ABAP Select data from SAP table TXI_TVLK 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 TXI_TVLK 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 TXI_TVLK. 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 TXI_TVLK 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_TXI_TVLK TYPE STANDARD TABLE OF TXI_TVLK,
      WA_TXI_TVLK TYPE TXI_TVLK,
      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: <TXI_TVLK> TYPE TXI_TVLK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_TVLK
*  INTO TABLE @DATA(IT_TXI_TVLK2).
*--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_TXI_TVLK INDEX 1 INTO DATA(WA_TXI_TVLK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_TVLK>-MANDT = 1.
<TXI_TVLK>-LFART = 1.
<TXI_TVLK>-KOPGR = 1.
<TXI_TVLK>-UEVOR = 1.
<TXI_TVLK>-TXN08 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_TVLK-UMFNG, sy-vline,
  WA_TXI_TVLK-NUMKI, sy-vline,
  WA_TXI_TVLK-NUMKE, sy-vline,
  WA_TXI_TVLK-NUMKIRULE, sy-vline,
  WA_TXI_TVLK-INCPO, sy-vline,
  WA_TXI_TVLK-PARGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_TVLK 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_TXI_TVLK 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_TXI_TVLK INTO WA_TXI_TVLK.


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

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

*Conversion exit TMPLA, internal->external for field TSEGTP
CALL FUNCTION 'CONVERSION_EXIT_TMPLA_OUTPUT'
  EXPORTING
    input =                      WA_TXI_TVLK-TSEGTP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_TVLK-TSEGTP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TDSPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_TXI_TVLK-TDSPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_TVLK-TDSPRAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field INT_TOCD_OFFSET_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TXI_TVLK-INT_TOCD_OFFSET_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_TVLK-INT_TOCD_OFFSET_UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field EXT_TOCD_OFFSET_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TXI_TVLK-EXT_TOCD_OFFSET_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_TVLK-EXT_TOCD_OFFSET_UNIT.
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_TXI_TVLK_STR, 
MANDT TYPE STRING,
LFART TYPE STRING,
KOPGR TYPE STRING,
UEVOR TYPE STRING,
TXN08 TYPE STRING,
UMFNG TYPE STRING,
NUMKI TYPE STRING,
NUMKE TYPE STRING,
NUMKIRULE TYPE STRING,
INCPO TYPE STRING,
PARGR TYPE STRING,
AUFER TYPE STRING,
DAART TYPE STRING,
POBED TYPE STRING,
REGGR TYPE STRING,
REGLG TYPE STRING,
WAAUS TYPE STRING,
ROUTF TYPE STRING,
VBTYP TYPE STRING,
TXTGR TYPE STRING,
ERNAM TYPE STRING,
KAPPL TYPE STRING,
KALSM TYPE STRING,
KSCHL TYPE STRING,
STGAK TYPE STRING,
CMGRL TYPE STRING,
CMGRK TYPE STRING,
CMGRW TYPE STRING,
QHERK TYPE STRING,
TRSPG TYPE STRING,
TDIIX TYPE STRING,
PROFIDNETZ TYPE STRING,
EXCOK TYPE STRING,
NEUTE TYPE STRING,
KALSP TYPE STRING,
FEHGR TYPE STRING,
LNSPL TYPE STRING,
AVERP TYPE STRING,
PM_ITEM_GEN TYPE STRING,
REGTB TYPE STRING,
BZOPS TYPE STRING,
EXCBC TYPE STRING,
EXCEM TYPE STRING,
EXCLG TYPE STRING,
J_1ADOCCLS TYPE STRING,
RFPL_SW TYPE STRING,
TSEGTP TYPE STRING,
UVEIB TYPE STRING,
DBTCH TYPE STRING,
DSFAD TYPE STRING,
SPOFI TYPE STRING,
OIDELDCM TYPE STRING,
SPE_NUMKT TYPE STRING,
SPE_NR_RECYCLING TYPE STRING,
BORGR_LIFEX_MUST TYPE STRING,
BORGR_LIFEX_UNQ TYPE STRING,
BORGR_LIFEX_EEDI TYPE STRING,
BORGR_LIFEX_EDIA TYPE STRING,
BORGR_SODET TYPE STRING,
HOLD_DATA TYPE STRING,
TDID TYPE STRING,
TDSPRAS TYPE STRING,
EDI_WEIGHTVOL TYPE STRING,
SPE_ENABLE_VALID TYPE STRING,
MSR_FKARA TYPE STRING,
FSH_AUDELOC TYPE STRING,
FSH_VASS_ACT TYPE STRING,
FSH_VASS_KALSM TYPE STRING,
FSH_VASS_CORR TYPE STRING,
RESTORE_ALLOC TYPE STRING,
ITMAC TYPE STRING,
SGT_IGNORE_SEG TYPE STRING,
RFM_BOM_CORR TYPE STRING,
RFM_VAS_QTY_CORR TYPE STRING,
RFM_MAIN_ITEM_CORR TYPE STRING,
FLEXNUM_ROUTINE_NO TYPE STRING,
INT_TOCD_OFFSET TYPE STRING,
INT_TOCD_OFFSET_UNIT TYPE STRING,
EXT_TOCD_OFFSET TYPE STRING,
EXT_TOCD_OFFSET_UNIT TYPE STRING,
RFM_VAS_PLANT_CHECK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_TVLK_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_TXI_TVLK_STR-MANDT sy-vline 
WA_TXI_TVLK_STR-LFART sy-vline 
WA_TXI_TVLK_STR-KOPGR sy-vline 
WA_TXI_TVLK_STR-UEVOR sy-vline 
WA_TXI_TVLK_STR-TXN08 sy-vline 
WA_TXI_TVLK_STR-UMFNG sy-vline 
WA_TXI_TVLK_STR-NUMKI sy-vline 
WA_TXI_TVLK_STR-NUMKE sy-vline 
WA_TXI_TVLK_STR-NUMKIRULE sy-vline 
WA_TXI_TVLK_STR-INCPO sy-vline 
WA_TXI_TVLK_STR-PARGR sy-vline 
WA_TXI_TVLK_STR-AUFER sy-vline 
WA_TXI_TVLK_STR-DAART sy-vline 
WA_TXI_TVLK_STR-POBED sy-vline 
WA_TXI_TVLK_STR-REGGR sy-vline 
WA_TXI_TVLK_STR-REGLG sy-vline 
WA_TXI_TVLK_STR-WAAUS sy-vline 
WA_TXI_TVLK_STR-ROUTF sy-vline 
WA_TXI_TVLK_STR-VBTYP sy-vline 
WA_TXI_TVLK_STR-TXTGR sy-vline 
WA_TXI_TVLK_STR-ERNAM sy-vline 
WA_TXI_TVLK_STR-KAPPL sy-vline 
WA_TXI_TVLK_STR-KALSM sy-vline 
WA_TXI_TVLK_STR-KSCHL sy-vline 
WA_TXI_TVLK_STR-STGAK sy-vline 
WA_TXI_TVLK_STR-CMGRL sy-vline 
WA_TXI_TVLK_STR-CMGRK sy-vline 
WA_TXI_TVLK_STR-CMGRW sy-vline 
WA_TXI_TVLK_STR-QHERK sy-vline 
WA_TXI_TVLK_STR-TRSPG sy-vline 
WA_TXI_TVLK_STR-TDIIX sy-vline 
WA_TXI_TVLK_STR-PROFIDNETZ sy-vline 
WA_TXI_TVLK_STR-EXCOK sy-vline 
WA_TXI_TVLK_STR-NEUTE sy-vline 
WA_TXI_TVLK_STR-KALSP sy-vline 
WA_TXI_TVLK_STR-FEHGR sy-vline 
WA_TXI_TVLK_STR-LNSPL sy-vline 
WA_TXI_TVLK_STR-AVERP sy-vline 
WA_TXI_TVLK_STR-PM_ITEM_GEN sy-vline 
WA_TXI_TVLK_STR-REGTB sy-vline 
WA_TXI_TVLK_STR-BZOPS sy-vline 
WA_TXI_TVLK_STR-EXCBC sy-vline 
WA_TXI_TVLK_STR-EXCEM sy-vline 
WA_TXI_TVLK_STR-EXCLG sy-vline 
WA_TXI_TVLK_STR-J_1ADOCCLS sy-vline 
WA_TXI_TVLK_STR-RFPL_SW sy-vline 
WA_TXI_TVLK_STR-TSEGTP sy-vline 
WA_TXI_TVLK_STR-UVEIB sy-vline 
WA_TXI_TVLK_STR-DBTCH sy-vline 
WA_TXI_TVLK_STR-DSFAD sy-vline 
WA_TXI_TVLK_STR-SPOFI sy-vline 
WA_TXI_TVLK_STR-OIDELDCM sy-vline 
WA_TXI_TVLK_STR-SPE_NUMKT sy-vline 
WA_TXI_TVLK_STR-SPE_NR_RECYCLING sy-vline 
WA_TXI_TVLK_STR-BORGR_LIFEX_MUST sy-vline 
WA_TXI_TVLK_STR-BORGR_LIFEX_UNQ sy-vline 
WA_TXI_TVLK_STR-BORGR_LIFEX_EEDI sy-vline 
WA_TXI_TVLK_STR-BORGR_LIFEX_EDIA sy-vline 
WA_TXI_TVLK_STR-BORGR_SODET sy-vline 
WA_TXI_TVLK_STR-HOLD_DATA sy-vline 
WA_TXI_TVLK_STR-TDID sy-vline 
WA_TXI_TVLK_STR-TDSPRAS sy-vline 
WA_TXI_TVLK_STR-EDI_WEIGHTVOL sy-vline 
WA_TXI_TVLK_STR-SPE_ENABLE_VALID sy-vline 
WA_TXI_TVLK_STR-MSR_FKARA sy-vline 
WA_TXI_TVLK_STR-FSH_AUDELOC sy-vline 
WA_TXI_TVLK_STR-FSH_VASS_ACT sy-vline 
WA_TXI_TVLK_STR-FSH_VASS_KALSM sy-vline 
WA_TXI_TVLK_STR-FSH_VASS_CORR sy-vline 
WA_TXI_TVLK_STR-RESTORE_ALLOC sy-vline 
WA_TXI_TVLK_STR-ITMAC sy-vline 
WA_TXI_TVLK_STR-SGT_IGNORE_SEG sy-vline 
WA_TXI_TVLK_STR-RFM_BOM_CORR sy-vline 
WA_TXI_TVLK_STR-RFM_VAS_QTY_CORR sy-vline 
WA_TXI_TVLK_STR-RFM_MAIN_ITEM_CORR sy-vline 
WA_TXI_TVLK_STR-FLEXNUM_ROUTINE_NO sy-vline 
WA_TXI_TVLK_STR-INT_TOCD_OFFSET sy-vline 
WA_TXI_TVLK_STR-INT_TOCD_OFFSET_UNIT sy-vline 
WA_TXI_TVLK_STR-EXT_TOCD_OFFSET sy-vline 
WA_TXI_TVLK_STR-EXT_TOCD_OFFSET_UNIT sy-vline 
WA_TXI_TVLK_STR-RFM_VAS_PLANT_CHECK sy-vline      INTO ld_text SEPARATED BY SPACE.

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