ABAP Select data from SAP table PCA_PR1_ADD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PCA_PR1_ADD 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 PCA_PR1_ADD. 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 PCA_PR1_ADD 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_PCA_PR1_ADD TYPE STANDARD TABLE OF PCA_PR1_ADD,
      WA_PCA_PR1_ADD TYPE PCA_PR1_ADD,
      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: <PCA_PR1_ADD> TYPE PCA_PR1_ADD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PCA_PR1_ADD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PCA_PR1_ADD
  INTO TABLE IT_PCA_PR1_ADD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PCA_PR1_ADD
*  INTO TABLE @DATA(IT_PCA_PR1_ADD2).
*--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_PCA_PR1_ADD INDEX 1 INTO DATA(WA_PCA_PR1_ADD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PCA_PR1_ADD ASSIGNING <PCA_PR1_ADD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PCA_PR1_ADD>-PRCTR = 1.
<PCA_PR1_ADD>-PPRCTR = 1.
<PCA_PR1_ADD>-UMPRC = 1.
<PCA_PR1_ADD>-BUDAT = 1.
<PCA_PR1_ADD>-GLVOR = 1.

ENDLOOP.

LOOP AT IT_PCA_PR1_ADD INTO WA_PCA_PR1_ADD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PCA_PR1_ADD-BWART, sy-vline,
  WA_PCA_PR1_ADD-KZBEW, sy-vline,
  WA_PCA_PR1_ADD-BKLAS, sy-vline,
  WA_PCA_PR1_ADD-BWMOD, sy-vline,
  WA_PCA_PR1_ADD-MTART, sy-vline,
  WA_PCA_PR1_ADD-MATKL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PCA_PR1_ADD 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_PCA_PR1_ADD 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_PCA_PR1_ADD INTO WA_PCA_PR1_ADD.


*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 PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_PR1_ADD-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_PR1_ADD-PRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PPRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_PR1_ADD-PPRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_PR1_ADD-PPRCTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field UMPRC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_PR1_ADD-UMPRC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_PR1_ADD-UMPRC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PCA_PR1_ADD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_PR1_ADD-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field EXWRT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_PCA_PR1_ADD-EXWRT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_PR1_ADD-EXWRT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TP_VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_PR1_ADD-TP_VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_PR1_ADD-TP_VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TP_EBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PCA_PR1_ADD-TP_EBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PCA_PR1_ADD-TP_EBELN.
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_PCA_PR1_ADD_STR, 
PRCTR TYPE STRING,
PPRCTR TYPE STRING,
UMPRC TYPE STRING,
BUDAT TYPE STRING,
GLVOR TYPE STRING,
BWART TYPE STRING,
KZBEW TYPE STRING,
BKLAS TYPE STRING,
BWMOD TYPE STRING,
MTART TYPE STRING,
MATKL TYPE STRING,
SPART TYPE STRING,
KOKRS TYPE STRING,
BUKRS TYPE STRING,
KZUML TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
EXWRT TYPE STRING,
XPGTP TYPE STRING,
TP_VBELN TYPE STRING,
TP_POSNR TYPE STRING,
TP_EBELN TYPE STRING,
TP_EBELP TYPE STRING,
TP_BWART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PCA_PR1_ADD_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_PCA_PR1_ADD_STR-PRCTR sy-vline 
WA_PCA_PR1_ADD_STR-PPRCTR sy-vline 
WA_PCA_PR1_ADD_STR-UMPRC sy-vline 
WA_PCA_PR1_ADD_STR-BUDAT sy-vline 
WA_PCA_PR1_ADD_STR-GLVOR sy-vline 
WA_PCA_PR1_ADD_STR-BWART sy-vline 
WA_PCA_PR1_ADD_STR-KZBEW sy-vline 
WA_PCA_PR1_ADD_STR-BKLAS sy-vline 
WA_PCA_PR1_ADD_STR-BWMOD sy-vline 
WA_PCA_PR1_ADD_STR-MTART sy-vline 
WA_PCA_PR1_ADD_STR-MATKL sy-vline 
WA_PCA_PR1_ADD_STR-SPART sy-vline 
WA_PCA_PR1_ADD_STR-KOKRS sy-vline 
WA_PCA_PR1_ADD_STR-BUKRS sy-vline 
WA_PCA_PR1_ADD_STR-KZUML sy-vline 
WA_PCA_PR1_ADD_STR-MENGE sy-vline 
WA_PCA_PR1_ADD_STR-MEINS sy-vline 
WA_PCA_PR1_ADD_STR-EXWRT sy-vline 
WA_PCA_PR1_ADD_STR-XPGTP sy-vline 
WA_PCA_PR1_ADD_STR-TP_VBELN sy-vline 
WA_PCA_PR1_ADD_STR-TP_POSNR sy-vline 
WA_PCA_PR1_ADD_STR-TP_EBELN sy-vline 
WA_PCA_PR1_ADD_STR-TP_EBELP sy-vline 
WA_PCA_PR1_ADD_STR-TP_BWART sy-vline      INTO ld_text SEPARATED BY SPACE.

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