ABAP Select data from SAP table PRSHOPERRELAT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRSHOPERRELAT 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 PRSHOPERRELAT. 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 PRSHOPERRELAT 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_PRSHOPERRELAT TYPE STANDARD TABLE OF PRSHOPERRELAT,
      WA_PRSHOPERRELAT TYPE PRSHOPERRELAT,
      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: <PRSHOPERRELAT> TYPE PRSHOPERRELAT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRSHOPERRELAT
*  INTO TABLE @DATA(IT_PRSHOPERRELAT2).
*--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_PRSHOPERRELAT INDEX 1 INTO DATA(WA_PRSHOPERRELAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRSHOPERRELAT>-MANDT = 1.
<PRSHOPERRELAT>-PREDECESSORORDER = 1.
<PRSHOPERRELAT>-PREDECESSOROPERATION = 1.
<PRSHOPERRELAT>-SUCCESSORORDER = 1.
<PRSHOPERRELAT>-SUCCESSOROPERATION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRSHOPERRELAT-RELATIONTYPE, sy-vline,
  WA_PRSHOPERRELAT-OFFSETDURATION, sy-vline,
  WA_PRSHOPERRELAT-OFFSETDURATIONUNIT, sy-vline,
  WA_PRSHOPERRELAT-ISCROSSORDERRELATIONSHIP, sy-vline,
  WA_PRSHOPERRELAT-ISEXPLICITRELATIONSHIP, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_PRSHOPERRELAT 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_PRSHOPERRELAT 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_PRSHOPERRELAT INTO WA_PRSHOPERRELAT.


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

*Conversion exit NUMCV, internal->external for field PREDECESSOROPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PRSHOPERRELAT-PREDECESSOROPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRSHOPERRELAT-PREDECESSOROPERATION.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit NUMCV, internal->external for field SUCCESSOROPERATION
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_PRSHOPERRELAT-SUCCESSOROPERATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRSHOPERRELAT-SUCCESSOROPERATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OFFSETDURATIONUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PRSHOPERRELAT-OFFSETDURATIONUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRSHOPERRELAT-OFFSETDURATIONUNIT.
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_PRSHOPERRELAT_STR, 
MANDT TYPE STRING,
PREDECESSORORDER TYPE STRING,
PREDECESSOROPERATION TYPE STRING,
SUCCESSORORDER TYPE STRING,
SUCCESSOROPERATION TYPE STRING,
RELATIONTYPE TYPE STRING,
OFFSETDURATION TYPE STRING,
OFFSETDURATIONUNIT TYPE STRING,
ISCROSSORDERRELATIONSHIP TYPE STRING,
ISEXPLICITRELATIONSHIP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRSHOPERRELAT_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_PRSHOPERRELAT_STR-MANDT sy-vline 
WA_PRSHOPERRELAT_STR-PREDECESSORORDER sy-vline 
WA_PRSHOPERRELAT_STR-PREDECESSOROPERATION sy-vline 
WA_PRSHOPERRELAT_STR-SUCCESSORORDER sy-vline 
WA_PRSHOPERRELAT_STR-SUCCESSOROPERATION sy-vline 
WA_PRSHOPERRELAT_STR-RELATIONTYPE sy-vline 
WA_PRSHOPERRELAT_STR-OFFSETDURATION sy-vline 
WA_PRSHOPERRELAT_STR-OFFSETDURATIONUNIT sy-vline 
WA_PRSHOPERRELAT_STR-ISCROSSORDERRELATIONSHIP sy-vline 
WA_PRSHOPERRELAT_STR-ISEXPLICITRELATIONSHIP sy-vline      INTO ld_text SEPARATED BY SPACE.

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