ABAP Select data from SAP table MSQSYSJOBS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSQSYSJOBS
*  INTO TABLE @DATA(IT_MSQSYSJOBS2).
*--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_MSQSYSJOBS INDEX 1 INTO DATA(WA_MSQSYSJOBS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSQSYSJOBS>-JOBID = 1.
<MSQSYSJOBS>-ORISERVER = 1.
<MSQSYSJOBS>-JOBNAME = 1.
<MSQSYSJOBS>-ENABLED = 1.
<MSQSYSJOBS>-JOBDESC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSQSYSJOBS-STASTEPID, sy-vline,
  WA_MSQSYSJOBS-CATEGORY, sy-vline,
  WA_MSQSYSJOBS-OWNERSID, sy-vline,
  WA_MSQSYSJOBS-NOTEVTLOG, sy-vline,
  WA_MSQSYSJOBS-NOTEMAIL, sy-vline,
  WA_MSQSYSJOBS-NOTNETSEND, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSQSYSJOBS 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_MSQSYSJOBS 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_MSQSYSJOBS INTO WA_MSQSYSJOBS.


*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_MSQSYSJOBS_STR, 
JOBID TYPE STRING,
ORISERVER TYPE STRING,
JOBNAME TYPE STRING,
ENABLED TYPE STRING,
JOBDESC TYPE STRING,
STASTEPID TYPE STRING,
CATEGORY TYPE STRING,
OWNERSID TYPE STRING,
NOTEVTLOG TYPE STRING,
NOTEMAIL TYPE STRING,
NOTNETSEND TYPE STRING,
NOTPAGE TYPE STRING,
EMAILOPID TYPE STRING,
NETSNDOPID TYPE STRING,
PAGEOPID TYPE STRING,
DELETELEV TYPE STRING,
DATECRE TYPE STRING,
DATEMOD TYPE STRING,
VERNUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSQSYSJOBS_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_MSQSYSJOBS_STR-JOBID sy-vline 
WA_MSQSYSJOBS_STR-ORISERVER sy-vline 
WA_MSQSYSJOBS_STR-JOBNAME sy-vline 
WA_MSQSYSJOBS_STR-ENABLED sy-vline 
WA_MSQSYSJOBS_STR-JOBDESC sy-vline 
WA_MSQSYSJOBS_STR-STASTEPID sy-vline 
WA_MSQSYSJOBS_STR-CATEGORY sy-vline 
WA_MSQSYSJOBS_STR-OWNERSID sy-vline 
WA_MSQSYSJOBS_STR-NOTEVTLOG sy-vline 
WA_MSQSYSJOBS_STR-NOTEMAIL sy-vline 
WA_MSQSYSJOBS_STR-NOTNETSEND sy-vline 
WA_MSQSYSJOBS_STR-NOTPAGE sy-vline 
WA_MSQSYSJOBS_STR-EMAILOPID sy-vline 
WA_MSQSYSJOBS_STR-NETSNDOPID sy-vline 
WA_MSQSYSJOBS_STR-PAGEOPID sy-vline 
WA_MSQSYSJOBS_STR-DELETELEV sy-vline 
WA_MSQSYSJOBS_STR-DATECRE sy-vline 
WA_MSQSYSJOBS_STR-DATEMOD sy-vline 
WA_MSQSYSJOBS_STR-VERNUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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