ABAP Select data from SAP table RMF64LOCK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RMF64LOCK 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 RMF64LOCK. 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 RMF64LOCK 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_RMF64LOCK TYPE STANDARD TABLE OF RMF64LOCK,
      WA_RMF64LOCK TYPE RMF64LOCK,
      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: <RMF64LOCK> TYPE RMF64LOCK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RMF64LOCK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RMF64LOCK
  INTO TABLE IT_RMF64LOCK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RMF64LOCK
*  INTO TABLE @DATA(IT_RMF64LOCK2).
*--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_RMF64LOCK INDEX 1 INTO DATA(WA_RMF64LOCK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RMF64LOCK ASSIGNING <RMF64LOCK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RMF64LOCK>-BUKRS = 1.
<RMF64LOCK>-RLDEPO = 1.
<RMF64LOCK>-RANL = 1.
<RMF64LOCK>-BNOMINAL = 1.
<RMF64LOCK>-ASTUECK = 1.

ENDLOOP.

LOOP AT IT_RMF64LOCK INTO WA_RMF64LOCK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RMF64LOCK-SBWHR, sy-vline,
  WA_RMF64LOCK-SSPERR, sy-vline,
  WA_RMF64LOCK-DSPERR, sy-vline,
  WA_RMF64LOCK-XBAUSG, sy-vline,
  WA_RMF64LOCK-BAUSG, sy-vline,
  WA_RMF64LOCK-XNOMST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RMF64LOCK 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_RMF64LOCK 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_RMF64LOCK INTO WA_RMF64LOCK.


*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 ALPHA, internal->external for field RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RMF64LOCK-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RMF64LOCK-RANL.
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_RMF64LOCK_STR, 
BUKRS TYPE STRING,
RLDEPO TYPE STRING,
RANL TYPE STRING,
BNOMINAL TYPE STRING,
ASTUECK TYPE STRING,
SBWHR TYPE STRING,
SSPERR TYPE STRING,
DSPERR TYPE STRING,
XBAUSG TYPE STRING,
BAUSG TYPE STRING,
XNOMST TYPE STRING,
ENTRACT TYPE STRING,
ENTRSUM TYPE STRING,
SNOTIZ TYPE STRING,
DEVAL TYPE STRING,
XALKZ TYPE STRING,
BNOM_FREI TYPE STRING,
ASTUE_FREI TYPE STRING,
XLDEPO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RMF64LOCK_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_RMF64LOCK_STR-BUKRS sy-vline 
WA_RMF64LOCK_STR-RLDEPO sy-vline 
WA_RMF64LOCK_STR-RANL sy-vline 
WA_RMF64LOCK_STR-BNOMINAL sy-vline 
WA_RMF64LOCK_STR-ASTUECK sy-vline 
WA_RMF64LOCK_STR-SBWHR sy-vline 
WA_RMF64LOCK_STR-SSPERR sy-vline 
WA_RMF64LOCK_STR-DSPERR sy-vline 
WA_RMF64LOCK_STR-XBAUSG sy-vline 
WA_RMF64LOCK_STR-BAUSG sy-vline 
WA_RMF64LOCK_STR-XNOMST sy-vline 
WA_RMF64LOCK_STR-ENTRACT sy-vline 
WA_RMF64LOCK_STR-ENTRSUM sy-vline 
WA_RMF64LOCK_STR-SNOTIZ sy-vline 
WA_RMF64LOCK_STR-DEVAL sy-vline 
WA_RMF64LOCK_STR-XALKZ sy-vline 
WA_RMF64LOCK_STR-BNOM_FREI sy-vline 
WA_RMF64LOCK_STR-ASTUE_FREI sy-vline 
WA_RMF64LOCK_STR-XLDEPO sy-vline      INTO ld_text SEPARATED BY SPACE.

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