ABAP Select data from SAP table SCMPRDVML4 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SCMPRDVML4 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 SCMPRDVML4. 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 SCMPRDVML4 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_SCMPRDVML4 TYPE STANDARD TABLE OF SCMPRDVML4,
      WA_SCMPRDVML4 TYPE SCMPRDVML4,
      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: <SCMPRDVML4> TYPE SCMPRDVML4.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_SCMPRDVML4.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM SCMPRDVML4
  INTO TABLE IT_SCMPRDVML4.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SCMPRDVML4
*  INTO TABLE @DATA(IT_SCMPRDVML42).
*--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_SCMPRDVML4 INDEX 1 INTO DATA(WA_SCMPRDVML42).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_SCMPRDVML4 ASSIGNING <SCMPRDVML4>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SCMPRDVML4>-MANDT = 1.
<SCMPRDVML4>-MATID = 1.
<SCMPRDVML4>-LOCID = 1.
<SCMPRDVML4>-LOCNO = 1.
<SCMPRDVML4>-LOCTYPE = 1.

ENDLOOP.

LOOP AT IT_SCMPRDVML4 INTO WA_SCMPRDVML4.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SCMPRDVML4-PLANNER_PPS, sy-vline,
  WA_SCMPRDVML4-PLANNER_SNP, sy-vline,
  WA_SCMPRDVML4-PLANNER_DEMAND, sy-vline,
  WA_SCMPRDVML4-PLANNER_TRANS, sy-vline,
  WA_SCMPRDVML4-LVORM, sy-vline,
  WA_SCMPRDVML4-EKGRP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SCMPRDVML4 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_SCMPRDVML4 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_SCMPRDVML4 INTO WA_SCMPRDVML4.


*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_SCMPRDVML4_STR, 
MANDT TYPE STRING,
MATID TYPE STRING,
LOCID TYPE STRING,
LOCNO TYPE STRING,
LOCTYPE TYPE STRING,
PLANNER_PPS TYPE STRING,
PLANNER_SNP TYPE STRING,
PLANNER_DEMAND TYPE STRING,
PLANNER_TRANS TYPE STRING,
LVORM TYPE STRING,
EKGRP TYPE STRING,
PRIO TYPE STRING,
VEGRP TYPE STRING,
MATLOCID TYPE STRING,
BESKZ TYPE STRING,
AT101 TYPE STRING,
AT102 TYPE STRING,
AT103 TYPE STRING,
AT104 TYPE STRING,
AT105 TYPE STRING,
RRP_SEL_GROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SCMPRDVML4_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_SCMPRDVML4_STR-MANDT sy-vline 
WA_SCMPRDVML4_STR-MATID sy-vline 
WA_SCMPRDVML4_STR-LOCID sy-vline 
WA_SCMPRDVML4_STR-LOCNO sy-vline 
WA_SCMPRDVML4_STR-LOCTYPE sy-vline 
WA_SCMPRDVML4_STR-PLANNER_PPS sy-vline 
WA_SCMPRDVML4_STR-PLANNER_SNP sy-vline 
WA_SCMPRDVML4_STR-PLANNER_DEMAND sy-vline 
WA_SCMPRDVML4_STR-PLANNER_TRANS sy-vline 
WA_SCMPRDVML4_STR-LVORM sy-vline 
WA_SCMPRDVML4_STR-EKGRP sy-vline 
WA_SCMPRDVML4_STR-PRIO sy-vline 
WA_SCMPRDVML4_STR-VEGRP sy-vline 
WA_SCMPRDVML4_STR-MATLOCID sy-vline 
WA_SCMPRDVML4_STR-BESKZ sy-vline 
WA_SCMPRDVML4_STR-AT101 sy-vline 
WA_SCMPRDVML4_STR-AT102 sy-vline 
WA_SCMPRDVML4_STR-AT103 sy-vline 
WA_SCMPRDVML4_STR-AT104 sy-vline 
WA_SCMPRDVML4_STR-AT105 sy-vline 
WA_SCMPRDVML4_STR-RRP_SEL_GROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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