ABAP Select data from SAP table PROD_DETLD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PROD_DETLD
*  INTO TABLE @DATA(IT_PROD_DETLD2).
*--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_PROD_DETLD INDEX 1 INTO DATA(WA_PROD_DETLD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PROD_DETLD>-TIMESTMP = 1.
<PROD_DETLD>-CORE_CON = 1.
<PROD_DETLD>-ENHANC = 1.
<PROD_DETLD>-ENHANC_REL = 1.
<PROD_DETLD>-PROD_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PROD_DETLD-PROD_REL, sy-vline,
  WA_PROD_DETLD-GBU_IBU, sy-vline,
  WA_PROD_DETLD-COMP_SCEN, sy-vline,
  WA_PROD_DETLD-LOIO, sy-vline,
  WA_PROD_DETLD-SUBTECHNAM, sy-vline,
  WA_PROD_DETLD-FOLD_TECHN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PROD_DETLD 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_PROD_DETLD 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_PROD_DETLD INTO WA_PROD_DETLD.


*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 TSTLC, internal->external for field TIMESTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_PROD_DETLD-TIMESTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PROD_DETLD-TIMESTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field IO_SLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PROD_DETLD-IO_SLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PROD_DETLD-IO_SLANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field IO_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PROD_DETLD-IO_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PROD_DETLD-IO_LANGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field IO_CREATST
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_PROD_DETLD-IO_CREATST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PROD_DETLD-IO_CREATST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field IO_CHNGTIM
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_PROD_DETLD-IO_CHNGTIM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PROD_DETLD-IO_CHNGTIM.
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_PROD_DETLD_STR, 
TIMESTMP TYPE STRING,
CORE_CON TYPE STRING,
ENHANC TYPE STRING,
ENHANC_REL TYPE STRING,
PROD_NAME TYPE STRING,
PROD_REL TYPE STRING,
GBU_IBU TYPE STRING,
COMP_SCEN TYPE STRING,
LOIO TYPE STRING,
SUBTECHNAM TYPE STRING,
FOLD_TECHN TYPE STRING,
IO_TECHNAM TYPE STRING,
IO_SLANGU TYPE STRING,
IO_LANGU TYPE STRING,
STATE TYPE STRING,
PROD_OWNER TYPE STRING,
FOLD_TITLE TYPE STRING,
DELIVER TYPE STRING,
IO_ID TYPE STRING,
IO_CLASS TYPE STRING,
IO_NEWCHGD TYPE STRING,
IO_WRD_LAT TYPE STRING,
IO_WRD_FST TYPE STRING,
IO_WRD_DIF TYPE STRING,
IO_LIN_LAT TYPE STRING,
IO_LIN_FST TYPE STRING,
IO_LIN_DIF TYPE STRING,
IO_PAG_LAT TYPE STRING,
IO_PAG_FST TYPE STRING,
IO_PAG_DIF TYPE STRING,
IO_CREATST TYPE STRING,
IO_CHNGTIM TYPE STRING,
IO_TRNSST TYPE STRING,
IO_ICLASS TYPE STRING,
PHIO TYPE STRING,
SYSID TYPE STRING,
ERROR_STAT TYPE STRING,
REP_STAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PROD_DETLD_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_PROD_DETLD_STR-TIMESTMP sy-vline 
WA_PROD_DETLD_STR-CORE_CON sy-vline 
WA_PROD_DETLD_STR-ENHANC sy-vline 
WA_PROD_DETLD_STR-ENHANC_REL sy-vline 
WA_PROD_DETLD_STR-PROD_NAME sy-vline 
WA_PROD_DETLD_STR-PROD_REL sy-vline 
WA_PROD_DETLD_STR-GBU_IBU sy-vline 
WA_PROD_DETLD_STR-COMP_SCEN sy-vline 
WA_PROD_DETLD_STR-LOIO sy-vline 
WA_PROD_DETLD_STR-SUBTECHNAM sy-vline 
WA_PROD_DETLD_STR-FOLD_TECHN sy-vline 
WA_PROD_DETLD_STR-IO_TECHNAM sy-vline 
WA_PROD_DETLD_STR-IO_SLANGU sy-vline 
WA_PROD_DETLD_STR-IO_LANGU sy-vline 
WA_PROD_DETLD_STR-STATE sy-vline 
WA_PROD_DETLD_STR-PROD_OWNER sy-vline 
WA_PROD_DETLD_STR-FOLD_TITLE sy-vline 
WA_PROD_DETLD_STR-DELIVER sy-vline 
WA_PROD_DETLD_STR-IO_ID sy-vline 
WA_PROD_DETLD_STR-IO_CLASS sy-vline 
WA_PROD_DETLD_STR-IO_NEWCHGD sy-vline 
WA_PROD_DETLD_STR-IO_WRD_LAT sy-vline 
WA_PROD_DETLD_STR-IO_WRD_FST sy-vline 
WA_PROD_DETLD_STR-IO_WRD_DIF sy-vline 
WA_PROD_DETLD_STR-IO_LIN_LAT sy-vline 
WA_PROD_DETLD_STR-IO_LIN_FST sy-vline 
WA_PROD_DETLD_STR-IO_LIN_DIF sy-vline 
WA_PROD_DETLD_STR-IO_PAG_LAT sy-vline 
WA_PROD_DETLD_STR-IO_PAG_FST sy-vline 
WA_PROD_DETLD_STR-IO_PAG_DIF sy-vline 
WA_PROD_DETLD_STR-IO_CREATST sy-vline 
WA_PROD_DETLD_STR-IO_CHNGTIM sy-vline 
WA_PROD_DETLD_STR-IO_TRNSST sy-vline 
WA_PROD_DETLD_STR-IO_ICLASS sy-vline 
WA_PROD_DETLD_STR-PHIO sy-vline 
WA_PROD_DETLD_STR-SYSID sy-vline 
WA_PROD_DETLD_STR-ERROR_STAT sy-vline 
WA_PROD_DETLD_STR-REP_STAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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