ABAP Select data from SAP table EWAEL_WDPLANT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EWAEL_WDPLANT
*  INTO TABLE @DATA(IT_EWAEL_WDPLANT2).
*--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_EWAEL_WDPLANT INDEX 1 INTO DATA(WA_EWAEL_WDPLANT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EWAEL_WDPLANT>-MANDT = 1.
<EWAEL_WDPLANT>-WDPLANTNR = 1.
<EWAEL_WDPLANT>-WDPLANTTYPE = 1.
<EWAEL_WDPLANT>-ISXENOWDPLANT = 1.
<EWAEL_WDPLANT>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EWAEL_WDPLANT-TPLNR, sy-vline,
  WA_EWAEL_WDPLANT-WERKS, sy-vline,
  WA_EWAEL_WDPLANT-LGORT, sy-vline,
  WA_EWAEL_WDPLANT-LGNUM, sy-vline,
  WA_EWAEL_WDPLANT-PERSA, sy-vline,
  WA_EWAEL_WDPLANT-VKORG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EWAEL_WDPLANT 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_EWAEL_WDPLANT 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_EWAEL_WDPLANT INTO WA_EWAEL_WDPLANT.


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

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

*Conversion exit TPLNR, internal->external for field TPLNR
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPLANT-TPLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPLANT-TPLNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ADDRNUMBER_KR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_EWAEL_WDPLANT-ADDRNUMBER_KR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EWAEL_WDPLANT-ADDRNUMBER_KR.
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_EWAEL_WDPLANT_STR, 
MANDT TYPE STRING,
WDPLANTNR TYPE STRING,
WDPLANTTYPE TYPE STRING,
ISXENOWDPLANT TYPE STRING,
LIFNR TYPE STRING,
TPLNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
LGNUM TYPE STRING,
PERSA TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
KAPNAME TYPE STRING,
KAPART TYPE STRING,
KUNNR TYPE STRING,
DISPOSER_RECN TYPE STRING,
DISPOSER_ACTN TYPE STRING,
WEIGHINGFORM TYPE STRING,
PCKGOODSFORM TYPE STRING,
DESCRIPTION TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
NRO_WNUMBER TYPE STRING,
NRR_WNUMBER TYPE STRING,
WDF_OBJNR TYPE STRING,
HANDLINGTIME TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
BEGRU TYPE STRING,
LOEVM TYPE STRING,
ADDRNUMBER TYPE STRING,
TITLE TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
NAME_TXT TYPE STRING,
CITY1 TYPE STRING,
CITY2 TYPE STRING,
POST_CODE1 TYPE STRING,
COUNTRY TYPE STRING,
STREET TYPE STRING,
HOUSE_NUM1 TYPE STRING,
REGION TYPE STRING,
ADDR_SHORT TYPE STRING,
ADDRNUMBER_DI TYPE STRING,
TITLE_DI TYPE STRING,
NAME1_DI TYPE STRING,
NAME2_DI TYPE STRING,
NAME_TXT_DI TYPE STRING,
CITY1_DI TYPE STRING,
CITY2_DI TYPE STRING,
POST_CODE1_DI TYPE STRING,
COUNTRY_DI TYPE STRING,
STREET_DI TYPE STRING,
HOUSE_NUM1_DI TYPE STRING,
REGION_DI TYPE STRING,
ADDR_SHORT_DI TYPE STRING,
ACTN_DI TYPE STRING,
RECN_DI TYPE STRING,
RECNROOT_DI TYPE STRING,
PARTNER_DI TYPE STRING,
RLTYP_DI TYPE STRING,
ADDRNUMBER_DB TYPE STRING,
TITLE_DB TYPE STRING,
NAME1_DB TYPE STRING,
NAME2_DB TYPE STRING,
NAME_TXT_DB TYPE STRING,
CITY1_DB TYPE STRING,
CITY2_DB TYPE STRING,
POST_CODE1_DB TYPE STRING,
COUNTRY_DB TYPE STRING,
STREET_DB TYPE STRING,
HOUSE_NUM1_DB TYPE STRING,
REGION_DB TYPE STRING,
ADDR_SHORT_DB TYPE STRING,
ADDRNUMBER_KR TYPE STRING,
TITLE_KR TYPE STRING,
NAME1_KR TYPE STRING,
NAME2_KR TYPE STRING,
NAME_TXT_KR TYPE STRING,
CITY1_KR TYPE STRING,
CITY2_KR TYPE STRING,
POST_CODE1_KR TYPE STRING,
COUNTRY_KR TYPE STRING,
STREET_KR TYPE STRING,
HOUSE_NUM1_KR TYPE STRING,
REGION_KR TYPE STRING,
ADDR_SHORT_KR TYPE STRING,
SYMBOL_AC TYPE STRING,
DESCIPTION_AC TYPE STRING,
CUST_ENH_ACTIVE_AC TYPE STRING,
CUST_OVERRIDE_AC TYPE STRING,
ONLY_ACTIVE_AC TYPE STRING,
SHOWALL_WU TYPE STRING,
LAST_REFRESH_WU TYPE STRING,
KEYDATE_WU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EWAEL_WDPLANT_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_EWAEL_WDPLANT_STR-MANDT sy-vline 
WA_EWAEL_WDPLANT_STR-WDPLANTNR sy-vline 
WA_EWAEL_WDPLANT_STR-WDPLANTTYPE sy-vline 
WA_EWAEL_WDPLANT_STR-ISXENOWDPLANT sy-vline 
WA_EWAEL_WDPLANT_STR-LIFNR sy-vline 
WA_EWAEL_WDPLANT_STR-TPLNR sy-vline 
WA_EWAEL_WDPLANT_STR-WERKS sy-vline 
WA_EWAEL_WDPLANT_STR-LGORT sy-vline 
WA_EWAEL_WDPLANT_STR-LGNUM sy-vline 
WA_EWAEL_WDPLANT_STR-PERSA sy-vline 
WA_EWAEL_WDPLANT_STR-VKORG sy-vline 
WA_EWAEL_WDPLANT_STR-VTWEG sy-vline 
WA_EWAEL_WDPLANT_STR-SPART sy-vline 
WA_EWAEL_WDPLANT_STR-KAPNAME sy-vline 
WA_EWAEL_WDPLANT_STR-KAPART sy-vline 
WA_EWAEL_WDPLANT_STR-KUNNR sy-vline 
WA_EWAEL_WDPLANT_STR-DISPOSER_RECN sy-vline 
WA_EWAEL_WDPLANT_STR-DISPOSER_ACTN sy-vline 
WA_EWAEL_WDPLANT_STR-WEIGHINGFORM sy-vline 
WA_EWAEL_WDPLANT_STR-PCKGOODSFORM sy-vline 
WA_EWAEL_WDPLANT_STR-DESCRIPTION sy-vline 
WA_EWAEL_WDPLANT_STR-EKORG sy-vline 
WA_EWAEL_WDPLANT_STR-EKGRP sy-vline 
WA_EWAEL_WDPLANT_STR-NRO_WNUMBER sy-vline 
WA_EWAEL_WDPLANT_STR-NRR_WNUMBER sy-vline 
WA_EWAEL_WDPLANT_STR-WDF_OBJNR sy-vline 
WA_EWAEL_WDPLANT_STR-HANDLINGTIME sy-vline 
WA_EWAEL_WDPLANT_STR-ERDAT sy-vline 
WA_EWAEL_WDPLANT_STR-ERNAM sy-vline 
WA_EWAEL_WDPLANT_STR-AEDAT sy-vline 
WA_EWAEL_WDPLANT_STR-AENAM sy-vline 
WA_EWAEL_WDPLANT_STR-BEGRU sy-vline 
WA_EWAEL_WDPLANT_STR-LOEVM sy-vline 
WA_EWAEL_WDPLANT_STR-ADDRNUMBER sy-vline 
WA_EWAEL_WDPLANT_STR-TITLE sy-vline 
WA_EWAEL_WDPLANT_STR-NAME1 sy-vline 
WA_EWAEL_WDPLANT_STR-NAME2 sy-vline 
WA_EWAEL_WDPLANT_STR-NAME_TXT sy-vline 
WA_EWAEL_WDPLANT_STR-CITY1 sy-vline 
WA_EWAEL_WDPLANT_STR-CITY2 sy-vline 
WA_EWAEL_WDPLANT_STR-POST_CODE1 sy-vline 
WA_EWAEL_WDPLANT_STR-COUNTRY sy-vline 
WA_EWAEL_WDPLANT_STR-STREET sy-vline 
WA_EWAEL_WDPLANT_STR-HOUSE_NUM1 sy-vline 
WA_EWAEL_WDPLANT_STR-REGION sy-vline 
WA_EWAEL_WDPLANT_STR-ADDR_SHORT sy-vline 
WA_EWAEL_WDPLANT_STR-ADDRNUMBER_DI sy-vline 
WA_EWAEL_WDPLANT_STR-TITLE_DI sy-vline 
WA_EWAEL_WDPLANT_STR-NAME1_DI sy-vline 
WA_EWAEL_WDPLANT_STR-NAME2_DI sy-vline 
WA_EWAEL_WDPLANT_STR-NAME_TXT_DI sy-vline 
WA_EWAEL_WDPLANT_STR-CITY1_DI sy-vline 
WA_EWAEL_WDPLANT_STR-CITY2_DI sy-vline 
WA_EWAEL_WDPLANT_STR-POST_CODE1_DI sy-vline 
WA_EWAEL_WDPLANT_STR-COUNTRY_DI sy-vline 
WA_EWAEL_WDPLANT_STR-STREET_DI sy-vline 
WA_EWAEL_WDPLANT_STR-HOUSE_NUM1_DI sy-vline 
WA_EWAEL_WDPLANT_STR-REGION_DI sy-vline 
WA_EWAEL_WDPLANT_STR-ADDR_SHORT_DI sy-vline 
WA_EWAEL_WDPLANT_STR-ACTN_DI sy-vline 
WA_EWAEL_WDPLANT_STR-RECN_DI sy-vline 
WA_EWAEL_WDPLANT_STR-RECNROOT_DI sy-vline 
WA_EWAEL_WDPLANT_STR-PARTNER_DI sy-vline 
WA_EWAEL_WDPLANT_STR-RLTYP_DI sy-vline 
WA_EWAEL_WDPLANT_STR-ADDRNUMBER_DB sy-vline 
WA_EWAEL_WDPLANT_STR-TITLE_DB sy-vline 
WA_EWAEL_WDPLANT_STR-NAME1_DB sy-vline 
WA_EWAEL_WDPLANT_STR-NAME2_DB sy-vline 
WA_EWAEL_WDPLANT_STR-NAME_TXT_DB sy-vline 
WA_EWAEL_WDPLANT_STR-CITY1_DB sy-vline 
WA_EWAEL_WDPLANT_STR-CITY2_DB sy-vline 
WA_EWAEL_WDPLANT_STR-POST_CODE1_DB sy-vline 
WA_EWAEL_WDPLANT_STR-COUNTRY_DB sy-vline 
WA_EWAEL_WDPLANT_STR-STREET_DB sy-vline 
WA_EWAEL_WDPLANT_STR-HOUSE_NUM1_DB sy-vline 
WA_EWAEL_WDPLANT_STR-REGION_DB sy-vline 
WA_EWAEL_WDPLANT_STR-ADDR_SHORT_DB sy-vline 
WA_EWAEL_WDPLANT_STR-ADDRNUMBER_KR sy-vline 
WA_EWAEL_WDPLANT_STR-TITLE_KR sy-vline 
WA_EWAEL_WDPLANT_STR-NAME1_KR sy-vline 
WA_EWAEL_WDPLANT_STR-NAME2_KR sy-vline 
WA_EWAEL_WDPLANT_STR-NAME_TXT_KR sy-vline 
WA_EWAEL_WDPLANT_STR-CITY1_KR sy-vline 
WA_EWAEL_WDPLANT_STR-CITY2_KR sy-vline 
WA_EWAEL_WDPLANT_STR-POST_CODE1_KR sy-vline 
WA_EWAEL_WDPLANT_STR-COUNTRY_KR sy-vline 
WA_EWAEL_WDPLANT_STR-STREET_KR sy-vline 
WA_EWAEL_WDPLANT_STR-HOUSE_NUM1_KR sy-vline 
WA_EWAEL_WDPLANT_STR-REGION_KR sy-vline 
WA_EWAEL_WDPLANT_STR-ADDR_SHORT_KR sy-vline 
WA_EWAEL_WDPLANT_STR-SYMBOL_AC sy-vline 
WA_EWAEL_WDPLANT_STR-DESCIPTION_AC sy-vline 
WA_EWAEL_WDPLANT_STR-CUST_ENH_ACTIVE_AC sy-vline 
WA_EWAEL_WDPLANT_STR-CUST_OVERRIDE_AC sy-vline 
WA_EWAEL_WDPLANT_STR-ONLY_ACTIVE_AC sy-vline 
WA_EWAEL_WDPLANT_STR-SHOWALL_WU sy-vline 
WA_EWAEL_WDPLANT_STR-LAST_REFRESH_WU sy-vline 
WA_EWAEL_WDPLANT_STR-KEYDATE_WU sy-vline      INTO ld_text SEPARATED BY SPACE.

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