ABAP Select data from SAP table FINS_MIG_ANEK into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FINS_MIG_ANEK
*  INTO TABLE @DATA(IT_FINS_MIG_ANEK2).
*--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_FINS_MIG_ANEK INDEX 1 INTO DATA(WA_FINS_MIG_ANEK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FINS_MIG_ANEK>-MANDT = 1.
<FINS_MIG_ANEK>-BUKRS = 1.
<FINS_MIG_ANEK>-ANLN1 = 1.
<FINS_MIG_ANEK>-ANLN2 = 1.
<FINS_MIG_ANEK>-GJAHR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FINS_MIG_ANEK-SUBTA, sy-vline,
  WA_FINS_MIG_ANEK-XANTEI, sy-vline,
  WA_FINS_MIG_ANEK-BELNR, sy-vline,
  WA_FINS_MIG_ANEK-AWSYS, sy-vline,
  WA_FINS_MIG_ANEK-AWTYP, sy-vline,
  WA_FINS_MIG_ANEK-AWKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FINS_MIG_ANEK 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_FINS_MIG_ANEK 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_FINS_MIG_ANEK INTO WA_FINS_MIG_ANEK.


*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 ANLN1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_MIG_ANEK-ANLN1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_MIG_ANEK-ANLN1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLN2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_MIG_ANEK-ANLN2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_MIG_ANEK-ANLN2.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field AWSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FINS_MIG_ANEK-AWSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FINS_MIG_ANEK-AWSYS.
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_FINS_MIG_ANEK_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
ANLN1 TYPE STRING,
ANLN2 TYPE STRING,
GJAHR TYPE STRING,
SUBTA TYPE STRING,
XANTEI TYPE STRING,
BELNR TYPE STRING,
AWSYS TYPE STRING,
AWTYP TYPE STRING,
AWKEY TYPE STRING,
X_REC_NEW TYPE STRING,
X_REC_REMIG TYPE STRING,
PACKAGE_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FINS_MIG_ANEK_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_FINS_MIG_ANEK_STR-MANDT sy-vline 
WA_FINS_MIG_ANEK_STR-BUKRS sy-vline 
WA_FINS_MIG_ANEK_STR-ANLN1 sy-vline 
WA_FINS_MIG_ANEK_STR-ANLN2 sy-vline 
WA_FINS_MIG_ANEK_STR-GJAHR sy-vline 
WA_FINS_MIG_ANEK_STR-SUBTA sy-vline 
WA_FINS_MIG_ANEK_STR-XANTEI sy-vline 
WA_FINS_MIG_ANEK_STR-BELNR sy-vline 
WA_FINS_MIG_ANEK_STR-AWSYS sy-vline 
WA_FINS_MIG_ANEK_STR-AWTYP sy-vline 
WA_FINS_MIG_ANEK_STR-AWKEY sy-vline 
WA_FINS_MIG_ANEK_STR-X_REC_NEW sy-vline 
WA_FINS_MIG_ANEK_STR-X_REC_REMIG sy-vline 
WA_FINS_MIG_ANEK_STR-PACKAGE_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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