ABAP Select data from SAP table EAM_SERVICE_REQUEST_ERPBASIC_2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP EAM_SERVICE_REQUEST_ERPBASIC_2 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 EAM_SERVICE_REQUEST_ERPBASIC_2. 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 EAM_SERVICE_REQUEST_ERPBASIC_2 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_EAM_SERVICE_REQUEST_ERPBASIC_2 TYPE STANDARD TABLE OF EAM_SERVICE_REQUEST_ERPBASIC_2,
      WA_EAM_SERVICE_REQUEST_ERPBASIC_2 TYPE EAM_SERVICE_REQUEST_ERPBASIC_2,
      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: <EAM_SERVICE_REQUEST_ERPBASIC_2> TYPE EAM_SERVICE_REQUEST_ERPBASIC_2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_EAM_SERVICE_REQUEST_ERPBASIC_2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM EAM_SERVICE_REQUEST_ERPBASIC_2
  INTO TABLE IT_EAM_SERVICE_REQUEST_ERPBASIC_2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EAM_SERVICE_REQUEST_ERPBASIC_2
*  INTO TABLE @DATA(IT_EAM_SERVICE_REQUEST_ERPBASIC_22).
*--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_EAM_SERVICE_REQUEST_ERPBASIC_2 INDEX 1 INTO DATA(WA_EAM_SERVICE_REQUEST_ERPBASIC_22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_EAM_SERVICE_REQUEST_ERPBASIC_2 ASSIGNING <EAM_SERVICE_REQUEST_ERPBASIC_2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EAM_SERVICE_REQUEST_ERPBASIC_2>-CONTROLLER = 1.
<EAM_SERVICE_REQUEST_ERPBASIC_2>-SERVICE_REQUEST_ERPBASIC_DATA = 1.
<EAM_SERVICE_REQUEST_ERPBASIC_2>-CONTROLLER = 1.
<EAM_SERVICE_REQUEST_ERPBASIC_2>-SERVICE_REQUEST_BASIC_DATA_SEL = 1.
<EAM_SERVICE_REQUEST_ERPBASIC_2>-CONTROLLER = 1.

ENDLOOP.

LOOP AT IT_EAM_SERVICE_REQUEST_ERPBASIC_2 INTO WA_EAM_SERVICE_REQUEST_ERPBASIC_2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EAM_SERVICE_REQUEST_ERPBASIC_2-SELECTION_BY_MATERIAL_INTERNAL, sy-vline,
  WA_EAM_SERVICE_REQUEST_ERPBASIC_2-SELECTION_BY_INSTALLATION_POIN, sy-vline,
  WA_EAM_SERVICE_REQUEST_ERPBASIC_2-SELECTION_BY_INDIVIDUAL_MATERI, sy-vline,
  WA_EAM_SERVICE_REQUEST_ERPBASIC_2-SELECTION_BY_SERIAL_ID, sy-vline,
  WA_EAM_SERVICE_REQUEST_ERPBASIC_2-SELECTION_BY_SERVICE_REQUEST_T, sy-vline,
  WA_EAM_SERVICE_REQUEST_ERPBASIC_2-REQUESTED_PROCESSING_PERIOD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EAM_SERVICE_REQUEST_ERPBASIC_2 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_EAM_SERVICE_REQUEST_ERPBASIC_2 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_EAM_SERVICE_REQUEST_ERPBASIC_2 INTO WA_EAM_SERVICE_REQUEST_ERPBASIC_2.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_EAM_SERVICE_REQUEST_ERPBASIC_2_STR, 
CONTROLLER TYPE STRING,
SERVICE_REQUEST_ERPBASIC_DATA TYPE STRING,
CONTROLLER TYPE STRING,
SERVICE_REQUEST_BASIC_DATA_SEL TYPE STRING,
CONTROLLER TYPE STRING,
SELECTION_BY_MATERIAL_INTERNAL TYPE STRING,
SELECTION_BY_INSTALLATION_POIN TYPE STRING,
SELECTION_BY_INDIVIDUAL_MATERI TYPE STRING,
SELECTION_BY_SERIAL_ID TYPE STRING,
SELECTION_BY_SERVICE_REQUEST_T TYPE STRING,
REQUESTED_PROCESSING_PERIOD TYPE STRING,
SELECTION_BY_REPORTER_INTERNAL TYPE STRING,
SELECTION_BY_BUYER_DOCUMENT_ID TYPE STRING,
SELECTION_BY_SERVICE_REQUEST_I TYPE STRING,
PARTY_ROLECODE TYPE STRING,
PARTY_INTERNAL_ID TYPE STRING,
SYSTEM_STATUS_CODE TYPE STRING,
SELECTION_BY_SERVICE_PLANNER_G TYPE STRING,
SELECTION_BY_SERVICE_WORK_CEN1 TYPE STRING,
SELECTION_BY_SERVICE_WORK_CENT TYPE STRING,
SELECTION_BY_SERVICE_PLANNING TYPE STRING,
SELECTION_BY_SALES_ORGANISATIO TYPE STRING,
SELECTION_BY_DISTRIBUTION_CHAN TYPE STRING,
SELECTION_BY_DIVISION_CODE TYPE STRING,
TASK_EMPLOYEE_RESPONSIBLE_ID TYPE STRING,
SELECTION_BY_TASK_PARENT_SERVI TYPE STRING,
SELECTION_BY_TASK_SERVICE_ISSU TYPE STRING,
SELECTION_BY_TASK_PLANNED_PROC TYPE STRING,
SELECTION_BY_TASK_PLANNED_PRO1 TYPE STRING,
PROCESSING_CONDITIONS TYPE STRING,
CONTROLLER TYPE STRING,
QUERY_HITS_MAXIMUM_NUMBER_VALU TYPE STRING,
QUERY_HITS_UNLIMITED_INDICATOR TYPE STRING,
LAST_RETURNED_OBJECT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EAM_SERVICE_REQUEST_ERPBASIC_2_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_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-CONTROLLER sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SERVICE_REQUEST_ERPBASIC_DATA sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-CONTROLLER sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SERVICE_REQUEST_BASIC_DATA_SEL sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-CONTROLLER sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_MATERIAL_INTERNAL sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_INSTALLATION_POIN sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_INDIVIDUAL_MATERI sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SERIAL_ID sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SERVICE_REQUEST_T sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-REQUESTED_PROCESSING_PERIOD sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_REPORTER_INTERNAL sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_BUYER_DOCUMENT_ID sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SERVICE_REQUEST_I sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-PARTY_ROLECODE sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-PARTY_INTERNAL_ID sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SYSTEM_STATUS_CODE sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SERVICE_PLANNER_G sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SERVICE_WORK_CEN1 sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SERVICE_WORK_CENT sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SERVICE_PLANNING sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_SALES_ORGANISATIO sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_DISTRIBUTION_CHAN sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_DIVISION_CODE sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-TASK_EMPLOYEE_RESPONSIBLE_ID sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_TASK_PARENT_SERVI sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_TASK_SERVICE_ISSU sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_TASK_PLANNED_PROC sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-SELECTION_BY_TASK_PLANNED_PRO1 sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-PROCESSING_CONDITIONS sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-CONTROLLER sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-QUERY_HITS_MAXIMUM_NUMBER_VALU sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-QUERY_HITS_UNLIMITED_INDICATOR sy-vline 
WA_EAM_SERVICE_REQUEST_ERPBASIC_2_STR-LAST_RETURNED_OBJECT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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