ABAP Select data from SAP table BIMST into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BIMST
*  INTO TABLE @DATA(IT_BIMST2).
*--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_BIMST INDEX 1 INTO DATA(WA_BIMST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BIMST>-STYPE = 1.
<BIMST>-TCODE = 1.
<BIMST>-NAME = 1.
<BIMST>-NAME_REF = 1.
<BIMST>-DESCRIPT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BIMST-FORMAT, sy-vline,
  WA_BIMST-LENGTH, sy-vline,
  WA_BIMST-DECIMALS, sy-vline,
  WA_BIMST-UNIT, sy-vline,
  WA_BIMST-INPUTREQU, sy-vline,
  WA_BIMST-SIGN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BIMST 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_BIMST 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_BIMST INTO WA_BIMST.


*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_BIMST_STR, 
STYPE TYPE STRING,
TCODE TYPE STRING,
NAME TYPE STRING,
NAME_REF TYPE STRING,
DESCRIPT TYPE STRING,
FORMAT TYPE STRING,
LENGTH TYPE STRING,
DECIMALS TYPE STRING,
UNIT TYPE STRING,
INPUTREQU TYPE STRING,
SIGN TYPE STRING,
LOWERCASE TYPE STRING,
PATTERN TYPE STRING,
INTERVAL TYPE STRING,
NO_VAL_CHK TYPE STRING,
TABLENAME TYPE STRING,
FIELDNAME TYPE STRING,
DISP_VALUE TYPE STRING,
USE_PATT TYPE STRING,
STATUS TYPE STRING,
MULTIPLE TYPE STRING,
EXPO_TYPE TYPE STRING,
EXPONENT TYPE STRING,
TITLE1 TYPE STRING,
TITLE2 TYPE STRING,
GROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BIMST_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_BIMST_STR-STYPE sy-vline 
WA_BIMST_STR-TCODE sy-vline 
WA_BIMST_STR-NAME sy-vline 
WA_BIMST_STR-NAME_REF sy-vline 
WA_BIMST_STR-DESCRIPT sy-vline 
WA_BIMST_STR-FORMAT sy-vline 
WA_BIMST_STR-LENGTH sy-vline 
WA_BIMST_STR-DECIMALS sy-vline 
WA_BIMST_STR-UNIT sy-vline 
WA_BIMST_STR-INPUTREQU sy-vline 
WA_BIMST_STR-SIGN sy-vline 
WA_BIMST_STR-LOWERCASE sy-vline 
WA_BIMST_STR-PATTERN sy-vline 
WA_BIMST_STR-INTERVAL sy-vline 
WA_BIMST_STR-NO_VAL_CHK sy-vline 
WA_BIMST_STR-TABLENAME sy-vline 
WA_BIMST_STR-FIELDNAME sy-vline 
WA_BIMST_STR-DISP_VALUE sy-vline 
WA_BIMST_STR-USE_PATT sy-vline 
WA_BIMST_STR-STATUS sy-vline 
WA_BIMST_STR-MULTIPLE sy-vline 
WA_BIMST_STR-EXPO_TYPE sy-vline 
WA_BIMST_STR-EXPONENT sy-vline 
WA_BIMST_STR-TITLE1 sy-vline 
WA_BIMST_STR-TITLE2 sy-vline 
WA_BIMST_STR-GROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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