ABAP Select data from SAP table ESH_L_ESHDEM2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ESH_L_ESHDEM2 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 ESH_L_ESHDEM2. 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 ESH_L_ESHDEM2 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_ESH_L_ESHDEM2 TYPE STANDARD TABLE OF ESH_L_ESHDEM2,
      WA_ESH_L_ESHDEM2 TYPE ESH_L_ESHDEM2,
      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: <ESH_L_ESHDEM2> TYPE ESH_L_ESHDEM2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ESH_L_ESHDEM2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ESH_L_ESHDEM2
  INTO TABLE IT_ESH_L_ESHDEM2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_ESHDEM2
*  INTO TABLE @DATA(IT_ESH_L_ESHDEM22).
*--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_ESH_L_ESHDEM2 INDEX 1 INTO DATA(WA_ESH_L_ESHDEM22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ESH_L_ESHDEM2 ASSIGNING <ESH_L_ESHDEM2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_ESHDEM2>-MANDT = 1.
<ESH_L_ESHDEM2>-PRODUCT = 1.
<ESH_L_ESHDEM2>-ABCINDICATOR = 1.
<ESH_L_ESHDEM2>-AUTHPRODTYPE = 1.
<ESH_L_ESHDEM2>-AUTHPRODGROUP = 1.

ENDLOOP.

LOOP AT IT_ESH_L_ESHDEM2 INTO WA_ESH_L_ESHDEM2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_ESHDEM2-AUTHPROD, sy-vline,
  WA_ESH_L_ESHDEM2-BASEUNITCODE, sy-vline,
  WA_ESH_L_ESHDEM2-CHARACTERISTIC, sy-vline,
  WA_ESH_L_ESHDEM2-CHARCDESCRIPTION, sy-vline,
  WA_ESH_L_ESHDEM2-CHARCFROMAMOUNT, sy-vline,
  WA_ESH_L_ESHDEM2-CHARCFROMDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_ESHDEM2 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_ESH_L_ESHDEM2 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_ESH_L_ESHDEM2 INTO WA_ESH_L_ESHDEM2.


*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 MATN1, internal->external for field PRODUCT
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_ESHDEM2-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM2-PRODUCT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BASEUNITCODE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_ESHDEM2-BASEUNITCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM2-BASEUNITCODE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DOCUMENTINFORECORDDOCNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_ESHDEM2-DOCUMENTINFORECORDDOCNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM2-DOCUMENTINFORECORDDOCNUMBER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EAN11, internal->external for field PRODUCTSTANDARDID
CALL FUNCTION 'CONVERSION_EXIT_EAN11_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_ESHDEM2-PRODUCTSTANDARDID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM2-PRODUCTSTANDARDID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PURCHASEORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_ESHDEM2-PURCHASEORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM2-PURCHASEORDERQUANTITYUNIT.
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_ESH_L_ESHDEM2_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
ABCINDICATOR TYPE STRING,
AUTHPRODTYPE TYPE STRING,
AUTHPRODGROUP TYPE STRING,
AUTHPROD TYPE STRING,
BASEUNITCODE TYPE STRING,
CHARACTERISTIC TYPE STRING,
CHARCDESCRIPTION TYPE STRING,
CHARCFROMAMOUNT TYPE STRING,
CHARCFROMDATE TYPE STRING,
CHARCFROMDECIMALVALUE TYPE STRING,
CHARCFROMTIME TYPE STRING,
CHARCTOAMOUNT TYPE STRING,
CHARCTODATE TYPE STRING,
CHARCTODECIMALVALUE TYPE STRING,
CHARCTOTIME TYPE STRING,
CHARCVALUE TYPE STRING,
CHARCVALUEDESCRIPTION TYPE STRING,
CLASS TYPE STRING,
CLASSDESCRIPTION TYPE STRING,
CLASSKEYWORDTEXT TYPE STRING,
CLASSTYPE TYPE STRING,
COUNTRYNAME TYPE STRING,
CREATEDBYUSER TYPE STRING,
CURRENCY TYPE STRING,
DIVISION TYPE STRING,
DIVISIONNAME TYPE STRING,
DOCUMENTINFORECORDDOCNUMBER TYPE STRING,
GROSSWEIGHT TYPE STRING,
ABCINDICATORDESCRIPTION TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
MATERIALTYPENAME TYPE STRING,
NAME TYPE STRING,
NETWEIGHT TYPE STRING,
OBJECTDESCRIPTION TYPE STRING,
ORGANIZATIONBPNAME1 TYPE STRING,
PLAINLONGTEXT TYPE STRING,
PLANT TYPE STRING,
PLANTNAME TYPE STRING,
PRODUCTCATEGORY TYPE STRING,
PRODUCTEXTERNALID TYPE STRING,
PRODUCTGROUP TYPE STRING,
PRODUCTNAME TYPE STRING,
PRODUCTOLDID TYPE STRING,
PRODUCTSALESORG TYPE STRING,
PRODUCTSTANDARDID TYPE STRING,
PRODUCTTYPE TYPE STRING,
PURCHASEORDERQUANTITYUNIT TYPE STRING,
PURCHASINGGROUP TYPE STRING,
PURCHASINGGROUPNAME TYPE STRING,
SALESORGANIZATIONNAME TYPE STRING,
SOURCEOFSUPPLYCATEGORYNAME TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
ORDERUNIT TYPE STRING,
BASEUNIT TYPE STRING,
UNITOFMEASURE_E TYPE STRING,
WEIGHTUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_ESHDEM2_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_ESH_L_ESHDEM2_STR-MANDT sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCT sy-vline 
WA_ESH_L_ESHDEM2_STR-ABCINDICATOR sy-vline 
WA_ESH_L_ESHDEM2_STR-AUTHPRODTYPE sy-vline 
WA_ESH_L_ESHDEM2_STR-AUTHPRODGROUP sy-vline 
WA_ESH_L_ESHDEM2_STR-AUTHPROD sy-vline 
WA_ESH_L_ESHDEM2_STR-BASEUNITCODE sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARACTERISTIC sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCFROMAMOUNT sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCFROMDATE sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCFROMDECIMALVALUE sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCFROMTIME sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCTOAMOUNT sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCTODATE sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCTODECIMALVALUE sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCTOTIME sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCVALUE sy-vline 
WA_ESH_L_ESHDEM2_STR-CHARCVALUEDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM2_STR-CLASS sy-vline 
WA_ESH_L_ESHDEM2_STR-CLASSDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM2_STR-CLASSKEYWORDTEXT sy-vline 
WA_ESH_L_ESHDEM2_STR-CLASSTYPE sy-vline 
WA_ESH_L_ESHDEM2_STR-COUNTRYNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-CREATEDBYUSER sy-vline 
WA_ESH_L_ESHDEM2_STR-CURRENCY sy-vline 
WA_ESH_L_ESHDEM2_STR-DIVISION sy-vline 
WA_ESH_L_ESHDEM2_STR-DIVISIONNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-DOCUMENTINFORECORDDOCNUMBER sy-vline 
WA_ESH_L_ESHDEM2_STR-GROSSWEIGHT sy-vline 
WA_ESH_L_ESHDEM2_STR-ABCINDICATORDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM2_STR-MATERIALGROUPNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-MATERIALTYPENAME sy-vline 
WA_ESH_L_ESHDEM2_STR-NAME sy-vline 
WA_ESH_L_ESHDEM2_STR-NETWEIGHT sy-vline 
WA_ESH_L_ESHDEM2_STR-OBJECTDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM2_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_ESH_L_ESHDEM2_STR-PLAINLONGTEXT sy-vline 
WA_ESH_L_ESHDEM2_STR-PLANT sy-vline 
WA_ESH_L_ESHDEM2_STR-PLANTNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTCATEGORY sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTEXTERNALID sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTGROUP sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTOLDID sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTSALESORG sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTSTANDARDID sy-vline 
WA_ESH_L_ESHDEM2_STR-PRODUCTTYPE sy-vline 
WA_ESH_L_ESHDEM2_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_ESH_L_ESHDEM2_STR-PURCHASINGGROUP sy-vline 
WA_ESH_L_ESHDEM2_STR-PURCHASINGGROUPNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-SALESORGANIZATIONNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-SOURCEOFSUPPLYCATEGORYNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-STORAGELOCATIONNAME sy-vline 
WA_ESH_L_ESHDEM2_STR-ORDERUNIT sy-vline 
WA_ESH_L_ESHDEM2_STR-BASEUNIT sy-vline 
WA_ESH_L_ESHDEM2_STR-UNITOFMEASURE_E sy-vline 
WA_ESH_L_ESHDEM2_STR-WEIGHTUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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