ABAP Select data from SAP table EWUFI_BAL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWUFI_BAL
*  INTO TABLE @DATA(IT_EWUFI_BAL2).
*--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_EWUFI_BAL INDEX 1 INTO DATA(WA_EWUFI_BAL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWUFI_BAL>-MANDT = 1.
<EWUFI_BAL>-PAKET = 1.
<EWUFI_BAL>-PHASE = 1.
<EWUFI_BAL>-TYPE = 1.
<EWUFI_BAL>-LFDNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWUFI_BAL-BUKRS, sy-vline,
  WA_EWUFI_BAL-KONTO, sy-vline,
  WA_EWUFI_BAL-GSBER, sy-vline,
  WA_EWUFI_BAL-RTCUR, sy-vline,
  WA_EWUFI_BAL-GJAHR, sy-vline,
  WA_EWUFI_BAL-POPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWUFI_BAL 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_EWUFI_BAL 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_EWUFI_BAL INTO WA_EWUFI_BAL.


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

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

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

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

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

*Conversion exit AC152, internal->external for field LCVT1_S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT1_S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT1_S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT1_E
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT1_E
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT1_E.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT1_D
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT1_D
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT1_D.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT2_S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT2_S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT2_S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT2_E
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT2_E
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT2_E.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT2_D
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT2_D
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT2_D.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT3_S
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT3_S
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT3_S.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT3_E
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT3_E
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT3_E.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC152, internal->external for field LCVT3_D
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-LCVT3_D
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-LCVT3_D.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWUFI_BAL-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWUFI_BAL-BELNR.
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_EWUFI_BAL_STR, 
MANDT TYPE STRING,
PAKET TYPE STRING,
PHASE TYPE STRING,
TYPE TYPE STRING,
LFDNR TYPE STRING,
BUKRS TYPE STRING,
KONTO TYPE STRING,
GSBER TYPE STRING,
RTCUR TYPE STRING,
GJAHR TYPE STRING,
POPER TYPE STRING,
SHBKZ TYPE STRING,
TSLVT_S TYPE STRING,
TSLVT_E TYPE STRING,
TSLVT_D TYPE STRING,
LCVT1_S TYPE STRING,
LCVT1_E TYPE STRING,
LCVT1_D TYPE STRING,
LCVT2_S TYPE STRING,
LCVT2_E TYPE STRING,
LCVT2_D TYPE STRING,
LCVT3_S TYPE STRING,
LCVT3_E TYPE STRING,
LCVT3_D TYPE STRING,
BELNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWUFI_BAL_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_EWUFI_BAL_STR-MANDT sy-vline 
WA_EWUFI_BAL_STR-PAKET sy-vline 
WA_EWUFI_BAL_STR-PHASE sy-vline 
WA_EWUFI_BAL_STR-TYPE sy-vline 
WA_EWUFI_BAL_STR-LFDNR sy-vline 
WA_EWUFI_BAL_STR-BUKRS sy-vline 
WA_EWUFI_BAL_STR-KONTO sy-vline 
WA_EWUFI_BAL_STR-GSBER sy-vline 
WA_EWUFI_BAL_STR-RTCUR sy-vline 
WA_EWUFI_BAL_STR-GJAHR sy-vline 
WA_EWUFI_BAL_STR-POPER sy-vline 
WA_EWUFI_BAL_STR-SHBKZ sy-vline 
WA_EWUFI_BAL_STR-TSLVT_S sy-vline 
WA_EWUFI_BAL_STR-TSLVT_E sy-vline 
WA_EWUFI_BAL_STR-TSLVT_D sy-vline 
WA_EWUFI_BAL_STR-LCVT1_S sy-vline 
WA_EWUFI_BAL_STR-LCVT1_E sy-vline 
WA_EWUFI_BAL_STR-LCVT1_D sy-vline 
WA_EWUFI_BAL_STR-LCVT2_S sy-vline 
WA_EWUFI_BAL_STR-LCVT2_E sy-vline 
WA_EWUFI_BAL_STR-LCVT2_D sy-vline 
WA_EWUFI_BAL_STR-LCVT3_S sy-vline 
WA_EWUFI_BAL_STR-LCVT3_E sy-vline 
WA_EWUFI_BAL_STR-LCVT3_D sy-vline 
WA_EWUFI_BAL_STR-BELNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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