ABAP Select data from SAP table BDLWLSUMRY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BDLWLSUMRY
*  INTO TABLE @DATA(IT_BDLWLSUMRY2).
*--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_BDLWLSUMRY INDEX 1 INTO DATA(WA_BDLWLSUMRY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BDLWLSUMRY>-HOSTID = 1.
<BDLWLSUMRY>-DATE = 1.
<BDLWLSUMRY>-TASKTYPE = 1.
<BDLWLSUMRY>-FIRSTRECTI = 1.
<BDLWLSUMRY>-FIRSTRECDY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BDLWLSUMRY-LASTRECTI, sy-vline,
  WA_BDLWLSUMRY-LASTRECDY, sy-vline,
  WA_BDLWLSUMRY-COUNT, sy-vline,
  WA_BDLWLSUMRY-DBACTIVCNT, sy-vline,
  WA_BDLWLSUMRY-QUEUELIMIT, sy-vline,
  WA_BDLWLSUMRY-ELAPSEDTI, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BDLWLSUMRY 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_BDLWLSUMRY 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_BDLWLSUMRY INTO WA_BDLWLSUMRY.


*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_BDLWLSUMRY_STR, 
HOSTID TYPE STRING,
DATE TYPE STRING,
TASKTYPE TYPE STRING,
FIRSTRECTI TYPE STRING,
FIRSTRECDY TYPE STRING,
LASTRECTI TYPE STRING,
LASTRECDY TYPE STRING,
COUNT TYPE STRING,
DBACTIVCNT TYPE STRING,
QUEUELIMIT TYPE STRING,
ELAPSEDTI TYPE STRING,
RESPTI TYPE STRING,
CPUTI TYPE STRING,
QUEUETI TYPE STRING,
LOADGENTI TYPE STRING,
COMMITTI TYPE STRING,
DDICTI TYPE STRING,
QUETI TYPE STRING,
CPICTI TYPE STRING,
MCODETI TYPE STRING,
ROLLINCNT TYPE STRING,
ROLLINSTEP TYPE STRING,
ROLLINTI TYPE STRING,
ROLLOUTCNT TYPE STRING,
ROLLOUTSTP TYPE STRING,
ROLLOUTTI TYPE STRING,
ROLLSTEP TYPE STRING,
ROLLWAITTI TYPE STRING,
ROLLTI TYPE STRING,
READDIRCNT TYPE STRING,
READDIRTI TYPE STRING,
READDIRBUF TYPE STRING,
READDIRREC TYPE STRING,
READSEQCNT TYPE STRING,
READSEQTI TYPE STRING,
READSEQBUF TYPE STRING,
READSEQREC TYPE STRING,
CHNGCNT TYPE STRING,
CHNGTI TYPE STRING,
CHNGREC TYPE STRING,
PHYREADCNT TYPE STRING,
PHYCHNGREC TYPE STRING,
MCREADCNT TYPE STRING,
MCCHNGCNT TYPE STRING,
PHYCALLS TYPE STRING,
BYTES TYPE STRING,
LOCKTI TYPE STRING,
CNT001 TYPE STRING,
CNT002 TYPE STRING,
CNT003 TYPE STRING,
CNT004 TYPE STRING,
CNT005 TYPE STRING,
CNT006 TYPE STRING,
CNT007 TYPE STRING,
CNT008 TYPE STRING,
CNT009 TYPE STRING,
GUITIME TYPE STRING,
GUICNT TYPE STRING,
GUINETTIME TYPE STRING,
DBP_COUNT TYPE STRING,
DBP_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BDLWLSUMRY_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_BDLWLSUMRY_STR-HOSTID sy-vline 
WA_BDLWLSUMRY_STR-DATE sy-vline 
WA_BDLWLSUMRY_STR-TASKTYPE sy-vline 
WA_BDLWLSUMRY_STR-FIRSTRECTI sy-vline 
WA_BDLWLSUMRY_STR-FIRSTRECDY sy-vline 
WA_BDLWLSUMRY_STR-LASTRECTI sy-vline 
WA_BDLWLSUMRY_STR-LASTRECDY sy-vline 
WA_BDLWLSUMRY_STR-COUNT sy-vline 
WA_BDLWLSUMRY_STR-DBACTIVCNT sy-vline 
WA_BDLWLSUMRY_STR-QUEUELIMIT sy-vline 
WA_BDLWLSUMRY_STR-ELAPSEDTI sy-vline 
WA_BDLWLSUMRY_STR-RESPTI sy-vline 
WA_BDLWLSUMRY_STR-CPUTI sy-vline 
WA_BDLWLSUMRY_STR-QUEUETI sy-vline 
WA_BDLWLSUMRY_STR-LOADGENTI sy-vline 
WA_BDLWLSUMRY_STR-COMMITTI sy-vline 
WA_BDLWLSUMRY_STR-DDICTI sy-vline 
WA_BDLWLSUMRY_STR-QUETI sy-vline 
WA_BDLWLSUMRY_STR-CPICTI sy-vline 
WA_BDLWLSUMRY_STR-MCODETI sy-vline 
WA_BDLWLSUMRY_STR-ROLLINCNT sy-vline 
WA_BDLWLSUMRY_STR-ROLLINSTEP sy-vline 
WA_BDLWLSUMRY_STR-ROLLINTI sy-vline 
WA_BDLWLSUMRY_STR-ROLLOUTCNT sy-vline 
WA_BDLWLSUMRY_STR-ROLLOUTSTP sy-vline 
WA_BDLWLSUMRY_STR-ROLLOUTTI sy-vline 
WA_BDLWLSUMRY_STR-ROLLSTEP sy-vline 
WA_BDLWLSUMRY_STR-ROLLWAITTI sy-vline 
WA_BDLWLSUMRY_STR-ROLLTI sy-vline 
WA_BDLWLSUMRY_STR-READDIRCNT sy-vline 
WA_BDLWLSUMRY_STR-READDIRTI sy-vline 
WA_BDLWLSUMRY_STR-READDIRBUF sy-vline 
WA_BDLWLSUMRY_STR-READDIRREC sy-vline 
WA_BDLWLSUMRY_STR-READSEQCNT sy-vline 
WA_BDLWLSUMRY_STR-READSEQTI sy-vline 
WA_BDLWLSUMRY_STR-READSEQBUF sy-vline 
WA_BDLWLSUMRY_STR-READSEQREC sy-vline 
WA_BDLWLSUMRY_STR-CHNGCNT sy-vline 
WA_BDLWLSUMRY_STR-CHNGTI sy-vline 
WA_BDLWLSUMRY_STR-CHNGREC sy-vline 
WA_BDLWLSUMRY_STR-PHYREADCNT sy-vline 
WA_BDLWLSUMRY_STR-PHYCHNGREC sy-vline 
WA_BDLWLSUMRY_STR-MCREADCNT sy-vline 
WA_BDLWLSUMRY_STR-MCCHNGCNT sy-vline 
WA_BDLWLSUMRY_STR-PHYCALLS sy-vline 
WA_BDLWLSUMRY_STR-BYTES sy-vline 
WA_BDLWLSUMRY_STR-LOCKTI sy-vline 
WA_BDLWLSUMRY_STR-CNT001 sy-vline 
WA_BDLWLSUMRY_STR-CNT002 sy-vline 
WA_BDLWLSUMRY_STR-CNT003 sy-vline 
WA_BDLWLSUMRY_STR-CNT004 sy-vline 
WA_BDLWLSUMRY_STR-CNT005 sy-vline 
WA_BDLWLSUMRY_STR-CNT006 sy-vline 
WA_BDLWLSUMRY_STR-CNT007 sy-vline 
WA_BDLWLSUMRY_STR-CNT008 sy-vline 
WA_BDLWLSUMRY_STR-CNT009 sy-vline 
WA_BDLWLSUMRY_STR-GUITIME sy-vline 
WA_BDLWLSUMRY_STR-GUICNT sy-vline 
WA_BDLWLSUMRY_STR-GUINETTIME sy-vline 
WA_BDLWLSUMRY_STR-DBP_COUNT sy-vline 
WA_BDLWLSUMRY_STR-DBP_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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