ABAP Select data from SAP table CSVTBYMONTHMNT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSVTBYMONTHMNT
*  INTO TABLE @DATA(IT_CSVTBYMONTHMNT2).
*--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_CSVTBYMONTHMNT INDEX 1 INTO DATA(WA_CSVTBYMONTHMNT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSVTBYMONTHMNT>-MANDT = 1.
<CSVTBYMONTHMNT>-SVTAGGREGATIONITEMUUID = 1.
<CSVTBYMONTHMNT>-CALENDARMONTH = 1.
<CSVTBYMONTHMNT>-CALENDARYEAR = 1.
<CSVTBYMONTHMNT>-SVTBUSINESSPROCESS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSVTBYMONTHMNT-CMPLRQSVTSCENARIO, sy-vline,
  WA_CSVTBYMONTHMNT-CALENDARMONTHNAME, sy-vline,
  WA_CSVTBYMONTHMNT-SVTBUSINESSPROCESSTEXT, sy-vline,
  WA_CSVTBYMONTHMNT-CMPLRQSVTSCENARIOTEXT, sy-vline,
  WA_CSVTBYMONTHMNT-PLANNEDSUBSTANCEVOLUME, sy-vline,
  WA_CSVTBYMONTHMNT-PLANNEDSUBSTANCEVOLUMEUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSVTBYMONTHMNT 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_CSVTBYMONTHMNT 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_CSVTBYMONTHMNT INTO WA_CSVTBYMONTHMNT.


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

*Conversion exit CUNIT, internal->external for field PRODALLOCPERCENTUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CSVTBYMONTHMNT-PRODALLOCPERCENTUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSVTBYMONTHMNT-PRODALLOCPERCENTUNIT.
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_CSVTBYMONTHMNT_STR, 
MANDT TYPE STRING,
SVTAGGREGATIONITEMUUID TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARYEAR TYPE STRING,
SVTBUSINESSPROCESS TYPE STRING,
CMPLRQSVTSCENARIO TYPE STRING,
CALENDARMONTHNAME TYPE STRING,
SVTBUSINESSPROCESSTEXT TYPE STRING,
CMPLRQSVTSCENARIOTEXT TYPE STRING,
PLANNEDSUBSTANCEVOLUME TYPE STRING,
PLANNEDSUBSTANCEVOLUMEUNIT TYPE STRING,
PERIODMONTHYEARNAME TYPE STRING,
CONFIRMEDSUBSTANCEVOLUME TYPE STRING,
CONFIRMEDSUBSTANCEVOLUMEUNIT TYPE STRING,
LGLENTITYTOTALSUBSTVOL TYPE STRING,
CASNUMBER TYPE STRING,
SUBSTANCENAME TYPE STRING,
LEGALENTITY TYPE STRING,
TOTALSUBSTANCEVOLUME TYPE STRING,
TOTALSUBSTANCEVOLUMEUNIT TYPE STRING,
CMPLRQVERSTRACKINGPERIODTEXT TYPE STRING,
TRACKINGPERIODSTARTDATE TYPE STRING,
TRACKINGPERIODENDDATE TYPE STRING,
SUBSTANCEVOLUMETHRESHOLDQTY TYPE STRING,
SUBSTANCELISTNAME TYPE STRING,
SUBSTANCEVOLUMETHRESHOLDUNIT TYPE STRING,
LGLENTITYSUBSTVOLTHLDREACHUNIT TYPE STRING,
LGLENTITYSUBSTVOLTHLDREACHPCT TYPE STRING,
CMPLRQSVTSTATUSCRITICALITY TYPE STRING,
PRODALLOCPERCENTUNIT TYPE STRING,
SVTAGGREGATIONHEADERUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSVTBYMONTHMNT_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_CSVTBYMONTHMNT_STR-MANDT sy-vline 
WA_CSVTBYMONTHMNT_STR-SVTAGGREGATIONITEMUUID sy-vline 
WA_CSVTBYMONTHMNT_STR-CALENDARMONTH sy-vline 
WA_CSVTBYMONTHMNT_STR-CALENDARYEAR sy-vline 
WA_CSVTBYMONTHMNT_STR-SVTBUSINESSPROCESS sy-vline 
WA_CSVTBYMONTHMNT_STR-CMPLRQSVTSCENARIO sy-vline 
WA_CSVTBYMONTHMNT_STR-CALENDARMONTHNAME sy-vline 
WA_CSVTBYMONTHMNT_STR-SVTBUSINESSPROCESSTEXT sy-vline 
WA_CSVTBYMONTHMNT_STR-CMPLRQSVTSCENARIOTEXT sy-vline 
WA_CSVTBYMONTHMNT_STR-PLANNEDSUBSTANCEVOLUME sy-vline 
WA_CSVTBYMONTHMNT_STR-PLANNEDSUBSTANCEVOLUMEUNIT sy-vline 
WA_CSVTBYMONTHMNT_STR-PERIODMONTHYEARNAME sy-vline 
WA_CSVTBYMONTHMNT_STR-CONFIRMEDSUBSTANCEVOLUME sy-vline 
WA_CSVTBYMONTHMNT_STR-CONFIRMEDSUBSTANCEVOLUMEUNIT sy-vline 
WA_CSVTBYMONTHMNT_STR-LGLENTITYTOTALSUBSTVOL sy-vline 
WA_CSVTBYMONTHMNT_STR-CASNUMBER sy-vline 
WA_CSVTBYMONTHMNT_STR-SUBSTANCENAME sy-vline 
WA_CSVTBYMONTHMNT_STR-LEGALENTITY sy-vline 
WA_CSVTBYMONTHMNT_STR-TOTALSUBSTANCEVOLUME sy-vline 
WA_CSVTBYMONTHMNT_STR-TOTALSUBSTANCEVOLUMEUNIT sy-vline 
WA_CSVTBYMONTHMNT_STR-CMPLRQVERSTRACKINGPERIODTEXT sy-vline 
WA_CSVTBYMONTHMNT_STR-TRACKINGPERIODSTARTDATE sy-vline 
WA_CSVTBYMONTHMNT_STR-TRACKINGPERIODENDDATE sy-vline 
WA_CSVTBYMONTHMNT_STR-SUBSTANCEVOLUMETHRESHOLDQTY sy-vline 
WA_CSVTBYMONTHMNT_STR-SUBSTANCELISTNAME sy-vline 
WA_CSVTBYMONTHMNT_STR-SUBSTANCEVOLUMETHRESHOLDUNIT sy-vline 
WA_CSVTBYMONTHMNT_STR-LGLENTITYSUBSTVOLTHLDREACHUNIT sy-vline 
WA_CSVTBYMONTHMNT_STR-LGLENTITYSUBSTVOLTHLDREACHPCT sy-vline 
WA_CSVTBYMONTHMNT_STR-CMPLRQSVTSTATUSCRITICALITY sy-vline 
WA_CSVTBYMONTHMNT_STR-PRODALLOCPERCENTUNIT sy-vline 
WA_CSVTBYMONTHMNT_STR-SVTAGGREGATIONHEADERUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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