ABAP Select data from SAP table PTM_2003_CMP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTM_2003_CMP 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 PTM_2003_CMP. 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 PTM_2003_CMP 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_PTM_2003_CMP TYPE STANDARD TABLE OF PTM_2003_CMP,
      WA_PTM_2003_CMP TYPE PTM_2003_CMP,
      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: <PTM_2003_CMP> TYPE PTM_2003_CMP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTM_2003_CMP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTM_2003_CMP
  INTO TABLE IT_PTM_2003_CMP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTM_2003_CMP
*  INTO TABLE @DATA(IT_PTM_2003_CMP2).
*--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_PTM_2003_CMP INDEX 1 INTO DATA(WA_PTM_2003_CMP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTM_2003_CMP ASSIGNING <PTM_2003_CMP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTM_2003_CMP>-BEGUZ = 1.
<PTM_2003_CMP>-ENDUZ = 1.
<PTM_2003_CMP>-VTKEN = 1.
<PTM_2003_CMP>-PAMOD = 1.
<PTM_2003_CMP>-PBEG1 = 1.

ENDLOOP.

LOOP AT IT_PTM_2003_CMP INTO WA_PTM_2003_CMP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTM_2003_CMP-PEND1, sy-vline,
  WA_PTM_2003_CMP-PBEZ1, sy-vline,
  WA_PTM_2003_CMP-PUNB1, sy-vline,
  WA_PTM_2003_CMP-PBEG2, sy-vline,
  WA_PTM_2003_CMP-PEND2, sy-vline,
  WA_PTM_2003_CMP-PBEZ2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTM_2003_CMP 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_PTM_2003_CMP 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_PTM_2003_CMP INTO WA_PTM_2003_CMP.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PTM_2003_CMP_STR, 
BEGUZ TYPE STRING,
ENDUZ TYPE STRING,
VTKEN TYPE STRING,
PAMOD TYPE STRING,
PBEG1 TYPE STRING,
PEND1 TYPE STRING,
PBEZ1 TYPE STRING,
PUNB1 TYPE STRING,
PBEG2 TYPE STRING,
PEND2 TYPE STRING,
PBEZ2 TYPE STRING,
PUNB2 TYPE STRING,
ZEITY TYPE STRING,
MOFID TYPE STRING,
MOSID TYPE STRING,
SCHKZ TYPE STRING,
TPROG TYPE STRING,
VARIA TYPE STRING,
TAGTY TYPE STRING,
TPKLA TYPE STRING,
VPERN TYPE STRING,
PLANS TYPE STRING,
NXDFL TYPE STRING,
BEGPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTM_2003_CMP_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_PTM_2003_CMP_STR-BEGUZ sy-vline 
WA_PTM_2003_CMP_STR-ENDUZ sy-vline 
WA_PTM_2003_CMP_STR-VTKEN sy-vline 
WA_PTM_2003_CMP_STR-PAMOD sy-vline 
WA_PTM_2003_CMP_STR-PBEG1 sy-vline 
WA_PTM_2003_CMP_STR-PEND1 sy-vline 
WA_PTM_2003_CMP_STR-PBEZ1 sy-vline 
WA_PTM_2003_CMP_STR-PUNB1 sy-vline 
WA_PTM_2003_CMP_STR-PBEG2 sy-vline 
WA_PTM_2003_CMP_STR-PEND2 sy-vline 
WA_PTM_2003_CMP_STR-PBEZ2 sy-vline 
WA_PTM_2003_CMP_STR-PUNB2 sy-vline 
WA_PTM_2003_CMP_STR-ZEITY sy-vline 
WA_PTM_2003_CMP_STR-MOFID sy-vline 
WA_PTM_2003_CMP_STR-MOSID sy-vline 
WA_PTM_2003_CMP_STR-SCHKZ sy-vline 
WA_PTM_2003_CMP_STR-TPROG sy-vline 
WA_PTM_2003_CMP_STR-VARIA sy-vline 
WA_PTM_2003_CMP_STR-TAGTY sy-vline 
WA_PTM_2003_CMP_STR-TPKLA sy-vline 
WA_PTM_2003_CMP_STR-VPERN sy-vline 
WA_PTM_2003_CMP_STR-PLANS sy-vline 
WA_PTM_2003_CMP_STR-NXDFL sy-vline 
WA_PTM_2003_CMP_STR-BEGPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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