ABAP Select data from SAP table CLCMRELSTATUS 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 CLCMRELSTATUS 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 CLCMRELSTATUS. 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 CLCMRELSTATUS 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_CLCMRELSTATUS TYPE STANDARD TABLE OF CLCMRELSTATUS,
      WA_CLCMRELSTATUS TYPE CLCMRELSTATUS,
      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: <CLCMRELSTATUS> TYPE CLCMRELSTATUS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLCMRELSTATUS
*  INTO TABLE @DATA(IT_CLCMRELSTATUS2).
*--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_CLCMRELSTATUS INDEX 1 INTO DATA(WA_CLCMRELSTATUS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLCMRELSTATUS>-MANDT = 1.
<CLCMRELSTATUS>-LEGALTRANSACTIONUUID = 1.
<CLCMRELSTATUS>-LGLCNTNTMRELSHPUSECASE = 1.
<CLCMRELSTATUS>-LEGALTRANSACTIONRELSHPUUID = 1.
<CLCMRELSTATUS>-LGLCNTNTMUSECASEREGUUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLCMRELSTATUS-LEGALTRANSACTIONTOPUUID, sy-vline,
  WA_CLCMRELSTATUS-LGLCNTNTMTOPRELSHPUSECASE, sy-vline,
  WA_CLCMRELSTATUS-LGLCNTNTMUSECASEJOBEXECSTATUS, sy-vline,
  WA_CLCMRELSTATUS-LEGALTRANSACTIONTOP, sy-vline,
  WA_CLCMRELSTATUS-LEGALTRANSACTIONTITLETOP, sy-vline,
  WA_CLCMRELSTATUS-LGLCNTNTMLOGHANDLER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLCMRELSTATUS 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_CLCMRELSTATUS 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_CLCMRELSTATUS INTO WA_CLCMRELSTATUS.


*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 LEGALTRANSACTIONTOP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLCMRELSTATUS-LEGALTRANSACTIONTOP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLCMRELSTATUS-LEGALTRANSACTIONTOP.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field RELSHPLEGALTRANSACTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CLCMRELSTATUS-RELSHPLEGALTRANSACTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CLCMRELSTATUS-RELSHPLEGALTRANSACTION.
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_CLCMRELSTATUS_STR, 
MANDT TYPE STRING,
LEGALTRANSACTIONUUID TYPE STRING,
LGLCNTNTMRELSHPUSECASE TYPE STRING,
LEGALTRANSACTIONRELSHPUUID TYPE STRING,
LGLCNTNTMUSECASEREGUUID TYPE STRING,
LEGALTRANSACTIONTOPUUID TYPE STRING,
LGLCNTNTMTOPRELSHPUSECASE TYPE STRING,
LGLCNTNTMUSECASEJOBEXECSTATUS TYPE STRING,
LEGALTRANSACTIONTOP TYPE STRING,
LEGALTRANSACTIONTITLETOP TYPE STRING,
LGLCNTNTMLOGHANDLER TYPE STRING,
LEGALTRANSACTION TYPE STRING,
LEGALTRANSACTIONTITLE TYPE STRING,
LGLTRANSHEALTHCRITICALITY TYPE STRING,
LEGALTRANSACTIONHEALTH TYPE STRING,
LEGALTRANSACTIONHEALTHNAME TYPE STRING,
LGLCNTNTMLEGALTRLOGHANDLER TYPE STRING,
RELSHPLEGALTRANSACTIONTITLE TYPE STRING,
RELSHPLEGALTRANSACTION TYPE STRING,
LGLCNTNTMRELSHPTYPE TYPE STRING,
LGLCNTNTMRELTYPENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLCMRELSTATUS_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_CLCMRELSTATUS_STR-MANDT sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONUUID sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMRELSHPUSECASE sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONRELSHPUUID sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMUSECASEREGUUID sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONTOPUUID sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMTOPRELSHPUSECASE sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMUSECASEJOBEXECSTATUS sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONTOP sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONTITLETOP sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMLOGHANDLER sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTION sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONTITLE sy-vline 
WA_CLCMRELSTATUS_STR-LGLTRANSHEALTHCRITICALITY sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONHEALTH sy-vline 
WA_CLCMRELSTATUS_STR-LEGALTRANSACTIONHEALTHNAME sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMLEGALTRLOGHANDLER sy-vline 
WA_CLCMRELSTATUS_STR-RELSHPLEGALTRANSACTIONTITLE sy-vline 
WA_CLCMRELSTATUS_STR-RELSHPLEGALTRANSACTION sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMRELSHPTYPE sy-vline 
WA_CLCMRELSTATUS_STR-LGLCNTNTMRELTYPENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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