ABAP Select data from SAP table ADPIC_S_POSCHEDULE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ADPIC_S_POSCHEDULE
*  INTO TABLE @DATA(IT_ADPIC_S_POSCHEDULE2).
*--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_ADPIC_S_POSCHEDULE INDEX 1 INTO DATA(WA_ADPIC_S_POSCHEDULE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ADPIC_S_POSCHEDULE>-LINE_ID = 1.
<ADPIC_S_POSCHEDULE>-PO_ITEM = 1.
<ADPIC_S_POSCHEDULE>-SCHED_LINE = 1.
<ADPIC_S_POSCHEDULE>-DEL_DATCAT_EXT = 1.
<ADPIC_S_POSCHEDULE>-DELIVERY_DATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ADPIC_S_POSCHEDULE-QUANTITY, sy-vline,
  WA_ADPIC_S_POSCHEDULE-DELIV_TIME, sy-vline,
  WA_ADPIC_S_POSCHEDULE-STAT_DATE, sy-vline,
  WA_ADPIC_S_POSCHEDULE-PREQ_NO, sy-vline,
  WA_ADPIC_S_POSCHEDULE-PREQ_ITEM, sy-vline,
  WA_ADPIC_S_POSCHEDULE-PO_DATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ADPIC_S_POSCHEDULE 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_ADPIC_S_POSCHEDULE 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_ADPIC_S_POSCHEDULE INTO WA_ADPIC_S_POSCHEDULE.


*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 PREQ_NO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ADPIC_S_POSCHEDULE-PREQ_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ADPIC_S_POSCHEDULE-PREQ_NO.
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_ADPIC_S_POSCHEDULE_STR, 
LINE_ID TYPE STRING,
PO_ITEM TYPE STRING,
SCHED_LINE TYPE STRING,
DEL_DATCAT_EXT TYPE STRING,
DELIVERY_DATE TYPE STRING,
QUANTITY TYPE STRING,
DELIV_TIME TYPE STRING,
STAT_DATE TYPE STRING,
PREQ_NO TYPE STRING,
PREQ_ITEM TYPE STRING,
PO_DATE TYPE STRING,
ROUTESCHED TYPE STRING,
MS_DATE TYPE STRING,
MS_TIME TYPE STRING,
LOAD_DATE TYPE STRING,
LOAD_TIME TYPE STRING,
TP_DATE TYPE STRING,
TP_TIME TYPE STRING,
GI_DATE TYPE STRING,
GI_TIME TYPE STRING,
DELETE_IND TYPE STRING,
REQ_CLOSED TYPE STRING,
GR_END_DATE TYPE STRING,
GR_END_TIME TYPE STRING,
COM_QTY TYPE STRING,
COM_DATE TYPE STRING,
GEO_ROUTE TYPE STRING,
HANDOVERDATE TYPE STRING,
HANDOVERTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ADPIC_S_POSCHEDULE_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_ADPIC_S_POSCHEDULE_STR-LINE_ID sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-PO_ITEM sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-SCHED_LINE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-DEL_DATCAT_EXT sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-DELIVERY_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-QUANTITY sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-DELIV_TIME sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-STAT_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-PREQ_NO sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-PREQ_ITEM sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-PO_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-ROUTESCHED sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-MS_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-MS_TIME sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-LOAD_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-LOAD_TIME sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-TP_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-TP_TIME sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-GI_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-GI_TIME sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-DELETE_IND sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-REQ_CLOSED sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-GR_END_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-GR_END_TIME sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-COM_QTY sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-COM_DATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-GEO_ROUTE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-HANDOVERDATE sy-vline 
WA_ADPIC_S_POSCHEDULE_STR-HANDOVERTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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