ABAP Select data from SAP table LIMTV into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LIMTV 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 LIMTV. 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 LIMTV 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_LIMTV TYPE STANDARD TABLE OF LIMTV,
      WA_LIMTV TYPE LIMTV,
      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: <LIMTV> TYPE LIMTV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LIMTV
*  INTO TABLE @DATA(IT_LIMTV2).
*--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_LIMTV INDEX 1 INTO DATA(WA_LIMTV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LIMTV>-VBELN = 1.
<LIMTV>-POSNR = 1.
<LIMTV>-SELKZ = 1.
<LIMTV>-ARKTX = 1.
<LIMTV>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LIMTV-LFART, sy-vline,
  WA_LIMTV-VSTEL, sy-vline,
  WA_LIMTV-LFDAT, sy-vline,
  WA_LIMTV-LDDAT, sy-vline,
  WA_LIMTV-WADAT, sy-vline,
  WA_LIMTV-TDDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LIMTV 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_LIMTV 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_LIMTV INTO WA_LIMTV.


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

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

*Conversion exit CUNIT, internal->external for field VRKME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LIMTV-VRKME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIMTV-VRKME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field GEWEI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LIMTV-GEWEI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIMTV-GEWEI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field VOLEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_LIMTV-VOLEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIMTV-VOLEH.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LIMTV-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LIMTV-ADRNR.
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_LIMTV_STR, 
VBELN TYPE STRING,
POSNR TYPE STRING,
SELKZ TYPE STRING,
ARKTX TYPE STRING,
MATNR TYPE STRING,
LFART TYPE STRING,
VSTEL TYPE STRING,
LFDAT TYPE STRING,
LDDAT TYPE STRING,
WADAT TYPE STRING,
TDDAT TYPE STRING,
KODAT TYPE STRING,
ROUTE TYPE STRING,
LFIMG TYPE STRING,
VRKME TYPE STRING,
NTGEW TYPE STRING,
BRGEW TYPE STRING,
GEWEI TYPE STRING,
VOLUM TYPE STRING,
VOLEH TYPE STRING,
FAKSP TYPE STRING,
KUNNR TYPE STRING,
NAME_WE TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKGRP TYPE STRING,
ERNAM TYPE STRING,
STATUS TYPE STRING,
STATUS_BEZ TYPE STRING,
ADRNR TYPE STRING,
NAME1 TYPE STRING,
VBTYP TYPE STRING,
ACTIV TYPE STRING,
DUMMY TYPE STRING,
CHARG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LIMTV_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_LIMTV_STR-VBELN sy-vline 
WA_LIMTV_STR-POSNR sy-vline 
WA_LIMTV_STR-SELKZ sy-vline 
WA_LIMTV_STR-ARKTX sy-vline 
WA_LIMTV_STR-MATNR sy-vline 
WA_LIMTV_STR-LFART sy-vline 
WA_LIMTV_STR-VSTEL sy-vline 
WA_LIMTV_STR-LFDAT sy-vline 
WA_LIMTV_STR-LDDAT sy-vline 
WA_LIMTV_STR-WADAT sy-vline 
WA_LIMTV_STR-TDDAT sy-vline 
WA_LIMTV_STR-KODAT sy-vline 
WA_LIMTV_STR-ROUTE sy-vline 
WA_LIMTV_STR-LFIMG sy-vline 
WA_LIMTV_STR-VRKME sy-vline 
WA_LIMTV_STR-NTGEW sy-vline 
WA_LIMTV_STR-BRGEW sy-vline 
WA_LIMTV_STR-GEWEI sy-vline 
WA_LIMTV_STR-VOLUM sy-vline 
WA_LIMTV_STR-VOLEH sy-vline 
WA_LIMTV_STR-FAKSP sy-vline 
WA_LIMTV_STR-KUNNR sy-vline 
WA_LIMTV_STR-NAME_WE sy-vline 
WA_LIMTV_STR-VKORG sy-vline 
WA_LIMTV_STR-VTWEG sy-vline 
WA_LIMTV_STR-SPART sy-vline 
WA_LIMTV_STR-VKGRP sy-vline 
WA_LIMTV_STR-ERNAM sy-vline 
WA_LIMTV_STR-STATUS sy-vline 
WA_LIMTV_STR-STATUS_BEZ sy-vline 
WA_LIMTV_STR-ADRNR sy-vline 
WA_LIMTV_STR-NAME1 sy-vline 
WA_LIMTV_STR-VBTYP sy-vline 
WA_LIMTV_STR-ACTIV sy-vline 
WA_LIMTV_STR-DUMMY sy-vline 
WA_LIMTV_STR-CHARG sy-vline      INTO ld_text SEPARATED BY SPACE.

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