ABAP Select data from SAP table /SCWM/S_LM_EWL_CONTEXT_PI into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCWM/S_LM_EWL_CONTEXT_PI 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 /SCWM/S_LM_EWL_CONTEXT_PI. 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 /SCWM/S_LM_EWL_CONTEXT_PI 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_/SCWM/S_LM_EWL_CONTEXT_PI TYPE STANDARD TABLE OF /SCWM/S_LM_EWL_CONTEXT_PI,
      WA_/SCWM/S_LM_EWL_CONTEXT_PI TYPE /SCWM/S_LM_EWL_CONTEXT_PI,
      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: </SCWM/S_LM_EWL_CONTEXT_PI> TYPE /SCWM/S_LM_EWL_CONTEXT_PI.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCWM/S_LM_EWL_CONTEXT_PI
  INTO TABLE IT_/SCWM/S_LM_EWL_CONTEXT_PI.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_LM_EWL_CONTEXT_PI
*  INTO TABLE @DATA(IT_/SCWM/S_LM_EWL_CONTEXT_PI2).
*--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_/SCWM/S_LM_EWL_CONTEXT_PI INDEX 1 INTO DATA(WA_/SCWM/S_LM_EWL_CONTEXT_PI2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCWM/S_LM_EWL_CONTEXT_PI ASSIGNING </SCWM/S_LM_EWL_CONTEXT_PI>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_LM_EWL_CONTEXT_PI>-S_WO = 1.
</SCWM/S_LM_EWL_CONTEXT_PI>-MANDT = 1.
</SCWM/S_LM_EWL_CONTEXT_PI>-LGNUM = 1.
</SCWM/S_LM_EWL_CONTEXT_PI>-WHO = 1.
</SCWM/S_LM_EWL_CONTEXT_PI>-WCR = 1.

ENDLOOP.

LOOP AT IT_/SCWM/S_LM_EWL_CONTEXT_PI INTO WA_/SCWM/S_LM_EWL_CONTEXT_PI.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_LM_EWL_CONTEXT_PI-TYPE, sy-vline,
  WA_/SCWM/S_LM_EWL_CONTEXT_PI-HDR_PROCTY, sy-vline,
  WA_/SCWM/S_LM_EWL_CONTEXT_PI-WAVE, sy-vline,
  WA_/SCWM/S_LM_EWL_CONTEXT_PI-STATUS, sy-vline,
  WA_/SCWM/S_LM_EWL_CONTEXT_PI-AREAWHO, sy-vline,
  WA_/SCWM/S_LM_EWL_CONTEXT_PI-LGTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_LM_EWL_CONTEXT_PI 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_/SCWM/S_LM_EWL_CONTEXT_PI 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_/SCWM/S_LM_EWL_CONTEXT_PI INTO WA_/SCWM/S_LM_EWL_CONTEXT_PI.


*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 ALPH0, internal->external for field WHO
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-WHO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-WHO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field WAVE
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-WAVE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-WAVE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field CREATED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-CREATED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-CREATED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field STARTED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-STARTED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-STARTED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field CONFIRMED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-CONFIRMED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-CONFIRMED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PROCR, internal->external for field PROCESSOR
CALL FUNCTION 'CONVERSION_EXIT_PROCR_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-PROCESSOR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-PROCESSOR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field SPLITWHOID
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-SPLITWHOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-SPLITWHOID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTWH, internal->external for field LSD
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-LSD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-LSD.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit TSTWH, internal->external for field CHANGED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTWH_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-CHANGED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-CHANGED_AT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field TOPWHOID
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-TOPWHOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-TOPWHOID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field REFWHOID
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-REFWHOID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-REFWHOID.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit TSTPS, internal->external for field CHANGED_AT_WH
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_LM_EWL_CONTEXT_PI-CHANGED_AT_WH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_LM_EWL_CONTEXT_PI-CHANGED_AT_WH.
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_/SCWM/S_LM_EWL_CONTEXT_PI_STR, 
S_WO TYPE STRING,
MANDT TYPE STRING,
LGNUM TYPE STRING,
WHO TYPE STRING,
WCR TYPE STRING,
TYPE TYPE STRING,
HDR_PROCTY TYPE STRING,
WAVE TYPE STRING,
STATUS TYPE STRING,
AREAWHO TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
CREATED_AT TYPE STRING,
CREATED_BY TYPE STRING,
QUEUE TYPE STRING,
STARTED_AT TYPE STRING,
START_FIXED TYPE STRING,
CONFIRMED_AT TYPE STRING,
CONFIRMED_BY TYPE STRING,
PROCESSOR TYPE STRING,
RSRC TYPE STRING,
MAN_ASSIGN TYPE STRING,
FLGINV TYPE STRING,
SPLITWHOID TYPE STRING,
FLGSPLIT TYPE STRING,
START_BIN TYPE STRING,
LSD TYPE STRING,
WHO_DUMMY TYPE STRING,
PLANDURA TYPE STRING,
UNIT_T TYPE STRING,
CHANGED_AT TYPE STRING,
CHANGED_BY TYPE STRING,
TOPWHOID TYPE STRING,
REFWHOID TYPE STRING,
FLGWHO TYPE STRING,
FLGTO TYPE STRING,
WHOLOGNO TYPE STRING,
HAZMAT TYPE STRING,
WHOID TYPE STRING,
CREATED_AT_WH TYPE STRING,
STARTED_AT_WH TYPE STRING,
LSD_WH TYPE STRING,
CONFIRMED_AT_WH TYPE STRING,
CHANGED_AT_WH TYPE STRING,
UPDKZ TYPE STRING,
DB_LOCK TYPE STRING,
T_ITEM TYPE STRING,
S_EEW_CTX_PI TYPE STRING,
DUMMY_EWL_CTX_PI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_LM_EWL_CONTEXT_PI_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_/SCWM/S_LM_EWL_CONTEXT_PI_STR-S_WO sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-MANDT sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-LGNUM sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-WHO sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-WCR sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-TYPE sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-HDR_PROCTY sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-WAVE sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-STATUS sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-AREAWHO sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-LGTYP sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-LGPLA sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CREATED_AT sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CREATED_BY sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-QUEUE sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-STARTED_AT sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-START_FIXED sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CONFIRMED_AT sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CONFIRMED_BY sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-PROCESSOR sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-RSRC sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-MAN_ASSIGN sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-FLGINV sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-SPLITWHOID sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-FLGSPLIT sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-START_BIN sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-LSD sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-WHO_DUMMY sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-PLANDURA sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-UNIT_T sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CHANGED_AT sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CHANGED_BY sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-TOPWHOID sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-REFWHOID sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-FLGWHO sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-FLGTO sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-WHOLOGNO sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-HAZMAT sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-WHOID sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CREATED_AT_WH sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-STARTED_AT_WH sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-LSD_WH sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CONFIRMED_AT_WH sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-CHANGED_AT_WH sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-UPDKZ sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-DB_LOCK sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-T_ITEM sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-S_EEW_CTX_PI sy-vline 
WA_/SCWM/S_LM_EWL_CONTEXT_PI_STR-DUMMY_EWL_CTX_PI sy-vline      INTO ld_text SEPARATED BY SPACE.

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