ABAP Select data from SAP table PIQCA_P1702 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PIQCA_P1702 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 PIQCA_P1702. 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 PIQCA_P1702 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_PIQCA_P1702 TYPE STANDARD TABLE OF PIQCA_P1702,
      WA_PIQCA_P1702 TYPE PIQCA_P1702,
      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: <PIQCA_P1702> TYPE PIQCA_P1702.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PIQCA_P1702.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PIQCA_P1702
  INTO TABLE IT_PIQCA_P1702.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PIQCA_P1702
*  INTO TABLE @DATA(IT_PIQCA_P17022).
*--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_PIQCA_P1702 INDEX 1 INTO DATA(WA_PIQCA_P17022).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PIQCA_P1702 ASSIGNING <PIQCA_P1702>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PIQCA_P1702>-MANDT = 1.
<PIQCA_P1702>-PLVAR = 1.
<PIQCA_P1702>-OTYPE = 1.
<PIQCA_P1702>-OBJID = 1.
<PIQCA_P1702>-INFTY = 1.

ENDLOOP.

LOOP AT IT_PIQCA_P1702 INTO WA_PIQCA_P1702.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PIQCA_P1702-SUBTY, sy-vline,
  WA_PIQCA_P1702-ISTAT, sy-vline,
  WA_PIQCA_P1702-PRIOX, sy-vline,
  WA_PIQCA_P1702-BEGDA, sy-vline,
  WA_PIQCA_P1702-ENDDA, sy-vline,
  WA_PIQCA_P1702-VARYF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PIQCA_P1702 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_PIQCA_P1702 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_PIQCA_P1702 INTO WA_PIQCA_P1702.


*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 PDATE, internal->external for field GBDAT
CALL FUNCTION 'CONVERSION_EXIT_PDATE_OUTPUT'
  EXPORTING
    input =                      WA_PIQCA_P1702-GBDAT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQCA_P1702-GBDAT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PIQCA_P1702-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PIQCA_P1702-LANGU.
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_PIQCA_P1702_STR, 
MANDT TYPE STRING,
PLVAR TYPE STRING,
OTYPE TYPE STRING,
OBJID TYPE STRING,
INFTY TYPE STRING,
SUBTY TYPE STRING,
ISTAT TYPE STRING,
PRIOX TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
VARYF TYPE STRING,
SEQNR TYPE STRING,
AEDTM TYPE STRING,
UNAME TYPE STRING,
REASN TYPE STRING,
HISTO TYPE STRING,
ITXNR TYPE STRING,
NACHN TYPE STRING,
VORNA TYPE STRING,
MIDNM TYPE STRING,
INITS TYPE STRING,
BIRTHNAME TYPE STRING,
TITEL TYPE STRING,
VORSW TYPE STRING,
NAMZU TYPE STRING,
RUFNM TYPE STRING,
GBDAT TYPE STRING,
GBLND TYPE STRING,
GBDEP TYPE STRING,
GBORT TYPE STRING,
GBNAT TYPE STRING,
NATIO TYPE STRING,
NATI2 TYPE STRING,
NATI3 TYPE STRING,
LANGU TYPE STRING,
ANRED TYPE STRING,
GESCH TYPE STRING,
FAMST TYPE STRING,
PRDNI TYPE STRING,
NACHN_MC TYPE STRING,
VORNA_MC TYPE STRING,
DEATHDATE TYPE STRING,
DREGDATE TYPE STRING,
BIRTHNAME_MC TYPE STRING,
MIDNM_MC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PIQCA_P1702_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_PIQCA_P1702_STR-MANDT sy-vline 
WA_PIQCA_P1702_STR-PLVAR sy-vline 
WA_PIQCA_P1702_STR-OTYPE sy-vline 
WA_PIQCA_P1702_STR-OBJID sy-vline 
WA_PIQCA_P1702_STR-INFTY sy-vline 
WA_PIQCA_P1702_STR-SUBTY sy-vline 
WA_PIQCA_P1702_STR-ISTAT sy-vline 
WA_PIQCA_P1702_STR-PRIOX sy-vline 
WA_PIQCA_P1702_STR-BEGDA sy-vline 
WA_PIQCA_P1702_STR-ENDDA sy-vline 
WA_PIQCA_P1702_STR-VARYF sy-vline 
WA_PIQCA_P1702_STR-SEQNR sy-vline 
WA_PIQCA_P1702_STR-AEDTM sy-vline 
WA_PIQCA_P1702_STR-UNAME sy-vline 
WA_PIQCA_P1702_STR-REASN sy-vline 
WA_PIQCA_P1702_STR-HISTO sy-vline 
WA_PIQCA_P1702_STR-ITXNR sy-vline 
WA_PIQCA_P1702_STR-NACHN sy-vline 
WA_PIQCA_P1702_STR-VORNA sy-vline 
WA_PIQCA_P1702_STR-MIDNM sy-vline 
WA_PIQCA_P1702_STR-INITS sy-vline 
WA_PIQCA_P1702_STR-BIRTHNAME sy-vline 
WA_PIQCA_P1702_STR-TITEL sy-vline 
WA_PIQCA_P1702_STR-VORSW sy-vline 
WA_PIQCA_P1702_STR-NAMZU sy-vline 
WA_PIQCA_P1702_STR-RUFNM sy-vline 
WA_PIQCA_P1702_STR-GBDAT sy-vline 
WA_PIQCA_P1702_STR-GBLND sy-vline 
WA_PIQCA_P1702_STR-GBDEP sy-vline 
WA_PIQCA_P1702_STR-GBORT sy-vline 
WA_PIQCA_P1702_STR-GBNAT sy-vline 
WA_PIQCA_P1702_STR-NATIO sy-vline 
WA_PIQCA_P1702_STR-NATI2 sy-vline 
WA_PIQCA_P1702_STR-NATI3 sy-vline 
WA_PIQCA_P1702_STR-LANGU sy-vline 
WA_PIQCA_P1702_STR-ANRED sy-vline 
WA_PIQCA_P1702_STR-GESCH sy-vline 
WA_PIQCA_P1702_STR-FAMST sy-vline 
WA_PIQCA_P1702_STR-PRDNI sy-vline 
WA_PIQCA_P1702_STR-NACHN_MC sy-vline 
WA_PIQCA_P1702_STR-VORNA_MC sy-vline 
WA_PIQCA_P1702_STR-DEATHDATE sy-vline 
WA_PIQCA_P1702_STR-DREGDATE sy-vline 
WA_PIQCA_P1702_STR-BIRTHNAME_MC sy-vline 
WA_PIQCA_P1702_STR-MIDNM_MC sy-vline      INTO ld_text SEPARATED BY SPACE.

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