ABAP Select data from SAP table WB2_EKES 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 WB2_EKES 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 WB2_EKES. 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 WB2_EKES 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_WB2_EKES TYPE STANDARD TABLE OF WB2_EKES,
      WA_WB2_EKES TYPE WB2_EKES,
      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: <WB2_EKES> TYPE WB2_EKES.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WB2_EKES.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WB2_EKES
  INTO TABLE IT_WB2_EKES.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WB2_EKES
*  INTO TABLE @DATA(IT_WB2_EKES2).
*--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_WB2_EKES INDEX 1 INTO DATA(WA_WB2_EKES2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WB2_EKES ASSIGNING <WB2_EKES>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WB2_EKES>-MANDT = 1.
<WB2_EKES>-EBELN = 1.
<WB2_EKES>-EBELP = 1.
<WB2_EKES>-ETENS = 1.
<WB2_EKES>-EBTYP = 1.

ENDLOOP.

LOOP AT IT_WB2_EKES INTO WA_WB2_EKES.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WB2_EKES-EINDT, sy-vline,
  WA_WB2_EKES-LPEIN, sy-vline,
  WA_WB2_EKES-UZEIT, sy-vline,
  WA_WB2_EKES-ERDAT, sy-vline,
  WA_WB2_EKES-EZEIT, sy-vline,
  WA_WB2_EKES-MENGE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WB2_EKES 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_WB2_EKES 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_WB2_EKES INTO WA_WB2_EKES.


*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 EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_EKES-EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_EKES-EBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_EKES-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_EKES-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field EMATN
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_WB2_EKES-EMATN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_EKES-EMATN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN_ST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_EKES-VBELN_ST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_EKES-VBELN_ST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SERVICEPERFORMER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_EKES-SERVICEPERFORMER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_EKES-SERVICEPERFORMER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER_CONF_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2_EKES-SUPPLIER_CONF_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2_EKES-SUPPLIER_CONF_NO.
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_WB2_EKES_STR, 
MANDT TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ETENS TYPE STRING,
EBTYP TYPE STRING,
EINDT TYPE STRING,
LPEIN TYPE STRING,
UZEIT TYPE STRING,
ERDAT TYPE STRING,
EZEIT TYPE STRING,
MENGE TYPE STRING,
DABMG TYPE STRING,
ESTKZ TYPE STRING,
LOEKZ TYPE STRING,
KZDIS TYPE STRING,
XBLNR TYPE STRING,
VBELN TYPE STRING,
VBELP TYPE STRING,
MPROF TYPE STRING,
EMATN TYPE STRING,
MAHNZ TYPE STRING,
CHARG TYPE STRING,
UECHA TYPE STRING,
REF_ETENS TYPE STRING,
IMWRK TYPE STRING,
VBELN_ST TYPE STRING,
VBELP_ST TYPE STRING,
HANDOVERDATE TYPE STRING,
HANDOVERTIME TYPE STRING,
SGT_SCAT TYPE STRING,
MSGTSTMP TYPE STRING,
/CWM/MENGE TYPE STRING,
/CWM/DABMG TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
SERVICEPERFORMER TYPE STRING,
EXPECTED_VALUE TYPE STRING,
SUPPLIER_CONF_NO TYPE STRING,
SUPPLIER_CONF_ITEM TYPE STRING,
_DATAAGING TYPE STRING,
FSH_SALLOC_QTY TYPE STRING,
ORMNG TYPE STRING,
TMS_REF_UUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WB2_EKES_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_WB2_EKES_STR-MANDT sy-vline 
WA_WB2_EKES_STR-EBELN sy-vline 
WA_WB2_EKES_STR-EBELP sy-vline 
WA_WB2_EKES_STR-ETENS sy-vline 
WA_WB2_EKES_STR-EBTYP sy-vline 
WA_WB2_EKES_STR-EINDT sy-vline 
WA_WB2_EKES_STR-LPEIN sy-vline 
WA_WB2_EKES_STR-UZEIT sy-vline 
WA_WB2_EKES_STR-ERDAT sy-vline 
WA_WB2_EKES_STR-EZEIT sy-vline 
WA_WB2_EKES_STR-MENGE sy-vline 
WA_WB2_EKES_STR-DABMG sy-vline 
WA_WB2_EKES_STR-ESTKZ sy-vline 
WA_WB2_EKES_STR-LOEKZ sy-vline 
WA_WB2_EKES_STR-KZDIS sy-vline 
WA_WB2_EKES_STR-XBLNR sy-vline 
WA_WB2_EKES_STR-VBELN sy-vline 
WA_WB2_EKES_STR-VBELP sy-vline 
WA_WB2_EKES_STR-MPROF sy-vline 
WA_WB2_EKES_STR-EMATN sy-vline 
WA_WB2_EKES_STR-MAHNZ sy-vline 
WA_WB2_EKES_STR-CHARG sy-vline 
WA_WB2_EKES_STR-UECHA sy-vline 
WA_WB2_EKES_STR-REF_ETENS sy-vline 
WA_WB2_EKES_STR-IMWRK sy-vline 
WA_WB2_EKES_STR-VBELN_ST sy-vline 
WA_WB2_EKES_STR-VBELP_ST sy-vline 
WA_WB2_EKES_STR-HANDOVERDATE sy-vline 
WA_WB2_EKES_STR-HANDOVERTIME sy-vline 
WA_WB2_EKES_STR-SGT_SCAT sy-vline 
WA_WB2_EKES_STR-MSGTSTMP sy-vline 
WA_WB2_EKES_STR-/CWM/MENGE sy-vline 
WA_WB2_EKES_STR-/CWM/DABMG sy-vline 
WA_WB2_EKES_STR-STARTDATE sy-vline 
WA_WB2_EKES_STR-ENDDATE sy-vline 
WA_WB2_EKES_STR-SERVICEPERFORMER sy-vline 
WA_WB2_EKES_STR-EXPECTED_VALUE sy-vline 
WA_WB2_EKES_STR-SUPPLIER_CONF_NO sy-vline 
WA_WB2_EKES_STR-SUPPLIER_CONF_ITEM sy-vline 
WA_WB2_EKES_STR-_DATAAGING sy-vline 
WA_WB2_EKES_STR-FSH_SALLOC_QTY sy-vline 
WA_WB2_EKES_STR-ORMNG sy-vline 
WA_WB2_EKES_STR-TMS_REF_UUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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