ABAP Select data from SAP table LTBA 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 LTBA 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 LTBA. 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 LTBA 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_LTBA TYPE STANDARD TABLE OF LTBA,
      WA_LTBA TYPE LTBA,
      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: <LTBA> TYPE LTBA.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LTBA
*  INTO TABLE @DATA(IT_LTBA2).
*--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_LTBA INDEX 1 INTO DATA(WA_LTBA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LTBA>-TABIX = 1.
<LTBA>-LGNUM = 1.
<LTBA>-TBPRI = 1.
<LTBA>-MATNR = 1.
<LTBA>-WERKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LTBA-LGORT, sy-vline,
  WA_LTBA-CHARG, sy-vline,
  WA_LTBA-BESTQ, sy-vline,
  WA_LTBA-SOBKZ, sy-vline,
  WA_LTBA-SONUM, sy-vline,
  WA_LTBA-MENGA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LTBA 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_LTBA 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_LTBA INTO WA_LTBA.


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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field PKNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LTBA-PKNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LTBA-PKNUM.
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_LTBA_STR, 
TABIX TYPE STRING,
LGNUM TYPE STRING,
TBPRI TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
BESTQ TYPE STRING,
SOBKZ TYPE STRING,
SONUM TYPE STRING,
MENGA TYPE STRING,
ALTME TYPE STRING,
TBKTX TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
BNAME TYPE STRING,
BETYP TYPE STRING,
BENUM TYPE STRING,
BWLVS TYPE STRING,
VLTYP TYPE STRING,
VLPLA TYPE STRING,
VKDYN TYPE STRING,
NLTYP TYPE STRING,
NLPLA TYPE STRING,
NKDYN TYPE STRING,
PDATU TYPE STRING,
PZEIT TYPE STRING,
QPLOS TYPE STRING,
QPLOA TYPE STRING,
TBRUE TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
LZNUM TYPE STRING,
AUTTA TYPE STRING,
TBNUM TYPE STRING,
TBPOS TYPE STRING,
EPROT TYPE STRING,
BDART TYPE STRING,
WDATU TYPE STRING,
ZEUGN TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
VFDAT TYPE STRING,
PKNUM TYPE STRING,
PKPOS TYPE STRING,
DIRTA TYPE STRING,
KZECH TYPE STRING,
RSART TYPE STRING,
LGNTB TYPE STRING,
L2SKR TYPE STRING,
TRART TYPE STRING,
KBNKZ TYPE STRING,
BERKZ TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGTY TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
SGT_SCAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LTBA_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_LTBA_STR-TABIX sy-vline 
WA_LTBA_STR-LGNUM sy-vline 
WA_LTBA_STR-TBPRI sy-vline 
WA_LTBA_STR-MATNR sy-vline 
WA_LTBA_STR-WERKS sy-vline 
WA_LTBA_STR-LGORT sy-vline 
WA_LTBA_STR-CHARG sy-vline 
WA_LTBA_STR-BESTQ sy-vline 
WA_LTBA_STR-SOBKZ sy-vline 
WA_LTBA_STR-SONUM sy-vline 
WA_LTBA_STR-MENGA sy-vline 
WA_LTBA_STR-ALTME sy-vline 
WA_LTBA_STR-TBKTX sy-vline 
WA_LTBA_STR-WEMPF sy-vline 
WA_LTBA_STR-ABLAD sy-vline 
WA_LTBA_STR-BNAME sy-vline 
WA_LTBA_STR-BETYP sy-vline 
WA_LTBA_STR-BENUM sy-vline 
WA_LTBA_STR-BWLVS sy-vline 
WA_LTBA_STR-VLTYP sy-vline 
WA_LTBA_STR-VLPLA sy-vline 
WA_LTBA_STR-VKDYN sy-vline 
WA_LTBA_STR-NLTYP sy-vline 
WA_LTBA_STR-NLPLA sy-vline 
WA_LTBA_STR-NKDYN sy-vline 
WA_LTBA_STR-PDATU sy-vline 
WA_LTBA_STR-PZEIT sy-vline 
WA_LTBA_STR-QPLOS sy-vline 
WA_LTBA_STR-QPLOA sy-vline 
WA_LTBA_STR-TBRUE sy-vline 
WA_LTBA_STR-RSNUM sy-vline 
WA_LTBA_STR-RSPOS sy-vline 
WA_LTBA_STR-LZNUM sy-vline 
WA_LTBA_STR-AUTTA sy-vline 
WA_LTBA_STR-TBNUM sy-vline 
WA_LTBA_STR-TBPOS sy-vline 
WA_LTBA_STR-EPROT sy-vline 
WA_LTBA_STR-BDART sy-vline 
WA_LTBA_STR-WDATU sy-vline 
WA_LTBA_STR-ZEUGN sy-vline 
WA_LTBA_STR-MBLNR sy-vline 
WA_LTBA_STR-MJAHR sy-vline 
WA_LTBA_STR-VFDAT sy-vline 
WA_LTBA_STR-PKNUM sy-vline 
WA_LTBA_STR-PKPOS sy-vline 
WA_LTBA_STR-DIRTA sy-vline 
WA_LTBA_STR-KZECH sy-vline 
WA_LTBA_STR-RSART sy-vline 
WA_LTBA_STR-LGNTB sy-vline 
WA_LTBA_STR-L2SKR sy-vline 
WA_LTBA_STR-TRART sy-vline 
WA_LTBA_STR-KBNKZ sy-vline 
WA_LTBA_STR-BERKZ sy-vline 
WA_LTBA_STR-MSGID sy-vline 
WA_LTBA_STR-MSGNO sy-vline 
WA_LTBA_STR-MSGTY sy-vline 
WA_LTBA_STR-MSGV1 sy-vline 
WA_LTBA_STR-MSGV2 sy-vline 
WA_LTBA_STR-MSGV3 sy-vline 
WA_LTBA_STR-MSGV4 sy-vline 
WA_LTBA_STR-SGT_SCAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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