ABAP Select data from SAP table APOREQ into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM APOREQ
*  INTO TABLE @DATA(IT_APOREQ2).
*--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_APOREQ INDEX 1 INTO DATA(WA_APOREQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<APOREQ>-IDX = 1.
<APOREQ>-REQGRPIDX = 1.
<APOREQ>-LOGQS = 1.
<APOREQ>-LOGSYS = 1.
<APOREQ>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_APOREQ-EXTLOCNO, sy-vline,
  WA_APOREQ-LOCTYPE, sy-vline,
  WA_APOREQ-SOBKZ, sy-vline,
  WA_APOREQ-SSKEY, sy-vline,
  WA_APOREQ-ATPCAT, sy-vline,
  WA_APOREQ-SUBLOC, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_APOREQ 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_APOREQ 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_APOREQ INTO WA_APOREQ.


*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 LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_APOREQ-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_APOREQ-LOGSYS.
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_APOREQ_STR, 
IDX TYPE STRING,
REQGRPIDX TYPE STRING,
LOGQS TYPE STRING,
LOGSYS TYPE STRING,
MATNR TYPE STRING,
EXTLOCNO TYPE STRING,
LOCTYPE TYPE STRING,
SOBKZ TYPE STRING,
SSKEY TYPE STRING,
ATPCAT TYPE STRING,
SUBLOC TYPE STRING,
VERSION TYPE STRING,
TRTYP TYPE STRING,
PRREG TYPE STRING,
CHMOD TYPE STRING,
DMALL TYPE STRING,
TZONE TYPE STRING,
ORDID TYPE STRING,
DELNR TYPE STRING,
DELPS TYPE STRING,
POSGUID TYPE STRING,
TMPFLG TYPE STRING,
DELTAIND TYPE STRING,
CHKFLG TYPE STRING,
UPDIND TYPE STRING,
TCCFLG TYPE STRING,
FIXQFLG TYPE STRING,
FIXTQFLG TYPE STRING,
ERRFLG TYPE STRING,
SYSIND TYPE STRING,
RESMOD TYPE STRING,
TPROC TYPE STRING,
BPROC TYPE STRING,
ACTYP TYPE STRING,
SUREA TYPE STRING,
CUOBJ TYPE STRING,
SUBGRPIDX TYPE STRING,
SUBGRPSEQ TYPE STRING,
SLCFLG TYPE STRING,
RRFLG TYPE STRING,
REQPRF TYPE STRING,
SCHIND TYPE STRING,
TIMETYPE TYPE STRING,
TTYPE TYPE STRING,
PERSID TYPE STRING,
STRUCIND TYPE STRING,
ORDERCAT TYPE STRING,
KOSCH TYPE STRING,
DUR_TIMEST TYPE STRING,
CUST_IND TYPE STRING,
PSSPARAM TYPE STRING,
ROUNDING TYPE STRING,
OVRLOC TYPE STRING,
OVRLOCTYPE TYPE STRING,
QUANFAC TYPE STRING,
QUANDIV TYPE STRING,
CONSLOC TYPE STRING,
CONSLOCTYP TYPE STRING,
DIRECTSHIP TYPE STRING,
DELGRPCORR TYPE STRING,
OVRNUMLOC TYPE STRING,
OVRNUMSHIP TYPE STRING,
RESPRODSUB TYPE STRING,
DVLLOCNO TYPE STRING,
DVLLOCTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_APOREQ_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_APOREQ_STR-IDX sy-vline 
WA_APOREQ_STR-REQGRPIDX sy-vline 
WA_APOREQ_STR-LOGQS sy-vline 
WA_APOREQ_STR-LOGSYS sy-vline 
WA_APOREQ_STR-MATNR sy-vline 
WA_APOREQ_STR-EXTLOCNO sy-vline 
WA_APOREQ_STR-LOCTYPE sy-vline 
WA_APOREQ_STR-SOBKZ sy-vline 
WA_APOREQ_STR-SSKEY sy-vline 
WA_APOREQ_STR-ATPCAT sy-vline 
WA_APOREQ_STR-SUBLOC sy-vline 
WA_APOREQ_STR-VERSION sy-vline 
WA_APOREQ_STR-TRTYP sy-vline 
WA_APOREQ_STR-PRREG sy-vline 
WA_APOREQ_STR-CHMOD sy-vline 
WA_APOREQ_STR-DMALL sy-vline 
WA_APOREQ_STR-TZONE sy-vline 
WA_APOREQ_STR-ORDID sy-vline 
WA_APOREQ_STR-DELNR sy-vline 
WA_APOREQ_STR-DELPS sy-vline 
WA_APOREQ_STR-POSGUID sy-vline 
WA_APOREQ_STR-TMPFLG sy-vline 
WA_APOREQ_STR-DELTAIND sy-vline 
WA_APOREQ_STR-CHKFLG sy-vline 
WA_APOREQ_STR-UPDIND sy-vline 
WA_APOREQ_STR-TCCFLG sy-vline 
WA_APOREQ_STR-FIXQFLG sy-vline 
WA_APOREQ_STR-FIXTQFLG sy-vline 
WA_APOREQ_STR-ERRFLG sy-vline 
WA_APOREQ_STR-SYSIND sy-vline 
WA_APOREQ_STR-RESMOD sy-vline 
WA_APOREQ_STR-TPROC sy-vline 
WA_APOREQ_STR-BPROC sy-vline 
WA_APOREQ_STR-ACTYP sy-vline 
WA_APOREQ_STR-SUREA sy-vline 
WA_APOREQ_STR-CUOBJ sy-vline 
WA_APOREQ_STR-SUBGRPIDX sy-vline 
WA_APOREQ_STR-SUBGRPSEQ sy-vline 
WA_APOREQ_STR-SLCFLG sy-vline 
WA_APOREQ_STR-RRFLG sy-vline 
WA_APOREQ_STR-REQPRF sy-vline 
WA_APOREQ_STR-SCHIND sy-vline 
WA_APOREQ_STR-TIMETYPE sy-vline 
WA_APOREQ_STR-TTYPE sy-vline 
WA_APOREQ_STR-PERSID sy-vline 
WA_APOREQ_STR-STRUCIND sy-vline 
WA_APOREQ_STR-ORDERCAT sy-vline 
WA_APOREQ_STR-KOSCH sy-vline 
WA_APOREQ_STR-DUR_TIMEST sy-vline 
WA_APOREQ_STR-CUST_IND sy-vline 
WA_APOREQ_STR-PSSPARAM sy-vline 
WA_APOREQ_STR-ROUNDING sy-vline 
WA_APOREQ_STR-OVRLOC sy-vline 
WA_APOREQ_STR-OVRLOCTYPE sy-vline 
WA_APOREQ_STR-QUANFAC sy-vline 
WA_APOREQ_STR-QUANDIV sy-vline 
WA_APOREQ_STR-CONSLOC sy-vline 
WA_APOREQ_STR-CONSLOCTYP sy-vline 
WA_APOREQ_STR-DIRECTSHIP sy-vline 
WA_APOREQ_STR-DELGRPCORR sy-vline 
WA_APOREQ_STR-OVRNUMLOC sy-vline 
WA_APOREQ_STR-OVRNUMSHIP sy-vline 
WA_APOREQ_STR-RESPRODSUB sy-vline 
WA_APOREQ_STR-DVLLOCNO sy-vline 
WA_APOREQ_STR-DVLLOCTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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