ABAP Select data from SAP table DB6PMSQ_DBS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DB6PMSQ_DBS 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 DB6PMSQ_DBS. 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 DB6PMSQ_DBS 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_DB6PMSQ_DBS TYPE STANDARD TABLE OF DB6PMSQ_DBS,
      WA_DB6PMSQ_DBS TYPE DB6PMSQ_DBS,
      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: <DB6PMSQ_DBS> TYPE DB6PMSQ_DBS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DB6PMSQ_DBS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DB6PMSQ_DBS
  INTO TABLE IT_DB6PMSQ_DBS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DB6PMSQ_DBS
*  INTO TABLE @DATA(IT_DB6PMSQ_DBS2).
*--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_DB6PMSQ_DBS INDEX 1 INTO DATA(WA_DB6PMSQ_DBS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DB6PMSQ_DBS ASSIGNING <DB6PMSQ_DBS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DB6PMSQ_DBS>-SYSID = 1.
<DB6PMSQ_DBS>-COMPTIME = 1.
<DB6PMSQ_DBS>-PARTITN = 1.
<DB6PMSQ_DBS>-ARTIF_KEY = 1.
<DB6PMSQ_DBS>-CALLERFLAG = 1.

ENDLOOP.

LOOP AT IT_DB6PMSQ_DBS INTO WA_DB6PMSQ_DBS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DB6PMSQ_DBS-DBMSTRTTME, sy-vline,
  WA_DB6PMSQ_DBS-PRGVERS, sy-vline,
  WA_DB6PMSQ_DBS-NUM_EXECUT, sy-vline,
  WA_DB6PMSQ_DBS-NUM_COMPIL, sy-vline,
  WA_DB6PMSQ_DBS-PREPTWORST, sy-vline,
  WA_DB6PMSQ_DBS-PREPTBEST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DB6PMSQ_DBS 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_DB6PMSQ_DBS 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_DB6PMSQ_DBS INTO WA_DB6PMSQ_DBS.


*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_DB6PMSQ_DBS_STR, 
SYSID TYPE STRING,
COMPTIME TYPE STRING,
PARTITN TYPE STRING,
ARTIF_KEY TYPE STRING,
CALLERFLAG TYPE STRING,
DBMSTRTTME TYPE STRING,
PRGVERS TYPE STRING,
NUM_EXECUT TYPE STRING,
NUM_COMPIL TYPE STRING,
PREPTWORST TYPE STRING,
PREPTBEST TYPE STRING,
INT_RW_DEL TYPE STRING,
INT_RW_INS TYPE STRING,
RW_READ TYPE STRING,
INT_RW_UPD TYPE STRING,
RW_WRITTEN TYPE STRING,
STMT_SORTS TYPE STRING,
TOTEXETS TYPE STRING,
TOTEXETMS TYPE STRING,
TOTUSRCTS TYPE STRING,
TOTUSRCTMS TYPE STRING,
TOTSYSCTS TYPE STRING,
TOTSYSCTMS TYPE STRING,
DB_NAME TYPE STRING,
PL_D_LRS TYPE STRING,
PL_D_PRS TYPE STRING,
PL_I_LRS TYPE STRING,
PL_I_PRS TYPE STRING,
PL_TD_LRS TYPE STRING,
PL_TD_PRS TYPE STRING,
PL_TI_LRS TYPE STRING,
PL_TI_PRS TYPE STRING,
SORT_OVERFLOWS TYPE STRING,
TOTAL_SORT_TIME TYPE STRING,
PL_XDA_LRS TYPE STRING,
PL_XDA_PRS TYPE STRING,
PL_TEMP_XDA_LRS TYPE STRING,
PL_TEMP_XDA_PRS TYPE STRING,
STATS_FABRICATE_ TYPE STRING,
SYNC_RUNSTATS_TI TYPE STRING,
ROWS_RETURNED TYPE STRING,
STMT_PKGCACHE_ID TYPE STRING,
INSERT_TIMESTAMP TYPE STRING,
STMT_LEN TYPE STRING,
STMT_TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DB6PMSQ_DBS_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_DB6PMSQ_DBS_STR-SYSID sy-vline 
WA_DB6PMSQ_DBS_STR-COMPTIME sy-vline 
WA_DB6PMSQ_DBS_STR-PARTITN sy-vline 
WA_DB6PMSQ_DBS_STR-ARTIF_KEY sy-vline 
WA_DB6PMSQ_DBS_STR-CALLERFLAG sy-vline 
WA_DB6PMSQ_DBS_STR-DBMSTRTTME sy-vline 
WA_DB6PMSQ_DBS_STR-PRGVERS sy-vline 
WA_DB6PMSQ_DBS_STR-NUM_EXECUT sy-vline 
WA_DB6PMSQ_DBS_STR-NUM_COMPIL sy-vline 
WA_DB6PMSQ_DBS_STR-PREPTWORST sy-vline 
WA_DB6PMSQ_DBS_STR-PREPTBEST sy-vline 
WA_DB6PMSQ_DBS_STR-INT_RW_DEL sy-vline 
WA_DB6PMSQ_DBS_STR-INT_RW_INS sy-vline 
WA_DB6PMSQ_DBS_STR-RW_READ sy-vline 
WA_DB6PMSQ_DBS_STR-INT_RW_UPD sy-vline 
WA_DB6PMSQ_DBS_STR-RW_WRITTEN sy-vline 
WA_DB6PMSQ_DBS_STR-STMT_SORTS sy-vline 
WA_DB6PMSQ_DBS_STR-TOTEXETS sy-vline 
WA_DB6PMSQ_DBS_STR-TOTEXETMS sy-vline 
WA_DB6PMSQ_DBS_STR-TOTUSRCTS sy-vline 
WA_DB6PMSQ_DBS_STR-TOTUSRCTMS sy-vline 
WA_DB6PMSQ_DBS_STR-TOTSYSCTS sy-vline 
WA_DB6PMSQ_DBS_STR-TOTSYSCTMS sy-vline 
WA_DB6PMSQ_DBS_STR-DB_NAME sy-vline 
WA_DB6PMSQ_DBS_STR-PL_D_LRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_D_PRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_I_LRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_I_PRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_TD_LRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_TD_PRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_TI_LRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_TI_PRS sy-vline 
WA_DB6PMSQ_DBS_STR-SORT_OVERFLOWS sy-vline 
WA_DB6PMSQ_DBS_STR-TOTAL_SORT_TIME sy-vline 
WA_DB6PMSQ_DBS_STR-PL_XDA_LRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_XDA_PRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_TEMP_XDA_LRS sy-vline 
WA_DB6PMSQ_DBS_STR-PL_TEMP_XDA_PRS sy-vline 
WA_DB6PMSQ_DBS_STR-STATS_FABRICATE_ sy-vline 
WA_DB6PMSQ_DBS_STR-SYNC_RUNSTATS_TI sy-vline 
WA_DB6PMSQ_DBS_STR-ROWS_RETURNED sy-vline 
WA_DB6PMSQ_DBS_STR-STMT_PKGCACHE_ID sy-vline 
WA_DB6PMSQ_DBS_STR-INSERT_TIMESTAMP sy-vline 
WA_DB6PMSQ_DBS_STR-STMT_LEN sy-vline 
WA_DB6PMSQ_DBS_STR-STMT_TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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