ABAP Select data from SAP table OIRA_PC_PARAMETERS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIRA_PC_PARAMETERS
*  INTO TABLE @DATA(IT_OIRA_PC_PARAMETERS2).
*--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_OIRA_PC_PARAMETERS INDEX 1 INTO DATA(WA_OIRA_PC_PARAMETERS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIRA_PC_PARAMETERS>-PROCESS = 1.
<OIRA_PC_PARAMETERS>-PCGROUP = 1.
<OIRA_PC_PARAMETERS>-RNBT = 1.
<OIRA_PC_PARAMETERS>-EXECUTION_DATE = 1.
<OIRA_PC_PARAMETERS>-OBJECT_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIRA_PC_PARAMETERS-OBJECT, sy-vline,
  WA_OIRA_PC_PARAMETERS-BAL_INIT, sy-vline,
  WA_OIRA_PC_PARAMETERS-BAL_HEADER_FILLED, sy-vline,
  WA_OIRA_PC_PARAMETERS-CHECK_DATE, sy-vline,
  WA_OIRA_PC_PARAMETERS-BAL_MSG_EXISTS, sy-vline,
  WA_OIRA_PC_PARAMETERS-SKIP_ST_UPD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIRA_PC_PARAMETERS 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_OIRA_PC_PARAMETERS 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_OIRA_PC_PARAMETERS INTO WA_OIRA_PC_PARAMETERS.


*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_OIRA_PC_PARAMETERS_STR, 
PROCESS TYPE STRING,
PCGROUP TYPE STRING,
RNBT TYPE STRING,
EXECUTION_DATE TYPE STRING,
OBJECT_TYPE TYPE STRING,
OBJECT TYPE STRING,
BAL_INIT TYPE STRING,
BAL_HEADER_FILLED TYPE STRING,
CHECK_DATE TYPE STRING,
BAL_MSG_EXISTS TYPE STRING,
SKIP_ST_UPD TYPE STRING,
RWRT_ST_UPD TYPE STRING,
LOC_REJECTED TYPE STRING,
MAIN_PROCESS_STATUS TYPE STRING,
DYN_PROCESSING TYPE STRING,
NO_SCHEDULE_CHECK TYPE STRING,
NO_LOC_STATUS_CHECK TYPE STRING,
NO_PROC_EXE_CHECK TYPE STRING,
BUKRS TYPE STRING,
SUMMARY_INFO TYPE STRING,
SHOW_DOCUMENTS TYPE STRING,
OBJECT_COUNT TYPE STRING,
ERROR_FLAG TYPE STRING,
NO_PREREQ_CHECK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIRA_PC_PARAMETERS_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_OIRA_PC_PARAMETERS_STR-PROCESS sy-vline 
WA_OIRA_PC_PARAMETERS_STR-PCGROUP sy-vline 
WA_OIRA_PC_PARAMETERS_STR-RNBT sy-vline 
WA_OIRA_PC_PARAMETERS_STR-EXECUTION_DATE sy-vline 
WA_OIRA_PC_PARAMETERS_STR-OBJECT_TYPE sy-vline 
WA_OIRA_PC_PARAMETERS_STR-OBJECT sy-vline 
WA_OIRA_PC_PARAMETERS_STR-BAL_INIT sy-vline 
WA_OIRA_PC_PARAMETERS_STR-BAL_HEADER_FILLED sy-vline 
WA_OIRA_PC_PARAMETERS_STR-CHECK_DATE sy-vline 
WA_OIRA_PC_PARAMETERS_STR-BAL_MSG_EXISTS sy-vline 
WA_OIRA_PC_PARAMETERS_STR-SKIP_ST_UPD sy-vline 
WA_OIRA_PC_PARAMETERS_STR-RWRT_ST_UPD sy-vline 
WA_OIRA_PC_PARAMETERS_STR-LOC_REJECTED sy-vline 
WA_OIRA_PC_PARAMETERS_STR-MAIN_PROCESS_STATUS sy-vline 
WA_OIRA_PC_PARAMETERS_STR-DYN_PROCESSING sy-vline 
WA_OIRA_PC_PARAMETERS_STR-NO_SCHEDULE_CHECK sy-vline 
WA_OIRA_PC_PARAMETERS_STR-NO_LOC_STATUS_CHECK sy-vline 
WA_OIRA_PC_PARAMETERS_STR-NO_PROC_EXE_CHECK sy-vline 
WA_OIRA_PC_PARAMETERS_STR-BUKRS sy-vline 
WA_OIRA_PC_PARAMETERS_STR-SUMMARY_INFO sy-vline 
WA_OIRA_PC_PARAMETERS_STR-SHOW_DOCUMENTS sy-vline 
WA_OIRA_PC_PARAMETERS_STR-OBJECT_COUNT sy-vline 
WA_OIRA_PC_PARAMETERS_STR-ERROR_FLAG sy-vline 
WA_OIRA_PC_PARAMETERS_STR-NO_PREREQ_CHECK sy-vline      INTO ld_text SEPARATED BY SPACE.

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