ABAP Select data from SAP table WB2MEPOSCHEDULEX into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WB2MEPOSCHEDULEX 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 WB2MEPOSCHEDULEX. 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 WB2MEPOSCHEDULEX 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_WB2MEPOSCHEDULEX TYPE STANDARD TABLE OF WB2MEPOSCHEDULEX,
      WA_WB2MEPOSCHEDULEX TYPE WB2MEPOSCHEDULEX,
      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: <WB2MEPOSCHEDULEX> TYPE WB2MEPOSCHEDULEX.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WB2MEPOSCHEDULEX.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WB2MEPOSCHEDULEX
  INTO TABLE IT_WB2MEPOSCHEDULEX.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WB2MEPOSCHEDULEX
*  INTO TABLE @DATA(IT_WB2MEPOSCHEDULEX2).
*--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_WB2MEPOSCHEDULEX INDEX 1 INTO DATA(WA_WB2MEPOSCHEDULEX2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WB2MEPOSCHEDULEX ASSIGNING <WB2MEPOSCHEDULEX>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WB2MEPOSCHEDULEX>-VBELN = 1.
<WB2MEPOSCHEDULEX>-EBELP_KEY = 1.
<WB2MEPOSCHEDULEX>-ETENR_KEY = 1.
<WB2MEPOSCHEDULEX>-SCHEDULE_ID = 1.
<WB2MEPOSCHEDULEX>-EBELN = 1.

ENDLOOP.

LOOP AT IT_WB2MEPOSCHEDULEX INTO WA_WB2MEPOSCHEDULEX.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WB2MEPOSCHEDULEX-EBELP, sy-vline,
  WA_WB2MEPOSCHEDULEX-ETENR, sy-vline,
  WA_WB2MEPOSCHEDULEX-LPEIN, sy-vline,
  WA_WB2MEPOSCHEDULEX-EINDT, sy-vline,
  WA_WB2MEPOSCHEDULEX-ELPEI, sy-vline,
  WA_WB2MEPOSCHEDULEX-EEIND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WB2MEPOSCHEDULEX 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_WB2MEPOSCHEDULEX 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_WB2MEPOSCHEDULEX INTO WA_WB2MEPOSCHEDULEX.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WB2MEPOSCHEDULEX-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WB2MEPOSCHEDULEX-VBELN.
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_WB2MEPOSCHEDULEX_STR, 
VBELN TYPE STRING,
EBELP_KEY TYPE STRING,
ETENR_KEY TYPE STRING,
SCHEDULE_ID TYPE STRING,
EBELN TYPE STRING,
EBELP TYPE STRING,
ETENR TYPE STRING,
LPEIN TYPE STRING,
EINDT TYPE STRING,
ELPEI TYPE STRING,
EEIND TYPE STRING,
MENGE TYPE STRING,
UZEIT TYPE STRING,
SLFDT TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
BEDAT TYPE STRING,
MNG02 TYPE STRING,
DAT01 TYPE STRING,
AULWE TYPE STRING,
MBDAT TYPE STRING,
MBUHR TYPE STRING,
LDDAT TYPE STRING,
LDUHR TYPE STRING,
TDDAT TYPE STRING,
TDUHR TYPE STRING,
WADAT TYPE STRING,
WAUHR TYPE STRING,
ELDAT TYPE STRING,
ELUHR TYPE STRING,
LOEKZ TYPE STRING,
EBAKZ TYPE STRING,
GEO_ROUTE TYPE STRING,
ROUTE_GTS TYPE STRING,
GTS_IND TYPE STRING,
TSP TYPE STRING,
CD_LOCNO TYPE STRING,
CD_LOCTYPE TYPE STRING,
HANDOVERDATE TYPE STRING,
HANDOVERTIME TYPE STRING,
STARTDATE TYPE STRING,
ENDDATE TYPE STRING,
DUMMY TYPE STRING,
KEY_ID TYPE STRING,
OTB_VALUE TYPE STRING,
OTB_CURR TYPE STRING,
OTB_RES_VALUE TYPE STRING,
OTB_SPEC_VALUE TYPE STRING,
SPR_RSN_PROFILE TYPE STRING,
BUDG_TYPE TYPE STRING,
OTB_STATUS TYPE STRING,
OTB_REASON TYPE STRING,
CHECK_TYPE TYPE STRING,
DL_ID TYPE STRING,
HANDOVER_DATE TYPE STRING,
NO_SCEM TYPE STRING,
DNG_DATE TYPE STRING,
DNG_TIME TYPE STRING,
CNCL_ANCMNT_DONE TYPE STRING,
DATESHIFT_NUMBER TYPE STRING,
FSH_OS_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WB2MEPOSCHEDULEX_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_WB2MEPOSCHEDULEX_STR-VBELN sy-vline 
WA_WB2MEPOSCHEDULEX_STR-EBELP_KEY sy-vline 
WA_WB2MEPOSCHEDULEX_STR-ETENR_KEY sy-vline 
WA_WB2MEPOSCHEDULEX_STR-SCHEDULE_ID sy-vline 
WA_WB2MEPOSCHEDULEX_STR-EBELN sy-vline 
WA_WB2MEPOSCHEDULEX_STR-EBELP sy-vline 
WA_WB2MEPOSCHEDULEX_STR-ETENR sy-vline 
WA_WB2MEPOSCHEDULEX_STR-LPEIN sy-vline 
WA_WB2MEPOSCHEDULEX_STR-EINDT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-ELPEI sy-vline 
WA_WB2MEPOSCHEDULEX_STR-EEIND sy-vline 
WA_WB2MEPOSCHEDULEX_STR-MENGE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-UZEIT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-SLFDT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-BANFN sy-vline 
WA_WB2MEPOSCHEDULEX_STR-BNFPO sy-vline 
WA_WB2MEPOSCHEDULEX_STR-BEDAT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-MNG02 sy-vline 
WA_WB2MEPOSCHEDULEX_STR-DAT01 sy-vline 
WA_WB2MEPOSCHEDULEX_STR-AULWE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-MBDAT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-MBUHR sy-vline 
WA_WB2MEPOSCHEDULEX_STR-LDDAT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-LDUHR sy-vline 
WA_WB2MEPOSCHEDULEX_STR-TDDAT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-TDUHR sy-vline 
WA_WB2MEPOSCHEDULEX_STR-WADAT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-WAUHR sy-vline 
WA_WB2MEPOSCHEDULEX_STR-ELDAT sy-vline 
WA_WB2MEPOSCHEDULEX_STR-ELUHR sy-vline 
WA_WB2MEPOSCHEDULEX_STR-LOEKZ sy-vline 
WA_WB2MEPOSCHEDULEX_STR-EBAKZ sy-vline 
WA_WB2MEPOSCHEDULEX_STR-GEO_ROUTE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-ROUTE_GTS sy-vline 
WA_WB2MEPOSCHEDULEX_STR-GTS_IND sy-vline 
WA_WB2MEPOSCHEDULEX_STR-TSP sy-vline 
WA_WB2MEPOSCHEDULEX_STR-CD_LOCNO sy-vline 
WA_WB2MEPOSCHEDULEX_STR-CD_LOCTYPE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-HANDOVERDATE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-HANDOVERTIME sy-vline 
WA_WB2MEPOSCHEDULEX_STR-STARTDATE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-ENDDATE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-DUMMY sy-vline 
WA_WB2MEPOSCHEDULEX_STR-KEY_ID sy-vline 
WA_WB2MEPOSCHEDULEX_STR-OTB_VALUE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-OTB_CURR sy-vline 
WA_WB2MEPOSCHEDULEX_STR-OTB_RES_VALUE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-OTB_SPEC_VALUE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-SPR_RSN_PROFILE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-BUDG_TYPE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-OTB_STATUS sy-vline 
WA_WB2MEPOSCHEDULEX_STR-OTB_REASON sy-vline 
WA_WB2MEPOSCHEDULEX_STR-CHECK_TYPE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-DL_ID sy-vline 
WA_WB2MEPOSCHEDULEX_STR-HANDOVER_DATE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-NO_SCEM sy-vline 
WA_WB2MEPOSCHEDULEX_STR-DNG_DATE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-DNG_TIME sy-vline 
WA_WB2MEPOSCHEDULEX_STR-CNCL_ANCMNT_DONE sy-vline 
WA_WB2MEPOSCHEDULEX_STR-DATESHIFT_NUMBER sy-vline 
WA_WB2MEPOSCHEDULEX_STR-FSH_OS_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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