ABAP Select data from SAP table MSQBLOPROS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MSQBLOPROS
*  INTO TABLE @DATA(IT_MSQBLOPROS2).
*--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_MSQBLOPROS INDEX 1 INTO DATA(WA_MSQBLOPROS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MSQBLOPROS>-REQSPID = 1.
<MSQBLOPROS>-OBJECTNAME = 1.
<MSQBLOPROS>-LOCKNAME = 1.
<MSQBLOPROS>-KPID = 1.
<MSQBLOPROS>-BLOCKEDBY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MSQBLOPROS-LCKRSC, sy-vline,
  WA_MSQBLOPROS-DBNAME, sy-vline,
  WA_MSQBLOPROS-LCKTYPE, sy-vline,
  WA_MSQBLOPROS-LCKBIN, sy-vline,
  WA_MSQBLOPROS-LCKVALBLK, sy-vline,
  WA_MSQBLOPROS-INDNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MSQBLOPROS 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_MSQBLOPROS 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_MSQBLOPROS INTO WA_MSQBLOPROS.


*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_MSQBLOPROS_STR, 
REQSPID TYPE STRING,
OBJECTNAME TYPE STRING,
LOCKNAME TYPE STRING,
KPID TYPE STRING,
BLOCKEDBY TYPE STRING,
LCKRSC TYPE STRING,
DBNAME TYPE STRING,
LCKTYPE TYPE STRING,
LCKBIN TYPE STRING,
LCKVALBLK TYPE STRING,
INDNAME TYPE STRING,
LCKSTATUS TYPE STRING,
LCKREFCNT TYPE STRING,
LCKCARCNT TYPE STRING,
LCKLFETIME TYPE STRING,
ECID TYPE STRING,
LCKOWNER TYPE STRING,
PROSSTAT TYPE STRING,
PROSUSER TYPE STRING,
HOSTNAME TYPE STRING,
PROGNAME TYPE STRING,
WAITTYPE TYPE STRING,
EXECCMD TYPE STRING,
HOSTPROS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MSQBLOPROS_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_MSQBLOPROS_STR-REQSPID sy-vline 
WA_MSQBLOPROS_STR-OBJECTNAME sy-vline 
WA_MSQBLOPROS_STR-LOCKNAME sy-vline 
WA_MSQBLOPROS_STR-KPID sy-vline 
WA_MSQBLOPROS_STR-BLOCKEDBY sy-vline 
WA_MSQBLOPROS_STR-LCKRSC sy-vline 
WA_MSQBLOPROS_STR-DBNAME sy-vline 
WA_MSQBLOPROS_STR-LCKTYPE sy-vline 
WA_MSQBLOPROS_STR-LCKBIN sy-vline 
WA_MSQBLOPROS_STR-LCKVALBLK sy-vline 
WA_MSQBLOPROS_STR-INDNAME sy-vline 
WA_MSQBLOPROS_STR-LCKSTATUS sy-vline 
WA_MSQBLOPROS_STR-LCKREFCNT sy-vline 
WA_MSQBLOPROS_STR-LCKCARCNT sy-vline 
WA_MSQBLOPROS_STR-LCKLFETIME sy-vline 
WA_MSQBLOPROS_STR-ECID sy-vline 
WA_MSQBLOPROS_STR-LCKOWNER sy-vline 
WA_MSQBLOPROS_STR-PROSSTAT sy-vline 
WA_MSQBLOPROS_STR-PROSUSER sy-vline 
WA_MSQBLOPROS_STR-HOSTNAME sy-vline 
WA_MSQBLOPROS_STR-PROGNAME sy-vline 
WA_MSQBLOPROS_STR-WAITTYPE sy-vline 
WA_MSQBLOPROS_STR-EXECCMD sy-vline 
WA_MSQBLOPROS_STR-HOSTPROS sy-vline      INTO ld_text SEPARATED BY SPACE.

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