ABAP Select data from SAP table EHSWAT_ENTAM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EHSWAT_ENTAM
*  INTO TABLE @DATA(IT_EHSWAT_ENTAM2).
*--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_EHSWAT_ENTAM INDEX 1 INTO DATA(WA_EHSWAT_ENTAM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EHSWAT_ENTAM>-MANDT = 1.
<EHSWAT_ENTAM>-RECN = 1.
<EHSWAT_ENTAM>-DELFLG = 1.
<EHSWAT_ENTAM>-PARKFLG = 1.
<EHSWAT_ENTAM>-CRDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EHSWAT_ENTAM-CRNAM, sy-vline,
  WA_EHSWAT_ENTAM-UPDDAT, sy-vline,
  WA_EHSWAT_ENTAM-UPDNAM, sy-vline,
  WA_EHSWAT_ENTAM-SRSID, sy-vline,
  WA_EHSWAT_ENTAM-OWNID, sy-vline,
  WA_EHSWAT_ENTAM-RECNROOT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EHSWAT_ENTAM 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_EHSWAT_ENTAM 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_EHSWAT_ENTAM INTO WA_EHSWAT_ENTAM.


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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EHSWAT_ENTAM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSWAT_ENTAM-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field MATNRO
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_EHSWAT_ENTAM-MATNRO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EHSWAT_ENTAM-MATNRO.
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_EHSWAT_ENTAM_STR, 
MANDT TYPE STRING,
RECN TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
ENTAMNO TYPE STRING,
EANOCAT TYPE STRING,
OBJNR TYPE STRING,
EASTATUS TYPE STRING,
RECNBPGEN TYPE STRING,
MATNR TYPE STRING,
RECNBPWANO TYPE STRING,
ACCAT TYPE STRING,
DISTFLG TYPE STRING,
ENTAMWADES TYPE STRING,
CHARG TYPE STRING,
STOEND TYPE STRING,
INSMK TYPE STRING,
EAINTAM TYPE STRING,
EAINTAMU TYPE STRING,
EAEXTAM TYPE STRING,
EAEXTAMU TYPE STRING,
SHKZG TYPE STRING,
ANZGEB TYPE STRING,
ANZGEBEINH TYPE STRING,
WERKSS TYPE STRING,
LGORT TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
EADISP TYPE STRING,
BUKRS TYPE STRING,
WERKS TYPE STRING,
GSBER TYPE STRING,
EADAT TYPE STRING,
MATNRO TYPE STRING,
CHARGM TYPE STRING,
DOCNO TYPE STRING,
EATREAT TYPE STRING,
EARECYC TYPE STRING,
STORNAM TYPE STRING,
TAKENAM TYPE STRING,
EALTXT TYPE STRING,
KZLTXT TYPE STRING,
CLTFLD1 TYPE STRING,
CLTFLD2 TYPE STRING,
STOENTAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EHSWAT_ENTAM_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_EHSWAT_ENTAM_STR-MANDT sy-vline 
WA_EHSWAT_ENTAM_STR-RECN sy-vline 
WA_EHSWAT_ENTAM_STR-DELFLG sy-vline 
WA_EHSWAT_ENTAM_STR-PARKFLG sy-vline 
WA_EHSWAT_ENTAM_STR-CRDAT sy-vline 
WA_EHSWAT_ENTAM_STR-CRNAM sy-vline 
WA_EHSWAT_ENTAM_STR-UPDDAT sy-vline 
WA_EHSWAT_ENTAM_STR-UPDNAM sy-vline 
WA_EHSWAT_ENTAM_STR-SRSID sy-vline 
WA_EHSWAT_ENTAM_STR-OWNID sy-vline 
WA_EHSWAT_ENTAM_STR-RECNROOT sy-vline 
WA_EHSWAT_ENTAM_STR-ENTAMNO sy-vline 
WA_EHSWAT_ENTAM_STR-EANOCAT sy-vline 
WA_EHSWAT_ENTAM_STR-OBJNR sy-vline 
WA_EHSWAT_ENTAM_STR-EASTATUS sy-vline 
WA_EHSWAT_ENTAM_STR-RECNBPGEN sy-vline 
WA_EHSWAT_ENTAM_STR-MATNR sy-vline 
WA_EHSWAT_ENTAM_STR-RECNBPWANO sy-vline 
WA_EHSWAT_ENTAM_STR-ACCAT sy-vline 
WA_EHSWAT_ENTAM_STR-DISTFLG sy-vline 
WA_EHSWAT_ENTAM_STR-ENTAMWADES sy-vline 
WA_EHSWAT_ENTAM_STR-CHARG sy-vline 
WA_EHSWAT_ENTAM_STR-STOEND sy-vline 
WA_EHSWAT_ENTAM_STR-INSMK sy-vline 
WA_EHSWAT_ENTAM_STR-EAINTAM sy-vline 
WA_EHSWAT_ENTAM_STR-EAINTAMU sy-vline 
WA_EHSWAT_ENTAM_STR-EAEXTAM sy-vline 
WA_EHSWAT_ENTAM_STR-EAEXTAMU sy-vline 
WA_EHSWAT_ENTAM_STR-SHKZG sy-vline 
WA_EHSWAT_ENTAM_STR-ANZGEB sy-vline 
WA_EHSWAT_ENTAM_STR-ANZGEBEINH sy-vline 
WA_EHSWAT_ENTAM_STR-WERKSS sy-vline 
WA_EHSWAT_ENTAM_STR-LGORT sy-vline 
WA_EHSWAT_ENTAM_STR-LGNUM sy-vline 
WA_EHSWAT_ENTAM_STR-LGTYP sy-vline 
WA_EHSWAT_ENTAM_STR-LGPLA sy-vline 
WA_EHSWAT_ENTAM_STR-EADISP sy-vline 
WA_EHSWAT_ENTAM_STR-BUKRS sy-vline 
WA_EHSWAT_ENTAM_STR-WERKS sy-vline 
WA_EHSWAT_ENTAM_STR-GSBER sy-vline 
WA_EHSWAT_ENTAM_STR-EADAT sy-vline 
WA_EHSWAT_ENTAM_STR-MATNRO sy-vline 
WA_EHSWAT_ENTAM_STR-CHARGM sy-vline 
WA_EHSWAT_ENTAM_STR-DOCNO sy-vline 
WA_EHSWAT_ENTAM_STR-EATREAT sy-vline 
WA_EHSWAT_ENTAM_STR-EARECYC sy-vline 
WA_EHSWAT_ENTAM_STR-STORNAM sy-vline 
WA_EHSWAT_ENTAM_STR-TAKENAM sy-vline 
WA_EHSWAT_ENTAM_STR-EALTXT sy-vline 
WA_EHSWAT_ENTAM_STR-KZLTXT sy-vline 
WA_EHSWAT_ENTAM_STR-CLTFLD1 sy-vline 
WA_EHSWAT_ENTAM_STR-CLTFLD2 sy-vline 
WA_EHSWAT_ENTAM_STR-STOENTAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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