ABAP Select data from SAP table PMMO_CALIBRATION_DISPLAY_S into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMMO_CALIBRATION_DISPLAY_S
*  INTO TABLE @DATA(IT_PMMO_CALIBRATION_DISPLAY_S2).
*--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_PMMO_CALIBRATION_DISPLAY_S INDEX 1 INTO DATA(WA_PMMO_CALIBRATION_DISPLAY_S2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMMO_CALIBRATION_DISPLAY_S>-REPID = 1.
<PMMO_CALIBRATION_DISPLAY_S>-JOBNAME = 1.
<PMMO_CALIBRATION_DISPLAY_S>-JOBID = 1.
<PMMO_CALIBRATION_DISPLAY_S>-JOBSTEP = 1.
<PMMO_CALIBRATION_DISPLAY_S>-CREATED_ON = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMMO_CALIBRATION_DISPLAY_S-VARIANT, sy-vline,
  WA_PMMO_CALIBRATION_DISPLAY_S-VARIANT_START, sy-vline,
  WA_PMMO_CALIBRATION_DISPLAY_S-PACKAGE_SIZE, sy-vline,
  WA_PMMO_CALIBRATION_DISPLAY_S-MAX_PARALLEL_SESSIONS, sy-vline,
  WA_PMMO_CALIBRATION_DISPLAY_S-SERVER_GROUP, sy-vline,
  WA_PMMO_CALIBRATION_DISPLAY_S-RUNTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMMO_CALIBRATION_DISPLAY_S 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_PMMO_CALIBRATION_DISPLAY_S 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_PMMO_CALIBRATION_DISPLAY_S INTO WA_PMMO_CALIBRATION_DISPLAY_S.


*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 TSTAM, internal->external for field CREATED_ON
CALL FUNCTION 'CONVERSION_EXIT_TSTAM_OUTPUT'
  EXPORTING
    input =                      WA_PMMO_CALIBRATION_DISPLAY_S-CREATED_ON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMMO_CALIBRATION_DISPLAY_S-CREATED_ON.
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_PMMO_CALIBRATION_DISPLAY_S_STR, 
REPID TYPE STRING,
JOBNAME TYPE STRING,
JOBID TYPE STRING,
JOBSTEP TYPE STRING,
CREATED_ON TYPE STRING,
VARIANT TYPE STRING,
VARIANT_START TYPE STRING,
PACKAGE_SIZE TYPE STRING,
MAX_PARALLEL_SESSIONS TYPE STRING,
SERVER_GROUP TYPE STRING,
RUNTIME TYPE STRING,
RUNTIME_MIN TYPE STRING,
RTM_ID TYPE STRING,
BAL_MSG_INFO TYPE STRING,
MSG_CNT_A TYPE STRING,
MSG_CNT_E TYPE STRING,
MSG_CNT_W TYPE STRING,
MSG_CNT_I TYPE STRING,
MSG_CNT_S TYPE STRING,
MSG_CNT_AL TYPE STRING,
BAL_LOG_HANDLE TYPE STRING,
DETAIL_RTM TYPE STRING,
CALIB_COMMENT TYPE STRING,
CHECKBOX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMMO_CALIBRATION_DISPLAY_S_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_PMMO_CALIBRATION_DISPLAY_S_STR-REPID sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-JOBNAME sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-JOBID sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-JOBSTEP sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-CREATED_ON sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-VARIANT sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-VARIANT_START sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-PACKAGE_SIZE sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-MAX_PARALLEL_SESSIONS sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-SERVER_GROUP sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-RUNTIME sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-RUNTIME_MIN sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-RTM_ID sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-BAL_MSG_INFO sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-MSG_CNT_A sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-MSG_CNT_E sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-MSG_CNT_W sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-MSG_CNT_I sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-MSG_CNT_S sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-MSG_CNT_AL sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-BAL_LOG_HANDLE sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-DETAIL_RTM sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-CALIB_COMMENT sy-vline 
WA_PMMO_CALIBRATION_DISPLAY_S_STR-CHECKBOX sy-vline      INTO ld_text SEPARATED BY SPACE.

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