ABAP Select data from SAP table CSISU_CSMLDOCT_BR6 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CSISU_CSMLDOCT_BR6 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 CSISU_CSMLDOCT_BR6. 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 CSISU_CSMLDOCT_BR6 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_CSISU_CSMLDOCT_BR6 TYPE STANDARD TABLE OF CSISU_CSMLDOCT_BR6,
      WA_CSISU_CSMLDOCT_BR6 TYPE CSISU_CSMLDOCT_BR6,
      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: <CSISU_CSMLDOCT_BR6> TYPE CSISU_CSMLDOCT_BR6.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CSISU_CSMLDOCT_BR6.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CSISU_CSMLDOCT_BR6
  INTO TABLE IT_CSISU_CSMLDOCT_BR6.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSISU_CSMLDOCT_BR6
*  INTO TABLE @DATA(IT_CSISU_CSMLDOCT_BR62).
*--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_CSISU_CSMLDOCT_BR6 INDEX 1 INTO DATA(WA_CSISU_CSMLDOCT_BR62).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CSISU_CSMLDOCT_BR6 ASSIGNING <CSISU_CSMLDOCT_BR6>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSISU_CSMLDOCT_BR6>-KEY = 1.
<CSISU_CSMLDOCT_BR6>-PARENT_KEY = 1.
<CSISU_CSMLDOCT_BR6>-ROOT_KEY = 1.
<CSISU_CSMLDOCT_BR6>-SCENARIOID = 1.
<CSISU_CSMLDOCT_BR6>-ISU_BR_BILLINGORIGLPRINTDOC = 1.

ENDLOOP.

LOOP AT IT_CSISU_CSMLDOCT_BR6 INTO WA_CSISU_CSMLDOCT_BR6.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSISU_CSMLDOCT_BR6-ISU_BR_BILLINGSIMULATEDPRNTDOC, sy-vline,
  WA_CSISU_CSMLDOCT_BR6-UTILSBILLGDOCCREATIONDATE, sy-vline,
  WA_CSISU_CSMLDOCT_BR6-UTILITIESINSTALLATION, sy-vline,
  WA_CSISU_CSMLDOCT_BR6-UTILITIESCONTRACT, sy-vline,
  WA_CSISU_CSMLDOCT_BR6-UTILSBILLGDOCLINEITEMTYPE, sy-vline,
  WA_CSISU_CSMLDOCT_BR6-CATRANSACTIONKEYACCOUNTDETN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSISU_CSMLDOCT_BR6 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_CSISU_CSMLDOCT_BR6 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_CSISU_CSMLDOCT_BR6 INTO WA_CSISU_CSMLDOCT_BR6.


*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 SCENARIOID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCT_BR6-SCENARIOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCT_BR6-SCENARIOID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ISU_BR_BILLINGORIGLPRINTDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCT_BR6-ISU_BR_BILLINGORIGLPRINTDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCT_BR6-ISU_BR_BILLINGORIGLPRINTDOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ISU_BR_BILLINGSIMULATEDPRNTDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCT_BR6-ISU_BR_BILLINGSIMULATEDPRNTDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCT_BR6-ISU_BR_BILLINGSIMULATEDPRNTDOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UTILITIESINSTALLATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCT_BR6-UTILITIESINSTALLATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCT_BR6-UTILITIESINSTALLATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UTILITIESCONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCT_BR6-UTILITIESCONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCT_BR6-UTILITIESCONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCT_BR6-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCT_BR6-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILLINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCT_BR6-BILLINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCT_BR6-BILLINGDOCUMENT.
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_CSISU_CSMLDOCT_BR6_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
SCENARIOID TYPE STRING,
ISU_BR_BILLINGORIGLPRINTDOC TYPE STRING,
ISU_BR_BILLINGSIMULATEDPRNTDOC TYPE STRING,
UTILSBILLGDOCCREATIONDATE TYPE STRING,
UTILITIESINSTALLATION TYPE STRING,
UTILITIESCONTRACT TYPE STRING,
UTILSBILLGDOCLINEITEMTYPE TYPE STRING,
CATRANSACTIONKEYACCOUNTDETN TYPE STRING,
ISU_BR_PRIORORDERING TYPE STRING,
MAINOPERATIONDOCUMENTITEM TYPE STRING,
SUBOPERATIONDOCUMENTITEM TYPE STRING,
BUSINESSPARTNER TYPE STRING,
ISU_BR_BILLGPERIODSTARTDATE TYPE STRING,
ISU_BR_BILLINGPERIODENDDATE TYPE STRING,
CAPOSTINGDOCUMENT TYPE STRING,
BILLINGDOCUMENT TYPE STRING,
ISU_BR_CONTRACTACCTPOSTGSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSISU_CSMLDOCT_BR6_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_CSISU_CSMLDOCT_BR6_STR-KEY sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-PARENT_KEY sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-ROOT_KEY sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-SCENARIOID sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-ISU_BR_BILLINGORIGLPRINTDOC sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-ISU_BR_BILLINGSIMULATEDPRNTDOC sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-UTILSBILLGDOCCREATIONDATE sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-UTILITIESINSTALLATION sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-UTILITIESCONTRACT sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-UTILSBILLGDOCLINEITEMTYPE sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-CATRANSACTIONKEYACCOUNTDETN sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-ISU_BR_PRIORORDERING sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-MAINOPERATIONDOCUMENTITEM sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-SUBOPERATIONDOCUMENTITEM sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-BUSINESSPARTNER sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-ISU_BR_BILLGPERIODSTARTDATE sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-ISU_BR_BILLINGPERIODENDDATE sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-CAPOSTINGDOCUMENT sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-BILLINGDOCUMENT sy-vline 
WA_CSISU_CSMLDOCT_BR6_STR-ISU_BR_CONTRACTACCTPOSTGSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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