ABAP Select data from SAP table CUSEINVTONEQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CUSEINVTONEQ
*  INTO TABLE @DATA(IT_CUSEINVTONEQ2).
*--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_CUSEINVTONEQ INDEX 1 INTO DATA(WA_CUSEINVTONEQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CUSEINVTONEQ>-MANDT = 1.
<CUSEINVTONEQ>-STORAGELOCATION = 1.
<CUSEINVTONEQ>-PLANT = 1.
<CUSEINVTONEQ>-PRODUCT = 1.
<CUSEINVTONEQ>-STOCKREPORTINGDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CUSEINVTONEQ-STOCKUNIT, sy-vline,
  WA_CUSEINVTONEQ-US_EPCRAHAZARDCLASS, sy-vline,
  WA_CUSEINVTONEQ-PLANTANDSTORAGELOCATION, sy-vline,
  WA_CUSEINVTONEQ-CHEMICALUUID, sy-vline,
  WA_CUSEINVTONEQ-NAMEOFCHEMICAL, sy-vline,
  WA_CUSEINVTONEQ-CHEMICALID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CUSEINVTONEQ 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_CUSEINVTONEQ 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_CUSEINVTONEQ INTO WA_CUSEINVTONEQ.


*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_CUSEINVTONEQ-PRODUCT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUSEINVTONEQ-PRODUCT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field CHEMICALID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CUSEINVTONEQ-CHEMICALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CUSEINVTONEQ-CHEMICALID.
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_CUSEINVTONEQ_STR, 
MANDT TYPE STRING,
STORAGELOCATION TYPE STRING,
PLANT TYPE STRING,
PRODUCT TYPE STRING,
STOCKREPORTINGDATE TYPE STRING,
STOCKUNIT TYPE STRING,
US_EPCRAHAZARDCLASS TYPE STRING,
PLANTANDSTORAGELOCATION TYPE STRING,
CHEMICALUUID TYPE STRING,
NAMEOFCHEMICAL TYPE STRING,
CHEMICALID TYPE STRING,
US_EPCRAHAZARDCLCNCTNTDNAME TYPE STRING,
COMPANYCODE TYPE STRING,
MAXIMUMSTOCKQUANTITY TYPE STRING,
AVERAGESTOCKQUANTITY TYPE STRING,
DAYSPRODUCTONSITEQUANTITY TYPE STRING,
US_EPCRASTORAGECONDITION TYPE STRING,
US_EPCRAHASMULTIPLECHMLASSGD TYPE STRING,
CASNUMBER TYPE STRING,
US_EPCRAISEXTREMELYHZDSSUBST TYPE STRING,
US_EPCRACONTAINERTYPE TYPE STRING,
STATEOFMATTER TYPE STRING,
MATERIALNAME TYPE STRING,
PLANTNAME TYPE STRING,
CHEMICALTYPENAME TYPE STRING,
US_EPCRAHAZARDCLASSNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CUSEINVTONEQ_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_CUSEINVTONEQ_STR-MANDT sy-vline 
WA_CUSEINVTONEQ_STR-STORAGELOCATION sy-vline 
WA_CUSEINVTONEQ_STR-PLANT sy-vline 
WA_CUSEINVTONEQ_STR-PRODUCT sy-vline 
WA_CUSEINVTONEQ_STR-STOCKREPORTINGDATE sy-vline 
WA_CUSEINVTONEQ_STR-STOCKUNIT sy-vline 
WA_CUSEINVTONEQ_STR-US_EPCRAHAZARDCLASS sy-vline 
WA_CUSEINVTONEQ_STR-PLANTANDSTORAGELOCATION sy-vline 
WA_CUSEINVTONEQ_STR-CHEMICALUUID sy-vline 
WA_CUSEINVTONEQ_STR-NAMEOFCHEMICAL sy-vline 
WA_CUSEINVTONEQ_STR-CHEMICALID sy-vline 
WA_CUSEINVTONEQ_STR-US_EPCRAHAZARDCLCNCTNTDNAME sy-vline 
WA_CUSEINVTONEQ_STR-COMPANYCODE sy-vline 
WA_CUSEINVTONEQ_STR-MAXIMUMSTOCKQUANTITY sy-vline 
WA_CUSEINVTONEQ_STR-AVERAGESTOCKQUANTITY sy-vline 
WA_CUSEINVTONEQ_STR-DAYSPRODUCTONSITEQUANTITY sy-vline 
WA_CUSEINVTONEQ_STR-US_EPCRASTORAGECONDITION sy-vline 
WA_CUSEINVTONEQ_STR-US_EPCRAHASMULTIPLECHMLASSGD sy-vline 
WA_CUSEINVTONEQ_STR-CASNUMBER sy-vline 
WA_CUSEINVTONEQ_STR-US_EPCRAISEXTREMELYHZDSSUBST sy-vline 
WA_CUSEINVTONEQ_STR-US_EPCRACONTAINERTYPE sy-vline 
WA_CUSEINVTONEQ_STR-STATEOFMATTER sy-vline 
WA_CUSEINVTONEQ_STR-MATERIALNAME sy-vline 
WA_CUSEINVTONEQ_STR-PLANTNAME sy-vline 
WA_CUSEINVTONEQ_STR-CHEMICALTYPENAME sy-vline 
WA_CUSEINVTONEQ_STR-US_EPCRAHAZARDCLASSNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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