ABAP Select data from SAP table QGEVAL_PARTIALLOT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QGEVAL_PARTIALLOT
*  INTO TABLE @DATA(IT_QGEVAL_PARTIALLOT2).
*--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_QGEVAL_PARTIALLOT INDEX 1 INTO DATA(WA_QGEVAL_PARTIALLOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QGEVAL_PARTIALLOT>-PRUEFLOS = 1.
<QGEVAL_PARTIALLOT>-TEILLOS = 1.
<QGEVAL_PARTIALLOT>-MATNR = 1.
<QGEVAL_PARTIALLOT>-CHARG = 1.
<QGEVAL_PARTIALLOT>-MENGE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QGEVAL_PARTIALLOT-MENGENEINH, sy-vline,
  WA_QGEVAL_PARTIALLOT-ENSTEHDAT, sy-vline,
  WA_QGEVAL_PARTIALLOT-VKATART, sy-vline,
  WA_QGEVAL_PARTIALLOT-VWERKS, sy-vline,
  WA_QGEVAL_PARTIALLOT-VAUSWAHLMG, sy-vline,
  WA_QGEVAL_PARTIALLOT-VCODEGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QGEVAL_PARTIALLOT 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_QGEVAL_PARTIALLOT 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_QGEVAL_PARTIALLOT INTO WA_QGEVAL_PARTIALLOT.


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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_QGEVAL_PARTIALLOT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QGEVAL_PARTIALLOT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MENGENEINH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QGEVAL_PARTIALLOT-MENGENEINH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QGEVAL_PARTIALLOT-MENGENEINH.
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_QGEVAL_PARTIALLOT_STR, 
PRUEFLOS TYPE STRING,
TEILLOS TYPE STRING,
MATNR TYPE STRING,
CHARG TYPE STRING,
MENGE TYPE STRING,
MENGENEINH TYPE STRING,
ENSTEHDAT TYPE STRING,
VKATART TYPE STRING,
VWERKS TYPE STRING,
VAUSWAHLMG TYPE STRING,
VCODEGRP TYPE STRING,
VCODE TYPE STRING,
VBEWERTUNG TYPE STRING,
QKENNZAHL TYPE STRING,
BATCH_HIERARCHY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QGEVAL_PARTIALLOT_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_QGEVAL_PARTIALLOT_STR-PRUEFLOS sy-vline 
WA_QGEVAL_PARTIALLOT_STR-TEILLOS sy-vline 
WA_QGEVAL_PARTIALLOT_STR-MATNR sy-vline 
WA_QGEVAL_PARTIALLOT_STR-CHARG sy-vline 
WA_QGEVAL_PARTIALLOT_STR-MENGE sy-vline 
WA_QGEVAL_PARTIALLOT_STR-MENGENEINH sy-vline 
WA_QGEVAL_PARTIALLOT_STR-ENSTEHDAT sy-vline 
WA_QGEVAL_PARTIALLOT_STR-VKATART sy-vline 
WA_QGEVAL_PARTIALLOT_STR-VWERKS sy-vline 
WA_QGEVAL_PARTIALLOT_STR-VAUSWAHLMG sy-vline 
WA_QGEVAL_PARTIALLOT_STR-VCODEGRP sy-vline 
WA_QGEVAL_PARTIALLOT_STR-VCODE sy-vline 
WA_QGEVAL_PARTIALLOT_STR-VBEWERTUNG sy-vline 
WA_QGEVAL_PARTIALLOT_STR-QKENNZAHL sy-vline 
WA_QGEVAL_PARTIALLOT_STR-BATCH_HIERARCHY sy-vline      INTO ld_text SEPARATED BY SPACE.

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