ABAP Select data from SAP table ESH_L_ESHDEM4 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_ESHDEM4 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_ESHDEM4. 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_ESHDEM4 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_ESHDEM4 TYPE STANDARD TABLE OF ESH_L_ESHDEM4,
      WA_ESH_L_ESHDEM4 TYPE ESH_L_ESHDEM4,
      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_ESHDEM4> TYPE ESH_L_ESHDEM4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_ESH_L_ESHDEM4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM ESH_L_ESHDEM4
  INTO TABLE IT_ESH_L_ESHDEM4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_ESHDEM4
*  INTO TABLE @DATA(IT_ESH_L_ESHDEM42).
*--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_ESHDEM4 INDEX 1 INTO DATA(WA_ESH_L_ESHDEM42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_ESH_L_ESHDEM4 ASSIGNING <ESH_L_ESHDEM4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_ESHDEM4>-MANDT = 1.
<ESH_L_ESHDEM4>-PRODUCT = 1.
<ESH_L_ESHDEM4>-ABCINDICATOR = 1.
<ESH_L_ESHDEM4>-AUTHPROD = 1.
<ESH_L_ESHDEM4>-AUTHPRODGROUP = 1.

ENDLOOP.

LOOP AT IT_ESH_L_ESHDEM4 INTO WA_ESH_L_ESHDEM4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_ESHDEM4-AUTHPRODTYPE, sy-vline,
  WA_ESH_L_ESHDEM4-BASEUNITCODE, sy-vline,
  WA_ESH_L_ESHDEM4-CHARACTERISTIC, sy-vline,
  WA_ESH_L_ESHDEM4-CHARCDESCRIPTION, sy-vline,
  WA_ESH_L_ESHDEM4-CHARCFROMAMOUNT, sy-vline,
  WA_ESH_L_ESHDEM4-CHARCFROMDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_ESHDEM4 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_ESHDEM4 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_ESHDEM4 INTO WA_ESH_L_ESHDEM4.


*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_ESHDEM4-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM4-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_ESHDEM4-BASEUNITCODE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM4-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_ESHDEM4-DOCUMENTINFORECORDDOCNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM4-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_ESHDEM4-PRODUCTSTANDARDID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM4-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_ESHDEM4-PURCHASEORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_ESHDEM4-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_ESHDEM4_STR, 
MANDT TYPE STRING,
PRODUCT TYPE STRING,
ABCINDICATOR TYPE STRING,
AUTHPROD TYPE STRING,
AUTHPRODGROUP TYPE STRING,
AUTHPRODTYPE 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,
SOURCEOFSUPPLY TYPE STRING,
SOURCEOFSUPPLYCATEGORYNAME TYPE STRING,
STORAGELOCATIONNAME TYPE STRING,
BASEUNIT TYPE STRING,
ORDERUNIT TYPE STRING,
WEIGHTUNIT TYPE STRING,
UNITOFMEASURE_E TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_ESHDEM4_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_ESHDEM4_STR-MANDT sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCT sy-vline 
WA_ESH_L_ESHDEM4_STR-ABCINDICATOR sy-vline 
WA_ESH_L_ESHDEM4_STR-AUTHPROD sy-vline 
WA_ESH_L_ESHDEM4_STR-AUTHPRODGROUP sy-vline 
WA_ESH_L_ESHDEM4_STR-AUTHPRODTYPE sy-vline 
WA_ESH_L_ESHDEM4_STR-BASEUNITCODE sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARACTERISTIC sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCFROMAMOUNT sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCFROMDATE sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCFROMDECIMALVALUE sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCFROMTIME sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCTOAMOUNT sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCTODATE sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCTODECIMALVALUE sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCTOTIME sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCVALUE sy-vline 
WA_ESH_L_ESHDEM4_STR-CHARCVALUEDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM4_STR-CLASS sy-vline 
WA_ESH_L_ESHDEM4_STR-CLASSDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM4_STR-CLASSKEYWORDTEXT sy-vline 
WA_ESH_L_ESHDEM4_STR-CLASSTYPE sy-vline 
WA_ESH_L_ESHDEM4_STR-COUNTRYNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-CREATEDBYUSER sy-vline 
WA_ESH_L_ESHDEM4_STR-CURRENCY sy-vline 
WA_ESH_L_ESHDEM4_STR-DIVISION sy-vline 
WA_ESH_L_ESHDEM4_STR-DIVISIONNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-DOCUMENTINFORECORDDOCNUMBER sy-vline 
WA_ESH_L_ESHDEM4_STR-GROSSWEIGHT sy-vline 
WA_ESH_L_ESHDEM4_STR-ABCINDICATORDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM4_STR-MATERIALGROUPNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-MATERIALTYPENAME sy-vline 
WA_ESH_L_ESHDEM4_STR-NAME sy-vline 
WA_ESH_L_ESHDEM4_STR-NETWEIGHT sy-vline 
WA_ESH_L_ESHDEM4_STR-OBJECTDESCRIPTION sy-vline 
WA_ESH_L_ESHDEM4_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_ESH_L_ESHDEM4_STR-PLAINLONGTEXT sy-vline 
WA_ESH_L_ESHDEM4_STR-PLANT sy-vline 
WA_ESH_L_ESHDEM4_STR-PLANTNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTCATEGORY sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTEXTERNALID sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTGROUP sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTOLDID sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTSALESORG sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTSTANDARDID sy-vline 
WA_ESH_L_ESHDEM4_STR-PRODUCTTYPE sy-vline 
WA_ESH_L_ESHDEM4_STR-PURCHASEORDERQUANTITYUNIT sy-vline 
WA_ESH_L_ESHDEM4_STR-PURCHASINGGROUP sy-vline 
WA_ESH_L_ESHDEM4_STR-PURCHASINGGROUPNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-SALESORGANIZATIONNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-SOURCEOFSUPPLY sy-vline 
WA_ESH_L_ESHDEM4_STR-SOURCEOFSUPPLYCATEGORYNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-STORAGELOCATIONNAME sy-vline 
WA_ESH_L_ESHDEM4_STR-BASEUNIT sy-vline 
WA_ESH_L_ESHDEM4_STR-ORDERUNIT sy-vline 
WA_ESH_L_ESHDEM4_STR-WEIGHTUNIT sy-vline 
WA_ESH_L_ESHDEM4_STR-UNITOFMEASURE_E sy-vline      INTO ld_text SEPARATED BY SPACE.

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