ABAP Select data from SAP table INFO_TAB into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM INFO_TAB
*  INTO TABLE @DATA(IT_INFO_TAB2).
*--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_INFO_TAB INDEX 1 INTO DATA(WA_INFO_TAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<INFO_TAB>-SCOMP = 1.
<INFO_TAB>-STEXT = 1.
<INFO_TAB>-INFTY = 1.
<INFO_TAB>-SUBTY = 1.
<INFO_TAB>-LGART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_INFO_TAB-CLCFM, sy-vline,
  WA_INFO_TAB-F4HFM, sy-vline,
  WA_INFO_TAB-PKIND, sy-vline,
  WA_INFO_TAB-RMPRT, sy-vline,
  WA_INFO_TAB-CSEQU, sy-vline,
  WA_INFO_TAB-DSEQU, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_INFO_TAB 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_INFO_TAB 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_INFO_TAB INTO WA_INFO_TAB.


*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_INFO_TAB_STR, 
SCOMP TYPE STRING,
STEXT TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
LGART TYPE STRING,
CLCFM TYPE STRING,
F4HFM TYPE STRING,
PKIND TYPE STRING,
RMPRT TYPE STRING,
CSEQU TYPE STRING,
DSEQU TYPE STRING,
MNDRY TYPE STRING,
PRAMT TYPE STRING,
DEFFG TYPE STRING,
MINFG TYPE STRING,
MAXFG TYPE STRING,
USDFF TYPE STRING,
USICF TYPE STRING,
FACTP TYPE STRING,
PERTY TYPE STRING,
ELIGR TYPE STRING,
INPST TYPE STRING,
TRALL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_INFO_TAB_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_INFO_TAB_STR-SCOMP sy-vline 
WA_INFO_TAB_STR-STEXT sy-vline 
WA_INFO_TAB_STR-INFTY sy-vline 
WA_INFO_TAB_STR-SUBTY sy-vline 
WA_INFO_TAB_STR-LGART sy-vline 
WA_INFO_TAB_STR-CLCFM sy-vline 
WA_INFO_TAB_STR-F4HFM sy-vline 
WA_INFO_TAB_STR-PKIND sy-vline 
WA_INFO_TAB_STR-RMPRT sy-vline 
WA_INFO_TAB_STR-CSEQU sy-vline 
WA_INFO_TAB_STR-DSEQU sy-vline 
WA_INFO_TAB_STR-MNDRY sy-vline 
WA_INFO_TAB_STR-PRAMT sy-vline 
WA_INFO_TAB_STR-DEFFG sy-vline 
WA_INFO_TAB_STR-MINFG sy-vline 
WA_INFO_TAB_STR-MAXFG sy-vline 
WA_INFO_TAB_STR-USDFF sy-vline 
WA_INFO_TAB_STR-USICF sy-vline 
WA_INFO_TAB_STR-FACTP sy-vline 
WA_INFO_TAB_STR-PERTY sy-vline 
WA_INFO_TAB_STR-ELIGR sy-vline 
WA_INFO_TAB_STR-INPST sy-vline 
WA_INFO_TAB_STR-TRALL sy-vline      INTO ld_text SEPARATED BY SPACE.

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