ABAP Select data from SAP table PMXP_SARVOLUN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PMXP_SARVOLUN
*  INTO TABLE @DATA(IT_PMXP_SARVOLUN2).
*--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_PMXP_SARVOLUN INDEX 1 INTO DATA(WA_PMXP_SARVOLUN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PMXP_SARVOLUN>-REC_TYPE = 1.
<PMXP_SARVOLUN>-ID_SERVICE = 1.
<PMXP_SARVOLUN>-ID_OPER = 1.
<PMXP_SARVOLUN>-ORIG_ENTYPE = 1.
<PMXP_SARVOLUN>-ORIG_ENTCD = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PMXP_SARVOLUN-REC_ENTYPE, sy-vline,
  WA_PMXP_SARVOLUN-REC_ENTCD, sy-vline,
  WA_PMXP_SARVOLUN-NOTIFY_DT, sy-vline,
  WA_PMXP_SARVOLUN-INST_RFC, sy-vline,
  WA_PMXP_SARVOLUN-NAME_PAYCT, sy-vline,
  WA_PMXP_SARVOLUN-PAYCT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PMXP_SARVOLUN 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_PMXP_SARVOLUN 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_PMXP_SARVOLUN INTO WA_PMXP_SARVOLUN.


*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_PMXP_SARVOLUN_STR, 
REC_TYPE TYPE STRING,
ID_SERVICE TYPE STRING,
ID_OPER TYPE STRING,
ORIG_ENTYPE TYPE STRING,
ORIG_ENTCD TYPE STRING,
REC_ENTYPE TYPE STRING,
REC_ENTCD TYPE STRING,
NOTIFY_DT TYPE STRING,
INST_RFC TYPE STRING,
NAME_PAYCT TYPE STRING,
PAYCT TYPE STRING,
BRANCHCD TYPE STRING,
PAY_AGENT TYPE STRING,
PC_ADDRESS TYPE STRING,
PC_DISTRICT TYPE STRING,
PC_CITY TYPE STRING,
PC_ZIP TYPE STRING,
PC_FEDENT TYPE STRING,
PC_PHONE TYPE STRING,
EMPLO_NUM TYPE STRING,
CONTDATE TYPE STRING,
CONTSAV TYPE STRING,
CONTVOL TYPE STRING,
CONTRET TYPE STRING,
CONTTOTAL TYPE STRING,
CONTSAVCHAR TYPE STRING,
CONTVOLCHAR TYPE STRING,
CONTRETCHAR TYPE STRING,
CONTTOTALCHAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PMXP_SARVOLUN_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_PMXP_SARVOLUN_STR-REC_TYPE sy-vline 
WA_PMXP_SARVOLUN_STR-ID_SERVICE sy-vline 
WA_PMXP_SARVOLUN_STR-ID_OPER sy-vline 
WA_PMXP_SARVOLUN_STR-ORIG_ENTYPE sy-vline 
WA_PMXP_SARVOLUN_STR-ORIG_ENTCD sy-vline 
WA_PMXP_SARVOLUN_STR-REC_ENTYPE sy-vline 
WA_PMXP_SARVOLUN_STR-REC_ENTCD sy-vline 
WA_PMXP_SARVOLUN_STR-NOTIFY_DT sy-vline 
WA_PMXP_SARVOLUN_STR-INST_RFC sy-vline 
WA_PMXP_SARVOLUN_STR-NAME_PAYCT sy-vline 
WA_PMXP_SARVOLUN_STR-PAYCT sy-vline 
WA_PMXP_SARVOLUN_STR-BRANCHCD sy-vline 
WA_PMXP_SARVOLUN_STR-PAY_AGENT sy-vline 
WA_PMXP_SARVOLUN_STR-PC_ADDRESS sy-vline 
WA_PMXP_SARVOLUN_STR-PC_DISTRICT sy-vline 
WA_PMXP_SARVOLUN_STR-PC_CITY sy-vline 
WA_PMXP_SARVOLUN_STR-PC_ZIP sy-vline 
WA_PMXP_SARVOLUN_STR-PC_FEDENT sy-vline 
WA_PMXP_SARVOLUN_STR-PC_PHONE sy-vline 
WA_PMXP_SARVOLUN_STR-EMPLO_NUM sy-vline 
WA_PMXP_SARVOLUN_STR-CONTDATE sy-vline 
WA_PMXP_SARVOLUN_STR-CONTSAV sy-vline 
WA_PMXP_SARVOLUN_STR-CONTVOL sy-vline 
WA_PMXP_SARVOLUN_STR-CONTRET sy-vline 
WA_PMXP_SARVOLUN_STR-CONTTOTAL sy-vline 
WA_PMXP_SARVOLUN_STR-CONTSAVCHAR sy-vline 
WA_PMXP_SARVOLUN_STR-CONTVOLCHAR sy-vline 
WA_PMXP_SARVOLUN_STR-CONTRETCHAR sy-vline 
WA_PMXP_SARVOLUN_STR-CONTTOTALCHAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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