ABAP Select data from SAP table IEQMATSERNRVH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IEQMATSERNRVH
*  INTO TABLE @DATA(IT_IEQMATSERNRVH2).
*--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_IEQMATSERNRVH INDEX 1 INTO DATA(WA_IEQMATSERNRVH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IEQMATSERNRVH>-MANDT = 1.
<IEQMATSERNRVH>-EQUIPMENT = 1.
<IEQMATSERNRVH>-EQUIPMENTNAME = 1.
<IEQMATSERNRVH>-BUSINESSPARTNER = 1.
<IEQMATSERNRVH>-BUSINESSPARTNERNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IEQMATSERNRVH-MATERIAL, sy-vline,
  WA_IEQMATSERNRVH-MATERIALNAME, sy-vline,
  WA_IEQMATSERNRVH-SERIALNUMBER, sy-vline,
  WA_IEQMATSERNRVH-AUTHORIZATIONGROUP, sy-vline,
  WA_IEQMATSERNRVH-CUSTOMER, sy-vline,
  WA_IEQMATSERNRVH-SUPPLIER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IEQMATSERNRVH 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_IEQMATSERNRVH 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_IEQMATSERNRVH INTO WA_IEQMATSERNRVH.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IEQMATSERNRVH-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IEQMATSERNRVH-SUPPLIER.
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_IEQMATSERNRVH_STR, 
MANDT TYPE STRING,
EQUIPMENT TYPE STRING,
EQUIPMENTNAME TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
MATERIAL TYPE STRING,
MATERIALNAME TYPE STRING,
SERIALNUMBER TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,
HASEQUIPMENTDATA TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IEQMATSERNRVH_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_IEQMATSERNRVH_STR-MANDT sy-vline 
WA_IEQMATSERNRVH_STR-EQUIPMENT sy-vline 
WA_IEQMATSERNRVH_STR-EQUIPMENTNAME sy-vline 
WA_IEQMATSERNRVH_STR-BUSINESSPARTNER sy-vline 
WA_IEQMATSERNRVH_STR-BUSINESSPARTNERNAME sy-vline 
WA_IEQMATSERNRVH_STR-MATERIAL sy-vline 
WA_IEQMATSERNRVH_STR-MATERIALNAME sy-vline 
WA_IEQMATSERNRVH_STR-SERIALNUMBER sy-vline 
WA_IEQMATSERNRVH_STR-AUTHORIZATIONGROUP sy-vline 
WA_IEQMATSERNRVH_STR-CUSTOMER sy-vline 
WA_IEQMATSERNRVH_STR-SUPPLIER sy-vline 
WA_IEQMATSERNRVH_STR-HASEQUIPMENTDATA sy-vline      INTO ld_text SEPARATED BY SPACE.

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