ABAP Select data from SAP table /SMB/BB_LIB_I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SMB/BB_LIB_I 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 /SMB/BB_LIB_I. 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 /SMB/BB_LIB_I 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_/SMB/BB_LIB_I TYPE STANDARD TABLE OF /SMB/BB_LIB_I,
      WA_/SMB/BB_LIB_I TYPE /SMB/BB_LIB_I,
      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: </SMB/BB_LIB_I> TYPE /SMB/BB_LIB_I.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SMB/BB_LIB_I
  INTO TABLE IT_/SMB/BB_LIB_I.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SMB/BB_LIB_I
*  INTO TABLE @DATA(IT_/SMB/BB_LIB_I2).
*--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_/SMB/BB_LIB_I INDEX 1 INTO DATA(WA_/SMB/BB_LIB_I2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SMB/BB_LIB_I ASSIGNING </SMB/BB_LIB_I>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SMB/BB_LIB_I>-MANDT = 1.
</SMB/BB_LIB_I>-BBID = 1.
</SMB/BB_LIB_I>-SEQNUM = 1.
</SMB/BB_LIB_I>-OBJTY = 1.
</SMB/BB_LIB_I>-OBJID = 1.

ENDLOOP.

LOOP AT IT_/SMB/BB_LIB_I INTO WA_/SMB/BB_LIB_I.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SMB/BB_LIB_I-FILENAME, sy-vline,
  WA_/SMB/BB_LIB_I-INTERACT, sy-vline,
  WA_/SMB/BB_LIB_I-MANDAT, sy-vline,
  WA_/SMB/BB_LIB_I-LONGTX, sy-vline,
  WA_/SMB/BB_LIB_I-PARENT, sy-vline,
  WA_/SMB/BB_LIB_I-INSTRUCTION_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SMB/BB_LIB_I 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_/SMB/BB_LIB_I 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_/SMB/BB_LIB_I INTO WA_/SMB/BB_LIB_I.


*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_/SMB/BB_LIB_I_STR, 
MANDT TYPE STRING,
BBID TYPE STRING,
SEQNUM TYPE STRING,
OBJTY TYPE STRING,
OBJID TYPE STRING,
FILENAME TYPE STRING,
INTERACT TYPE STRING,
MANDAT TYPE STRING,
LONGTX TYPE STRING,
PARENT TYPE STRING,
INSTRUCTION_ID TYPE STRING,
DOC_ID TYPE STRING,
DOC_POPUP TYPE STRING,
TCODE TYPE STRING,
SYSDATA TYPE STRING,
TESTSYSTEM TYPE STRING,
ECAT_VAR TYPE STRING,
DEMO TYPE STRING,
FIELDNAME TYPE STRING,
ALTN_OBJTY TYPE STRING,
ALTN_OBJID TYPE STRING,
ORDER_NUMBER TYPE STRING,
IMG_EXPERT_MODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SMB/BB_LIB_I_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_/SMB/BB_LIB_I_STR-MANDT sy-vline 
WA_/SMB/BB_LIB_I_STR-BBID sy-vline 
WA_/SMB/BB_LIB_I_STR-SEQNUM sy-vline 
WA_/SMB/BB_LIB_I_STR-OBJTY sy-vline 
WA_/SMB/BB_LIB_I_STR-OBJID sy-vline 
WA_/SMB/BB_LIB_I_STR-FILENAME sy-vline 
WA_/SMB/BB_LIB_I_STR-INTERACT sy-vline 
WA_/SMB/BB_LIB_I_STR-MANDAT sy-vline 
WA_/SMB/BB_LIB_I_STR-LONGTX sy-vline 
WA_/SMB/BB_LIB_I_STR-PARENT sy-vline 
WA_/SMB/BB_LIB_I_STR-INSTRUCTION_ID sy-vline 
WA_/SMB/BB_LIB_I_STR-DOC_ID sy-vline 
WA_/SMB/BB_LIB_I_STR-DOC_POPUP sy-vline 
WA_/SMB/BB_LIB_I_STR-TCODE sy-vline 
WA_/SMB/BB_LIB_I_STR-SYSDATA sy-vline 
WA_/SMB/BB_LIB_I_STR-TESTSYSTEM sy-vline 
WA_/SMB/BB_LIB_I_STR-ECAT_VAR sy-vline 
WA_/SMB/BB_LIB_I_STR-DEMO sy-vline 
WA_/SMB/BB_LIB_I_STR-FIELDNAME sy-vline 
WA_/SMB/BB_LIB_I_STR-ALTN_OBJTY sy-vline 
WA_/SMB/BB_LIB_I_STR-ALTN_OBJID sy-vline 
WA_/SMB/BB_LIB_I_STR-ORDER_NUMBER sy-vline 
WA_/SMB/BB_LIB_I_STR-IMG_EXPERT_MODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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