ABAP Select data from SAP table AGENTINFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AGENTINFO
*  INTO TABLE @DATA(IT_AGENTINFO2).
*--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_AGENTINFO INDEX 1 INTO DATA(WA_AGENTINFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AGENTINFO>-AUTOSTART = 1.
<AGENTINFO>-MSXSERNAME = 1.
<AGENTINFO>-SQLAGETYPE = 1.
<AGENTINFO>-STARTUPACC = 1.
<AGENTINFO>-RESTART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AGENTINFO-MAXROWS, sy-vline,
  WA_AGENTINFO-MAXROWJOB, sy-vline,
  WA_AGENTINFO-ERRLOGFILE, sy-vline,
  WA_AGENTINFO-ERRLOGLEV, sy-vline,
  WA_AGENTINFO-ERRRECIP, sy-vline,
  WA_AGENTINFO-MONAUTOST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AGENTINFO 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_AGENTINFO 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_AGENTINFO INTO WA_AGENTINFO.


*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_AGENTINFO_STR, 
AUTOSTART TYPE STRING,
MSXSERNAME TYPE STRING,
SQLAGETYPE TYPE STRING,
STARTUPACC TYPE STRING,
RESTART TYPE STRING,
MAXROWS TYPE STRING,
MAXROWJOB TYPE STRING,
ERRLOGFILE TYPE STRING,
ERRLOGLEV TYPE STRING,
ERRRECIP TYPE STRING,
MONAUTOST TYPE STRING,
LOCHOSTSVR TYPE STRING,
JOBSHUTDOW TYPE STRING,
CMDEXECACC TYPE STRING,
REGCONNECT TYPE STRING,
HOSTLOGIN TYPE STRING,
HOSTLOGPWD TYPE STRING,
LOGINTMOUT TYPE STRING,
IDLECPUPER TYPE STRING,
IDLECPUDUR TYPE STRING,
OEMERRORLG TYPE STRING,
SYSADMIN TYPE STRING,
EMAILPROF TYPE STRING,
EMAILSENDF TYPE STRING,
CPUPOLLENA TYPE STRING,
ALREPRUNTOKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AGENTINFO_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_AGENTINFO_STR-AUTOSTART sy-vline 
WA_AGENTINFO_STR-MSXSERNAME sy-vline 
WA_AGENTINFO_STR-SQLAGETYPE sy-vline 
WA_AGENTINFO_STR-STARTUPACC sy-vline 
WA_AGENTINFO_STR-RESTART sy-vline 
WA_AGENTINFO_STR-MAXROWS sy-vline 
WA_AGENTINFO_STR-MAXROWJOB sy-vline 
WA_AGENTINFO_STR-ERRLOGFILE sy-vline 
WA_AGENTINFO_STR-ERRLOGLEV sy-vline 
WA_AGENTINFO_STR-ERRRECIP sy-vline 
WA_AGENTINFO_STR-MONAUTOST sy-vline 
WA_AGENTINFO_STR-LOCHOSTSVR sy-vline 
WA_AGENTINFO_STR-JOBSHUTDOW sy-vline 
WA_AGENTINFO_STR-CMDEXECACC sy-vline 
WA_AGENTINFO_STR-REGCONNECT sy-vline 
WA_AGENTINFO_STR-HOSTLOGIN sy-vline 
WA_AGENTINFO_STR-HOSTLOGPWD sy-vline 
WA_AGENTINFO_STR-LOGINTMOUT sy-vline 
WA_AGENTINFO_STR-IDLECPUPER sy-vline 
WA_AGENTINFO_STR-IDLECPUDUR sy-vline 
WA_AGENTINFO_STR-OEMERRORLG sy-vline 
WA_AGENTINFO_STR-SYSADMIN sy-vline 
WA_AGENTINFO_STR-EMAILPROF sy-vline 
WA_AGENTINFO_STR-EMAILSENDF sy-vline 
WA_AGENTINFO_STR-CPUPOLLENA sy-vline 
WA_AGENTINFO_STR-ALREPRUNTOKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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