ABAP Select data from SAP table ACMRT_RES_LOGEXP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ACMRT_RES_LOGEXP
*  INTO TABLE @DATA(IT_ACMRT_RES_LOGEXP2).
*--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_ACMRT_RES_LOGEXP INDEX 1 INTO DATA(WA_ACMRT_RES_LOGEXP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ACMRT_RES_LOGEXP>-ACM_RESOTYPE = 1.
<ACMRT_RES_LOGEXP>-ACM_RESOURCE = 1.
<ACMRT_RES_LOGEXP>-ACM_OPERATION = 1.
<ACMRT_RES_LOGEXP>-ACMRTCOND_ID = 1.
<ACMRT_RES_LOGEXP>-ACMRTCOLUMN_ID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ACMRT_RES_LOGEXP-FUNCTIONAL_GRANT, sy-vline,
  WA_ACMRT_RES_LOGEXP-SEQUENCEPOS, sy-vline,
  WA_ACMRT_RES_LOGEXP-LOGIC_OPER, sy-vline,
  WA_ACMRT_RES_LOGEXP-ARITY, sy-vline,
  WA_ACMRT_RES_LOGEXP-QUANTIFIER, sy-vline,
  WA_ACMRT_RES_LOGEXP-COMP_OPER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ACMRT_RES_LOGEXP 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_ACMRT_RES_LOGEXP 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_ACMRT_RES_LOGEXP INTO WA_ACMRT_RES_LOGEXP.


*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_ACMRT_RES_LOGEXP_STR, 
ACM_RESOTYPE TYPE STRING,
ACM_RESOURCE TYPE STRING,
ACM_OPERATION TYPE STRING,
ACMRTCOND_ID TYPE STRING,
ACMRTCOLUMN_ID TYPE STRING,
FUNCTIONAL_GRANT TYPE STRING,
SEQUENCEPOS TYPE STRING,
LOGIC_OPER TYPE STRING,
ARITY TYPE STRING,
QUANTIFIER TYPE STRING,
COMP_OPER TYPE STRING,
ASPECT_TYPE TYPE STRING,
ASPECT_ID TYPE STRING,
ASPECT_FILTER TYPE STRING,
ASPECT_FILTER_EXTUSE TYPE STRING,
ASPECT_FILTER_EXTENT TYPE STRING,
DTCONDITION_ID TYPE STRING,
COLUMNPOS TYPE STRING,
COLNAME_TYPE TYPE STRING,
COLUMN_CANON_OSQL TYPE STRING,
COLUMN_CANON_OSQL_EXTUSE TYPE STRING,
COLUMN_CANON_OSQL_EXTENT TYPE STRING,
ENTITY_PARAMNAME TYPE STRING,
SESSIONVAR_NAME TYPE STRING,
LITERAL_LEFTSIDE TYPE STRING,
DCLFUNCTION_NAME TYPE STRING,
ACMCTECOLNAME_ID TYPE STRING,
VALUE_LITERAL TYPE STRING,
VALUE_LITERAL_TO TYPE STRING,
ESCAPE_CHARACTER TYPE STRING,
COLMAP_CTE_ID TYPE STRING,
COLMAP_CTE_NAME TYPE STRING,
COLMAP_CTE_FIELDNAME TYPE STRING,
BYPASS_OPERATOR TYPE STRING,
OPTIONAL_ELEMENT_OPERATOR TYPE STRING,
DUMMY0 TYPE STRING,
DUMMY1 TYPE STRING,
DUMMY2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ACMRT_RES_LOGEXP_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_ACMRT_RES_LOGEXP_STR-ACM_RESOTYPE sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ACM_RESOURCE sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ACM_OPERATION sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ACMRTCOND_ID sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ACMRTCOLUMN_ID sy-vline 
WA_ACMRT_RES_LOGEXP_STR-FUNCTIONAL_GRANT sy-vline 
WA_ACMRT_RES_LOGEXP_STR-SEQUENCEPOS sy-vline 
WA_ACMRT_RES_LOGEXP_STR-LOGIC_OPER sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ARITY sy-vline 
WA_ACMRT_RES_LOGEXP_STR-QUANTIFIER sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COMP_OPER sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ASPECT_TYPE sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ASPECT_ID sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ASPECT_FILTER sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ASPECT_FILTER_EXTUSE sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ASPECT_FILTER_EXTENT sy-vline 
WA_ACMRT_RES_LOGEXP_STR-DTCONDITION_ID sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLUMNPOS sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLNAME_TYPE sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLUMN_CANON_OSQL sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLUMN_CANON_OSQL_EXTUSE sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLUMN_CANON_OSQL_EXTENT sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ENTITY_PARAMNAME sy-vline 
WA_ACMRT_RES_LOGEXP_STR-SESSIONVAR_NAME sy-vline 
WA_ACMRT_RES_LOGEXP_STR-LITERAL_LEFTSIDE sy-vline 
WA_ACMRT_RES_LOGEXP_STR-DCLFUNCTION_NAME sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ACMCTECOLNAME_ID sy-vline 
WA_ACMRT_RES_LOGEXP_STR-VALUE_LITERAL sy-vline 
WA_ACMRT_RES_LOGEXP_STR-VALUE_LITERAL_TO sy-vline 
WA_ACMRT_RES_LOGEXP_STR-ESCAPE_CHARACTER sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLMAP_CTE_ID sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLMAP_CTE_NAME sy-vline 
WA_ACMRT_RES_LOGEXP_STR-COLMAP_CTE_FIELDNAME sy-vline 
WA_ACMRT_RES_LOGEXP_STR-BYPASS_OPERATOR sy-vline 
WA_ACMRT_RES_LOGEXP_STR-OPTIONAL_ELEMENT_OPERATOR sy-vline 
WA_ACMRT_RES_LOGEXP_STR-DUMMY0 sy-vline 
WA_ACMRT_RES_LOGEXP_STR-DUMMY1 sy-vline 
WA_ACMRT_RES_LOGEXP_STR-DUMMY2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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