ABAP Select data from SAP table TPTCOR_CORE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TPTCOR_CORE
*  INTO TABLE @DATA(IT_TPTCOR_CORE2).
*--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_TPTCOR_CORE INDEX 1 INTO DATA(WA_TPTCOR_CORE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TPTCOR_CORE>-MANDT = 1.
<TPTCOR_CORE>-ITEM_ID = 1.
<TPTCOR_CORE>-OPERATION = 1.
<TPTCOR_CORE>-PDSNR = 1.
<TPTCOR_CORE>-PERNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TPTCOR_CORE-LDATE, sy-vline,
  WA_TPTCOR_CORE-LTIME, sy-vline,
  WA_TPTCOR_CORE-ERDAT, sy-vline,
  WA_TPTCOR_CORE-ERTIM, sy-vline,
  WA_TPTCOR_CORE-SATZA, sy-vline,
  WA_TPTCOR_CORE-TERID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TPTCOR_CORE 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_TPTCOR_CORE 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_TPTCOR_CORE INTO WA_TPTCOR_CORE.


*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 DALLF, internal->external for field DALLF
CALL FUNCTION 'CONVERSION_EXIT_DALLF_OUTPUT'
  EXPORTING
    input =                      WA_TPTCOR_CORE-DALLF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TPTCOR_CORE-DALLF.
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_TPTCOR_CORE_STR, 
MANDT TYPE STRING,
ITEM_ID TYPE STRING,
OPERATION TYPE STRING,
PDSNR TYPE STRING,
PERNR TYPE STRING,
LDATE TYPE STRING,
LTIME TYPE STRING,
ERDAT TYPE STRING,
ERTIM TYPE STRING,
SATZA TYPE STRING,
TERID TYPE STRING,
ABWGR TYPE STRING,
ORIGF TYPE STRING,
DALLF TYPE STRING,
ZAUSW TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TPTCOR_CORE_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_TPTCOR_CORE_STR-MANDT sy-vline 
WA_TPTCOR_CORE_STR-ITEM_ID sy-vline 
WA_TPTCOR_CORE_STR-OPERATION sy-vline 
WA_TPTCOR_CORE_STR-PDSNR sy-vline 
WA_TPTCOR_CORE_STR-PERNR sy-vline 
WA_TPTCOR_CORE_STR-LDATE sy-vline 
WA_TPTCOR_CORE_STR-LTIME sy-vline 
WA_TPTCOR_CORE_STR-ERDAT sy-vline 
WA_TPTCOR_CORE_STR-ERTIM sy-vline 
WA_TPTCOR_CORE_STR-SATZA sy-vline 
WA_TPTCOR_CORE_STR-TERID sy-vline 
WA_TPTCOR_CORE_STR-ABWGR sy-vline 
WA_TPTCOR_CORE_STR-ORIGF sy-vline 
WA_TPTCOR_CORE_STR-DALLF sy-vline 
WA_TPTCOR_CORE_STR-ZAUSW sy-vline      INTO ld_text SEPARATED BY SPACE.

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