ABAP Select data from SAP table CLCMCTXENTTP 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 CLCMCTXENTTP 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 CLCMCTXENTTP. 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 CLCMCTXENTTP 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_CLCMCTXENTTP TYPE STANDARD TABLE OF CLCMCTXENTTP,
      WA_CLCMCTXENTTP TYPE CLCMCTXENTTP,
      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: <CLCMCTXENTTP> TYPE CLCMCTXENTTP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CLCMCTXENTTP
*  INTO TABLE @DATA(IT_CLCMCTXENTTP2).
*--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_CLCMCTXENTTP INDEX 1 INTO DATA(WA_CLCMCTXENTTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CLCMCTXENTTP>-MANDT = 1.
<CLCMCTXENTTP>-LGLCNTNTMCNTXTENTITYUUID = 1.
<CLCMCTXENTTP>-LGLCNTNTMCONTEXTUUID = 1.
<CLCMCTXENTTP>-LGLCNTNTMRANK = 1.
<CLCMCTXENTTP>-LGLCNTNTMENTITYTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CLCMCTXENTTP-LGLCNTNTMENTITYTYPENAME, sy-vline,
  WA_CLCMCTXENTTP-LGLCNTNTMTECHENTITYTYPE, sy-vline,
  WA_CLCMCTXENTTP-LGLCNTNTMENTITYSUPPLIER, sy-vline,
  WA_CLCMCTXENTTP-ORGANIZATIONBPNAME1, sy-vline,
  WA_CLCMCTXENTTP-ORGANIZATIONBPNAME2, sy-vline,
  WA_CLCMCTXENTTP-LGLCNTNTMENTITYCUSTOMER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CLCMCTXENTTP 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_CLCMCTXENTTP 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_CLCMCTXENTTP INTO WA_CLCMCTXENTTP.


*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_CLCMCTXENTTP_STR, 
MANDT TYPE STRING,
LGLCNTNTMCNTXTENTITYUUID TYPE STRING,
LGLCNTNTMCONTEXTUUID TYPE STRING,
LGLCNTNTMRANK TYPE STRING,
LGLCNTNTMENTITYTYPE TYPE STRING,
LGLCNTNTMENTITYTYPENAME TYPE STRING,
LGLCNTNTMTECHENTITYTYPE TYPE STRING,
LGLCNTNTMENTITYSUPPLIER TYPE STRING,
ORGANIZATIONBPNAME1 TYPE STRING,
ORGANIZATIONBPNAME2 TYPE STRING,
LGLCNTNTMENTITYCUSTOMER TYPE STRING,
LGLCNTNTMCUSTOMERFIRSTNAME TYPE STRING,
LGLCNTNTMCUSTOMERSECONDNAME TYPE STRING,
LGLCNTNTMENTITYCOCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
LGLCNTNTMENTITYSLSORG TYPE STRING,
SALESORGANIZATIONNAME TYPE STRING,
LGLCNTNTMENTITYPURORG TYPE STRING,
PURCHASINGORGANIZATIONNAME TYPE STRING,
LGLCNTNTMENTITYBUSINESSPARTNER TYPE STRING,
LGLCNTNTMBUSPARTNERFIRSTNAME TYPE STRING,
LGLCNTNTMBUSPARTNERSECONDNAME TYPE STRING,
LGLCNTNTMENTITY TYPE STRING,
LGLCNTNTMENTITYNAME TYPE STRING,
LGLCNTNTMISMANDATORY TYPE STRING,
LGLCNTNTMISMAINENTITY TYPE STRING,
LGLCNTNTMISINTEGRELEVANT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CLCMCTXENTTP_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_CLCMCTXENTTP_STR-MANDT sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMCNTXTENTITYUUID sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMCONTEXTUUID sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMRANK sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYTYPE sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYTYPENAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMTECHENTITYTYPE sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYSUPPLIER sy-vline 
WA_CLCMCTXENTTP_STR-ORGANIZATIONBPNAME1 sy-vline 
WA_CLCMCTXENTTP_STR-ORGANIZATIONBPNAME2 sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYCUSTOMER sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMCUSTOMERFIRSTNAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMCUSTOMERSECONDNAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYCOCODE sy-vline 
WA_CLCMCTXENTTP_STR-COMPANYCODENAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYSLSORG sy-vline 
WA_CLCMCTXENTTP_STR-SALESORGANIZATIONNAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYPURORG sy-vline 
WA_CLCMCTXENTTP_STR-PURCHASINGORGANIZATIONNAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYBUSINESSPARTNER sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMBUSPARTNERFIRSTNAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMBUSPARTNERSECONDNAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITY sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMENTITYNAME sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMISMANDATORY sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMISMAINENTITY sy-vline 
WA_CLCMCTXENTTP_STR-LGLCNTNTMISINTEGRELEVANT sy-vline      INTO ld_text SEPARATED BY SPACE.

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