ABAP Select data from SAP table CNVCMISBACKUP_EX into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNVCMISBACKUP_EX
*  INTO TABLE @DATA(IT_CNVCMISBACKUP_EX2).
*--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_CNVCMISBACKUP_EX INDEX 1 INTO DATA(WA_CNVCMISBACKUP_EX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNVCMISBACKUP_EX>-MANDT = 1.
<CNVCMISBACKUP_EX>-KEYID = 1.
<CNVCMISBACKUP_EX>-TABNAME = 1.
<CNVCMISBACKUP_EX>-EVENT = 1.
<CNVCMISBACKUP_EX>-JOBNAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNVCMISBACKUP_EX-JOBCOUNT, sy-vline,
  WA_CNVCMISBACKUP_EX-SERVER, sy-vline,
  WA_CNVCMISBACKUP_EX-STRTDATE, sy-vline,
  WA_CNVCMISBACKUP_EX-STRTTIME, sy-vline,
  WA_CNVCMISBACKUP_EX-ENDDATE, sy-vline,
  WA_CNVCMISBACKUP_EX-ENDTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNVCMISBACKUP_EX 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_CNVCMISBACKUP_EX 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_CNVCMISBACKUP_EX INTO WA_CNVCMISBACKUP_EX.


*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_CNVCMISBACKUP_EX_STR, 
MANDT TYPE STRING,
KEYID TYPE STRING,
TABNAME TYPE STRING,
EVENT TYPE STRING,
JOBNAME TYPE STRING,
JOBCOUNT TYPE STRING,
SERVER TYPE STRING,
STRTDATE TYPE STRING,
STRTTIME TYPE STRING,
ENDDATE TYPE STRING,
ENDTIME TYPE STRING,
OWNER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNVCMISBACKUP_EX_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_CNVCMISBACKUP_EX_STR-MANDT sy-vline 
WA_CNVCMISBACKUP_EX_STR-KEYID sy-vline 
WA_CNVCMISBACKUP_EX_STR-TABNAME sy-vline 
WA_CNVCMISBACKUP_EX_STR-EVENT sy-vline 
WA_CNVCMISBACKUP_EX_STR-JOBNAME sy-vline 
WA_CNVCMISBACKUP_EX_STR-JOBCOUNT sy-vline 
WA_CNVCMISBACKUP_EX_STR-SERVER sy-vline 
WA_CNVCMISBACKUP_EX_STR-STRTDATE sy-vline 
WA_CNVCMISBACKUP_EX_STR-STRTTIME sy-vline 
WA_CNVCMISBACKUP_EX_STR-ENDDATE sy-vline 
WA_CNVCMISBACKUP_EX_STR-ENDTIME sy-vline 
WA_CNVCMISBACKUP_EX_STR-OWNER sy-vline      INTO ld_text SEPARATED BY SPACE.

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