ABAP Select data from SAP table MEPOSCHEDULE_DATAX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MEPOSCHEDULE_DATAX
*  INTO TABLE @DATA(IT_MEPOSCHEDULE_DATAX2).
*--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_MEPOSCHEDULE_DATAX INDEX 1 INTO DATA(WA_MEPOSCHEDULE_DATAX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MEPOSCHEDULE_DATAX>-EBELN = 1.
<MEPOSCHEDULE_DATAX>-EBELP = 1.
<MEPOSCHEDULE_DATAX>-ETENR = 1.
<MEPOSCHEDULE_DATAX>-LPEIN = 1.
<MEPOSCHEDULE_DATAX>-EINDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MEPOSCHEDULE_DATAX-ELPEI, sy-vline,
  WA_MEPOSCHEDULE_DATAX-EEIND, sy-vline,
  WA_MEPOSCHEDULE_DATAX-MENGE, sy-vline,
  WA_MEPOSCHEDULE_DATAX-UZEIT, sy-vline,
  WA_MEPOSCHEDULE_DATAX-SLFDT, sy-vline,
  WA_MEPOSCHEDULE_DATAX-BANFN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MEPOSCHEDULE_DATAX 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_MEPOSCHEDULE_DATAX 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_MEPOSCHEDULE_DATAX INTO WA_MEPOSCHEDULE_DATAX.


*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_MEPOSCHEDULE_DATAX_STR, 
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_MEPOSCHEDULE_DATAX_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_MEPOSCHEDULE_DATAX_STR-EBELN sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-EBELP sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-ETENR sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-LPEIN sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-EINDT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-ELPEI sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-EEIND sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-MENGE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-UZEIT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-SLFDT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-BANFN sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-BNFPO sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-BEDAT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-MNG02 sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-DAT01 sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-AULWE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-MBDAT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-MBUHR sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-LDDAT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-LDUHR sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-TDDAT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-TDUHR sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-WADAT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-WAUHR sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-ELDAT sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-ELUHR sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-LOEKZ sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-EBAKZ sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-GEO_ROUTE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-ROUTE_GTS sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-GTS_IND sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-TSP sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-CD_LOCNO sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-CD_LOCTYPE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-HANDOVERDATE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-HANDOVERTIME sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-STARTDATE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-ENDDATE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-DUMMY sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-KEY_ID sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-OTB_VALUE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-OTB_CURR sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-OTB_RES_VALUE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-OTB_SPEC_VALUE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-SPR_RSN_PROFILE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-BUDG_TYPE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-OTB_STATUS sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-OTB_REASON sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-CHECK_TYPE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-DL_ID sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-HANDOVER_DATE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-NO_SCEM sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-DNG_DATE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-DNG_TIME sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-CNCL_ANCMNT_DONE sy-vline 
WA_MEPOSCHEDULE_DATAX_STR-DATESHIFT_NUMBER sy-vline 
WA_MEPOSCHEDULE_DATAX_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.