ABAP Select data from SAP table P2AA_OH_SA into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2AA_OH_SA 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 P2AA_OH_SA. 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 P2AA_OH_SA 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_P2AA_OH_SA TYPE STANDARD TABLE OF P2AA_OH_SA,
      WA_P2AA_OH_SA TYPE P2AA_OH_SA,
      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: <P2AA_OH_SA> TYPE P2AA_OH_SA.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2AA_OH_SA.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2AA_OH_SA
  INTO TABLE IT_P2AA_OH_SA.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2AA_OH_SA
*  INTO TABLE @DATA(IT_P2AA_OH_SA2).
*--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_P2AA_OH_SA INDEX 1 INTO DATA(WA_P2AA_OH_SA2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2AA_OH_SA ASSIGNING <P2AA_OH_SA>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2AA_OH_SA>-MANDT = 1.
<P2AA_OH_SA>-DCT_PERNR = 1.
<P2AA_OH_SA>-DCT_SEQNR = 1.
<P2AA_OH_SA>-DCT_ROWID = 1.
<P2AA_OH_SA>-BEGDA = 1.

ENDLOOP.

LOOP AT IT_P2AA_OH_SA INTO WA_P2AA_OH_SA.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2AA_OH_SA-ENDDA, sy-vline,
  WA_P2AA_OH_SA-SUBTY, sy-vline,
  WA_P2AA_OH_SA-OBJPS, sy-vline,
  WA_P2AA_OH_SA-TRACE, sy-vline,
  WA_P2AA_OH_SA-OHSTS, sy-vline,
  WA_P2AA_OH_SA-STOPP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2AA_OH_SA 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_P2AA_OH_SA 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_P2AA_OH_SA INTO WA_P2AA_OH_SA.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P2AA_OH_SA_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
SUBTY TYPE STRING,
OBJPS TYPE STRING,
TRACE TYPE STRING,
OHSTS TYPE STRING,
STOPP TYPE STRING,
INJUY TYPE STRING,
CMPID TYPE STRING,
OHNAT TYPE STRING,
PAYWY TYPE STRING,
DYPER TYPE STRING,
DEGRE TYPE STRING,
LUMPN TYPE STRING,
LUMWY TYPE STRING,
BONDT TYPE STRING,
AGEGP TYPE STRING,
INDAG TYPE STRING,
DISGP TYPE STRING,
DEGR2 TYPE STRING,
BASMX TYPE STRING,
BASMI TYPE STRING,
BASWT TYPE STRING,
PRMWT TYPE STRING,
AMTCP TYPE STRING,
ALWGP TYPE STRING,
ALWC1 TYPE STRING,
ALWT1 TYPE STRING,
AMTV1 TYPE STRING,
AMTP1 TYPE STRING,
ALWC2 TYPE STRING,
ALWT2 TYPE STRING,
AMTV2 TYPE STRING,
AMTP2 TYPE STRING,
ALWC3 TYPE STRING,
ALWT3 TYPE STRING,
AMTV3 TYPE STRING,
AMTP3 TYPE STRING,
ALWC4 TYPE STRING,
ALWT4 TYPE STRING,
AMTV4 TYPE STRING,
AMTP4 TYPE STRING,
ALWC5 TYPE STRING,
ALWT5 TYPE STRING,
AMTV5 TYPE STRING,
AMTP5 TYPE STRING,
WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2AA_OH_SA_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_P2AA_OH_SA_STR-MANDT sy-vline 
WA_P2AA_OH_SA_STR-DCT_PERNR sy-vline 
WA_P2AA_OH_SA_STR-DCT_SEQNR sy-vline 
WA_P2AA_OH_SA_STR-DCT_ROWID sy-vline 
WA_P2AA_OH_SA_STR-BEGDA sy-vline 
WA_P2AA_OH_SA_STR-ENDDA sy-vline 
WA_P2AA_OH_SA_STR-SUBTY sy-vline 
WA_P2AA_OH_SA_STR-OBJPS sy-vline 
WA_P2AA_OH_SA_STR-TRACE sy-vline 
WA_P2AA_OH_SA_STR-OHSTS sy-vline 
WA_P2AA_OH_SA_STR-STOPP sy-vline 
WA_P2AA_OH_SA_STR-INJUY sy-vline 
WA_P2AA_OH_SA_STR-CMPID sy-vline 
WA_P2AA_OH_SA_STR-OHNAT sy-vline 
WA_P2AA_OH_SA_STR-PAYWY sy-vline 
WA_P2AA_OH_SA_STR-DYPER sy-vline 
WA_P2AA_OH_SA_STR-DEGRE sy-vline 
WA_P2AA_OH_SA_STR-LUMPN sy-vline 
WA_P2AA_OH_SA_STR-LUMWY sy-vline 
WA_P2AA_OH_SA_STR-BONDT sy-vline 
WA_P2AA_OH_SA_STR-AGEGP sy-vline 
WA_P2AA_OH_SA_STR-INDAG sy-vline 
WA_P2AA_OH_SA_STR-DISGP sy-vline 
WA_P2AA_OH_SA_STR-DEGR2 sy-vline 
WA_P2AA_OH_SA_STR-BASMX sy-vline 
WA_P2AA_OH_SA_STR-BASMI sy-vline 
WA_P2AA_OH_SA_STR-BASWT sy-vline 
WA_P2AA_OH_SA_STR-PRMWT sy-vline 
WA_P2AA_OH_SA_STR-AMTCP sy-vline 
WA_P2AA_OH_SA_STR-ALWGP sy-vline 
WA_P2AA_OH_SA_STR-ALWC1 sy-vline 
WA_P2AA_OH_SA_STR-ALWT1 sy-vline 
WA_P2AA_OH_SA_STR-AMTV1 sy-vline 
WA_P2AA_OH_SA_STR-AMTP1 sy-vline 
WA_P2AA_OH_SA_STR-ALWC2 sy-vline 
WA_P2AA_OH_SA_STR-ALWT2 sy-vline 
WA_P2AA_OH_SA_STR-AMTV2 sy-vline 
WA_P2AA_OH_SA_STR-AMTP2 sy-vline 
WA_P2AA_OH_SA_STR-ALWC3 sy-vline 
WA_P2AA_OH_SA_STR-ALWT3 sy-vline 
WA_P2AA_OH_SA_STR-AMTV3 sy-vline 
WA_P2AA_OH_SA_STR-AMTP3 sy-vline 
WA_P2AA_OH_SA_STR-ALWC4 sy-vline 
WA_P2AA_OH_SA_STR-ALWT4 sy-vline 
WA_P2AA_OH_SA_STR-AMTV4 sy-vline 
WA_P2AA_OH_SA_STR-AMTP4 sy-vline 
WA_P2AA_OH_SA_STR-ALWC5 sy-vline 
WA_P2AA_OH_SA_STR-ALWT5 sy-vline 
WA_P2AA_OH_SA_STR-AMTV5 sy-vline 
WA_P2AA_OH_SA_STR-AMTP5 sy-vline 
WA_P2AA_OH_SA_STR-WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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