ABAP Select data from SAP table CNV_PE_UI_S_TRFM_INFO into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CNV_PE_UI_S_TRFM_INFO
*  INTO TABLE @DATA(IT_CNV_PE_UI_S_TRFM_INFO2).
*--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_CNV_PE_UI_S_TRFM_INFO INDEX 1 INTO DATA(WA_CNV_PE_UI_S_TRFM_INFO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CNV_PE_UI_S_TRFM_INFO>-MANDT = 1.
<CNV_PE_UI_S_TRFM_INFO>-ID = 1.
<CNV_PE_UI_S_TRFM_INFO>-TYPE = 1.
<CNV_PE_UI_S_TRFM_INFO>-OBJECT = 1.
<CNV_PE_UI_S_TRFM_INFO>-OBJECT_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CNV_PE_UI_S_TRFM_INFO-IF_ID, sy-vline,
  WA_CNV_PE_UI_S_TRFM_INFO-WL2_ID, sy-vline,
  WA_CNV_PE_UI_S_TRFM_INFO-MASS_PROCESS, sy-vline,
  WA_CNV_PE_UI_S_TRFM_INFO-RT_IDENT, sy-vline,
  WA_CNV_PE_UI_S_TRFM_INFO-CONFIG_CLS, sy-vline,
  WA_CNV_PE_UI_S_TRFM_INFO-ACTIVE_SCEN_ID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CNV_PE_UI_S_TRFM_INFO 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_CNV_PE_UI_S_TRFM_INFO 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_CNV_PE_UI_S_TRFM_INFO INTO WA_CNV_PE_UI_S_TRFM_INFO.


*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_CNV_PE_UI_S_TRFM_INFO_STR, 
MANDT TYPE STRING,
ID TYPE STRING,
TYPE TYPE STRING,
OBJECT TYPE STRING,
OBJECT_NAME TYPE STRING,
IF_ID TYPE STRING,
WL2_ID TYPE STRING,
MASS_PROCESS TYPE STRING,
RT_IDENT TYPE STRING,
CONFIG_CLS TYPE STRING,
ACTIVE_SCEN_ID TYPE STRING,
IMPORT_DATAMODEL TYPE STRING,
IMPORT_EXTENSION TYPE STRING,
WL2_CLUSTER TYPE STRING,
SIM_TYPE TYPE STRING,
STORE_ITEM_LOG TYPE STRING,
WLRL_TIMESTEP TYPE STRING,
NO_RESULT_RAW TYPE STRING,
NO_RESULT_AREA TYPE STRING,
TR_COND_ID TYPE STRING,
TR_COND_IFMAP_ID TYPE STRING,
TR_COND_ACTIVE TYPE STRING,
EXE_ID TYPE STRING,
NO_WLRL TYPE STRING,
NO_UNDO TYPE STRING,
FINAL TYPE STRING,
FINAL_CHECK_CLS TYPE STRING,
IF_MAP_GEN_CLS TYPE STRING,
POST_BLOCK_SIZE TYPE STRING,
RFC_BLOCK_SIZE TYPE STRING,
CREATED_DATE TYPE STRING,
CREATED_TIME TYPE STRING,
CREATED_BY TYPE STRING,
CHANGED_DATE TYPE STRING,
CHANGED_TIME TYPE STRING,
CHANGED_BY TYPE STRING,
OBJECT_DESCR TYPE STRING,
TYPE_DESCR TYPE STRING,
STATUS_ICON TYPE STRING,
STATUS_ICON_WL2 TYPE STRING,
SIM_AVAILABLE TYPE STRING,
TR_COND_NAME TYPE STRING,
TR_PAR TYPE STRING,
TR_PMAP_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CNV_PE_UI_S_TRFM_INFO_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_CNV_PE_UI_S_TRFM_INFO_STR-MANDT sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-ID sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TYPE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-OBJECT sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-OBJECT_NAME sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-IF_ID sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-WL2_ID sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-MASS_PROCESS sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-RT_IDENT sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-CONFIG_CLS sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-ACTIVE_SCEN_ID sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-IMPORT_DATAMODEL sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-IMPORT_EXTENSION sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-WL2_CLUSTER sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-SIM_TYPE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-STORE_ITEM_LOG sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-WLRL_TIMESTEP sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-NO_RESULT_RAW sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-NO_RESULT_AREA sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TR_COND_ID sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TR_COND_IFMAP_ID sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TR_COND_ACTIVE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-EXE_ID sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-NO_WLRL sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-NO_UNDO sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-FINAL sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-FINAL_CHECK_CLS sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-IF_MAP_GEN_CLS sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-POST_BLOCK_SIZE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-RFC_BLOCK_SIZE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-CREATED_DATE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-CREATED_TIME sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-CREATED_BY sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-CHANGED_DATE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-CHANGED_TIME sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-CHANGED_BY sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-OBJECT_DESCR sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TYPE_DESCR sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-STATUS_ICON sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-STATUS_ICON_WL2 sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-SIM_AVAILABLE sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TR_COND_NAME sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TR_PAR sy-vline 
WA_CNV_PE_UI_S_TRFM_INFO_STR-TR_PMAP_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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