ABAP Select data from SAP table CCMSESSION 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 CCMSESSION 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 CCMSESSION. 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 CCMSESSION 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_CCMSESSION TYPE STANDARD TABLE OF CCMSESSION,
      WA_CCMSESSION TYPE CCMSESSION,
      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: <CCMSESSION> TYPE CCMSESSION.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCMSESSION
*  INTO TABLE @DATA(IT_CCMSESSION2).
*--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_CCMSESSION INDEX 1 INTO DATA(WA_CCMSESSION2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCMSESSION>-MANDT = 1.
<CCMSESSION>-SESSIONID = 1.
<CCMSESSION>-AGENT = 1.
<CCMSESSION>-LOGINDATE = 1.
<CCMSESSION>-LOGINTIME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCMSESSION-SAPMODE, sy-vline,
  WA_CCMSESSION-IPADDR, sy-vline,
  WA_CCMSESSION-APPSERVER, sy-vline,
  WA_CCMSESSION-OBJID1, sy-vline,
  WA_CCMSESSION-OBJID2, sy-vline,
  WA_CCMSESSION-OBJID3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CCMSESSION 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_CCMSESSION 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_CCMSESSION INTO WA_CCMSESSION.


*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_CCMSESSION_STR, 
MANDT TYPE STRING,
SESSIONID TYPE STRING,
AGENT TYPE STRING,
LOGINDATE TYPE STRING,
LOGINTIME TYPE STRING,
SAPMODE TYPE STRING,
IPADDR TYPE STRING,
APPSERVER TYPE STRING,
OBJID1 TYPE STRING,
OBJID2 TYPE STRING,
OBJID3 TYPE STRING,
OBJID4 TYPE STRING,
OBJID5 TYPE STRING,
OBJID6 TYPE STRING,
OBJID7 TYPE STRING,
OBJID8 TYPE STRING,
OBJID9 TYPE STRING,
OBJID10 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCMSESSION_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_CCMSESSION_STR-MANDT sy-vline 
WA_CCMSESSION_STR-SESSIONID sy-vline 
WA_CCMSESSION_STR-AGENT sy-vline 
WA_CCMSESSION_STR-LOGINDATE sy-vline 
WA_CCMSESSION_STR-LOGINTIME sy-vline 
WA_CCMSESSION_STR-SAPMODE sy-vline 
WA_CCMSESSION_STR-IPADDR sy-vline 
WA_CCMSESSION_STR-APPSERVER sy-vline 
WA_CCMSESSION_STR-OBJID1 sy-vline 
WA_CCMSESSION_STR-OBJID2 sy-vline 
WA_CCMSESSION_STR-OBJID3 sy-vline 
WA_CCMSESSION_STR-OBJID4 sy-vline 
WA_CCMSESSION_STR-OBJID5 sy-vline 
WA_CCMSESSION_STR-OBJID6 sy-vline 
WA_CCMSESSION_STR-OBJID7 sy-vline 
WA_CCMSESSION_STR-OBJID8 sy-vline 
WA_CCMSESSION_STR-OBJID9 sy-vline 
WA_CCMSESSION_STR-OBJID10 sy-vline      INTO ld_text SEPARATED BY SPACE.

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