ABAP Select data from SAP table /SAPAPO/RLCDEL_LOG_STR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SAPAPO/RLCDEL_LOG_STR 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 /SAPAPO/RLCDEL_LOG_STR. 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 /SAPAPO/RLCDEL_LOG_STR 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_/SAPAPO/RLCDEL_LOG_STR TYPE STANDARD TABLE OF /SAPAPO/RLCDEL_LOG_STR,
      WA_/SAPAPO/RLCDEL_LOG_STR TYPE /SAPAPO/RLCDEL_LOG_STR,
      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: </SAPAPO/RLCDEL_LOG_STR> TYPE /SAPAPO/RLCDEL_LOG_STR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SAPAPO/RLCDEL_LOG_STR
  INTO TABLE IT_/SAPAPO/RLCDEL_LOG_STR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/RLCDEL_LOG_STR
*  INTO TABLE @DATA(IT_/SAPAPO/RLCDEL_LOG_STR2).
*--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_/SAPAPO/RLCDEL_LOG_STR INDEX 1 INTO DATA(WA_/SAPAPO/RLCDEL_LOG_STR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SAPAPO/RLCDEL_LOG_STR ASSIGNING </SAPAPO/RLCDEL_LOG_STR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/RLCDEL_LOG_STR>-DATE = 1.
</SAPAPO/RLCDEL_LOG_STR>-TIME = 1.
</SAPAPO/RLCDEL_LOG_STR>-UNAME = 1.
</SAPAPO/RLCDEL_LOG_STR>-SNP = 1.
</SAPAPO/RLCDEL_LOG_STR>-PPDS = 1.

ENDLOOP.

LOOP AT IT_/SAPAPO/RLCDEL_LOG_STR INTO WA_/SAPAPO/RLCDEL_LOG_STR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/RLCDEL_LOG_STR-APO, sy-vline,
  WA_/SAPAPO/RLCDEL_LOG_STR-R3, sy-vline,
  WA_/SAPAPO/RLCDEL_LOG_STR-PACKSIZE, sy-vline,
  WA_/SAPAPO/RLCDEL_LOG_STR-PAREA, sy-vline,
  WA_/SAPAPO/RLCDEL_LOG_STR-PLOBID, sy-vline,
  WA_/SAPAPO/RLCDEL_LOG_STR-KEYF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/RLCDEL_LOG_STR 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_/SAPAPO/RLCDEL_LOG_STR 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_/SAPAPO/RLCDEL_LOG_STR INTO WA_/SAPAPO/RLCDEL_LOG_STR.


*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 PARE2, internal->external for field PAREA
CALL FUNCTION 'CONVERSION_EXIT_PARE2_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/RLCDEL_LOG_STR-PAREA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/RLCDEL_LOG_STR-PAREA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PLOBC, internal->external for field PLOBID
CALL FUNCTION 'CONVERSION_EXIT_PLOBC_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/RLCDEL_LOG_STR-PLOBID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/RLCDEL_LOG_STR-PLOBID.
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_/SAPAPO/RLCDEL_LOG_STR_STR, 
DATE TYPE STRING,
TIME TYPE STRING,
UNAME TYPE STRING,
SNP TYPE STRING,
PPDS TYPE STRING,
APO TYPE STRING,
R3 TYPE STRING,
PACKSIZE TYPE STRING,
PAREA TYPE STRING,
PLOBID TYPE STRING,
KEYF TYPE STRING,
CAT TYPE STRING,
STAT TYPE STRING,
VERSION TYPE STRING,
PROD TYPE STRING,
LOC TYPE STRING,
STIME TYPE STRING,
HORIZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/RLCDEL_LOG_STR_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_/SAPAPO/RLCDEL_LOG_STR_STR-DATE sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-TIME sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-UNAME sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-SNP sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-PPDS sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-APO sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-R3 sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-PACKSIZE sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-PAREA sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-PLOBID sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-KEYF sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-CAT sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-STAT sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-VERSION sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-PROD sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-LOC sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-STIME sy-vline 
WA_/SAPAPO/RLCDEL_LOG_STR_STR-HORIZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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