ABAP Select data from SAP table ISU_C4C_ACCOUNT_HIST_S into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ISU_C4C_ACCOUNT_HIST_S 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 ISU_C4C_ACCOUNT_HIST_S. 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 ISU_C4C_ACCOUNT_HIST_S 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_ISU_C4C_ACCOUNT_HIST_S TYPE STANDARD TABLE OF ISU_C4C_ACCOUNT_HIST_S,
      WA_ISU_C4C_ACCOUNT_HIST_S TYPE ISU_C4C_ACCOUNT_HIST_S,
      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: <ISU_C4C_ACCOUNT_HIST_S> TYPE ISU_C4C_ACCOUNT_HIST_S.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ISU_C4C_ACCOUNT_HIST_S.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ISU_C4C_ACCOUNT_HIST_S
  INTO TABLE IT_ISU_C4C_ACCOUNT_HIST_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISU_C4C_ACCOUNT_HIST_S
*  INTO TABLE @DATA(IT_ISU_C4C_ACCOUNT_HIST_S2).
*--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_ISU_C4C_ACCOUNT_HIST_S INDEX 1 INTO DATA(WA_ISU_C4C_ACCOUNT_HIST_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ISU_C4C_ACCOUNT_HIST_S ASSIGNING <ISU_C4C_ACCOUNT_HIST_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISU_C4C_ACCOUNT_HIST_S>-DOCUMENT_NUMBER = 1.
<ISU_C4C_ACCOUNT_HIST_S>-DOCUMENT_TYPE = 1.
<ISU_C4C_ACCOUNT_HIST_S>-CUSTOMER_ID = 1.
<ISU_C4C_ACCOUNT_HIST_S>-CONTR_ACCT = 1.
<ISU_C4C_ACCOUNT_HIST_S>-CONTRACT = 1.

ENDLOOP.

LOOP AT IT_ISU_C4C_ACCOUNT_HIST_S INTO WA_ISU_C4C_ACCOUNT_HIST_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISU_C4C_ACCOUNT_HIST_S-DUE_DATE, sy-vline,
  WA_ISU_C4C_ACCOUNT_HIST_S-POSTING_DATE, sy-vline,
  WA_ISU_C4C_ACCOUNT_HIST_S-ORIGIN_TEXT, sy-vline,
  WA_ISU_C4C_ACCOUNT_HIST_S-OPEN_AMOUNT, sy-vline,
  WA_ISU_C4C_ACCOUNT_HIST_S-AMOUNT, sy-vline,
  WA_ISU_C4C_ACCOUNT_HIST_S-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISU_C4C_ACCOUNT_HIST_S 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_ISU_C4C_ACCOUNT_HIST_S 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_ISU_C4C_ACCOUNT_HIST_S INTO WA_ISU_C4C_ACCOUNT_HIST_S.


*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 DOCUMENT_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_ACCOUNT_HIST_S-DOCUMENT_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_ACCOUNT_HIST_S-DOCUMENT_NUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CUSTOMER_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_ACCOUNT_HIST_S-CUSTOMER_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_ACCOUNT_HIST_S-CUSTOMER_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTR_ACCT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_ACCOUNT_HIST_S-CONTR_ACCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_ACCOUNT_HIST_S-CONTR_ACCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_ACCOUNT_HIST_S-CONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_ACCOUNT_HIST_S-CONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field TIME_STAMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_ISU_C4C_ACCOUNT_HIST_S-TIME_STAMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISU_C4C_ACCOUNT_HIST_S-TIME_STAMP.
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_ISU_C4C_ACCOUNT_HIST_S_STR, 
DOCUMENT_NUMBER TYPE STRING,
DOCUMENT_TYPE TYPE STRING,
CUSTOMER_ID TYPE STRING,
CONTR_ACCT TYPE STRING,
CONTRACT TYPE STRING,
DUE_DATE TYPE STRING,
POSTING_DATE TYPE STRING,
ORIGIN_TEXT TYPE STRING,
OPEN_AMOUNT TYPE STRING,
AMOUNT TYPE STRING,
CURRENCY TYPE STRING,
STATUS TYPE STRING,
CLEARING_REASON TYPE STRING,
CLEARING_DATE TYPE STRING,
CLEARING_AMOUNT TYPE STRING,
MAIN_TRANS_ID TYPE STRING,
SUB_TRANS_ID TYPE STRING,
SUB_TRANS_TXT TYPE STRING,
DUNNING_PROC_ID TYPE STRING,
DUNNING_PROC_TXT TYPE STRING,
CREATED_BY TYPE STRING,
STATISTICAL_ITEM TYPE STRING,
STATISTICAL_TEXT TYPE STRING,
COLLECTION_STRATEGY TYPE STRING,
COLLECTION_STEP TYPE STRING,
PAYMENT_METHOD TYPE STRING,
MAIN_TRANS_TXT TYPE STRING,
PAYMENT_METHOD_TXT TYPE STRING,
CURRENT_TOTAL_F TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,
ICON_ID TYPE STRING,
TIME_STAMP TYPE STRING,
CHR_KEY TYPE STRING,
DOC_ORIGIN_KEY TYPE STRING,
DATE_OF_ENTRY TYPE STRING,
TIME_OF_ENTRY TYPE STRING,
CURRENT_TOTAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISU_C4C_ACCOUNT_HIST_S_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_ISU_C4C_ACCOUNT_HIST_S_STR-DOCUMENT_NUMBER sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-DOCUMENT_TYPE sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CUSTOMER_ID sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CONTR_ACCT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CONTRACT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-DUE_DATE sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-POSTING_DATE sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-ORIGIN_TEXT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-OPEN_AMOUNT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-AMOUNT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CURRENCY sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-STATUS sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CLEARING_REASON sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CLEARING_DATE sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CLEARING_AMOUNT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-MAIN_TRANS_ID sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-SUB_TRANS_ID sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-SUB_TRANS_TXT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-DUNNING_PROC_ID sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-DUNNING_PROC_TXT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CREATED_BY sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-STATISTICAL_ITEM sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-STATISTICAL_TEXT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-COLLECTION_STRATEGY sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-COLLECTION_STEP sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-PAYMENT_METHOD sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-MAIN_TRANS_TXT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-PAYMENT_METHOD_TXT sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CURRENT_TOTAL_F sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-TEXT2 sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-TEXT3 sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-ICON_ID sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-TIME_STAMP sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CHR_KEY sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-DOC_ORIGIN_KEY sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-DATE_OF_ENTRY sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-TIME_OF_ENTRY sy-vline 
WA_ISU_C4C_ACCOUNT_HIST_S_STR-CURRENT_TOTAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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