ABAP Select data from SAP table PMLRELVCURTP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMLRELVCURTP
*  INTO TABLE @DATA(IT_PMLRELVCURTP2).
*--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_PMLRELVCURTP INDEX 1 INTO DATA(WA_PMLRELVCURTP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMLRELVCURTP>-MANDT = 1.
<PMLRELVCURTP>-RLDNR = 1.
<PMLRELVCURTP>-BUKRS = 1.
<PMLRELVCURTP>-CURTPH = 1.
<PMLRELVCURTP>-CURTPH_NAME = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMLRELVCURTP-RLDNRH, sy-vline,
  WA_PMLRELVCURTP-EXT_CURTPH, sy-vline,
  WA_PMLRELVCURTP-CURTPK, sy-vline,
  WA_PMLRELVCURTP-CURTPK_NAME, sy-vline,
  WA_PMLRELVCURTP-RLDNRK, sy-vline,
  WA_PMLRELVCURTP-EXT_CURTPK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMLRELVCURTP 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_PMLRELVCURTP 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_PMLRELVCURTP INTO WA_PMLRELVCURTP.


*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 RLDNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRH
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRV
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field RLDNRG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PMLRELVCURTP-RLDNRG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PMLRELVCURTP-RLDNRG.
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_PMLRELVCURTP_STR, 
MANDT TYPE STRING,
RLDNR TYPE STRING,
BUKRS TYPE STRING,
CURTPH TYPE STRING,
CURTPH_NAME TYPE STRING,
RLDNRH TYPE STRING,
EXT_CURTPH TYPE STRING,
CURTPK TYPE STRING,
CURTPK_NAME TYPE STRING,
RLDNRK TYPE STRING,
EXT_CURTPK TYPE STRING,
CURTPO TYPE STRING,
CURTPO_NAME TYPE STRING,
RLDNRO TYPE STRING,
EXT_CURTPO TYPE STRING,
CURTPV TYPE STRING,
CURTPV_NAME TYPE STRING,
RLDNRV TYPE STRING,
EXT_CURTPV TYPE STRING,
CURTPB TYPE STRING,
CURTPB_NAME TYPE STRING,
RLDNRB TYPE STRING,
EXT_CURTPB TYPE STRING,
CURTPC TYPE STRING,
CURTPC_NAME TYPE STRING,
RLDNRC TYPE STRING,
EXT_CURTPC TYPE STRING,
CURTPD TYPE STRING,
CURTPD_NAME TYPE STRING,
RLDNRD TYPE STRING,
EXT_CURTPD TYPE STRING,
CURTPE TYPE STRING,
CURTPE_NAME TYPE STRING,
RLDNRE TYPE STRING,
EXT_CURTPE TYPE STRING,
CURTPF TYPE STRING,
CURTPF_NAME TYPE STRING,
RLDNRF TYPE STRING,
EXT_CURTPF TYPE STRING,
CURTPG TYPE STRING,
CURTPG_NAME TYPE STRING,
RLDNRG TYPE STRING,
EXT_CURTPG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMLRELVCURTP_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_PMLRELVCURTP_STR-MANDT sy-vline 
WA_PMLRELVCURTP_STR-RLDNR sy-vline 
WA_PMLRELVCURTP_STR-BUKRS sy-vline 
WA_PMLRELVCURTP_STR-CURTPH sy-vline 
WA_PMLRELVCURTP_STR-CURTPH_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRH sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPH sy-vline 
WA_PMLRELVCURTP_STR-CURTPK sy-vline 
WA_PMLRELVCURTP_STR-CURTPK_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRK sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPK sy-vline 
WA_PMLRELVCURTP_STR-CURTPO sy-vline 
WA_PMLRELVCURTP_STR-CURTPO_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRO sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPO sy-vline 
WA_PMLRELVCURTP_STR-CURTPV sy-vline 
WA_PMLRELVCURTP_STR-CURTPV_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRV sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPV sy-vline 
WA_PMLRELVCURTP_STR-CURTPB sy-vline 
WA_PMLRELVCURTP_STR-CURTPB_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRB sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPB sy-vline 
WA_PMLRELVCURTP_STR-CURTPC sy-vline 
WA_PMLRELVCURTP_STR-CURTPC_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRC sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPC sy-vline 
WA_PMLRELVCURTP_STR-CURTPD sy-vline 
WA_PMLRELVCURTP_STR-CURTPD_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRD sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPD sy-vline 
WA_PMLRELVCURTP_STR-CURTPE sy-vline 
WA_PMLRELVCURTP_STR-CURTPE_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRE sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPE sy-vline 
WA_PMLRELVCURTP_STR-CURTPF sy-vline 
WA_PMLRELVCURTP_STR-CURTPF_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRF sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPF sy-vline 
WA_PMLRELVCURTP_STR-CURTPG sy-vline 
WA_PMLRELVCURTP_STR-CURTPG_NAME sy-vline 
WA_PMLRELVCURTP_STR-RLDNRG sy-vline 
WA_PMLRELVCURTP_STR-EXT_CURTPG sy-vline      INTO ld_text SEPARATED BY SPACE.

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