ABAP Select data from SAP table MIG_BUS_EI_COMMUNICATION into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MIG_BUS_EI_COMMUNICATION
*  INTO TABLE @DATA(IT_MIG_BUS_EI_COMMUNICATION2).
*--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_MIG_BUS_EI_COMMUNICATION INDEX 1 INTO DATA(WA_MIG_BUS_EI_COMMUNICATION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MIG_BUS_EI_COMMUNICATION>-PHONE = 1.
<MIG_BUS_EI_COMMUNICATION>-FAX = 1.
<MIG_BUS_EI_COMMUNICATION>-TTX = 1.
<MIG_BUS_EI_COMMUNICATION>-TLX = 1.
<MIG_BUS_EI_COMMUNICATION>-SMTP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MIG_BUS_EI_COMMUNICATION-RML, sy-vline,
  WA_MIG_BUS_EI_COMMUNICATION-X400, sy-vline,
  WA_MIG_BUS_EI_COMMUNICATION-RFC, sy-vline,
  WA_MIG_BUS_EI_COMMUNICATION-PRT, sy-vline,
  WA_MIG_BUS_EI_COMMUNICATION-SSF, sy-vline,
  WA_MIG_BUS_EI_COMMUNICATION-URI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MIG_BUS_EI_COMMUNICATION 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_MIG_BUS_EI_COMMUNICATION 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_MIG_BUS_EI_COMMUNICATION INTO WA_MIG_BUS_EI_COMMUNICATION.


*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_MIG_BUS_EI_COMMUNICATION_STR, 
PHONE TYPE STRING,
FAX TYPE STRING,
TTX TYPE STRING,
TLX TYPE STRING,
SMTP TYPE STRING,
RML TYPE STRING,
X400 TYPE STRING,
RFC TYPE STRING,
PRT TYPE STRING,
SSF TYPE STRING,
URI TYPE STRING,
PAGER TYPE STRING,
TIME_DEPENDENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MIG_BUS_EI_COMMUNICATION_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_MIG_BUS_EI_COMMUNICATION_STR-PHONE sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-FAX sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-TTX sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-TLX sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-SMTP sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-RML sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-X400 sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-RFC sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-PRT sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-SSF sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-URI sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-PAGER sy-vline 
WA_MIG_BUS_EI_COMMUNICATION_STR-TIME_DEPENDENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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