ABAP Select data from SAP table CRMCHKRSLF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMCHKRSLF
*  INTO TABLE @DATA(IT_CRMCHKRSLF2).
*--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_CRMCHKRSLF INDEX 1 INTO DATA(WA_CRMCHKRSLF2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMCHKRSLF-POBJECT, sy-vline,
  WA_CRMCHKRSLF-POBJ_NAME, sy-vline,
  WA_CRMCHKRSLF-CHKID, sy-vline,
  WA_CRMCHKRSLF-CHKMSGID, sy-vline,
  WA_CRMCHKRSLF-CHKRSLTNBR, sy-vline,
  WA_CRMCHKRSLF-CHKSUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMCHKRSLF 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_CRMCHKRSLF 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_CRMCHKRSLF INTO WA_CRMCHKRSLF.


*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_CRMCHKRSLF_STR, 
OBJSETKIND TYPE STRING,
OBJSETID TYPE STRING,
PGMID TYPE STRING,
OBJECT TYPE STRING,
OBJ_NAME TYPE STRING,
POBJECT TYPE STRING,
POBJ_NAME TYPE STRING,
CHKID TYPE STRING,
CHKMSGID TYPE STRING,
CHKRSLTNBR TYPE STRING,
CHKSUM TYPE STRING,
CHKRESULT TYPE STRING,
CHKTSTAMP TYPE STRING,
CHKSTATUS TYPE STRING,
CHKREL TYPE STRING,
SUCCESS TYPE STRING,
ERROR TYPE STRING,
EXEMPTED_IN_CODE TYPE STRING,
NAVIGATOR TYPE STRING,
TEXT_HANDLE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMCHKRSLF_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_CRMCHKRSLF_STR-OBJSETKIND sy-vline 
WA_CRMCHKRSLF_STR-OBJSETID sy-vline 
WA_CRMCHKRSLF_STR-PGMID sy-vline 
WA_CRMCHKRSLF_STR-OBJECT sy-vline 
WA_CRMCHKRSLF_STR-OBJ_NAME sy-vline 
WA_CRMCHKRSLF_STR-POBJECT sy-vline 
WA_CRMCHKRSLF_STR-POBJ_NAME sy-vline 
WA_CRMCHKRSLF_STR-CHKID sy-vline 
WA_CRMCHKRSLF_STR-CHKMSGID sy-vline 
WA_CRMCHKRSLF_STR-CHKRSLTNBR sy-vline 
WA_CRMCHKRSLF_STR-CHKSUM sy-vline 
WA_CRMCHKRSLF_STR-CHKRESULT sy-vline 
WA_CRMCHKRSLF_STR-CHKTSTAMP sy-vline 
WA_CRMCHKRSLF_STR-CHKSTATUS sy-vline 
WA_CRMCHKRSLF_STR-CHKREL sy-vline 
WA_CRMCHKRSLF_STR-SUCCESS sy-vline 
WA_CRMCHKRSLF_STR-ERROR sy-vline 
WA_CRMCHKRSLF_STR-EXEMPTED_IN_CODE sy-vline 
WA_CRMCHKRSLF_STR-NAVIGATOR sy-vline 
WA_CRMCHKRSLF_STR-TEXT_HANDLE sy-vline      INTO ld_text SEPARATED BY SPACE.

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