ABAP Select data from SAP table CBIH_METHOD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CBIH_METHOD
*  INTO TABLE @DATA(IT_CBIH_METHOD2).
*--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_CBIH_METHOD INDEX 1 INTO DATA(WA_CBIH_METHOD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CBIH_METHOD>-MANDT = 1.
<CBIH_METHOD>-METHOD = 1.
<CBIH_METHOD>-METHODTXT = 1.
<CBIH_METHOD>-FLOW = 1.
<CBIH_METHOD>-FLOWUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CBIH_METHOD-ANLAB, sy-vline,
  WA_CBIH_METHOD-ANLABRLT, sy-vline,
  WA_CBIH_METHOD-STMFLG, sy-vline,
  WA_CBIH_METHOD-MPLDURATION, sy-vline,
  WA_CBIH_METHOD-METINSTRUCT, sy-vline,
  WA_CBIH_METHOD-METCOASTS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CBIH_METHOD 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_CBIH_METHOD 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_CBIH_METHOD INTO WA_CBIH_METHOD.


*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.

*Conversion exit CUNIT, internal->external for field FLOWUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CBIH_METHOD-FLOWUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBIH_METHOD-FLOWUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ANLAB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CBIH_METHOD-ANLAB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CBIH_METHOD-ANLAB.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CBIH_METHOD_STR, 
MANDT TYPE STRING,
METHOD TYPE STRING,
METHODTXT TYPE STRING,
FLOW TYPE STRING,
FLOWUNIT TYPE STRING,
ANLAB TYPE STRING,
ANLABRLT TYPE STRING,
STMFLG TYPE STRING,
MPLDURATION TYPE STRING,
METINSTRUCT TYPE STRING,
METCOASTS TYPE STRING,
METCUKY TYPE STRING,
VOLREQEXPFLG TYPE STRING,
VOLREQRELFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CBIH_METHOD_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_CBIH_METHOD_STR-MANDT sy-vline 
WA_CBIH_METHOD_STR-METHOD sy-vline 
WA_CBIH_METHOD_STR-METHODTXT sy-vline 
WA_CBIH_METHOD_STR-FLOW sy-vline 
WA_CBIH_METHOD_STR-FLOWUNIT sy-vline 
WA_CBIH_METHOD_STR-ANLAB sy-vline 
WA_CBIH_METHOD_STR-ANLABRLT sy-vline 
WA_CBIH_METHOD_STR-STMFLG sy-vline 
WA_CBIH_METHOD_STR-MPLDURATION sy-vline 
WA_CBIH_METHOD_STR-METINSTRUCT sy-vline 
WA_CBIH_METHOD_STR-METCOASTS sy-vline 
WA_CBIH_METHOD_STR-METCUKY sy-vline 
WA_CBIH_METHOD_STR-VOLREQEXPFLG sy-vline 
WA_CBIH_METHOD_STR-VOLREQRELFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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