ABAP Select data from SAP table /SAPAPO/FRE_MATLOC_I into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SAPAPO/FRE_MATLOC_I
*  INTO TABLE @DATA(IT_/SAPAPO/FRE_MATLOC_I2).
*--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_/SAPAPO/FRE_MATLOC_I INDEX 1 INTO DATA(WA_/SAPAPO/FRE_MATLOC_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SAPAPO/FRE_MATLOC_I>-RPSTATUS = 1.
</SAPAPO/FRE_MATLOC_I>-MEASGRBUY = 1.
</SAPAPO/FRE_MATLOC_I>-PURTIME = 1.
</SAPAPO/FRE_MATLOC_I>-MINSTOCK = 1.
</SAPAPO/FRE_MATLOC_I>-SALESPRICE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SAPAPO/FRE_MATLOC_I-BWSCL, sy-vline,
  WA_/SAPAPO/FRE_MATLOC_I-SELLCLASS, sy-vline,
  WA_/SAPAPO/FRE_MATLOC_I-CONSREFLOCID, sy-vline,
  WA_/SAPAPO/FRE_MATLOC_I-CONSREFFAC, sy-vline,
  WA_/SAPAPO/FRE_MATLOC_I-CONSREFVALTO, sy-vline,
  WA_/SAPAPO/FRE_MATLOC_I-TARGETSTOCK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SAPAPO/FRE_MATLOC_I 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_/SAPAPO/FRE_MATLOC_I 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_/SAPAPO/FRE_MATLOC_I INTO WA_/SAPAPO/FRE_MATLOC_I.


*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 TSTRG, internal->external for field PURTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/FRE_MATLOC_I-PURTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/FRE_MATLOC_I-PURTIME.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTRG, internal->external for field RELTIME
CALL FUNCTION 'CONVERSION_EXIT_TSTRG_OUTPUT'
  EXPORTING
    input =                      WA_/SAPAPO/FRE_MATLOC_I-RELTIME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SAPAPO/FRE_MATLOC_I-RELTIME.
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_/SAPAPO/FRE_MATLOC_I_STR, 
RPSTATUS TYPE STRING,
MEASGRBUY TYPE STRING,
PURTIME TYPE STRING,
MINSTOCK TYPE STRING,
SALESPRICE TYPE STRING,
BWSCL TYPE STRING,
SELLCLASS TYPE STRING,
CONSREFLOCID TYPE STRING,
CONSREFFAC TYPE STRING,
CONSREFVALTO TYPE STRING,
TARGETSTOCK TYPE STRING,
STOCKMULTIPLE TYPE STRING,
RELTIME TYPE STRING,
SEASON TYPE STRING,
LISTINGSTATUS TYPE STRING,
PROFCST TYPE STRING,
PROREPL TYPE STRING,
PROEXCP TYPE STRING,
PROCL TYPE STRING,
LEADTIMESHIFT TYPE STRING,
FCHOROP TYPE STRING,
FCOUTDAY TYPE STRING,
FCOUTWEEK TYPE STRING,
PROSL TYPE STRING,
PROFCFRQ TYPE STRING,
TEMPRPBLOCK TYPE STRING,
INITBUY TYPE STRING,
MINTROC TYPE STRING,
MAXTROC TYPE STRING,
PROCALIB TYPE STRING,
BALGR TYPE STRING,
PROPREALLOC TYPE STRING,
SUBSTLOCK TYPE STRING,
OFCHOR TYPE STRING,
PROOFFRQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SAPAPO/FRE_MATLOC_I_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_/SAPAPO/FRE_MATLOC_I_STR-RPSTATUS sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-MEASGRBUY sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PURTIME sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-MINSTOCK sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-SALESPRICE sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-BWSCL sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-SELLCLASS sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-CONSREFLOCID sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-CONSREFFAC sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-CONSREFVALTO sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-TARGETSTOCK sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-STOCKMULTIPLE sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-RELTIME sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-SEASON sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-LISTINGSTATUS sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROFCST sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROREPL sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROEXCP sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROCL sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-LEADTIMESHIFT sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-FCHOROP sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-FCOUTDAY sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-FCOUTWEEK sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROSL sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROFCFRQ sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-TEMPRPBLOCK sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-INITBUY sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-MINTROC sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-MAXTROC sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROCALIB sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-BALGR sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROPREALLOC sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-SUBSTLOCK sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-OFCHOR sy-vline 
WA_/SAPAPO/FRE_MATLOC_I_STR-PROOFFRQ sy-vline      INTO ld_text SEPARATED BY SPACE.

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