ABAP Select data from SAP table TXPDAT 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 TXPDAT 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 TXPDAT. 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 TXPDAT 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_TXPDAT TYPE STANDARD TABLE OF TXPDAT,
      WA_TXPDAT TYPE TXPDAT,
      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: <TXPDAT> TYPE TXPDAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXPDAT
*  INTO TABLE @DATA(IT_TXPDAT2).
*--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_TXPDAT INDEX 1 INTO DATA(WA_TXPDAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXPDAT>-MANDT = 1.
<TXPDAT>-EXPOBJ = 1.
<TXPDAT>-IDENT = 1.
<TXPDAT>-NMRID = 1.
<TXPDAT>-EVENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXPDAT-DTEXT, sy-vline,
  WA_TXPDAT-STDEV, sy-vline,
  WA_TXPDAT-XBASELINE, sy-vline,
  WA_TXPDAT-BASEFIX, sy-vline,
  WA_TXPDAT-XCURRENT, sy-vline,
  WA_TXPDAT-CURRFIX, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXPDAT 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_TXPDAT 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_TXPDAT INTO WA_TXPDAT.


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

*Conversion exit ALPHA, internal->external for field EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TXPDAT-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXPDAT-EBELN.
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_TXPDAT_STR, 
MANDT TYPE STRING,
EXPOBJ TYPE STRING,
IDENT TYPE STRING,
NMRID TYPE STRING,
EVENT TYPE STRING,
DTEXT TYPE STRING,
STDEV TYPE STRING,
XBASELINE TYPE STRING,
BASEFIX TYPE STRING,
XCURRENT TYPE STRING,
CURRFIX TYPE STRING,
XFORECAST TYPE STRING,
FORCFIX TYPE STRING,
XACTUAL TYPE STRING,
PERC_COMPL TYPE STRING,
XSCHDSC TYPE STRING,
EXP_PRIO TYPE STRING,
INSP_LOT TYPE STRING,
REMARK TYPE STRING,
EBELN TYPE STRING,
SEQUENCE TYPE STRING,
RSNUM TYPE STRING,
ERNAM TYPE STRING,
ERDAT TYPE STRING,
ERUZT TYPE STRING,
AENAM TYPE STRING,
AEDAT TYPE STRING,
AEUZT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXPDAT_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_TXPDAT_STR-MANDT sy-vline 
WA_TXPDAT_STR-EXPOBJ sy-vline 
WA_TXPDAT_STR-IDENT sy-vline 
WA_TXPDAT_STR-NMRID sy-vline 
WA_TXPDAT_STR-EVENT sy-vline 
WA_TXPDAT_STR-DTEXT sy-vline 
WA_TXPDAT_STR-STDEV sy-vline 
WA_TXPDAT_STR-XBASELINE sy-vline 
WA_TXPDAT_STR-BASEFIX sy-vline 
WA_TXPDAT_STR-XCURRENT sy-vline 
WA_TXPDAT_STR-CURRFIX sy-vline 
WA_TXPDAT_STR-XFORECAST sy-vline 
WA_TXPDAT_STR-FORCFIX sy-vline 
WA_TXPDAT_STR-XACTUAL sy-vline 
WA_TXPDAT_STR-PERC_COMPL sy-vline 
WA_TXPDAT_STR-XSCHDSC sy-vline 
WA_TXPDAT_STR-EXP_PRIO sy-vline 
WA_TXPDAT_STR-INSP_LOT sy-vline 
WA_TXPDAT_STR-REMARK sy-vline 
WA_TXPDAT_STR-EBELN sy-vline 
WA_TXPDAT_STR-SEQUENCE sy-vline 
WA_TXPDAT_STR-RSNUM sy-vline 
WA_TXPDAT_STR-ERNAM sy-vline 
WA_TXPDAT_STR-ERDAT sy-vline 
WA_TXPDAT_STR-ERUZT sy-vline 
WA_TXPDAT_STR-AENAM sy-vline 
WA_TXPDAT_STR-AEDAT sy-vline 
WA_TXPDAT_STR-AEUZT sy-vline      INTO ld_text SEPARATED BY SPACE.

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