ABAP Select data from SAP table LCSB1 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 LCSB1 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 LCSB1. 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 LCSB1 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_LCSB1 TYPE STANDARD TABLE OF LCSB1,
      WA_LCSB1 TYPE LCSB1,
      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: <LCSB1> TYPE LCSB1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_LCSB1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM LCSB1
  INTO TABLE IT_LCSB1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LCSB1
*  INTO TABLE @DATA(IT_LCSB12).
*--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_LCSB1 INDEX 1 INTO DATA(WA_LCSB12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_LCSB1 ASSIGNING <LCSB1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LCSB1>-RSUBD = 1.
<LCSB1>-RCOMP = 1.
<LCSB1>-RVERS = 1.
<LCSB1>-TVBTG = 1.
<LCSB1>-TVKAP = 1.

ENDLOOP.

LOOP AT IT_LCSB1 INTO WA_LCSB1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LCSB1-GJAHV, sy-vline,
  WA_LCSB1-GJAHB, sy-vline,
  WA_LCSB1-PERIV, sy-vline,
  WA_LCSB1-PERIB, sy-vline,
  WA_LCSB1-RLEVV, sy-vline,
  WA_LCSB1-RLEVB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LCSB1 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_LCSB1 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_LCSB1 INTO WA_LCSB1.


*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 RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LCSB1-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCSB1-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LCSB1-RVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCSB1-RVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVBTG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LCSB1-TVBTG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCSB1-TVBTG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TVKAP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_LCSB1-TVKAP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCSB1-TVKAP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_LCSB1-GJAHV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCSB1-GJAHV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHB
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_LCSB1-GJAHB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCSB1-GJAHB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field RVS_RYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_LCSB1-RVS_RYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_LCSB1-RVS_RYEAR.
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_LCSB1_STR, 
RSUBD TYPE STRING,
RCOMP TYPE STRING,
RVERS TYPE STRING,
TVBTG TYPE STRING,
TVKAP TYPE STRING,
GJAHV TYPE STRING,
GJAHB TYPE STRING,
PERIV TYPE STRING,
PERIB TYPE STRING,
RLEVV TYPE STRING,
RLEVB TYPE STRING,
BLG_STORNO TYPE STRING,
RVS_RYEAR TYPE STRING,
RVS_PERID TYPE STRING,
KZ_BDC TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,
SRTFO TYPE STRING,
STREP TYPE STRING,
STRSB TYPE STRING,
STRTD TYPE STRING,
STRTK TYPE STRING,
STRTS TYPE STRING,
TEXT1 TYPE STRING,
TEXT2 TYPE STRING,
TEXT3 TYPE STRING,
SUVAR TYPE STRING,
VARNR TYPE STRING,
CPAGE TYPE STRING,
TPAGE TYPE STRING,
XDESC TYPE STRING,
XJA TYPE STRING,
XNEIN TYPE STRING,
XSFSW TYPE STRING,
XSTRG TYPE STRING,
XSUCH TYPE STRING,
XSUMA TYPE STRING,
XZUSA TYPE STRING,
BISSL TYPE STRING,
VONSL TYPE STRING,
ZUART TYPE STRING,
TRVOG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LCSB1_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_LCSB1_STR-RSUBD sy-vline 
WA_LCSB1_STR-RCOMP sy-vline 
WA_LCSB1_STR-RVERS sy-vline 
WA_LCSB1_STR-TVBTG sy-vline 
WA_LCSB1_STR-TVKAP sy-vline 
WA_LCSB1_STR-GJAHV sy-vline 
WA_LCSB1_STR-GJAHB sy-vline 
WA_LCSB1_STR-PERIV sy-vline 
WA_LCSB1_STR-PERIB sy-vline 
WA_LCSB1_STR-RLEVV sy-vline 
WA_LCSB1_STR-RLEVB sy-vline 
WA_LCSB1_STR-BLG_STORNO sy-vline 
WA_LCSB1_STR-RVS_RYEAR sy-vline 
WA_LCSB1_STR-RVS_PERID sy-vline 
WA_LCSB1_STR-KZ_BDC sy-vline 
WA_LCSB1_STR-KTEXT sy-vline 
WA_LCSB1_STR-LTEXT sy-vline 
WA_LCSB1_STR-SRTFO sy-vline 
WA_LCSB1_STR-STREP sy-vline 
WA_LCSB1_STR-STRSB sy-vline 
WA_LCSB1_STR-STRTD sy-vline 
WA_LCSB1_STR-STRTK sy-vline 
WA_LCSB1_STR-STRTS sy-vline 
WA_LCSB1_STR-TEXT1 sy-vline 
WA_LCSB1_STR-TEXT2 sy-vline 
WA_LCSB1_STR-TEXT3 sy-vline 
WA_LCSB1_STR-SUVAR sy-vline 
WA_LCSB1_STR-VARNR sy-vline 
WA_LCSB1_STR-CPAGE sy-vline 
WA_LCSB1_STR-TPAGE sy-vline 
WA_LCSB1_STR-XDESC sy-vline 
WA_LCSB1_STR-XJA sy-vline 
WA_LCSB1_STR-XNEIN sy-vline 
WA_LCSB1_STR-XSFSW sy-vline 
WA_LCSB1_STR-XSTRG sy-vline 
WA_LCSB1_STR-XSUCH sy-vline 
WA_LCSB1_STR-XSUMA sy-vline 
WA_LCSB1_STR-XZUSA sy-vline 
WA_LCSB1_STR-BISSL sy-vline 
WA_LCSB1_STR-VONSL sy-vline 
WA_LCSB1_STR-ZUART sy-vline 
WA_LCSB1_STR-TRVOG sy-vline      INTO ld_text SEPARATED BY SPACE.

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