ABAP Select data from SAP table U_16214 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_16214 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 U_16214. 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 U_16214 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_U_16214 TYPE STANDARD TABLE OF U_16214,
      WA_U_16214 TYPE U_16214,
      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: <U_16214> TYPE U_16214.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_16214.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_16214
  INTO TABLE IT_U_16214.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_16214
*  INTO TABLE @DATA(IT_U_162142).
*--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_U_16214 INDEX 1 INTO DATA(WA_U_162142).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_16214 ASSIGNING <U_16214>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_16214>-MANDT = 1.
<U_16214>-KNUMA = 1.
<U_16214>-VKORG = 1.
<U_16214>-VTWEG = 1.
<U_16214>-SPART = 1.

ENDLOOP.

LOOP AT IT_U_16214 INTO WA_U_16214.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_16214-VKBUR, sy-vline,
  WA_U_16214-VKGRP, sy-vline,
  WA_U_16214-BOART, sy-vline,
  WA_U_16214-ABTYP, sy-vline,
  WA_U_16214-KAPPL, sy-vline,
  WA_U_16214-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_16214 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_U_16214 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_U_16214 INTO WA_U_16214.


*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 KNUMA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_16214-KNUMA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16214-KNUMA.
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_U_16214_STR, 
MANDT TYPE STRING,
KNUMA TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
BOART TYPE STRING,
ABTYP TYPE STRING,
KAPPL TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AEZET TYPE STRING,
WAERS TYPE STRING,
ABREX TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
KOBOG TYPE STRING,
BOTEXT TYPE STRING,
VALTG TYPE STRING,
VALDT TYPE STRING,
ZTERM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_16214_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_U_16214_STR-MANDT sy-vline 
WA_U_16214_STR-KNUMA sy-vline 
WA_U_16214_STR-VKORG sy-vline 
WA_U_16214_STR-VTWEG sy-vline 
WA_U_16214_STR-SPART sy-vline 
WA_U_16214_STR-VKBUR sy-vline 
WA_U_16214_STR-VKGRP sy-vline 
WA_U_16214_STR-BOART sy-vline 
WA_U_16214_STR-ABTYP sy-vline 
WA_U_16214_STR-KAPPL sy-vline 
WA_U_16214_STR-ERNAM sy-vline 
WA_U_16214_STR-ERDAT sy-vline 
WA_U_16214_STR-ERZET sy-vline 
WA_U_16214_STR-AENAM sy-vline 
WA_U_16214_STR-AEDAT sy-vline 
WA_U_16214_STR-AEZET sy-vline 
WA_U_16214_STR-WAERS sy-vline 
WA_U_16214_STR-ABREX sy-vline 
WA_U_16214_STR-DATAB sy-vline 
WA_U_16214_STR-DATBI sy-vline 
WA_U_16214_STR-KOBOG sy-vline 
WA_U_16214_STR-BOTEXT sy-vline 
WA_U_16214_STR-VALTG sy-vline 
WA_U_16214_STR-VALDT sy-vline 
WA_U_16214_STR-ZTERM sy-vline      INTO ld_text SEPARATED BY SPACE.

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