ABAP Select data from SAP table TABINFOS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TABINFOS
*  INTO TABLE @DATA(IT_TABINFOS2).
*--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_TABINFOS INDEX 1 INTO DATA(WA_TABINFOS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TABINFOS>-HEADER = 1.
<TABINFOS>-TABNAME = 1.
<TABINFOS>-PLATZ1 = 1.
<TABINFOS>-NR_ENTRIES = 1.
<TABINFOS>-PLATZ2 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TABINFOS-TABLEN, sy-vline,
  WA_TABINFOS-PLATZ3, sy-vline,
  WA_TABINFOS-KEY_LEN, sy-vline,
  WA_TABINFOS-PLATZ4, sy-vline,
  WA_TABINFOS-CLIENTDEP, sy-vline,
  WA_TABINFOS-PLATZ5, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TABINFOS 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_TABINFOS 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_TABINFOS INTO WA_TABINFOS.


*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_TABINFOS_STR, 
HEADER TYPE STRING,
TABNAME TYPE STRING,
PLATZ1 TYPE STRING,
NR_ENTRIES TYPE STRING,
PLATZ2 TYPE STRING,
TABLEN TYPE STRING,
PLATZ3 TYPE STRING,
KEY_LEN TYPE STRING,
PLATZ4 TYPE STRING,
CLIENTDEP TYPE STRING,
PLATZ5 TYPE STRING,
CONTFLAG TYPE STRING,
PLATZ6 TYPE STRING,
TABART TYPE STRING,
PLATZ7 TYPE STRING,
TABFORM TYPE STRING,
PLATZ8 TYPE STRING,
SQLTAB TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TABINFOS_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_TABINFOS_STR-HEADER sy-vline 
WA_TABINFOS_STR-TABNAME sy-vline 
WA_TABINFOS_STR-PLATZ1 sy-vline 
WA_TABINFOS_STR-NR_ENTRIES sy-vline 
WA_TABINFOS_STR-PLATZ2 sy-vline 
WA_TABINFOS_STR-TABLEN sy-vline 
WA_TABINFOS_STR-PLATZ3 sy-vline 
WA_TABINFOS_STR-KEY_LEN sy-vline 
WA_TABINFOS_STR-PLATZ4 sy-vline 
WA_TABINFOS_STR-CLIENTDEP sy-vline 
WA_TABINFOS_STR-PLATZ5 sy-vline 
WA_TABINFOS_STR-CONTFLAG sy-vline 
WA_TABINFOS_STR-PLATZ6 sy-vline 
WA_TABINFOS_STR-TABART sy-vline 
WA_TABINFOS_STR-PLATZ7 sy-vline 
WA_TABINFOS_STR-TABFORM sy-vline 
WA_TABINFOS_STR-PLATZ8 sy-vline 
WA_TABINFOS_STR-SQLTAB sy-vline      INTO ld_text SEPARATED BY SPACE.

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