ABAP Select data from SAP table ISTRPICKREQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISTRPICKREQ
*  INTO TABLE @DATA(IT_ISTRPICKREQ2).
*--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_ISTRPICKREQ INDEX 1 INTO DATA(WA_ISTRPICKREQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISTRPICKREQ>-MANDT = 1.
<ISTRPICKREQ>-STORE = 1.
<ISTRPICKREQ>-STOREPICKINGREQUEST = 1.
<ISTRPICKREQ>-STOREREFERENCEORDER = 1.
<ISTRPICKREQ>-STOREREFERENCEDOCUMENTTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISTRPICKREQ-STOREPLANNEDPICKINGDATETIME, sy-vline,
  WA_ISTRPICKREQ-STOREPICKINGREQUESTSTATUS, sy-vline,
  WA_ISTRPICKREQ-HANDOVERSHELFSPACEID, sy-vline,
  WA_ISTRPICKREQ-USERASSIGNEDTOPICKINGREQUEST, sy-vline,
  WA_ISTRPICKREQ-GROSSWEIGHT, sy-vline,
  WA_ISTRPICKREQ-WEIGHTUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISTRPICKREQ 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_ISTRPICKREQ 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_ISTRPICKREQ INTO WA_ISTRPICKREQ.


*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 STOREPICKINGREQUEST
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISTRPICKREQ-STOREPICKINGREQUEST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISTRPICKREQ-STOREPICKINGREQUEST.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field VOLUMEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_ISTRPICKREQ-VOLUMEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISTRPICKREQ-VOLUMEUNIT.
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_ISTRPICKREQ_STR, 
MANDT TYPE STRING,
STORE TYPE STRING,
STOREPICKINGREQUEST TYPE STRING,
STOREREFERENCEORDER TYPE STRING,
STOREREFERENCEDOCUMENTTYPE TYPE STRING,
STOREPLANNEDPICKINGDATETIME TYPE STRING,
STOREPICKINGREQUESTSTATUS TYPE STRING,
HANDOVERSHELFSPACEID TYPE STRING,
USERASSIGNEDTOPICKINGREQUEST TYPE STRING,
GROSSWEIGHT TYPE STRING,
WEIGHTUNIT TYPE STRING,
GROSSVOLUME TYPE STRING,
VOLUMEUNIT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISTRPICKREQ_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_ISTRPICKREQ_STR-MANDT sy-vline 
WA_ISTRPICKREQ_STR-STORE sy-vline 
WA_ISTRPICKREQ_STR-STOREPICKINGREQUEST sy-vline 
WA_ISTRPICKREQ_STR-STOREREFERENCEORDER sy-vline 
WA_ISTRPICKREQ_STR-STOREREFERENCEDOCUMENTTYPE sy-vline 
WA_ISTRPICKREQ_STR-STOREPLANNEDPICKINGDATETIME sy-vline 
WA_ISTRPICKREQ_STR-STOREPICKINGREQUESTSTATUS sy-vline 
WA_ISTRPICKREQ_STR-HANDOVERSHELFSPACEID sy-vline 
WA_ISTRPICKREQ_STR-USERASSIGNEDTOPICKINGREQUEST sy-vline 
WA_ISTRPICKREQ_STR-GROSSWEIGHT sy-vline 
WA_ISTRPICKREQ_STR-WEIGHTUNIT sy-vline 
WA_ISTRPICKREQ_STR-GROSSVOLUME sy-vline 
WA_ISTRPICKREQ_STR-VOLUMEUNIT sy-vline      INTO ld_text SEPARATED BY SPACE.

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