ABAP Select data from SAP table IBASE_S_T371A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IBASE_S_T371A 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 IBASE_S_T371A. 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 IBASE_S_T371A 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_IBASE_S_T371A TYPE STANDARD TABLE OF IBASE_S_T371A,
      WA_IBASE_S_T371A TYPE IBASE_S_T371A,
      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: <IBASE_S_T371A> TYPE IBASE_S_T371A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IBASE_S_T371A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IBASE_S_T371A
  INTO TABLE IT_IBASE_S_T371A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IBASE_S_T371A
*  INTO TABLE @DATA(IT_IBASE_S_T371A2).
*--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_IBASE_S_T371A INDEX 1 INTO DATA(WA_IBASE_S_T371A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IBASE_S_T371A ASSIGNING <IBASE_S_T371A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IBASE_S_T371A>-MANDT = 1.
<IBASE_S_T371A>-IBTYP = 1.
<IBASE_S_T371A>-STSMA = 1.
<IBASE_S_T371A>-COMPIND = 1.
<IBASE_S_T371A>-CONFIND = 1.

ENDLOOP.

LOOP AT IT_IBASE_S_T371A INTO WA_IBASE_S_T371A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IBASE_S_T371A-FILID, sy-vline,
  WA_IBASE_S_T371A-VALTYP, sy-vline,
  WA_IBASE_S_T371A-INTST, sy-vline,
  WA_IBASE_S_T371A-STTYP, sy-vline,
  WA_IBASE_S_T371A-IBASEMAIN, sy-vline,
  WA_IBASE_S_T371A-CHGKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IBASE_S_T371A 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_IBASE_S_T371A 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_IBASE_S_T371A INTO WA_IBASE_S_T371A.


*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_IBASE_S_T371A_STR, 
MANDT TYPE STRING,
IBTYP TYPE STRING,
STSMA TYPE STRING,
COMPIND TYPE STRING,
CONFIND TYPE STRING,
FILID TYPE STRING,
VALTYP TYPE STRING,
INTST TYPE STRING,
STTYP TYPE STRING,
IBASEMAIN TYPE STRING,
CHGKZ TYPE STRING,
CASEKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IBASE_S_T371A_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_IBASE_S_T371A_STR-MANDT sy-vline 
WA_IBASE_S_T371A_STR-IBTYP sy-vline 
WA_IBASE_S_T371A_STR-STSMA sy-vline 
WA_IBASE_S_T371A_STR-COMPIND sy-vline 
WA_IBASE_S_T371A_STR-CONFIND sy-vline 
WA_IBASE_S_T371A_STR-FILID sy-vline 
WA_IBASE_S_T371A_STR-VALTYP sy-vline 
WA_IBASE_S_T371A_STR-INTST sy-vline 
WA_IBASE_S_T371A_STR-STTYP sy-vline 
WA_IBASE_S_T371A_STR-IBASEMAIN sy-vline 
WA_IBASE_S_T371A_STR-CHGKZ sy-vline 
WA_IBASE_S_T371A_STR-CASEKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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