ABAP Select data from SAP table ESH_L_CTLG_ITM 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_CTLG_ITM 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_CTLG_ITM. 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_CTLG_ITM 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_CTLG_ITM TYPE STANDARD TABLE OF ESH_L_CTLG_ITM,
      WA_ESH_L_CTLG_ITM TYPE ESH_L_CTLG_ITM,
      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_CTLG_ITM> TYPE ESH_L_CTLG_ITM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ESH_L_CTLG_ITM
*  INTO TABLE @DATA(IT_ESH_L_CTLG_ITM2).
*--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_CTLG_ITM INDEX 1 INTO DATA(WA_ESH_L_CTLG_ITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ESH_L_CTLG_ITM>-MANDT = 1.
<ESH_L_CTLG_ITM>-OPNCTLGITEMID = 1.
<ESH_L_CTLG_ITM>-SAPCLIENT = 1.
<ESH_L_CTLG_ITM>-BASEUNIT = 1.
<ESH_L_CTLG_ITM>-CALCULATEDPRICE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ESH_L_CTLG_ITM-COMPANYCODE, sy-vline,
  WA_ESH_L_CTLG_ITM-CURRENCY, sy-vline,
  WA_ESH_L_CTLG_ITM-DELETIONINDICATOR, sy-vline,
  WA_ESH_L_CTLG_ITM-ISMARKEDFORDELETION, sy-vline,
  WA_ESH_L_CTLG_ITM-ISOPNCTLGITEM, sy-vline,
  WA_ESH_L_CTLG_ITM-ISOPNCTLGITMFRMMATLMSTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ESH_L_CTLG_ITM 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_CTLG_ITM 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_CTLG_ITM INTO WA_ESH_L_CTLG_ITM.


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

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_CTLG_ITM-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_CTLG_ITM-LANGUAGE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ORDERQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ESH_L_CTLG_ITM-ORDERQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ESH_L_CTLG_ITM-ORDERQUANTITYUNIT.
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_CTLG_ITM_STR, 
MANDT TYPE STRING,
OPNCTLGITEMID TYPE STRING,
SAPCLIENT TYPE STRING,
BASEUNIT TYPE STRING,
CALCULATEDPRICE TYPE STRING,
COMPANYCODE TYPE STRING,
CURRENCY TYPE STRING,
DELETIONINDICATOR TYPE STRING,
ISMARKEDFORDELETION TYPE STRING,
ISOPNCTLGITEM TYPE STRING,
ISOPNCTLGITMFRMMATLMSTR TYPE STRING,
ISOPNCTLGMANAGED TYPE STRING,
LANGUAGE TYPE STRING,
MANUFACTURER TYPE STRING,
MANUFACTURERNAME TYPE STRING,
MATERIAL TYPE STRING,
MATERIALGROUPNAME TYPE STRING,
NETPRICEAMOUNT TYPE STRING,
OPENCATALOGMATERIALGROUP TYPE STRING,
OPENCATALOGUNITOFMEASURE TYPE STRING,
OPENCATALOGUSERRATINGVALUE TYPE STRING,
OPNCTLGARCHIVINGSTATUS TYPE STRING,
OPNCTLGCOMCURRENCYID TYPE STRING,
OPNCTLGDIRECTEMISSIONUNIT TYPE STRING,
OPNCTLGDIRECTEMISSIONVALUE TYPE STRING,
OPNCTLGENERGYCONSUMPTIONUNIT TYPE STRING,
OPNCTLGENERGYCONSUMPTIONVALUE TYPE STRING,
OPNCTLGEXTERNALPRODUCTID TYPE STRING,
OPNCTLGHASPRICESCALE TYPE STRING,
OPNCTLGINDRCTEMISSIONUNIT TYPE STRING,
OPNCTLGINDRCTEMISSIONVALUE TYPE STRING,
OPNCTLGINTCATALOGNAME TYPE STRING,
OPNCTLGISSERVICEMATERIALTYPE TYPE STRING,
OPNCTLGITEMCURRENCY TYPE STRING,
OPNCTLGITEMKEY TYPE STRING,
OPNCTLGITEMPRICE TYPE STRING,
OPNCTLGITEMPRICEQUANTITYVALUE TYPE STRING,
OPNCTLGITEMSUSTAINCOMPLIANCE TYPE STRING,
OPNCTLGLEADTMEANNCMNTDUDAYSVAL TYPE STRING,
OPNCTLGMAINIMAGEID TYPE STRING,
OPNCTLGMAINIMAGENAME TYPE STRING,
OPNCTLGMAINIMAGETEXT TYPE STRING,
OPNCTLGMAINIMAGEURL TYPE STRING,
OPNCTLGMATERIALIDBYSUPPLIER TYPE STRING,
OPNCTLGMATLFIXEDLOTSIZEQTYVAL TYPE STRING,
OPNCTLGMFRMATERIALNUMBER TYPE STRING,
OPNCTLGMINORDERQUANTITYVALUE TYPE STRING,
OPNCTLGPRCAMOUNTINCOMCURRENCY TYPE STRING,
OPNCTLGPRICEVALIDFROMDATETIME TYPE STRING,
OPNCTLGPRICEVALIDTODATETIME TYPE STRING,
OPNCTLGRECYCLEUNIT TYPE STRING,
OPNCTLGRECYCLEVALUE TYPE STRING,
OPNCTLGSEARCHTERM TYPE STRING,
OPNCTLGSOURCELISTVALIDFROMDATE TYPE STRING,
OPNCTLGSOURCELISTVALIDTODATE TYPE STRING,
OPNCTLGSRCHLONGTEXT TYPE STRING,
OPNCTLGSUPPLIERID TYPE STRING,
OPNCTLGSUPPLIERNAME TYPE STRING,
OPNCTLGTEMPEMISSIONUNIT TYPE STRING,
OPNCTLGTEMPEMISSIONVALUE TYPE STRING,
OPNCTLGWASTEGENERATEDUNIT TYPE STRING,
OPNCTLGWASTEGENERATEDVALUE TYPE STRING,
OPNCTLGWATERCONSUMPTIONUNIT TYPE STRING,
OPNCTLGWATERCONSUMPTIONVALUE TYPE STRING,
OPNCTLGWEBSERVICEID TYPE STRING,
OPNCTLGWEBSERVICENAME TYPE STRING,
ORDERPRICEUNITQTY TYPE STRING,
ORDERQUANTITYUNIT TYPE STRING,
PLANTNAME TYPE STRING,
PROCUREMENTHUBSOURCESYSTEM TYPE STRING,
PRODUCTCATALOGNAME TYPE STRING,
PRODUCTDESCRIPTION TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
PURCHASINGISBLOCKED TYPE STRING,
PURCHASINGORGANIZATION TYPE STRING,
PURREQNSOURCEOFSUPPLYTYPE TYPE STRING,
SOURCEOFSUPPLYISBLOCKED TYPE STRING,
SOURCEOFSUPPLYISFIXED TYPE STRING,
TAXTOLERANCEPERCENT TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ESH_L_CTLG_ITM_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_CTLG_ITM_STR-MANDT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGITEMID sy-vline 
WA_ESH_L_CTLG_ITM_STR-SAPCLIENT sy-vline 
WA_ESH_L_CTLG_ITM_STR-BASEUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-CALCULATEDPRICE sy-vline 
WA_ESH_L_CTLG_ITM_STR-COMPANYCODE sy-vline 
WA_ESH_L_CTLG_ITM_STR-CURRENCY sy-vline 
WA_ESH_L_CTLG_ITM_STR-DELETIONINDICATOR sy-vline 
WA_ESH_L_CTLG_ITM_STR-ISMARKEDFORDELETION sy-vline 
WA_ESH_L_CTLG_ITM_STR-ISOPNCTLGITEM sy-vline 
WA_ESH_L_CTLG_ITM_STR-ISOPNCTLGITMFRMMATLMSTR sy-vline 
WA_ESH_L_CTLG_ITM_STR-ISOPNCTLGMANAGED sy-vline 
WA_ESH_L_CTLG_ITM_STR-LANGUAGE sy-vline 
WA_ESH_L_CTLG_ITM_STR-MANUFACTURER sy-vline 
WA_ESH_L_CTLG_ITM_STR-MANUFACTURERNAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-MATERIAL sy-vline 
WA_ESH_L_CTLG_ITM_STR-MATERIALGROUPNAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-NETPRICEAMOUNT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPENCATALOGMATERIALGROUP sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPENCATALOGUNITOFMEASURE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPENCATALOGUSERRATINGVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGARCHIVINGSTATUS sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGCOMCURRENCYID sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGDIRECTEMISSIONUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGDIRECTEMISSIONVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGENERGYCONSUMPTIONUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGENERGYCONSUMPTIONVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGEXTERNALPRODUCTID sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGHASPRICESCALE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGINDRCTEMISSIONUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGINDRCTEMISSIONVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGINTCATALOGNAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGISSERVICEMATERIALTYPE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGITEMCURRENCY sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGITEMKEY sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGITEMPRICE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGITEMPRICEQUANTITYVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGITEMSUSTAINCOMPLIANCE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGLEADTMEANNCMNTDUDAYSVAL sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMAINIMAGEID sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMAINIMAGENAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMAINIMAGETEXT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMAINIMAGEURL sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMATERIALIDBYSUPPLIER sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMATLFIXEDLOTSIZEQTYVAL sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMFRMATERIALNUMBER sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGMINORDERQUANTITYVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGPRCAMOUNTINCOMCURRENCY sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGPRICEVALIDFROMDATETIME sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGPRICEVALIDTODATETIME sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGRECYCLEUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGRECYCLEVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGSEARCHTERM sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGSOURCELISTVALIDFROMDATE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGSOURCELISTVALIDTODATE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGSRCHLONGTEXT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGSUPPLIERID sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGSUPPLIERNAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGTEMPEMISSIONUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGTEMPEMISSIONVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGWASTEGENERATEDUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGWASTEGENERATEDVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGWATERCONSUMPTIONUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGWATERCONSUMPTIONVALUE sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGWEBSERVICEID sy-vline 
WA_ESH_L_CTLG_ITM_STR-OPNCTLGWEBSERVICENAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-ORDERPRICEUNITQTY sy-vline 
WA_ESH_L_CTLG_ITM_STR-ORDERQUANTITYUNIT sy-vline 
WA_ESH_L_CTLG_ITM_STR-PLANTNAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-PROCUREMENTHUBSOURCESYSTEM sy-vline 
WA_ESH_L_CTLG_ITM_STR-PRODUCTCATALOGNAME sy-vline 
WA_ESH_L_CTLG_ITM_STR-PRODUCTDESCRIPTION sy-vline 
WA_ESH_L_CTLG_ITM_STR-PURCHASINGDOCUMENT sy-vline 
WA_ESH_L_CTLG_ITM_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_ESH_L_CTLG_ITM_STR-PURCHASINGISBLOCKED sy-vline 
WA_ESH_L_CTLG_ITM_STR-PURCHASINGORGANIZATION sy-vline 
WA_ESH_L_CTLG_ITM_STR-PURREQNSOURCEOFSUPPLYTYPE sy-vline 
WA_ESH_L_CTLG_ITM_STR-SOURCEOFSUPPLYISBLOCKED sy-vline 
WA_ESH_L_CTLG_ITM_STR-SOURCEOFSUPPLYISFIXED sy-vline 
WA_ESH_L_CTLG_ITM_STR-TAXTOLERANCEPERCENT sy-vline 
WA_ESH_L_CTLG_ITM_STR-VALIDITYENDDATE sy-vline 
WA_ESH_L_CTLG_ITM_STR-VALIDITYSTARTDATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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