ABAP Select data from SAP table TLMGB 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 TLMGB 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 TLMGB. 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 TLMGB 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_TLMGB TYPE STANDARD TABLE OF TLMGB,
      WA_TLMGB TYPE TLMGB,
      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: <TLMGB> TYPE TLMGB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TLMGB
*  INTO TABLE @DATA(IT_TLMGB2).
*--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_TLMGB INDEX 1 INTO DATA(WA_TLMGB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TLMGB>-MANDT = 1.
<TLMGB>-GJAHR = 1.
<TLMGB>-POPER = 1.
<TLMGB>-BUKRS = 1.
<TLMGB>-LIFNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TLMGB-MATNR, sy-vline,
  WA_TLMGB-GSBER, sy-vline,
  WA_TLMGB-PARGB, sy-vline,
  WA_TLMGB-PRCTR, sy-vline,
  WA_TLMGB-PPRCTR, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_TLMGB 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_TLMGB 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_TLMGB INTO WA_TLMGB.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TLMGB-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TLMGB-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TLMGB-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TLMGB-MATNR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field PPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TLMGB-PPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TLMGB-PPRCTR.
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_TLMGB_STR, 
MANDT TYPE STRING,
GJAHR TYPE STRING,
POPER TYPE STRING,
BUKRS TYPE STRING,
LIFNR TYPE STRING,
MATNR TYPE STRING,
GSBER TYPE STRING,
PARGB TYPE STRING,
PRCTR TYPE STRING,
PPRCTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TLMGB_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_TLMGB_STR-MANDT sy-vline 
WA_TLMGB_STR-GJAHR sy-vline 
WA_TLMGB_STR-POPER sy-vline 
WA_TLMGB_STR-BUKRS sy-vline 
WA_TLMGB_STR-LIFNR sy-vline 
WA_TLMGB_STR-MATNR sy-vline 
WA_TLMGB_STR-GSBER sy-vline 
WA_TLMGB_STR-PARGB sy-vline 
WA_TLMGB_STR-PRCTR sy-vline 
WA_TLMGB_STR-PPRCTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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