ABAP Select data from SAP table CRMCHKEXC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMCHKEXC
*  INTO TABLE @DATA(IT_CRMCHKEXC2).
*--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_CRMCHKEXC INDEX 1 INTO DATA(WA_CRMCHKEXC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMCHKEXC>-DLVUNIT = 1.
<CRMCHKEXC>-OBJSETKIND = 1.
<CRMCHKEXC>-OBJSETID = 1.
<CRMCHKEXC>-PGMID = 1.
<CRMCHKEXC>-OBJECT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMCHKEXC-OBJ_NAME, sy-vline,
  WA_CRMCHKEXC-CHKID, sy-vline,
  WA_CRMCHKEXC-CHKMSGID, sy-vline,
  WA_CRMCHKEXC-POBJECT, sy-vline,
  WA_CRMCHKEXC-POBJ_NAME, sy-vline,
  WA_CRMCHKEXC-UNTILDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMCHKEXC 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_CRMCHKEXC 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_CRMCHKEXC INTO WA_CRMCHKEXC.


*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 CRMUS, internal->external for field APPLYUSER
CALL FUNCTION 'CONVERSION_EXIT_CRMUS_OUTPUT'
  EXPORTING
    input =                      WA_CRMCHKEXC-APPLYUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMCHKEXC-APPLYUSER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CRMUS, internal->external for field AGREEUSER
CALL FUNCTION 'CONVERSION_EXIT_CRMUS_OUTPUT'
  EXPORTING
    input =                      WA_CRMCHKEXC-AGREEUSER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMCHKEXC-AGREEUSER.
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_CRMCHKEXC_STR, 
DLVUNIT TYPE STRING,
OBJSETKIND TYPE STRING,
OBJSETID TYPE STRING,
PGMID TYPE STRING,
OBJECT TYPE STRING,
OBJ_NAME TYPE STRING,
CHKID TYPE STRING,
CHKMSGID TYPE STRING,
POBJECT TYPE STRING,
POBJ_NAME TYPE STRING,
UNTILDAT TYPE STRING,
UNTILREL TYPE STRING,
CHKSUM TYPE STRING,
CRETSTAMP TYPE STRING,
CREUSER TYPE STRING,
CHGTSTAMP TYPE STRING,
CHGUSER TYPE STRING,
FROMREL TYPE STRING,
APPLYUSER TYPE STRING,
AGREEUSER TYPE STRING,
AGREED TYPE STRING,
AGRTSTAMP TYPE STRING,
EXCID TYPE STRING,
EXCBFRCHK TYPE STRING,
DELETED TYPE STRING,
REPLICATED TYPE STRING,
EXCCOMMENT TYPE STRING,
TODOS TYPE STRING,
REPLICATED_BY TYPE STRING,
REPLICATED_ON TYPE STRING,
REPLICATED_SRC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMCHKEXC_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_CRMCHKEXC_STR-DLVUNIT sy-vline 
WA_CRMCHKEXC_STR-OBJSETKIND sy-vline 
WA_CRMCHKEXC_STR-OBJSETID sy-vline 
WA_CRMCHKEXC_STR-PGMID sy-vline 
WA_CRMCHKEXC_STR-OBJECT sy-vline 
WA_CRMCHKEXC_STR-OBJ_NAME sy-vline 
WA_CRMCHKEXC_STR-CHKID sy-vline 
WA_CRMCHKEXC_STR-CHKMSGID sy-vline 
WA_CRMCHKEXC_STR-POBJECT sy-vline 
WA_CRMCHKEXC_STR-POBJ_NAME sy-vline 
WA_CRMCHKEXC_STR-UNTILDAT sy-vline 
WA_CRMCHKEXC_STR-UNTILREL sy-vline 
WA_CRMCHKEXC_STR-CHKSUM sy-vline 
WA_CRMCHKEXC_STR-CRETSTAMP sy-vline 
WA_CRMCHKEXC_STR-CREUSER sy-vline 
WA_CRMCHKEXC_STR-CHGTSTAMP sy-vline 
WA_CRMCHKEXC_STR-CHGUSER sy-vline 
WA_CRMCHKEXC_STR-FROMREL sy-vline 
WA_CRMCHKEXC_STR-APPLYUSER sy-vline 
WA_CRMCHKEXC_STR-AGREEUSER sy-vline 
WA_CRMCHKEXC_STR-AGREED sy-vline 
WA_CRMCHKEXC_STR-AGRTSTAMP sy-vline 
WA_CRMCHKEXC_STR-EXCID sy-vline 
WA_CRMCHKEXC_STR-EXCBFRCHK sy-vline 
WA_CRMCHKEXC_STR-DELETED sy-vline 
WA_CRMCHKEXC_STR-REPLICATED sy-vline 
WA_CRMCHKEXC_STR-EXCCOMMENT sy-vline 
WA_CRMCHKEXC_STR-TODOS sy-vline 
WA_CRMCHKEXC_STR-REPLICATED_BY sy-vline 
WA_CRMCHKEXC_STR-REPLICATED_ON sy-vline 
WA_CRMCHKEXC_STR-REPLICATED_SRC sy-vline      INTO ld_text SEPARATED BY SPACE.

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