ABAP Select data from SAP table PRU_GARN_DOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRU_GARN_DOC
*  INTO TABLE @DATA(IT_PRU_GARN_DOC2).
*--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_PRU_GARN_DOC INDEX 1 INTO DATA(WA_PRU_GARN_DOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRU_GARN_DOC>-PERNR = 1.
<PRU_GARN_DOC>-BEGDA = 1.
<PRU_GARN_DOC>-ENDDA = 1.
<PRU_GARN_DOC>-DOCTX = 1.
<PRU_GARN_DOC>-DOCTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRU_GARN_DOC-ENNUM, sy-vline,
  WA_PRU_GARN_DOC-ESDAT, sy-vline,
  WA_PRU_GARN_DOC-GCASE, sy-vline,
  WA_PRU_GARN_DOC-GCATE, sy-vline,
  WA_PRU_GARN_DOC-GCATX, sy-vline,
  WA_PRU_GARN_DOC-GRNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRU_GARN_DOC 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_PRU_GARN_DOC 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_PRU_GARN_DOC INTO WA_PRU_GARN_DOC.


*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 LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRU_GARN_DOC-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRU_GARN_DOC-LIFNR.
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_PRU_GARN_DOC_STR, 
PERNR TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
DOCTX TYPE STRING,
DOCTY TYPE STRING,
ENNUM TYPE STRING,
ESDAT TYPE STRING,
GCASE TYPE STRING,
GCATE TYPE STRING,
GCATX TYPE STRING,
GRNUM TYPE STRING,
GSTAT TYPE STRING,
GSTATTXT TYPE STRING,
RCVDD TYPE STRING,
BANKS TYPE STRING,
EMFTX TYPE STRING,
LAND1 TYPE STRING,
LIFNR TYPE STRING,
ORCNT TYPE STRING,
ORCNTTX TYPE STRING,
ORCOD TYPE STRING,
ORCODTX TYPE STRING,
ORICN TYPE STRING,
ORICNTX TYPE STRING,
ORIGN TYPE STRING,
ORIGNTX TYPE STRING,
ORNAM TYPE STRING,
ORORT TYPE STRING,
ORPLZ TYPE STRING,
ORREG TYPE STRING,
ORREGTX TYPE STRING,
ORSTR TYPE STRING,
ORT01 TYPE STRING,
OUTAU TYPE STRING,
OUTDT TYPE STRING,
OUTNU TYPE STRING,
PSTLZ TYPE STRING,
RLSDD TYPE STRING,
STATE TYPE STRING,
STRAS TYPE STRING,
TEXT1 TYPE STRING,
ZLSCH TYPE STRING,
BANKN TYPE STRING,
BANK_NUMBER TYPE STRING,
BKONT TYPE STRING,
BKREF TYPE STRING,
COUNTRY TYPE STRING,
DIRECT_DEPOSIT TYPE STRING,
ACCOUNT_NUM TYPE STRING,
BANKL TYPE STRING,
BNKNU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRU_GARN_DOC_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_PRU_GARN_DOC_STR-PERNR sy-vline 
WA_PRU_GARN_DOC_STR-BEGDA sy-vline 
WA_PRU_GARN_DOC_STR-ENDDA sy-vline 
WA_PRU_GARN_DOC_STR-DOCTX sy-vline 
WA_PRU_GARN_DOC_STR-DOCTY sy-vline 
WA_PRU_GARN_DOC_STR-ENNUM sy-vline 
WA_PRU_GARN_DOC_STR-ESDAT sy-vline 
WA_PRU_GARN_DOC_STR-GCASE sy-vline 
WA_PRU_GARN_DOC_STR-GCATE sy-vline 
WA_PRU_GARN_DOC_STR-GCATX sy-vline 
WA_PRU_GARN_DOC_STR-GRNUM sy-vline 
WA_PRU_GARN_DOC_STR-GSTAT sy-vline 
WA_PRU_GARN_DOC_STR-GSTATTXT sy-vline 
WA_PRU_GARN_DOC_STR-RCVDD sy-vline 
WA_PRU_GARN_DOC_STR-BANKS sy-vline 
WA_PRU_GARN_DOC_STR-EMFTX sy-vline 
WA_PRU_GARN_DOC_STR-LAND1 sy-vline 
WA_PRU_GARN_DOC_STR-LIFNR sy-vline 
WA_PRU_GARN_DOC_STR-ORCNT sy-vline 
WA_PRU_GARN_DOC_STR-ORCNTTX sy-vline 
WA_PRU_GARN_DOC_STR-ORCOD sy-vline 
WA_PRU_GARN_DOC_STR-ORCODTX sy-vline 
WA_PRU_GARN_DOC_STR-ORICN sy-vline 
WA_PRU_GARN_DOC_STR-ORICNTX sy-vline 
WA_PRU_GARN_DOC_STR-ORIGN sy-vline 
WA_PRU_GARN_DOC_STR-ORIGNTX sy-vline 
WA_PRU_GARN_DOC_STR-ORNAM sy-vline 
WA_PRU_GARN_DOC_STR-ORORT sy-vline 
WA_PRU_GARN_DOC_STR-ORPLZ sy-vline 
WA_PRU_GARN_DOC_STR-ORREG sy-vline 
WA_PRU_GARN_DOC_STR-ORREGTX sy-vline 
WA_PRU_GARN_DOC_STR-ORSTR sy-vline 
WA_PRU_GARN_DOC_STR-ORT01 sy-vline 
WA_PRU_GARN_DOC_STR-OUTAU sy-vline 
WA_PRU_GARN_DOC_STR-OUTDT sy-vline 
WA_PRU_GARN_DOC_STR-OUTNU sy-vline 
WA_PRU_GARN_DOC_STR-PSTLZ sy-vline 
WA_PRU_GARN_DOC_STR-RLSDD sy-vline 
WA_PRU_GARN_DOC_STR-STATE sy-vline 
WA_PRU_GARN_DOC_STR-STRAS sy-vline 
WA_PRU_GARN_DOC_STR-TEXT1 sy-vline 
WA_PRU_GARN_DOC_STR-ZLSCH sy-vline 
WA_PRU_GARN_DOC_STR-BANKN sy-vline 
WA_PRU_GARN_DOC_STR-BANK_NUMBER sy-vline 
WA_PRU_GARN_DOC_STR-BKONT sy-vline 
WA_PRU_GARN_DOC_STR-BKREF sy-vline 
WA_PRU_GARN_DOC_STR-COUNTRY sy-vline 
WA_PRU_GARN_DOC_STR-DIRECT_DEPOSIT sy-vline 
WA_PRU_GARN_DOC_STR-ACCOUNT_NUM sy-vline 
WA_PRU_GARN_DOC_STR-BANKL sy-vline 
WA_PRU_GARN_DOC_STR-BNKNU sy-vline      INTO ld_text SEPARATED BY SPACE.

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