ABAP Select data from SAP table PSM_MEASURE_REPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSM_MEASURE_REPL
*  INTO TABLE @DATA(IT_PSM_MEASURE_REPL2).
*--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_PSM_MEASURE_REPL INDEX 1 INTO DATA(WA_PSM_MEASURE_REPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSM_MEASURE_REPL>-FM_AREA = 1.
<PSM_MEASURE_REPL>-MEASURE = 1.
<PSM_MEASURE_REPL>-FP_TYPE = 1.
<PSM_MEASURE_REPL>-VALID_FROM_TSTMP = 1.
<PSM_MEASURE_REPL>-VALID_TO_TSTMP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSM_MEASURE_REPL-DATE_EXP_TSTMP, sy-vline,
  WA_PSM_MEASURE_REPL-TIME_ZONE, sy-vline,
  WA_PSM_MEASURE_REPL-FM_AUTHGR_MEASURE, sy-vline,
  WA_PSM_MEASURE_REPL-CENTRALARCHIVINGFLAG, sy-vline,
  WA_PSM_MEASURE_REPL-FP_CATEGORY, sy-vline,
  WA_PSM_MEASURE_REPL-OBJKEY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSM_MEASURE_REPL 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_PSM_MEASURE_REPL 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_PSM_MEASURE_REPL INTO WA_PSM_MEASURE_REPL.


*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 TSTPS, internal->external for field VALID_FROM_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_PSM_MEASURE_REPL-VALID_FROM_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSM_MEASURE_REPL-VALID_FROM_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field VALID_TO_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_PSM_MEASURE_REPL-VALID_TO_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSM_MEASURE_REPL-VALID_TO_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field DATE_EXP_TSTMP
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_PSM_MEASURE_REPL-DATE_EXP_TSTMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSM_MEASURE_REPL-DATE_EXP_TSTMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PSM_MEASURE_REPL-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSM_MEASURE_REPL-LOGSYS.
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_PSM_MEASURE_REPL_STR, 
FM_AREA TYPE STRING,
MEASURE TYPE STRING,
FP_TYPE TYPE STRING,
VALID_FROM_TSTMP TYPE STRING,
VALID_TO_TSTMP TYPE STRING,
DATE_EXP_TSTMP TYPE STRING,
TIME_ZONE TYPE STRING,
FM_AUTHGR_MEASURE TYPE STRING,
CENTRALARCHIVINGFLAG TYPE STRING,
FP_CATEGORY TYPE STRING,
OBJKEY TYPE STRING,
OBJTYPE TYPE STRING,
LOGSYS TYPE STRING,
MOD_ACTION TYPE STRING,
COMP_CODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSM_MEASURE_REPL_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_PSM_MEASURE_REPL_STR-FM_AREA sy-vline 
WA_PSM_MEASURE_REPL_STR-MEASURE sy-vline 
WA_PSM_MEASURE_REPL_STR-FP_TYPE sy-vline 
WA_PSM_MEASURE_REPL_STR-VALID_FROM_TSTMP sy-vline 
WA_PSM_MEASURE_REPL_STR-VALID_TO_TSTMP sy-vline 
WA_PSM_MEASURE_REPL_STR-DATE_EXP_TSTMP sy-vline 
WA_PSM_MEASURE_REPL_STR-TIME_ZONE sy-vline 
WA_PSM_MEASURE_REPL_STR-FM_AUTHGR_MEASURE sy-vline 
WA_PSM_MEASURE_REPL_STR-CENTRALARCHIVINGFLAG sy-vline 
WA_PSM_MEASURE_REPL_STR-FP_CATEGORY sy-vline 
WA_PSM_MEASURE_REPL_STR-OBJKEY sy-vline 
WA_PSM_MEASURE_REPL_STR-OBJTYPE sy-vline 
WA_PSM_MEASURE_REPL_STR-LOGSYS sy-vline 
WA_PSM_MEASURE_REPL_STR-MOD_ACTION sy-vline 
WA_PSM_MEASURE_REPL_STR-COMP_CODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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