ABAP Select data from SAP table WLBWEXPQR1 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WLBWEXPQR1 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 WLBWEXPQR1. 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 WLBWEXPQR1 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_WLBWEXPQR1 TYPE STANDARD TABLE OF WLBWEXPQR1,
      WA_WLBWEXPQR1 TYPE WLBWEXPQR1,
      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: <WLBWEXPQR1> TYPE WLBWEXPQR1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_WLBWEXPQR1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM WLBWEXPQR1
  INTO TABLE IT_WLBWEXPQR1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WLBWEXPQR1
*  INTO TABLE @DATA(IT_WLBWEXPQR12).
*--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_WLBWEXPQR1 INDEX 1 INTO DATA(WA_WLBWEXPQR12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_WLBWEXPQR1 ASSIGNING <WLBWEXPQR1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WLBWEXPQR1>-TEMPLATE = 1.
<WLBWEXPQR1>-INFOCUBE = 1.
<WLBWEXPQR1>-QUERYID = 1.
<WLBWEXPQR1>-NAVSTEP = 1.
<WLBWEXPQR1>-TIMETOTAL = 1.

ENDLOOP.

LOOP AT IT_WLBWEXPQR1 INTO WA_WLBWEXPQR1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WLBWEXPQR1-PCTTIMOLAP, sy-vline,
  WA_WLBWEXPQR1-PCTTIMEDB, sy-vline,
  WA_WLBWEXPQR1-PCTTIMECLI, sy-vline,
  WA_WLBWEXPQR1-PCTTIMPLAN, sy-vline,
  WA_WLBWEXPQR1-PCTTIMNA, sy-vline,
  WA_WLBWEXPQR1-TIMEOLAPIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WLBWEXPQR1 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_WLBWEXPQR1 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_WLBWEXPQR1 INTO WA_WLBWEXPQR1.


*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_WLBWEXPQR1_STR, 
TEMPLATE TYPE STRING,
INFOCUBE TYPE STRING,
QUERYID TYPE STRING,
NAVSTEP TYPE STRING,
TIMETOTAL TYPE STRING,
PCTTIMOLAP TYPE STRING,
PCTTIMEDB TYPE STRING,
PCTTIMECLI TYPE STRING,
PCTTIMPLAN TYPE STRING,
PCTTIMNA TYPE STRING,
TIMEOLAPIN TYPE STRING,
TIMEOLAP TYPE STRING,
TIMEDB TYPE STRING,
TIMECLIENT TYPE STRING,
TIMEPLAN TYPE STRING,
TIME_NA TYPE STRING,
DISPLEVEL1 TYPE STRING,
DISPLEVEL2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WLBWEXPQR1_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_WLBWEXPQR1_STR-TEMPLATE sy-vline 
WA_WLBWEXPQR1_STR-INFOCUBE sy-vline 
WA_WLBWEXPQR1_STR-QUERYID sy-vline 
WA_WLBWEXPQR1_STR-NAVSTEP sy-vline 
WA_WLBWEXPQR1_STR-TIMETOTAL sy-vline 
WA_WLBWEXPQR1_STR-PCTTIMOLAP sy-vline 
WA_WLBWEXPQR1_STR-PCTTIMEDB sy-vline 
WA_WLBWEXPQR1_STR-PCTTIMECLI sy-vline 
WA_WLBWEXPQR1_STR-PCTTIMPLAN sy-vline 
WA_WLBWEXPQR1_STR-PCTTIMNA sy-vline 
WA_WLBWEXPQR1_STR-TIMEOLAPIN sy-vline 
WA_WLBWEXPQR1_STR-TIMEOLAP sy-vline 
WA_WLBWEXPQR1_STR-TIMEDB sy-vline 
WA_WLBWEXPQR1_STR-TIMECLIENT sy-vline 
WA_WLBWEXPQR1_STR-TIMEPLAN sy-vline 
WA_WLBWEXPQR1_STR-TIME_NA sy-vline 
WA_WLBWEXPQR1_STR-DISPLEVEL1 sy-vline 
WA_WLBWEXPQR1_STR-DISPLEVEL2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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