ABAP Select data from SAP table BGRFC_CUST_I_SRV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BGRFC_CUST_I_SRV
*  INTO TABLE @DATA(IT_BGRFC_CUST_I_SRV2).
*--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_BGRFC_CUST_I_SRV INDEX 1 INTO DATA(WA_BGRFC_CUST_I_SRV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BGRFC_CUST_I_SRV>-DP_SERVER_NAME = 1.
<BGRFC_CUST_I_SRV>-RFC_SERVER_NAME = 1.
<BGRFC_CUST_I_SRV>-SCHEDULER_CNT = 1.
<BGRFC_CUST_I_SRV>-TASK_CNT_MAX = 1.
<BGRFC_CUST_I_SRV>-GW_RESOURCES = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BGRFC_CUST_I_SRV-IDLE_TIME, sy-vline,
  WA_BGRFC_CUST_I_SRV-LB_EXP_TIME, sy-vline,
  WA_BGRFC_CUST_I_SRV-DEST_CNT_MAX, sy-vline,
  WA_BGRFC_CUST_I_SRV-ORIG_USER, sy-vline,
  WA_BGRFC_CUST_I_SRV-ORIG_CLIENT, sy-vline,
  WA_BGRFC_CUST_I_SRV-ORIG_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BGRFC_CUST_I_SRV 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_BGRFC_CUST_I_SRV 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_BGRFC_CUST_I_SRV INTO WA_BGRFC_CUST_I_SRV.


*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_BGRFC_CUST_I_SRV_STR, 
DP_SERVER_NAME TYPE STRING,
RFC_SERVER_NAME TYPE STRING,
SCHEDULER_CNT TYPE STRING,
TASK_CNT_MAX TYPE STRING,
GW_RESOURCES TYPE STRING,
IDLE_TIME TYPE STRING,
LB_EXP_TIME TYPE STRING,
DEST_CNT_MAX TYPE STRING,
ORIG_USER TYPE STRING,
ORIG_CLIENT TYPE STRING,
ORIG_DATE TYPE STRING,
ORIG_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BGRFC_CUST_I_SRV_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_BGRFC_CUST_I_SRV_STR-DP_SERVER_NAME sy-vline 
WA_BGRFC_CUST_I_SRV_STR-RFC_SERVER_NAME sy-vline 
WA_BGRFC_CUST_I_SRV_STR-SCHEDULER_CNT sy-vline 
WA_BGRFC_CUST_I_SRV_STR-TASK_CNT_MAX sy-vline 
WA_BGRFC_CUST_I_SRV_STR-GW_RESOURCES sy-vline 
WA_BGRFC_CUST_I_SRV_STR-IDLE_TIME sy-vline 
WA_BGRFC_CUST_I_SRV_STR-LB_EXP_TIME sy-vline 
WA_BGRFC_CUST_I_SRV_STR-DEST_CNT_MAX sy-vline 
WA_BGRFC_CUST_I_SRV_STR-ORIG_USER sy-vline 
WA_BGRFC_CUST_I_SRV_STR-ORIG_CLIENT sy-vline 
WA_BGRFC_CUST_I_SRV_STR-ORIG_DATE sy-vline 
WA_BGRFC_CUST_I_SRV_STR-ORIG_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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