ABAP Select data from SAP table GOVENDOR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP GOVENDOR 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 GOVENDOR. 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 GOVENDOR 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_GOVENDOR TYPE STANDARD TABLE OF GOVENDOR,
      WA_GOVENDOR TYPE GOVENDOR,
      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: <GOVENDOR> TYPE GOVENDOR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GOVENDOR
*  INTO TABLE @DATA(IT_GOVENDOR2).
*--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_GOVENDOR INDEX 1 INTO DATA(WA_GOVENDOR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GOVENDOR>-LIFNR = 1.
<GOVENDOR>-VENDORNAME = 1.
<GOVENDOR>-VENDORZIP = 1.
<GOVENDOR>-VENDORADD = 1.
<GOVENDOR>-EMLIF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GOVENDOR-RECVENDNAME, sy-vline,
  WA_GOVENDOR-LLIEF, sy-vline,
  WA_GOVENDOR-SUPVENDNAME, sy-vline,
  WA_GOVENDOR-EKGRP, sy-vline,
  WA_GOVENDOR-EKORG, sy-vline,
  WA_GOVENDOR-POUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GOVENDOR 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_GOVENDOR 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_GOVENDOR INTO WA_GOVENDOR.


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

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

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

*Conversion exit SXIDN, internal->external for field POUSERNAME
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_GOVENDOR-POUSERNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOVENDOR-POUSERNAME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit SXIDN, internal->external for field BUYER
CALL FUNCTION 'CONVERSION_EXIT_SXIDN_OUTPUT'
  EXPORTING
    input =                      WA_GOVENDOR-BUYER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GOVENDOR-BUYER.
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_GOVENDOR_STR, 
LIFNR TYPE STRING,
VENDORNAME TYPE STRING,
VENDORZIP TYPE STRING,
VENDORADD TYPE STRING,
EMLIF TYPE STRING,
RECVENDNAME TYPE STRING,
LLIEF TYPE STRING,
SUPVENDNAME TYPE STRING,
EKGRP TYPE STRING,
EKORG TYPE STRING,
POUSER TYPE STRING,
TELPOUSER TYPE STRING,
POUSERNAME TYPE STRING,
BSAKZ TYPE STRING,
BUYER TYPE STRING,
TELNR1 TYPE STRING,
RESWK TYPE STRING,
RESWKNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GOVENDOR_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_GOVENDOR_STR-LIFNR sy-vline 
WA_GOVENDOR_STR-VENDORNAME sy-vline 
WA_GOVENDOR_STR-VENDORZIP sy-vline 
WA_GOVENDOR_STR-VENDORADD sy-vline 
WA_GOVENDOR_STR-EMLIF sy-vline 
WA_GOVENDOR_STR-RECVENDNAME sy-vline 
WA_GOVENDOR_STR-LLIEF sy-vline 
WA_GOVENDOR_STR-SUPVENDNAME sy-vline 
WA_GOVENDOR_STR-EKGRP sy-vline 
WA_GOVENDOR_STR-EKORG sy-vline 
WA_GOVENDOR_STR-POUSER sy-vline 
WA_GOVENDOR_STR-TELPOUSER sy-vline 
WA_GOVENDOR_STR-POUSERNAME sy-vline 
WA_GOVENDOR_STR-BSAKZ sy-vline 
WA_GOVENDOR_STR-BUYER sy-vline 
WA_GOVENDOR_STR-TELNR1 sy-vline 
WA_GOVENDOR_STR-RESWK sy-vline 
WA_GOVENDOR_STR-RESWKNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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