ABAP Select data from SAP table VEEWA_GUARANTOR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VEEWA_GUARANTOR
*  INTO TABLE @DATA(IT_VEEWA_GUARANTOR2).
*--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_VEEWA_GUARANTOR INDEX 1 INTO DATA(WA_VEEWA_GUARANTOR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VEEWA_GUARANTOR>-MANDT = 1.
<VEEWA_GUARANTOR>-GGVERTRAG = 1.
<VEEWA_GUARANTOR>-GGTYP = 1.
<VEEWA_GUARANTOR>-GVERTRAG = 1.
<VEEWA_GUARANTOR>-KVERTRAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VEEWA_GUARANTOR-VERTRAGSGEBIET, sy-vline,
  WA_VEEWA_GUARANTOR-ANFALLSTELLENNR, sy-vline,
  WA_VEEWA_GUARANTOR-WERK_GG, sy-vline,
  WA_VEEWA_GUARANTOR-LGORT_GG, sy-vline,
  WA_VEEWA_GUARANTOR-GSDVERTRAG, sy-vline,
  WA_VEEWA_GUARANTOR-KSDVERTRAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VEEWA_GUARANTOR 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_VEEWA_GUARANTOR 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_VEEWA_GUARANTOR INTO WA_VEEWA_GUARANTOR.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field KSDVERTRAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VEEWA_GUARANTOR-KSDVERTRAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VEEWA_GUARANTOR-KSDVERTRAG.
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_VEEWA_GUARANTOR_STR, 
MANDT TYPE STRING,
GGVERTRAG TYPE STRING,
GGTYP TYPE STRING,
GVERTRAG TYPE STRING,
KVERTRAG TYPE STRING,
VERTRAGSGEBIET TYPE STRING,
ANFALLSTELLENNR TYPE STRING,
WERK_GG TYPE STRING,
LGORT_GG TYPE STRING,
GSDVERTRAG TYPE STRING,
KSDVERTRAG TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
KZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VEEWA_GUARANTOR_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_VEEWA_GUARANTOR_STR-MANDT sy-vline 
WA_VEEWA_GUARANTOR_STR-GGVERTRAG sy-vline 
WA_VEEWA_GUARANTOR_STR-GGTYP sy-vline 
WA_VEEWA_GUARANTOR_STR-GVERTRAG sy-vline 
WA_VEEWA_GUARANTOR_STR-KVERTRAG sy-vline 
WA_VEEWA_GUARANTOR_STR-VERTRAGSGEBIET sy-vline 
WA_VEEWA_GUARANTOR_STR-ANFALLSTELLENNR sy-vline 
WA_VEEWA_GUARANTOR_STR-WERK_GG sy-vline 
WA_VEEWA_GUARANTOR_STR-LGORT_GG sy-vline 
WA_VEEWA_GUARANTOR_STR-GSDVERTRAG sy-vline 
WA_VEEWA_GUARANTOR_STR-KSDVERTRAG sy-vline 
WA_VEEWA_GUARANTOR_STR-ERDAT sy-vline 
WA_VEEWA_GUARANTOR_STR-ERNAM sy-vline 
WA_VEEWA_GUARANTOR_STR-AEDAT sy-vline 
WA_VEEWA_GUARANTOR_STR-AENAM sy-vline 
WA_VEEWA_GUARANTOR_STR-BEGRU sy-vline 
WA_VEEWA_GUARANTOR_STR-LOEVM sy-vline 
WA_VEEWA_GUARANTOR_STR-KZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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