ABAP Select data from SAP table IST_EXT_POS_DYNP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IST_EXT_POS_DYNP
*  INTO TABLE @DATA(IT_IST_EXT_POS_DYNP2).
*--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_IST_EXT_POS_DYNP INDEX 1 INTO DATA(WA_IST_EXT_POS_DYNP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IST_EXT_POS_DYNP>-CLIENT = 1.
<IST_EXT_POS_DYNP>-FRG_GUID = 1.
<IST_EXT_POS_DYNP>-VALID_FROM = 1.
<IST_EXT_POS_DYNP>-VALID_TO = 1.
<IST_EXT_POS_DYNP>-UPNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IST_EXT_POS_DYNP-HISTEX, sy-vline,
  WA_IST_EXT_POS_DYNP-ILGUID, sy-vline,
  WA_IST_EXT_POS_DYNP-ILGUID_DESC, sy-vline,
  WA_IST_EXT_POS_DYNP-EXTREF, sy-vline,
  WA_IST_EXT_POS_DYNP-EXTREF_DESC, sy-vline,
  WA_IST_EXT_POS_DYNP-SCORE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IST_EXT_POS_DYNP 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_IST_EXT_POS_DYNP 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_IST_EXT_POS_DYNP INTO WA_IST_EXT_POS_DYNP.


*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 TSTPS, internal->external for field VALID_FROM
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_IST_EXT_POS_DYNP-VALID_FROM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IST_EXT_POS_DYNP-VALID_FROM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field VALID_TO
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_IST_EXT_POS_DYNP-VALID_TO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IST_EXT_POS_DYNP-VALID_TO.
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_IST_EXT_POS_DYNP_STR, 
CLIENT TYPE STRING,
FRG_GUID TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
UPNAME TYPE STRING,
HISTEX TYPE STRING,
ILGUID TYPE STRING,
ILGUID_DESC TYPE STRING,
EXTREF TYPE STRING,
EXTREF_DESC TYPE STRING,
SCORE TYPE STRING,
SCORE_DESC TYPE STRING,
PROCESS TYPE STRING,
PROCESS_DESC TYPE STRING,
SELTYPE TYPE STRING,
SELTYPE_DESC TYPE STRING,
PRCPROC TYPE STRING,
PRCPROC_DESC TYPE STRING,
PROC_ID TYPE STRING,
PROC_ID_DESC TYPE STRING,
SCGROUP TYPE STRING,
SCGROUP_DESC TYPE STRING,
SERVTYP TYPE STRING,
SERVTYP_DESC TYPE STRING,
LOCKRSN TYPE STRING,
LOCKRSN_DESC TYPE STRING,
SCAUTH TYPE STRING,
SCAUTH_DESC TYPE STRING,
SCDOCID TYPE STRING,
SCDOCID_DESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IST_EXT_POS_DYNP_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_IST_EXT_POS_DYNP_STR-CLIENT sy-vline 
WA_IST_EXT_POS_DYNP_STR-FRG_GUID sy-vline 
WA_IST_EXT_POS_DYNP_STR-VALID_FROM sy-vline 
WA_IST_EXT_POS_DYNP_STR-VALID_TO sy-vline 
WA_IST_EXT_POS_DYNP_STR-UPNAME sy-vline 
WA_IST_EXT_POS_DYNP_STR-HISTEX sy-vline 
WA_IST_EXT_POS_DYNP_STR-ILGUID sy-vline 
WA_IST_EXT_POS_DYNP_STR-ILGUID_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-EXTREF sy-vline 
WA_IST_EXT_POS_DYNP_STR-EXTREF_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCORE sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCORE_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-PROCESS sy-vline 
WA_IST_EXT_POS_DYNP_STR-PROCESS_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-SELTYPE sy-vline 
WA_IST_EXT_POS_DYNP_STR-SELTYPE_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-PRCPROC sy-vline 
WA_IST_EXT_POS_DYNP_STR-PRCPROC_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-PROC_ID sy-vline 
WA_IST_EXT_POS_DYNP_STR-PROC_ID_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCGROUP sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCGROUP_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-SERVTYP sy-vline 
WA_IST_EXT_POS_DYNP_STR-SERVTYP_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-LOCKRSN sy-vline 
WA_IST_EXT_POS_DYNP_STR-LOCKRSN_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCAUTH sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCAUTH_DESC sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCDOCID sy-vline 
WA_IST_EXT_POS_DYNP_STR-SCDOCID_DESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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