ABAP Select data from SAP table CSISU_CSMLDOCI_BR3 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CSISU_CSMLDOCI_BR3 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_CSMLDOCI_BR3. 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_CSMLDOCI_BR3 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_CSMLDOCI_BR3 TYPE STANDARD TABLE OF CSISU_CSMLDOCI_BR3,
      WA_CSISU_CSMLDOCI_BR3 TYPE CSISU_CSMLDOCI_BR3,
      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_CSMLDOCI_BR3> TYPE CSISU_CSMLDOCI_BR3.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CSISU_CSMLDOCI_BR3.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CSISU_CSMLDOCI_BR3
  INTO TABLE IT_CSISU_CSMLDOCI_BR3.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSISU_CSMLDOCI_BR3
*  INTO TABLE @DATA(IT_CSISU_CSMLDOCI_BR32).
*--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_CSMLDOCI_BR3 INDEX 1 INTO DATA(WA_CSISU_CSMLDOCI_BR32).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CSISU_CSMLDOCI_BR3 ASSIGNING <CSISU_CSMLDOCI_BR3>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSISU_CSMLDOCI_BR3>-KEY = 1.
<CSISU_CSMLDOCI_BR3>-PARENT_KEY = 1.
<CSISU_CSMLDOCI_BR3>-ROOT_KEY = 1.
<CSISU_CSMLDOCI_BR3>-SCENARIOID = 1.
<CSISU_CSMLDOCI_BR3>-BILLINGDOCUMENT = 1.

ENDLOOP.

LOOP AT IT_CSISU_CSMLDOCI_BR3 INTO WA_CSISU_CSMLDOCI_BR3.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSISU_CSMLDOCI_BR3-PRINTDOCUMENT, sy-vline,
  WA_CSISU_CSMLDOCI_BR3-SIMULATEDPRINTDOCUMENT, sy-vline,
  WA_CSISU_CSMLDOCI_BR3-SEQUENTIALITEM, sy-vline,
  WA_CSISU_CSMLDOCI_BR3-POSTINGDATE, sy-vline,
  WA_CSISU_CSMLDOCI_BR3-INSTALATION, sy-vline,
  WA_CSISU_CSMLDOCI_BR3-CONTRACT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSISU_CSMLDOCI_BR3 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_CSMLDOCI_BR3 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_CSMLDOCI_BR3 INTO WA_CSISU_CSMLDOCI_BR3.


*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_CSMLDOCI_BR3-SCENARIOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-SCENARIOID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BILLINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCI_BR3-BILLINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-BILLINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRINTDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCI_BR3-PRINTDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-PRINTDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SIMULATEDPRINTDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCI_BR3-SIMULATEDPRINTDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-SIMULATEDPRINTDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INSTALATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCI_BR3-INSTALATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-INSTALATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCI_BR3-CONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-CONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCI_BR3-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-BUSINESSPARTNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field POSTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSISU_CSMLDOCI_BR3-POSTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSISU_CSMLDOCI_BR3-POSTINGDOCUMENT.
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_CSMLDOCI_BR3_STR, 
KEY TYPE STRING,
PARENT_KEY TYPE STRING,
ROOT_KEY TYPE STRING,
SCENARIOID TYPE STRING,
BILLINGDOCUMENT TYPE STRING,
PRINTDOCUMENT TYPE STRING,
SIMULATEDPRINTDOCUMENT TYPE STRING,
SEQUENTIALITEM TYPE STRING,
POSTINGDATE TYPE STRING,
INSTALATION TYPE STRING,
CONTRACT TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BEGINBILLPERIOD TYPE STRING,
ENDBILLPERIOD TYPE STRING,
BILLINGLINEFROM TYPE STRING,
LINEITEMFROM TYPE STRING,
TRANSACTIONKEYFROM TYPE STRING,
ORIGINALNETAMOUNT TYPE STRING,
BILLINGLINETO TYPE STRING,
LINEITEMTO TYPE STRING,
TRANSACTIONKEYTO TYPE STRING,
SIMULATEDNETAMOUNT TYPE STRING,
DIFERENCENETAMOUNT TYPE STRING,
STATUS TYPE STRING,
POSTINGDOCUMENT TYPE STRING,
POSTINGSTATUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSISU_CSMLDOCI_BR3_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_CSMLDOCI_BR3_STR-KEY sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-PARENT_KEY sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-ROOT_KEY sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-SCENARIOID sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-BILLINGDOCUMENT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-PRINTDOCUMENT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-SIMULATEDPRINTDOCUMENT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-SEQUENTIALITEM sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-POSTINGDATE sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-INSTALATION sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-CONTRACT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-BUSINESSPARTNER sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-BEGINBILLPERIOD sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-ENDBILLPERIOD sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-BILLINGLINEFROM sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-LINEITEMFROM sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-TRANSACTIONKEYFROM sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-ORIGINALNETAMOUNT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-BILLINGLINETO sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-LINEITEMTO sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-TRANSACTIONKEYTO sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-SIMULATEDNETAMOUNT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-DIFERENCENETAMOUNT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-STATUS sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-POSTINGDOCUMENT sy-vline 
WA_CSISU_CSMLDOCI_BR3_STR-POSTINGSTATUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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