ABAP Select data from SAP table LSLSPSRVSTRU into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP LSLSPSRVSTRU 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 LSLSPSRVSTRU. 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 LSLSPSRVSTRU 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_LSLSPSRVSTRU TYPE STANDARD TABLE OF LSLSPSRVSTRU,
      WA_LSLSPSRVSTRU TYPE LSLSPSRVSTRU,
      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: <LSLSPSRVSTRU> TYPE LSLSPSRVSTRU.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM LSLSPSRVSTRU
*  INTO TABLE @DATA(IT_LSLSPSRVSTRU2).
*--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_LSLSPSRVSTRU INDEX 1 INTO DATA(WA_LSLSPSRVSTRU2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<LSLSPSRVSTRU>-PLANVERSION = 1.
<LSLSPSRVSTRU>-LSP_TYPE = 1.
<LSLSPSRVSTRU>-LSP_ID = 1.
<LSLSPSRVSTRU>-LSPKEY = 1.
<LSLSPSRVSTRU>-SERVICE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_LSLSPSRVSTRU-LSPNAME, sy-vline,
  WA_LSLSPSRVSTRU-ELMSDEST, sy-vline,
  WA_LSLSPSRVSTRU-ELMSIF, sy-vline,
  WA_LSLSPSRVSTRU-ACCNAME, sy-vline,
  WA_LSLSPSRVSTRU-ACCPWD, sy-vline,
  WA_LSLSPSRVSTRU-HDRNS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_LSLSPSRVSTRU 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_LSLSPSRVSTRU 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_LSLSPSRVSTRU INTO WA_LSLSPSRVSTRU.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_LSLSPSRVSTRU_STR, 
PLANVERSION TYPE STRING,
LSP_TYPE TYPE STRING,
LSP_ID TYPE STRING,
LSPKEY TYPE STRING,
SERVICE TYPE STRING,
LSPNAME TYPE STRING,
ELMSDEST TYPE STRING,
ELMSIF TYPE STRING,
ACCNAME TYPE STRING,
ACCPWD TYPE STRING,
HDRNS TYPE STRING,
HDRNSPREFIX TYPE STRING,
ELMSTYPE TYPE STRING,
SOAPSRV TYPE STRING,
SOAPMETH TYPE STRING,
SOAPACT TYPE STRING,
XMLNS TYPE STRING,
NSPREFIX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_LSLSPSRVSTRU_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_LSLSPSRVSTRU_STR-PLANVERSION sy-vline 
WA_LSLSPSRVSTRU_STR-LSP_TYPE sy-vline 
WA_LSLSPSRVSTRU_STR-LSP_ID sy-vline 
WA_LSLSPSRVSTRU_STR-LSPKEY sy-vline 
WA_LSLSPSRVSTRU_STR-SERVICE sy-vline 
WA_LSLSPSRVSTRU_STR-LSPNAME sy-vline 
WA_LSLSPSRVSTRU_STR-ELMSDEST sy-vline 
WA_LSLSPSRVSTRU_STR-ELMSIF sy-vline 
WA_LSLSPSRVSTRU_STR-ACCNAME sy-vline 
WA_LSLSPSRVSTRU_STR-ACCPWD sy-vline 
WA_LSLSPSRVSTRU_STR-HDRNS sy-vline 
WA_LSLSPSRVSTRU_STR-HDRNSPREFIX sy-vline 
WA_LSLSPSRVSTRU_STR-ELMSTYPE sy-vline 
WA_LSLSPSRVSTRU_STR-SOAPSRV sy-vline 
WA_LSLSPSRVSTRU_STR-SOAPMETH sy-vline 
WA_LSLSPSRVSTRU_STR-SOAPACT sy-vline 
WA_LSLSPSRVSTRU_STR-XMLNS sy-vline 
WA_LSLSPSRVSTRU_STR-NSPREFIX sy-vline      INTO ld_text SEPARATED BY SPACE.

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