ABAP Select data from SAP table U_16202 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP U_16202 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_16202. 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_16202 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_16202 TYPE STANDARD TABLE OF U_16202,
      WA_U_16202 TYPE U_16202,
      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_16202> TYPE U_16202.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_U_16202.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM U_16202
  INTO TABLE IT_U_16202.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM U_16202
*  INTO TABLE @DATA(IT_U_162022).
*--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_16202 INDEX 1 INTO DATA(WA_U_162022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_U_16202 ASSIGNING <U_16202>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<U_16202>-MANDT = 1.
<U_16202>-VBELN = 1.
<U_16202>-KUNNR = 1.
<U_16202>-ERDAT = 1.
<U_16202>-ERZET = 1.

ENDLOOP.

LOOP AT IT_U_16202 INTO WA_U_16202.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_U_16202-ERNAM, sy-vline,
  WA_U_16202-ANGDT, sy-vline,
  WA_U_16202-BNDDT, sy-vline,
  WA_U_16202-AUDAT, sy-vline,
  WA_U_16202-VBTYP, sy-vline,
  WA_U_16202-TRVOG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_U_16202 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_16202 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_16202 INTO WA_U_16202.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-AUART.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STAFO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-STAFO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-STAFO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNKLI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-KNKLI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-KNKLI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-VGBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-VGBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSK
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-KURSK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-KURSK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field STCUR
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_U_16202-STCUR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_U_16202-STCUR.
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_16202_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
KUNNR TYPE STRING,
ERDAT TYPE STRING,
ERZET TYPE STRING,
ERNAM TYPE STRING,
ANGDT TYPE STRING,
BNDDT TYPE STRING,
AUDAT TYPE STRING,
VBTYP TYPE STRING,
TRVOG TYPE STRING,
AUART TYPE STRING,
AUGRU TYPE STRING,
GWLDT TYPE STRING,
SUBMI TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
VKBUR TYPE STRING,
GSBER TYPE STRING,
GSKST TYPE STRING,
KNUMV TYPE STRING,
VDATU TYPE STRING,
VPRGR TYPE STRING,
AUTLF TYPE STRING,
VBKLA TYPE STRING,
VBKLT TYPE STRING,
KALSM TYPE STRING,
VSBED TYPE STRING,
FKARA TYPE STRING,
AWAHR TYPE STRING,
KTEXT TYPE STRING,
BSTNK TYPE STRING,
BSARK TYPE STRING,
BSTDK TYPE STRING,
BSTZD TYPE STRING,
IHREZ TYPE STRING,
BNAME TYPE STRING,
TELF1 TYPE STRING,
STAFO TYPE STRING,
STWAE TYPE STRING,
AEDAT TYPE STRING,
KVGR1 TYPE STRING,
KVGR2 TYPE STRING,
KVGR3 TYPE STRING,
KVGR4 TYPE STRING,
KVGR5 TYPE STRING,
KKBER TYPE STRING,
KNKLI TYPE STRING,
KURST TYPE STRING,
GRUPP TYPE STRING,
SBGRP TYPE STRING,
CTLPC TYPE STRING,
CMWAE TYPE STRING,
CMFRE TYPE STRING,
CMNUP TYPE STRING,
CMNGV TYPE STRING,
AMTBL TYPE STRING,
HITYP_PR TYPE STRING,
OBJNR TYPE STRING,
BUKRS_VF TYPE STRING,
TAXK1 TYPE STRING,
TAXK2 TYPE STRING,
TAXK3 TYPE STRING,
TAXK4 TYPE STRING,
TAXK5 TYPE STRING,
TAXK6 TYPE STRING,
TAXK7 TYPE STRING,
TAXK8 TYPE STRING,
TAXK9 TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
VGTYP TYPE STRING,
VGBEL TYPE STRING,
KALSM_CH TYPE STRING,
AGRZR TYPE STRING,
KONDA TYPE STRING,
KDGRP TYPE STRING,
BZIRK TYPE STRING,
PLTYP TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
KZAZU TYPE STRING,
VALTG TYPE STRING,
VALDT TYPE STRING,
ZTERM TYPE STRING,
ZLSCH TYPE STRING,
KTGRD TYPE STRING,
KURSK TYPE STRING,
PRSDT TYPE STRING,
FKDAT TYPE STRING,
FBUDA TYPE STRING,
GJAHR TYPE STRING,
POPER TYPE STRING,
STCUR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_U_16202_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_16202_STR-MANDT sy-vline 
WA_U_16202_STR-VBELN sy-vline 
WA_U_16202_STR-KUNNR sy-vline 
WA_U_16202_STR-ERDAT sy-vline 
WA_U_16202_STR-ERZET sy-vline 
WA_U_16202_STR-ERNAM sy-vline 
WA_U_16202_STR-ANGDT sy-vline 
WA_U_16202_STR-BNDDT sy-vline 
WA_U_16202_STR-AUDAT sy-vline 
WA_U_16202_STR-VBTYP sy-vline 
WA_U_16202_STR-TRVOG sy-vline 
WA_U_16202_STR-AUART sy-vline 
WA_U_16202_STR-AUGRU sy-vline 
WA_U_16202_STR-GWLDT sy-vline 
WA_U_16202_STR-SUBMI sy-vline 
WA_U_16202_STR-NETWR sy-vline 
WA_U_16202_STR-WAERK sy-vline 
WA_U_16202_STR-VKORG sy-vline 
WA_U_16202_STR-VTWEG sy-vline 
WA_U_16202_STR-SPART sy-vline 
WA_U_16202_STR-VKGRP sy-vline 
WA_U_16202_STR-VKBUR sy-vline 
WA_U_16202_STR-GSBER sy-vline 
WA_U_16202_STR-GSKST sy-vline 
WA_U_16202_STR-KNUMV sy-vline 
WA_U_16202_STR-VDATU sy-vline 
WA_U_16202_STR-VPRGR sy-vline 
WA_U_16202_STR-AUTLF sy-vline 
WA_U_16202_STR-VBKLA sy-vline 
WA_U_16202_STR-VBKLT sy-vline 
WA_U_16202_STR-KALSM sy-vline 
WA_U_16202_STR-VSBED sy-vline 
WA_U_16202_STR-FKARA sy-vline 
WA_U_16202_STR-AWAHR sy-vline 
WA_U_16202_STR-KTEXT sy-vline 
WA_U_16202_STR-BSTNK sy-vline 
WA_U_16202_STR-BSARK sy-vline 
WA_U_16202_STR-BSTDK sy-vline 
WA_U_16202_STR-BSTZD sy-vline 
WA_U_16202_STR-IHREZ sy-vline 
WA_U_16202_STR-BNAME sy-vline 
WA_U_16202_STR-TELF1 sy-vline 
WA_U_16202_STR-STAFO sy-vline 
WA_U_16202_STR-STWAE sy-vline 
WA_U_16202_STR-AEDAT sy-vline 
WA_U_16202_STR-KVGR1 sy-vline 
WA_U_16202_STR-KVGR2 sy-vline 
WA_U_16202_STR-KVGR3 sy-vline 
WA_U_16202_STR-KVGR4 sy-vline 
WA_U_16202_STR-KVGR5 sy-vline 
WA_U_16202_STR-KKBER sy-vline 
WA_U_16202_STR-KNKLI sy-vline 
WA_U_16202_STR-KURST sy-vline 
WA_U_16202_STR-GRUPP sy-vline 
WA_U_16202_STR-SBGRP sy-vline 
WA_U_16202_STR-CTLPC sy-vline 
WA_U_16202_STR-CMWAE sy-vline 
WA_U_16202_STR-CMFRE sy-vline 
WA_U_16202_STR-CMNUP sy-vline 
WA_U_16202_STR-CMNGV sy-vline 
WA_U_16202_STR-AMTBL sy-vline 
WA_U_16202_STR-HITYP_PR sy-vline 
WA_U_16202_STR-OBJNR sy-vline 
WA_U_16202_STR-BUKRS_VF sy-vline 
WA_U_16202_STR-TAXK1 sy-vline 
WA_U_16202_STR-TAXK2 sy-vline 
WA_U_16202_STR-TAXK3 sy-vline 
WA_U_16202_STR-TAXK4 sy-vline 
WA_U_16202_STR-TAXK5 sy-vline 
WA_U_16202_STR-TAXK6 sy-vline 
WA_U_16202_STR-TAXK7 sy-vline 
WA_U_16202_STR-TAXK8 sy-vline 
WA_U_16202_STR-TAXK9 sy-vline 
WA_U_16202_STR-XBLNR sy-vline 
WA_U_16202_STR-ZUONR sy-vline 
WA_U_16202_STR-VGTYP sy-vline 
WA_U_16202_STR-VGBEL sy-vline 
WA_U_16202_STR-KALSM_CH sy-vline 
WA_U_16202_STR-AGRZR sy-vline 
WA_U_16202_STR-KONDA sy-vline 
WA_U_16202_STR-KDGRP sy-vline 
WA_U_16202_STR-BZIRK sy-vline 
WA_U_16202_STR-PLTYP sy-vline 
WA_U_16202_STR-INCO1 sy-vline 
WA_U_16202_STR-INCO2 sy-vline 
WA_U_16202_STR-KZAZU sy-vline 
WA_U_16202_STR-VALTG sy-vline 
WA_U_16202_STR-VALDT sy-vline 
WA_U_16202_STR-ZTERM sy-vline 
WA_U_16202_STR-ZLSCH sy-vline 
WA_U_16202_STR-KTGRD sy-vline 
WA_U_16202_STR-KURSK sy-vline 
WA_U_16202_STR-PRSDT sy-vline 
WA_U_16202_STR-FKDAT sy-vline 
WA_U_16202_STR-FBUDA sy-vline 
WA_U_16202_STR-GJAHR sy-vline 
WA_U_16202_STR-POPER sy-vline 
WA_U_16202_STR-STCUR sy-vline      INTO ld_text SEPARATED BY SPACE.

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