ABAP Select data from SAP table LEMOBDATA 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 LEMOBDATA 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 LEMOBDATA. 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 LEMOBDATA 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_LEMOBDATA TYPE STANDARD TABLE OF LEMOBDATA,
      WA_LEMOBDATA TYPE LEMOBDATA,
      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: <LEMOBDATA> TYPE LEMOBDATA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LEMOBDATA
*  INTO TABLE @DATA(IT_LEMOBDATA2).
*--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_LEMOBDATA INDEX 1 INTO DATA(WA_LEMOBDATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LEMOBDATA>-RDHU = 1.
<LEMOBDATA>-RDDEL = 1.
<LEMOBDATA>-RDMSAREA = 1.
<LEMOBDATA>-RDTRUCK = 1.
<LEMOBDATA>-RDWAVE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LEMOBDATA-RDTOIND, sy-vline,
  WA_LEMOBDATA-RDHUIND, sy-vline,
  WA_LEMOBDATA-RDCOINT, sy-vline,
  WA_LEMOBDATA-RDVEND, sy-vline,
  WA_LEMOBDATA-RDVENDDES, sy-vline,
  WA_LEMOBDATA-RDAQTY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LEMOBDATA 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_LEMOBDATA 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_LEMOBDATA INTO WA_LEMOBDATA.


*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 RDHU
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEMOBDATA-RDHU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEMOBDATA-RDHU.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit VSOLA, internal->external for field RDAQTY
CALL FUNCTION 'CONVERSION_EXIT_VSOLA_OUTPUT'
  EXPORTING
    input =                      WA_LEMOBDATA-RDAQTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEMOBDATA-RDAQTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit VSOLA, internal->external for field RDDQTY
CALL FUNCTION 'CONVERSION_EXIT_VSOLA_OUTPUT'
  EXPORTING
    input =                      WA_LEMOBDATA-RDDQTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEMOBDATA-RDDQTY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RDSHIP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LEMOBDATA-RDSHIP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LEMOBDATA-RDSHIP.
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_LEMOBDATA_STR, 
RDHU TYPE STRING,
RDDEL TYPE STRING,
RDMSAREA TYPE STRING,
RDTRUCK TYPE STRING,
RDWAVE TYPE STRING,
RDTOIND TYPE STRING,
RDHUIND TYPE STRING,
RDCOINT TYPE STRING,
RDVEND TYPE STRING,
RDVENDDES TYPE STRING,
RDAQTY TYPE STRING,
RDDQTY TYPE STRING,
RDTOT TYPE STRING,
RDCONF TYPE STRING,
RDFLAG TYPE STRING,
RDDLTY TYPE STRING,
RDLOADST TYPE STRING,
RDATE TYPE STRING,
RLGTOR TYPE STRING,
RDSHIP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LEMOBDATA_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_LEMOBDATA_STR-RDHU sy-vline 
WA_LEMOBDATA_STR-RDDEL sy-vline 
WA_LEMOBDATA_STR-RDMSAREA sy-vline 
WA_LEMOBDATA_STR-RDTRUCK sy-vline 
WA_LEMOBDATA_STR-RDWAVE sy-vline 
WA_LEMOBDATA_STR-RDTOIND sy-vline 
WA_LEMOBDATA_STR-RDHUIND sy-vline 
WA_LEMOBDATA_STR-RDCOINT sy-vline 
WA_LEMOBDATA_STR-RDVEND sy-vline 
WA_LEMOBDATA_STR-RDVENDDES sy-vline 
WA_LEMOBDATA_STR-RDAQTY sy-vline 
WA_LEMOBDATA_STR-RDDQTY sy-vline 
WA_LEMOBDATA_STR-RDTOT sy-vline 
WA_LEMOBDATA_STR-RDCONF sy-vline 
WA_LEMOBDATA_STR-RDFLAG sy-vline 
WA_LEMOBDATA_STR-RDDLTY sy-vline 
WA_LEMOBDATA_STR-RDLOADST sy-vline 
WA_LEMOBDATA_STR-RDATE sy-vline 
WA_LEMOBDATA_STR-RLGTOR sy-vline 
WA_LEMOBDATA_STR-RDSHIP sy-vline      INTO ld_text SEPARATED BY SPACE.

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