ABAP Select data from SAP table CGNRCFSI into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CGNRCFSI 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 CGNRCFSI. 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 CGNRCFSI 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_CGNRCFSI TYPE STANDARD TABLE OF CGNRCFSI,
      WA_CGNRCFSI TYPE CGNRCFSI,
      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: <CGNRCFSI> TYPE CGNRCFSI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CGNRCFSI
*  INTO TABLE @DATA(IT_CGNRCFSI2).
*--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_CGNRCFSI INDEX 1 INTO DATA(WA_CGNRCFSI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CGNRCFSI>-MANDT = 1.
<CGNRCFSI>-SAFETYINSTRUCTIONUUID = 1.
<CGNRCFSI>-SAFETYINSTRUCTION = 1.
<CGNRCFSI>-SAFETYINSTRUCTIONSTATUS = 1.
<CGNRCFSI>-SFTYINSTRNSTATUSCRITICALITY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CGNRCFSI-SFTYINSTRNISTMPLCRITICALITY, sy-vline,
  WA_CGNRCFSI-SAFETYINSTRUCTIONMAJORREVISION, sy-vline,
  WA_CGNRCFSI-SAFETYINSTRUCTIONMINORREVISION, sy-vline,
  WA_CGNRCFSI-SAFETYINSTRUCTIONREVISION, sy-vline,
  WA_CGNRCFSI-FACTORYEHSLOCATIONUUID, sy-vline,
  WA_CGNRCFSI-FACTORYEHSLOCATIONUUIDFORCOPY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CGNRCFSI 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_CGNRCFSI 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_CGNRCFSI INTO WA_CGNRCFSI.


*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 ALPHA, internal->external for field SAFETYINSTRUCTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CGNRCFSI-SAFETYINSTRUCTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGNRCFSI-SAFETYINSTRUCTION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field LANGUAGE
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CGNRCFSI-LANGUAGE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGNRCFSI-LANGUAGE.
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_CGNRCFSI_STR, 
MANDT TYPE STRING,
SAFETYINSTRUCTIONUUID TYPE STRING,
SAFETYINSTRUCTION TYPE STRING,
SAFETYINSTRUCTIONSTATUS TYPE STRING,
SFTYINSTRNSTATUSCRITICALITY TYPE STRING,
SFTYINSTRNISTMPLCRITICALITY TYPE STRING,
SAFETYINSTRUCTIONMAJORREVISION TYPE STRING,
SAFETYINSTRUCTIONMINORREVISION TYPE STRING,
SAFETYINSTRUCTIONREVISION TYPE STRING,
FACTORYEHSLOCATIONUUID TYPE STRING,
FACTORYEHSLOCATIONUUIDFORCOPY TYPE STRING,
SFTYINSTRNFACTAREASCNCTNTDTEXT TYPE STRING,
SFTYINSTRNBUILDINGSCNCTNTDTEXT TYPE STRING,
EHSLOCATIONNAME TYPE STRING,
CITYNAME TYPE STRING,
SAFETYINSTRNJOBSCNCTNTDTEXT TYPE STRING,
JOBFREETEXT TYPE STRING,
FACTORYAREAFREETEXT TYPE STRING,
LANGUAGE TYPE STRING,
CREATIONUTCDATETIME TYPE STRING,
CREATEDBYUSERDESCRIPTION TYPE STRING,
CREATEDBYUSER TYPE STRING,
LASTCHANGEUTCDATETIME TYPE STRING,
LASTCHANGEDBYUSERDESCRIPTION TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
SAFETYINSTRUCTIONRELDATETIME TYPE STRING,
RELEASEDBYUSERNAME TYPE STRING,
RELEASEDBYUSER TYPE STRING,
SAFETYINSTRUCTIONTYPE TYPE STRING,
SAFETYINSTRUCTIONSUBTYPE TYPE STRING,
SAFETYINSTRUCTIONISTEMPLATE TYPE STRING,
SAFETYINSTRUCTIONNOTE TYPE STRING,
SAFETYINSTRUCTIONSUBJECTDESC TYPE STRING,
PLANT TYPE STRING,
SAFETYINSTRUCTIONSTRUCTURE TYPE STRING,
SAFETYINSTRUCTIONSUBTYPETEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CGNRCFSI_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_CGNRCFSI_STR-MANDT sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONUUID sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTION sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONSTATUS sy-vline 
WA_CGNRCFSI_STR-SFTYINSTRNSTATUSCRITICALITY sy-vline 
WA_CGNRCFSI_STR-SFTYINSTRNISTMPLCRITICALITY sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONMAJORREVISION sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONMINORREVISION sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONREVISION sy-vline 
WA_CGNRCFSI_STR-FACTORYEHSLOCATIONUUID sy-vline 
WA_CGNRCFSI_STR-FACTORYEHSLOCATIONUUIDFORCOPY sy-vline 
WA_CGNRCFSI_STR-SFTYINSTRNFACTAREASCNCTNTDTEXT sy-vline 
WA_CGNRCFSI_STR-SFTYINSTRNBUILDINGSCNCTNTDTEXT sy-vline 
WA_CGNRCFSI_STR-EHSLOCATIONNAME sy-vline 
WA_CGNRCFSI_STR-CITYNAME sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRNJOBSCNCTNTDTEXT sy-vline 
WA_CGNRCFSI_STR-JOBFREETEXT sy-vline 
WA_CGNRCFSI_STR-FACTORYAREAFREETEXT sy-vline 
WA_CGNRCFSI_STR-LANGUAGE sy-vline 
WA_CGNRCFSI_STR-CREATIONUTCDATETIME sy-vline 
WA_CGNRCFSI_STR-CREATEDBYUSERDESCRIPTION sy-vline 
WA_CGNRCFSI_STR-CREATEDBYUSER sy-vline 
WA_CGNRCFSI_STR-LASTCHANGEUTCDATETIME sy-vline 
WA_CGNRCFSI_STR-LASTCHANGEDBYUSERDESCRIPTION sy-vline 
WA_CGNRCFSI_STR-LASTCHANGEDBYUSER sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONRELDATETIME sy-vline 
WA_CGNRCFSI_STR-RELEASEDBYUSERNAME sy-vline 
WA_CGNRCFSI_STR-RELEASEDBYUSER sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONTYPE sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONSUBTYPE sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONISTEMPLATE sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONNOTE sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONSUBJECTDESC sy-vline 
WA_CGNRCFSI_STR-PLANT sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONSTRUCTURE sy-vline 
WA_CGNRCFSI_STR-SAFETYINSTRUCTIONSUBTYPETEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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