ABAP Select data from SAP table /ISDFPS/MLI_S_ORD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ISDFPS/MLI_S_ORD
*  INTO TABLE @DATA(IT_/ISDFPS/MLI_S_ORD2).
*--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_/ISDFPS/MLI_S_ORD INDEX 1 INTO DATA(WA_/ISDFPS/MLI_S_ORD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ISDFPS/MLI_S_ORD>-MATNR = 1.
</ISDFPS/MLI_S_ORD>-CHARG = 1.
</ISDFPS/MLI_S_ORD>-PS_PSP_PNR = 1.
</ISDFPS/MLI_S_ORD>-EBELN = 1.
</ISDFPS/MLI_S_ORD>-MBDAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ISDFPS/MLI_S_ORD-VBELN, sy-vline,
  WA_/ISDFPS/MLI_S_ORD-EBELP, sy-vline,
  WA_/ISDFPS/MLI_S_ORD-ETENR, sy-vline,
  WA_/ISDFPS/MLI_S_ORD-WEBRE, sy-vline,
  WA_/ISDFPS/MLI_S_ORD-WERKS, sy-vline,
  WA_/ISDFPS/MLI_S_ORD-LGORT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ISDFPS/MLI_S_ORD 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_/ISDFPS/MLI_S_ORD 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_/ISDFPS/MLI_S_ORD INTO WA_/ISDFPS/MLI_S_ORD.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MLI_S_ORD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MLI_S_ORD-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MLI_S_ORD-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MLI_S_ORD-PS_PSP_PNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit GERNR, internal->external for field SERNR
CALL FUNCTION 'CONVERSION_EXIT_GERNR_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MLI_S_ORD-SERNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MLI_S_ORD-SERNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MLI_S_ORD-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MLI_S_ORD-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field LMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/ISDFPS/MLI_S_ORD-LMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ISDFPS/MLI_S_ORD-LMEIN.
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_/ISDFPS/MLI_S_ORD_STR, 
MATNR TYPE STRING,
CHARG TYPE STRING,
PS_PSP_PNR TYPE STRING,
EBELN TYPE STRING,
MBDAT TYPE STRING,
VBELN TYPE STRING,
EBELP TYPE STRING,
ETENR TYPE STRING,
WEBRE TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
RESWK TYPE STRING,
RESLO TYPE STRING,
MENGE TYPE STRING,
WAMNG TYPE STRING,
WEMNG TYPE STRING,
QUOORD TYPE STRING,
SERNP TYPE STRING,
ANZSN TYPE STRING,
SERNR TYPE STRING,
EQUNR TYPE STRING,
EINDT TYPE STRING,
LIFNR TYPE STRING,
POSNR TYPE STRING,
PRIO_REQ TYPE STRING,
PRIO_URG TYPE STRING,
BSART TYPE STRING,
ADVCODE TYPE STRING,
RELOC_ID TYPE STRING,
RELOC_SEQ_ID TYPE STRING,
BANFN TYPE STRING,
BNFPO TYPE STRING,
VGPOS TYPE STRING,
HUPOS TYPE STRING,
DLVTP TYPE STRING,
HAS_HU TYPE STRING,
HAS_INBOUND TYPE STRING,
VGLIF TYPE STRING,
VGLPO TYPE STRING,
WBSTK TYPE STRING,
BEDAT TYPE STRING,
MEINS TYPE STRING,
VBTYP TYPE STRING,
EKGRP TYPE STRING,
RSNUM TYPE STRING,
PSTYP TYPE STRING,
LMEIN TYPE STRING,
UMREZ TYPE STRING,
UMREN TYPE STRING,
UEBPO TYPE STRING,
LOEKZ TYPE STRING,
STAPO TYPE STRING,
ELIKZ TYPE STRING,
AFNAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ISDFPS/MLI_S_ORD_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_/ISDFPS/MLI_S_ORD_STR-MATNR sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-CHARG sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-PS_PSP_PNR sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-EBELN sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-MBDAT sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-VBELN sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-EBELP sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-ETENR sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-WEBRE sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-WERKS sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-LGORT sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-RESWK sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-RESLO sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-MENGE sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-WAMNG sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-WEMNG sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-QUOORD sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-SERNP sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-ANZSN sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-SERNR sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-EQUNR sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-EINDT sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-LIFNR sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-POSNR sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-PRIO_REQ sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-PRIO_URG sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-BSART sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-ADVCODE sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-RELOC_ID sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-RELOC_SEQ_ID sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-BANFN sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-BNFPO sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-VGPOS sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-HUPOS sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-DLVTP sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-HAS_HU sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-HAS_INBOUND sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-VGLIF sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-VGLPO sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-WBSTK sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-BEDAT sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-MEINS sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-VBTYP sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-EKGRP sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-RSNUM sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-PSTYP sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-LMEIN sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-UMREZ sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-UMREN sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-UEBPO sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-LOEKZ sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-STAPO sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-ELIKZ sy-vline 
WA_/ISDFPS/MLI_S_ORD_STR-AFNAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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