ABAP Select data from SAP table QEPOINFO into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM QEPOINFO
*  INTO TABLE @DATA(IT_QEPOINFO2).
*--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_QEPOINFO INDEX 1 INTO DATA(WA_QEPOINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<QEPOINFO>-APLFL = 1.
<QEPOINFO>-VORGLFNR = 1.
<QEPOINFO>-VORNR = 1.
<QEPOINFO>-VORKTXT = 1.
<QEPOINFO>-PRPLATZTXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_QEPOINFO-QKZPRMENG, sy-vline,
  WA_QEPOINFO-QKZPRZEIT, sy-vline,
  WA_QEPOINFO-QKZPRFREI, sy-vline,
  WA_QEPOINFO-QRASTEREH, sy-vline,
  WA_QEPOINFO-QRASTMENG, sy-vline,
  WA_QEPOINFO-QRASTZEHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_QEPOINFO 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_QEPOINFO 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_QEPOINFO INTO WA_QEPOINFO.


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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_QEPOINFO-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QEPOINFO-VORNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field QRASTZEHT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_QEPOINFO-QRASTZEHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_QEPOINFO-QRASTZEHT.
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_QEPOINFO_STR, 
APLFL TYPE STRING,
VORGLFNR TYPE STRING,
VORNR TYPE STRING,
VORKTXT TYPE STRING,
PRPLATZTXT TYPE STRING,
QKZPRMENG TYPE STRING,
QKZPRZEIT TYPE STRING,
QKZPRFREI TYPE STRING,
QRASTEREH TYPE STRING,
QRASTMENG TYPE STRING,
QRASTZEHT TYPE STRING,
QRASTZFAK TYPE STRING,
VBEWERTUNG TYPE STRING,
ADD_FIELDS_OPR TYPE STRING,
VORSTEUS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_QEPOINFO_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_QEPOINFO_STR-APLFL sy-vline 
WA_QEPOINFO_STR-VORGLFNR sy-vline 
WA_QEPOINFO_STR-VORNR sy-vline 
WA_QEPOINFO_STR-VORKTXT sy-vline 
WA_QEPOINFO_STR-PRPLATZTXT sy-vline 
WA_QEPOINFO_STR-QKZPRMENG sy-vline 
WA_QEPOINFO_STR-QKZPRZEIT sy-vline 
WA_QEPOINFO_STR-QKZPRFREI sy-vline 
WA_QEPOINFO_STR-QRASTEREH sy-vline 
WA_QEPOINFO_STR-QRASTMENG sy-vline 
WA_QEPOINFO_STR-QRASTZEHT sy-vline 
WA_QEPOINFO_STR-QRASTZFAK sy-vline 
WA_QEPOINFO_STR-VBEWERTUNG sy-vline 
WA_QEPOINFO_STR-ADD_FIELDS_OPR sy-vline 
WA_QEPOINFO_STR-VORSTEUS sy-vline      INTO ld_text SEPARATED BY SPACE.

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