ABAP Select data from SAP table WRF_PRC_EM_EXP_DATES_STY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WRF_PRC_EM_EXP_DATES_STY
*  INTO TABLE @DATA(IT_WRF_PRC_EM_EXP_DATES_STY2).
*--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_WRF_PRC_EM_EXP_DATES_STY INDEX 1 INTO DATA(WA_WRF_PRC_EM_EXP_DATES_STY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WRF_PRC_EM_EXP_DATES_STY>-EH_GUID = 1.
<WRF_PRC_EM_EXP_DATES_STY>-SEQ_NBR = 1.
<WRF_PRC_EM_EXP_DATES_STY>-MILESTONENUM = 1.
<WRF_PRC_EM_EXP_DATES_STY>-EVENT_STATUS = 1.
<WRF_PRC_EM_EXP_DATES_STY>-MSG_STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WRF_PRC_EM_EXP_DATES_STY-MSG_EXP_DATE, sy-vline,
  WA_WRF_PRC_EM_EXP_DATES_STY-EARLIEST_MSG_DTE, sy-vline,
  WA_WRF_PRC_EM_EXP_DATES_STY-LATEST_MSG_DATE, sy-vline,
  WA_WRF_PRC_EM_EXP_DATES_STY-MSG_RCVD_DATE, sy-vline,
  WA_WRF_PRC_EM_EXP_DATES_STY-MSG_DATE_UTC, sy-vline,
  WA_WRF_PRC_EM_EXP_DATES_STY-MSG_EXP_TZONE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WRF_PRC_EM_EXP_DATES_STY 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_WRF_PRC_EM_EXP_DATES_STY 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_WRF_PRC_EM_EXP_DATES_STY INTO WA_WRF_PRC_EM_EXP_DATES_STY.


*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 TSTPS, internal->external for field MSG_EXP_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-MSG_EXP_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-MSG_EXP_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field EARLIEST_MSG_DTE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-EARLIEST_MSG_DTE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-EARLIEST_MSG_DTE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field LATEST_MSG_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-LATEST_MSG_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-LATEST_MSG_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field MSG_RCVD_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-MSG_RCVD_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-MSG_RCVD_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field MSG_DATE_UTC
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-MSG_DATE_UTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-MSG_DATE_UTC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field EARLIEST_EV_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-EARLIEST_EV_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-EARLIEST_EV_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field EVENT_EXP_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-EVENT_EXP_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-EVENT_EXP_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field LATEST_EV_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-LATEST_EV_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-LATEST_EV_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field EVENT_DATE
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-EVENT_DATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-EVENT_DATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field EVENT_DATE_UTC
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_WRF_PRC_EM_EXP_DATES_STY-EVENT_DATE_UTC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WRF_PRC_EM_EXP_DATES_STY-EVENT_DATE_UTC.
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_WRF_PRC_EM_EXP_DATES_STY_STR, 
EH_GUID TYPE STRING,
SEQ_NBR TYPE STRING,
MILESTONENUM TYPE STRING,
EVENT_STATUS TYPE STRING,
MSG_STATUS TYPE STRING,
MSG_EXP_DATE TYPE STRING,
EARLIEST_MSG_DTE TYPE STRING,
LATEST_MSG_DATE TYPE STRING,
MSG_RCVD_DATE TYPE STRING,
MSG_DATE_UTC TYPE STRING,
MSG_EXP_TZONE TYPE STRING,
MSG_RCVD_TZONE TYPE STRING,
DATE_ID TYPE STRING,
DATE_TYPE TYPE STRING,
EARLIEST_EV_DATE TYPE STRING,
EVENT_EXP_DATE TYPE STRING,
LATEST_EV_DATE TYPE STRING,
EVENT_DATE TYPE STRING,
EVENT_DATE_UTC TYPE STRING,
EVENT_EXP_TZONE TYPE STRING,
EVENT_TZONE TYPE STRING,
MSG_EXP_INDEX TYPE STRING,
EVENT_EXP_INDEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WRF_PRC_EM_EXP_DATES_STY_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_WRF_PRC_EM_EXP_DATES_STY_STR-EH_GUID sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-SEQ_NBR sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MILESTONENUM sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EVENT_STATUS sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MSG_STATUS sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MSG_EXP_DATE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EARLIEST_MSG_DTE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-LATEST_MSG_DATE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MSG_RCVD_DATE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MSG_DATE_UTC sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MSG_EXP_TZONE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MSG_RCVD_TZONE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-DATE_ID sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-DATE_TYPE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EARLIEST_EV_DATE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EVENT_EXP_DATE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-LATEST_EV_DATE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EVENT_DATE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EVENT_DATE_UTC sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EVENT_EXP_TZONE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EVENT_TZONE sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-MSG_EXP_INDEX sy-vline 
WA_WRF_PRC_EM_EXP_DATES_STY_STR-EVENT_EXP_INDEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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