ABAP Select data from SAP table INTSAA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INTSAA
*  INTO TABLE @DATA(IT_INTSAA2).
*--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_INTSAA INDEX 1 INTO DATA(WA_INTSAA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INTSAA>-SAANODE = 1.
<INTSAA>-SAASORT = 1.
<INTSAA>-NODEPOS = 1.
<INTSAA>-NODEPARENT = 1.
<INTSAA>-DEPOPSYS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INTSAA-DEPDBSYS, sy-vline,
  WA_INTSAA-DEPR3, sy-vline,
  WA_INTSAA-RRRONLY, sy-vline,
  WA_INTSAA-PRODONLY, sy-vline,
  WA_INTSAA-NODEFUNC, sy-vline,
  WA_INTSAA-SAADOCUTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INTSAA 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_INTSAA 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_INTSAA INTO WA_INTSAA.


*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_INTSAA_STR, 
SAANODE TYPE STRING,
SAASORT TYPE STRING,
NODEPOS TYPE STRING,
NODEPARENT TYPE STRING,
DEPOPSYS TYPE STRING,
DEPDBSYS TYPE STRING,
DEPR3 TYPE STRING,
RRRONLY TYPE STRING,
PRODONLY TYPE STRING,
NODEFUNC TYPE STRING,
SAADOCUTYP TYPE STRING,
ATTACHDOCU TYPE STRING,
ATTACHACT TYPE STRING,
ATTACHFUNC TYPE STRING,
ATTACHMAND TYPE STRING,
PERIODIC TYPE STRING,
SAAFKT TYPE STRING,
PER_EXT TYPE STRING,
SAASOURCE TYPE STRING,
SAAAREA TYPE STRING,
EXEDATE TYPE STRING,
EXETIME TYPE STRING,
UNAME TYPE STRING,
REMSYS TYPE STRING,
EXESTATUS TYPE STRING,
SAATEXT TYPE STRING,
NEXTPOS TYPE STRING,
FATHER TYPE STRING,
RESETFKT TYPE STRING,
ACCEPTFKT TYPE STRING,
EXPAND TYPE STRING,
MOD TYPE STRING,
COMP_ACTIV TYPE STRING,
COMP_SORT TYPE STRING,
VERSION TYPE STRING,
MOD_FLAG TYPE STRING,
REMOTE TYPE STRING,
POPUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INTSAA_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_INTSAA_STR-SAANODE sy-vline 
WA_INTSAA_STR-SAASORT sy-vline 
WA_INTSAA_STR-NODEPOS sy-vline 
WA_INTSAA_STR-NODEPARENT sy-vline 
WA_INTSAA_STR-DEPOPSYS sy-vline 
WA_INTSAA_STR-DEPDBSYS sy-vline 
WA_INTSAA_STR-DEPR3 sy-vline 
WA_INTSAA_STR-RRRONLY sy-vline 
WA_INTSAA_STR-PRODONLY sy-vline 
WA_INTSAA_STR-NODEFUNC sy-vline 
WA_INTSAA_STR-SAADOCUTYP sy-vline 
WA_INTSAA_STR-ATTACHDOCU sy-vline 
WA_INTSAA_STR-ATTACHACT sy-vline 
WA_INTSAA_STR-ATTACHFUNC sy-vline 
WA_INTSAA_STR-ATTACHMAND sy-vline 
WA_INTSAA_STR-PERIODIC sy-vline 
WA_INTSAA_STR-SAAFKT sy-vline 
WA_INTSAA_STR-PER_EXT sy-vline 
WA_INTSAA_STR-SAASOURCE sy-vline 
WA_INTSAA_STR-SAAAREA sy-vline 
WA_INTSAA_STR-EXEDATE sy-vline 
WA_INTSAA_STR-EXETIME sy-vline 
WA_INTSAA_STR-UNAME sy-vline 
WA_INTSAA_STR-REMSYS sy-vline 
WA_INTSAA_STR-EXESTATUS sy-vline 
WA_INTSAA_STR-SAATEXT sy-vline 
WA_INTSAA_STR-NEXTPOS sy-vline 
WA_INTSAA_STR-FATHER sy-vline 
WA_INTSAA_STR-RESETFKT sy-vline 
WA_INTSAA_STR-ACCEPTFKT sy-vline 
WA_INTSAA_STR-EXPAND sy-vline 
WA_INTSAA_STR-MOD sy-vline 
WA_INTSAA_STR-COMP_ACTIV sy-vline 
WA_INTSAA_STR-COMP_SORT sy-vline 
WA_INTSAA_STR-VERSION sy-vline 
WA_INTSAA_STR-MOD_FLAG sy-vline 
WA_INTSAA_STR-REMOTE sy-vline 
WA_INTSAA_STR-POPUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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