ABAP Select data from SAP table URBWLG into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM URBWLG
*  INTO TABLE @DATA(IT_URBWLG2).
*--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_URBWLG INDEX 1 INTO DATA(WA_URBWLG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<URBWLG>-DSOURCE = 1.
<URBWLG>-SYSID = 1.
<URBWLG>-MANDT = 1.
<URBWLG>-TRANSTRUC = 1.
<URBWLG>-REPSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_URBWLG-APPLCLASS, sy-vline,
  WA_URBWLG-TABNAME, sy-vline,
  WA_URBWLG-AEDAT, sy-vline,
  WA_URBWLG-AETIM, sy-vline,
  WA_URBWLG-AENAM, sy-vline,
  WA_URBWLG-IU_SDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_URBWLG 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_URBWLG 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_URBWLG INTO WA_URBWLG.


*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.

*Conversion exit ALPHA, internal->external for field CHGRUN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_URBWLG-CHGRUN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_URBWLG-CHGRUN.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_URBWLG_STR, 
DSOURCE TYPE STRING,
SYSID TYPE STRING,
MANDT TYPE STRING,
TRANSTRUC TYPE STRING,
REPSTATUS TYPE STRING,
APPLCLASS TYPE STRING,
TABNAME TYPE STRING,
AEDAT TYPE STRING,
AETIM TYPE STRING,
AENAM TYPE STRING,
IU_SDATE TYPE STRING,
IU_STIME TYPE STRING,
IU_EDATE TYPE STRING,
IU_ETIME TYPE STRING,
IU_TS TYPE STRING,
IU_NRREAD TYPE STRING,
IU_NRSENT TYPE STRING,
DU_ANZAHL TYPE STRING,
DU_SDATE TYPE STRING,
DU_STIME TYPE STRING,
DU_EDATE TYPE STRING,
DU_ETIME TYPE STRING,
DU_TS TYPE STRING,
DU_NRREAD TYPE STRING,
DU_NRSENT TYPE STRING,
TS TYPE STRING,
UENUM TYPE STRING,
SAPRL TYPE STRING,
CHGRUN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_URBWLG_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_URBWLG_STR-DSOURCE sy-vline 
WA_URBWLG_STR-SYSID sy-vline 
WA_URBWLG_STR-MANDT sy-vline 
WA_URBWLG_STR-TRANSTRUC sy-vline 
WA_URBWLG_STR-REPSTATUS sy-vline 
WA_URBWLG_STR-APPLCLASS sy-vline 
WA_URBWLG_STR-TABNAME sy-vline 
WA_URBWLG_STR-AEDAT sy-vline 
WA_URBWLG_STR-AETIM sy-vline 
WA_URBWLG_STR-AENAM sy-vline 
WA_URBWLG_STR-IU_SDATE sy-vline 
WA_URBWLG_STR-IU_STIME sy-vline 
WA_URBWLG_STR-IU_EDATE sy-vline 
WA_URBWLG_STR-IU_ETIME sy-vline 
WA_URBWLG_STR-IU_TS sy-vline 
WA_URBWLG_STR-IU_NRREAD sy-vline 
WA_URBWLG_STR-IU_NRSENT sy-vline 
WA_URBWLG_STR-DU_ANZAHL sy-vline 
WA_URBWLG_STR-DU_SDATE sy-vline 
WA_URBWLG_STR-DU_STIME sy-vline 
WA_URBWLG_STR-DU_EDATE sy-vline 
WA_URBWLG_STR-DU_ETIME sy-vline 
WA_URBWLG_STR-DU_TS sy-vline 
WA_URBWLG_STR-DU_NRREAD sy-vline 
WA_URBWLG_STR-DU_NRSENT sy-vline 
WA_URBWLG_STR-TS sy-vline 
WA_URBWLG_STR-UENUM sy-vline 
WA_URBWLG_STR-SAPRL sy-vline 
WA_URBWLG_STR-CHGRUN sy-vline      INTO ld_text SEPARATED BY SPACE.

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