ISU_CL_CS01_STR-EINZBELEG sy-vline 
WA_BIW_ISU_CL_CS01_STR-AUSZBELEG sy-vline 
WA_BIW_ISU_CL_CS01_STR-VKONT sy-vline 
WA_BIW_ISU_CL_CS01_STR-KUNDE sy-vline 
WA_BIW_ISU_CL_CS01_STR-VERTRAG sy-vline 
WA_BIW_ISU_CL_CS01_STR-ANLAGE sy-vline 
WA_BIW_ISU_CL_CS01_STR-VSTELLE sy-vline 
WA_BIW_ISU_CL_CS01_STR-HAUS sy-vline 
WA_BIW_ISU_CL_CS01_STR-EINZDAT sy-vline 
WA_BIW_ISU_CL_CS01_STR-AUSZDAT sy-vline 
WA_BIW_ISU_CL_CS01_STR-ANZPO sy-vline 
WA_BIW_ISU_CL_CS01_STR-ANZHEAD sy-vline 
WA_BIW_ISU_CL_CS01_STR-QROWCOUN sy-vline 
WA_BIW_ISU_CL_CS01_STR-CASE_GUID sy-vline 
WA_BIW_ISU_CL_CS01_STR-CTYPE sy-vline 
WA_BIW_ISU_CL_CS01_STR-CCAT sy-vline 
WA_BIW_ISU_CL_CS01_STR-STATUS sy-vline 
WA_BIW_ISU_CL_CS01_STR-DUE_DATE sy-vline 
WA_BIW_ISU_CL_CS01_STR-BPGUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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