ABAP Select data from SAP table SLS_IRES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SLS_IRES
*  INTO TABLE @DATA(IT_SLS_IRES2).
*--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_SLS_IRES INDEX 1 INTO DATA(WA_SLS_IRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SLS_IRES>-PETID = 1.
<SLS_IRES>-ITEMID = 1.
<SLS_IRES>-NAME = 1.
<SLS_IRES>-CLASS = 1.
<SLS_IRES>-GUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SLS_IRES-VAR1, sy-vline,
  WA_SLS_IRES-VAR2, sy-vline,
  WA_SLS_IRES-VAR3, sy-vline,
  WA_SLS_IRES-VAR4, sy-vline,
  WA_SLS_IRES-MAXPT, sy-vline,
  WA_SLS_IRES-TYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SLS_IRES 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_SLS_IRES 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_SLS_IRES INTO WA_SLS_IRES.


*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_SLS_IRES_STR, 
PETID TYPE STRING,
ITEMID TYPE STRING,
NAME TYPE STRING,
CLASS TYPE STRING,
GUID TYPE STRING,
VAR1 TYPE STRING,
VAR2 TYPE STRING,
VAR3 TYPE STRING,
VAR4 TYPE STRING,
MAXPT TYPE STRING,
TYPE TYPE STRING,
TYPE_C TYPE STRING,
SEQUNO TYPE STRING,
RPT TYPE STRING,
A001 TYPE STRING,
A002 TYPE STRING,
A003 TYPE STRING,
A004 TYPE STRING,
A005 TYPE STRING,
A006 TYPE STRING,
A007 TYPE STRING,
A008 TYPE STRING,
A009 TYPE STRING,
A010 TYPE STRING,
A011 TYPE STRING,
A012 TYPE STRING,
A013 TYPE STRING,
A014 TYPE STRING,
A015 TYPE STRING,
A016 TYPE STRING,
A017 TYPE STRING,
A018 TYPE STRING,
A019 TYPE STRING,
A020 TYPE STRING,
S001 TYPE STRING,
S002 TYPE STRING,
S003 TYPE STRING,
S004 TYPE STRING,
S005 TYPE STRING,
S006 TYPE STRING,
S007 TYPE STRING,
S008 TYPE STRING,
S009 TYPE STRING,
S010 TYPE STRING,
S011 TYPE STRING,
S012 TYPE STRING,
S013 TYPE STRING,
S014 TYPE STRING,
S015 TYPE STRING,
S016 TYPE STRING,
S017 TYPE STRING,
S018 TYPE STRING,
S019 TYPE STRING,
S020 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SLS_IRES_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_SLS_IRES_STR-PETID sy-vline 
WA_SLS_IRES_STR-ITEMID sy-vline 
WA_SLS_IRES_STR-NAME sy-vline 
WA_SLS_IRES_STR-CLASS sy-vline 
WA_SLS_IRES_STR-GUID sy-vline 
WA_SLS_IRES_STR-VAR1 sy-vline 
WA_SLS_IRES_STR-VAR2 sy-vline 
WA_SLS_IRES_STR-VAR3 sy-vline 
WA_SLS_IRES_STR-VAR4 sy-vline 
WA_SLS_IRES_STR-MAXPT sy-vline 
WA_SLS_IRES_STR-TYPE sy-vline 
WA_SLS_IRES_STR-TYPE_C sy-vline 
WA_SLS_IRES_STR-SEQUNO sy-vline 
WA_SLS_IRES_STR-RPT sy-vline 
WA_SLS_IRES_STR-A001 sy-vline 
WA_SLS_IRES_STR-A002 sy-vline 
WA_SLS_IRES_STR-A003 sy-vline 
WA_SLS_IRES_STR-A004 sy-vline 
WA_SLS_IRES_STR-A005 sy-vline 
WA_SLS_IRES_STR-A006 sy-vline 
WA_SLS_IRES_STR-A007 sy-vline 
WA_SLS_IRES_STR-A008 sy-vline 
WA_SLS_IRES_STR-A009 sy-vline 
WA_SLS_IRES_STR-A010 sy-vline 
WA_SLS_IRES_STR-A011 sy-vline 
WA_SLS_IRES_STR-A012 sy-vline 
WA_SLS_IRES_STR-A013 sy-vline 
WA_SLS_IRES_STR-A014 sy-vline 
WA_SLS_IRES_STR-A015 sy-vline 
WA_SLS_IRES_STR-A016 sy-vline 
WA_SLS_IRES_STR-A017 sy-vline 
WA_SLS_IRES_STR-A018 sy-vline 
WA_SLS_IRES_STR-A019 sy-vline 
WA_SLS_IRES_STR-A020 sy-vline 
WA_SLS_IRES_STR-S001 sy-vline 
WA_SLS_IRES_STR-S002 sy-vline 
WA_SLS_IRES_STR-S003 sy-vline 
WA_SLS_IRES_STR-S004 sy-vline 
WA_SLS_IRES_STR-S005 sy-vline 
WA_SLS_IRES_STR-S006 sy-vline 
WA_SLS_IRES_STR-S007 sy-vline 
WA_SLS_IRES_STR-S008 sy-vline 
WA_SLS_IRES_STR-S009 sy-vline 
WA_SLS_IRES_STR-S010 sy-vline 
WA_SLS_IRES_STR-S011 sy-vline 
WA_SLS_IRES_STR-S012 sy-vline 
WA_SLS_IRES_STR-S013 sy-vline 
WA_SLS_IRES_STR-S014 sy-vline 
WA_SLS_IRES_STR-S015 sy-vline 
WA_SLS_IRES_STR-S016 sy-vline 
WA_SLS_IRES_STR-S017 sy-vline 
WA_SLS_IRES_STR-S018 sy-vline 
WA_SLS_IRES_STR-S019 sy-vline 
WA_SLS_IRES_STR-S020 sy-vline      INTO ld_text SEPARATED BY SPACE.

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