ABAP Select data from SAP table /PLMI/S_DIR_BUFFER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /PLMI/S_DIR_BUFFER
*  INTO TABLE @DATA(IT_/PLMI/S_DIR_BUFFER2).
*--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_/PLMI/S_DIR_BUFFER INDEX 1 INTO DATA(WA_/PLMI/S_DIR_BUFFER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</PLMI/S_DIR_BUFFER>-DOCUMENTTYPE = 1.
</PLMI/S_DIR_BUFFER>-DOCUMENTNUMBER = 1.
</PLMI/S_DIR_BUFFER>-DOCUMENTPART = 1.
</PLMI/S_DIR_BUFFER>-DOCUMENTVERSION = 1.
</PLMI/S_DIR_BUFFER>-NEW_DIR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/PLMI/S_DIR_BUFFER-CHANGED_DIR, sy-vline,
  WA_/PLMI/S_DIR_BUFFER-LOCKED, sy-vline,
  WA_/PLMI/S_DIR_BUFFER-LOCKED_LINKS, sy-vline,
  WA_/PLMI/S_DIR_BUFFER-BUFFER_HEADER, sy-vline,
  WA_/PLMI/S_DIR_BUFFER-BUFFER_SUP, sy-vline,
  WA_/PLMI/S_DIR_BUFFER-BUFFER_THMB, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/PLMI/S_DIR_BUFFER 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_/PLMI/S_DIR_BUFFER 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_/PLMI/S_DIR_BUFFER INTO WA_/PLMI/S_DIR_BUFFER.


*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 ALPHA, internal->external for field DOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMI/S_DIR_BUFFER-DOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMI/S_DIR_BUFFER-DOCUMENTNUMBER.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit NUMCV, internal->external for field REVLEVEL
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_/PLMI/S_DIR_BUFFER-REVLEVEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMI/S_DIR_BUFFER-REVLEVEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PREDOCUMENTNUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/PLMI/S_DIR_BUFFER-PREDOCUMENTNUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/PLMI/S_DIR_BUFFER-PREDOCUMENTNUMBER.
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_/PLMI/S_DIR_BUFFER_STR, 
DOCUMENTTYPE TYPE STRING,
DOCUMENTNUMBER TYPE STRING,
DOCUMENTPART TYPE STRING,
DOCUMENTVERSION TYPE STRING,
NEW_DIR TYPE STRING,
CHANGED_DIR TYPE STRING,
LOCKED TYPE STRING,
LOCKED_LINKS TYPE STRING,
BUFFER_HEADER TYPE STRING,
BUFFER_SUP TYPE STRING,
BUFFER_THMB TYPE STRING,
BUFFER_DESC TYPE STRING,
BUFFER_LINKS TYPE STRING,
BUFFER_ORI TYPE STRING,
BUFFER_FILES TYPE STRING,
REFDOCUMENTNUMBER TYPE STRING,
REFDOCUMENTPART TYPE STRING,
REFDOCUMENTVERSION TYPE STRING,
DESCRIPTION TYPE STRING,
STATUSEXTERN TYPE STRING,
STATUSINTERN TYPE STRING,
USERNAME TYPE STRING,
LABORATORY TYPE STRING,
ECNUMBER TYPE STRING,
ECNFLAG TYPE STRING,
VALIDFROMDATE TYPE STRING,
AUTHORITYGROUP TYPE STRING,
DELETEINDICATOR TYPE STRING,
CADINDICATOR TYPE STRING,
REVLEVEL TYPE STRING,
CMRELEVANCE TYPE STRING,
STATUSLOG TYPE STRING,
TEXTINDICATOR TYPE STRING,
SIG_STATUS TYPE STRING,
DOC_VER_LATEST TYPE STRING,
DOC_VER_LATEST_REL TYPE STRING,
STZAE TYPE STRING,
DATUM TYPE STRING,
SIG_LOG_FLAG TYPE STRING,
PREDOCUMENTNUMBER TYPE STRING,
PREDOCUMENTVERSION TYPE STRING,
PREDOCUMENTPART TYPE STRING,
PREDOCUMENTTYPE TYPE STRING,
CVHIER TYPE STRING,
STRUCTUREINDICATOR TYPE STRING,
THUMBNAIL TYPE STRING,
DESCRIPTIONS TYPE STRING,
LINKS TYPE STRING,
ORIGINALS TYPE STRING,
ADD_FILES TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/PLMI/S_DIR_BUFFER_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_/PLMI/S_DIR_BUFFER_STR-DOCUMENTTYPE sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DOCUMENTNUMBER sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DOCUMENTPART sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DOCUMENTVERSION sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-NEW_DIR sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-CHANGED_DIR sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-LOCKED sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-LOCKED_LINKS sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-BUFFER_HEADER sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-BUFFER_SUP sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-BUFFER_THMB sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-BUFFER_DESC sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-BUFFER_LINKS sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-BUFFER_ORI sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-BUFFER_FILES sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-REFDOCUMENTNUMBER sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-REFDOCUMENTPART sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-REFDOCUMENTVERSION sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DESCRIPTION sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-STATUSEXTERN sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-STATUSINTERN sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-USERNAME sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-LABORATORY sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-ECNUMBER sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-ECNFLAG sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-VALIDFROMDATE sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-AUTHORITYGROUP sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DELETEINDICATOR sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-CADINDICATOR sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-REVLEVEL sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-CMRELEVANCE sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-STATUSLOG sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-TEXTINDICATOR sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-SIG_STATUS sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DOC_VER_LATEST sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DOC_VER_LATEST_REL sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-STZAE sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DATUM sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-SIG_LOG_FLAG sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-PREDOCUMENTNUMBER sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-PREDOCUMENTVERSION sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-PREDOCUMENTPART sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-PREDOCUMENTTYPE sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-CVHIER sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-STRUCTUREINDICATOR sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-THUMBNAIL sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-DESCRIPTIONS sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-LINKS sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-ORIGINALS sy-vline 
WA_/PLMI/S_DIR_BUFFER_STR-ADD_FILES sy-vline      INTO ld_text SEPARATED BY SPACE.

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