ABAP Select data from SAP table FIAR_SALES_HEADER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIAR_SALES_HEADER
*  INTO TABLE @DATA(IT_FIAR_SALES_HEADER2).
*--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_FIAR_SALES_HEADER INDEX 1 INTO DATA(WA_FIAR_SALES_HEADER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIAR_SALES_HEADER>-BUKRS = 1.
<FIAR_SALES_HEADER>-DOC_NUM = 1.
<FIAR_SALES_HEADER>-GJAHR = 1.
<FIAR_SALES_HEADER>-DOC_DATE = 1.
<FIAR_SALES_HEADER>-DOC_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIAR_SALES_HEADER-BRANCH, sy-vline,
  WA_FIAR_SALES_HEADER-OFC_DOC_NUM, sy-vline,
  WA_FIAR_SALES_HEADER-OFC_DOC_NUM_UPTO, sy-vline,
  WA_FIAR_SALES_HEADER-ACCOUNT_NO, sy-vline,
  WA_FIAR_SALES_HEADER-CUST_ID_CODE, sy-vline,
  WA_FIAR_SALES_HEADER-CUST_ID_NUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIAR_SALES_HEADER 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_FIAR_SALES_HEADER 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_FIAR_SALES_HEADER INTO WA_FIAR_SALES_HEADER.


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

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

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

*Conversion exit AC152, internal->external for field TOTAL_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-TOTAL_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-TOTAL_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field CONC_NET_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-CONC_NET_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-CONC_NET_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PERC_NC_AMNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-PERC_NC_AMNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-PERC_NC_AMNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field EXEMPT_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-EXEMPT_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-EXEMPT_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field PERC_AMT_NT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-PERC_AMT_NT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-PERC_AMT_NT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field GI_TAX_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-GI_TAX_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-GI_TAX_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field MCL_TAX_AMNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-MCL_TAX_AMNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-MCL_TAX_AMNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field INT_TAX_AMT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-INT_TAX_AMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-INT_TAX_AMT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHNG_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-EXCHNG_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-EXCHNG_RATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field OT_TAXES
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_FIAR_SALES_HEADER-OT_TAXES
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIAR_SALES_HEADER-OT_TAXES.
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_FIAR_SALES_HEADER_STR, 
BUKRS TYPE STRING,
DOC_NUM TYPE STRING,
GJAHR TYPE STRING,
DOC_DATE TYPE STRING,
DOC_TYPE TYPE STRING,
BRANCH TYPE STRING,
OFC_DOC_NUM TYPE STRING,
OFC_DOC_NUM_UPTO TYPE STRING,
ACCOUNT_NO TYPE STRING,
CUST_ID_CODE TYPE STRING,
CUST_ID_NUM TYPE STRING,
CUST_NAME TYPE STRING,
TOTAL_AMT TYPE STRING,
CONC_NET_AMT TYPE STRING,
PERC_NC_AMNT TYPE STRING,
EXEMPT_AMT TYPE STRING,
PERC_AMT_NT TYPE STRING,
GI_TAX_AMT TYPE STRING,
MCL_TAX_AMNT TYPE STRING,
INT_TAX_AMT TYPE STRING,
CURR_CODE TYPE STRING,
EXCHNG_RATE TYPE STRING,
NO_OF_VAT_RATES TYPE STRING,
OP_CODE TYPE STRING,
OT_TAXES TYPE STRING,
DUE_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIAR_SALES_HEADER_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_FIAR_SALES_HEADER_STR-BUKRS sy-vline 
WA_FIAR_SALES_HEADER_STR-DOC_NUM sy-vline 
WA_FIAR_SALES_HEADER_STR-GJAHR sy-vline 
WA_FIAR_SALES_HEADER_STR-DOC_DATE sy-vline 
WA_FIAR_SALES_HEADER_STR-DOC_TYPE sy-vline 
WA_FIAR_SALES_HEADER_STR-BRANCH sy-vline 
WA_FIAR_SALES_HEADER_STR-OFC_DOC_NUM sy-vline 
WA_FIAR_SALES_HEADER_STR-OFC_DOC_NUM_UPTO sy-vline 
WA_FIAR_SALES_HEADER_STR-ACCOUNT_NO sy-vline 
WA_FIAR_SALES_HEADER_STR-CUST_ID_CODE sy-vline 
WA_FIAR_SALES_HEADER_STR-CUST_ID_NUM sy-vline 
WA_FIAR_SALES_HEADER_STR-CUST_NAME sy-vline 
WA_FIAR_SALES_HEADER_STR-TOTAL_AMT sy-vline 
WA_FIAR_SALES_HEADER_STR-CONC_NET_AMT sy-vline 
WA_FIAR_SALES_HEADER_STR-PERC_NC_AMNT sy-vline 
WA_FIAR_SALES_HEADER_STR-EXEMPT_AMT sy-vline 
WA_FIAR_SALES_HEADER_STR-PERC_AMT_NT sy-vline 
WA_FIAR_SALES_HEADER_STR-GI_TAX_AMT sy-vline 
WA_FIAR_SALES_HEADER_STR-MCL_TAX_AMNT sy-vline 
WA_FIAR_SALES_HEADER_STR-INT_TAX_AMT sy-vline 
WA_FIAR_SALES_HEADER_STR-CURR_CODE sy-vline 
WA_FIAR_SALES_HEADER_STR-EXCHNG_RATE sy-vline 
WA_FIAR_SALES_HEADER_STR-NO_OF_VAT_RATES sy-vline 
WA_FIAR_SALES_HEADER_STR-OP_CODE sy-vline 
WA_FIAR_SALES_HEADER_STR-OT_TAXES sy-vline 
WA_FIAR_SALES_HEADER_STR-DUE_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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