ABAP Select data from SAP table /ACCGO/STL_S_HIST_BL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/STL_S_HIST_BL 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 /ACCGO/STL_S_HIST_BL. 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 /ACCGO/STL_S_HIST_BL 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_/ACCGO/STL_S_HIST_BL TYPE STANDARD TABLE OF /ACCGO/STL_S_HIST_BL,
      WA_/ACCGO/STL_S_HIST_BL TYPE /ACCGO/STL_S_HIST_BL,
      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: </ACCGO/STL_S_HIST_BL> TYPE /ACCGO/STL_S_HIST_BL.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ACCGO/STL_S_HIST_BL
  INTO TABLE IT_/ACCGO/STL_S_HIST_BL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/STL_S_HIST_BL
*  INTO TABLE @DATA(IT_/ACCGO/STL_S_HIST_BL2).
*--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_/ACCGO/STL_S_HIST_BL INDEX 1 INTO DATA(WA_/ACCGO/STL_S_HIST_BL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ACCGO/STL_S_HIST_BL ASSIGNING </ACCGO/STL_S_HIST_BL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/STL_S_HIST_BL>-MANDT = 1.
</ACCGO/STL_S_HIST_BL>-STL_HEADER_GUID = 1.
</ACCGO/STL_S_HIST_BL>-EBELN = 1.
</ACCGO/STL_S_HIST_BL>-EBELP = 1.
</ACCGO/STL_S_HIST_BL>-KSCHL = 1.

ENDLOOP.

LOOP AT IT_/ACCGO/STL_S_HIST_BL INTO WA_/ACCGO/STL_S_HIST_BL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/STL_S_HIST_BL-SAKN1, sy-vline,
  WA_/ACCGO/STL_S_HIST_BL-POSTED_AMOUNT, sy-vline,
  WA_/ACCGO/STL_S_HIST_BL-POSTED_AMOUNT_CURR, sy-vline,
  WA_/ACCGO/STL_S_HIST_BL-KWERT, sy-vline,
  WA_/ACCGO/STL_S_HIST_BL-WAERS, sy-vline,
  WA_/ACCGO/STL_S_HIST_BL-GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/STL_S_HIST_BL 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_/ACCGO/STL_S_HIST_BL 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_/ACCGO/STL_S_HIST_BL INTO WA_/ACCGO/STL_S_HIST_BL.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_HIST_BL-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_HIST_BL-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAKN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_HIST_BL-SAKN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_HIST_BL-SAKN1.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GJAHR, internal->external for field SETTL_YR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_HIST_BL-SETTL_YR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_HIST_BL-SETTL_YR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit GJAHR, internal->external for field INVOICE_DOC_YR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_HIST_BL-INVOICE_DOC_YR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_HIST_BL-INVOICE_DOC_YR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_HIST_BL-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_HIST_BL-CREATED_ON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHANGED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_/ACCGO/STL_S_HIST_BL-CHANGED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ACCGO/STL_S_HIST_BL-CHANGED_ON.
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_/ACCGO/STL_S_HIST_BL_STR, 
MANDT TYPE STRING,
STL_HEADER_GUID TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
KSCHL TYPE STRING,
SAKN1 TYPE STRING,
POSTED_AMOUNT TYPE STRING,
POSTED_AMOUNT_CURR TYPE STRING,
KWERT TYPE STRING,
WAERS TYPE STRING,
GUID TYPE STRING,
GROUP_ID TYPE STRING,
GROUP_YR TYPE STRING,
SETTL_DOC TYPE STRING,
SETTL_YR TYPE STRING,
SETTL_CAT TYPE STRING,
APPLDOC TYPE STRING,
APPLDOC_ITEM TYPE STRING,
WBELN TYPE STRING,
POSNR TYPE STRING,
SHKZG TYPE STRING,
INVOICE_DOC TYPE STRING,
INVOICE_DOC_YR TYPE STRING,
CREATED_BY TYPE STRING,
CREATED_ON TYPE STRING,
CHANGED_BY TYPE STRING,
CHANGED_ON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/STL_S_HIST_BL_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_/ACCGO/STL_S_HIST_BL_STR-MANDT sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-STL_HEADER_GUID sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-EBELN sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-EBELP sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-KSCHL sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-SAKN1 sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-POSTED_AMOUNT sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-POSTED_AMOUNT_CURR sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-KWERT sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-WAERS sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-GUID sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-GROUP_ID sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-GROUP_YR sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-SETTL_DOC sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-SETTL_YR sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-SETTL_CAT sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-APPLDOC sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-APPLDOC_ITEM sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-WBELN sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-POSNR sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-SHKZG sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-INVOICE_DOC sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-INVOICE_DOC_YR sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-CREATED_BY sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-CREATED_ON sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-CHANGED_BY sy-vline 
WA_/ACCGO/STL_S_HIST_BL_STR-CHANGED_ON sy-vline      INTO ld_text SEPARATED BY SPACE.

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