ABAP Select data from SAP table PSLOWMOMATSTDAT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PSLOWMOMATSTDAT
*  INTO TABLE @DATA(IT_PSLOWMOMATSTDAT2).
*--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_PSLOWMOMATSTDAT INDEX 1 INTO DATA(WA_PSLOWMOMATSTDAT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PSLOWMOMATSTDAT>-MANDT = 1.
<PSLOWMOMATSTDAT>-CALENDARMONTH = 1.
<PSLOWMOMATSTDAT>-MATERIAL = 1.
<PSLOWMOMATSTDAT>-PLANT = 1.
<PSLOWMOMATSTDAT>-MATERIALBASEUNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PSLOWMOMATSTDAT-PRODUCTGROUP, sy-vline,
  WA_PSLOWMOMATSTDAT-PRODUCTTYPE, sy-vline,
  WA_PSLOWMOMATSTDAT-STOCKQTYM1, sy-vline,
  WA_PSLOWMOMATSTDAT-STOCKQTYM2, sy-vline,
  WA_PSLOWMOMATSTDAT-STOCKQTYM3, sy-vline,
  WA_PSLOWMOMATSTDAT-STOCKQTYM4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PSLOWMOMATSTDAT 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_PSLOWMOMATSTDAT 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_PSLOWMOMATSTDAT INTO WA_PSLOWMOMATSTDAT.


*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 MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PSLOWMOMATSTDAT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSLOWMOMATSTDAT-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MATERIALBASEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PSLOWMOMATSTDAT-MATERIALBASEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PSLOWMOMATSTDAT-MATERIALBASEUNIT.
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_PSLOWMOMATSTDAT_STR, 
MANDT TYPE STRING,
CALENDARMONTH TYPE STRING,
MATERIAL TYPE STRING,
PLANT TYPE STRING,
MATERIALBASEUNIT TYPE STRING,
PRODUCTGROUP TYPE STRING,
PRODUCTTYPE TYPE STRING,
STOCKQTYM1 TYPE STRING,
STOCKQTYM2 TYPE STRING,
STOCKQTYM3 TYPE STRING,
STOCKQTYM4 TYPE STRING,
STOCKQTYM5 TYPE STRING,
STOCKQTYM6 TYPE STRING,
TARGET TYPE STRING,
STOCKDELTAM2M1 TYPE STRING,
STOCKDELTAM3M2 TYPE STRING,
STOCKDELTAM4M3 TYPE STRING,
STOCKDELTAM5M4 TYPE STRING,
STOCKDELTAM6M5 TYPE STRING,
STOCKRATIOM2M1 TYPE STRING,
STOCKRATIOM3M2 TYPE STRING,
STOCKRATIOM4M3 TYPE STRING,
STOCKRATIOM5M4 TYPE STRING,
STOCKRATIOM6M5 TYPE STRING,
NUMBEROFBOMM5 TYPE STRING,
NUMBEROFBOMM6 TYPE STRING,
NUMBEROFBOMM7 TYPE STRING,
NUMBEROFBOMM8 TYPE STRING,
NUMBEROFBOMM9 TYPE STRING,
NUMBEROFBOMM10 TYPE STRING,
NUMBEROFBOMDELTAM6M5 TYPE STRING,
NUMBEROFBOMDELTAM7M6 TYPE STRING,
NUMBEROFBOMDELTAM8M7 TYPE STRING,
NUMBEROFBOMDELTAM9M8 TYPE STRING,
NUMBEROFBOMDELTAM10M9 TYPE STRING,
BOMRATIOM6M5 TYPE STRING,
BOMRATIOM7M6 TYPE STRING,
BOMRATIOM8M7 TYPE STRING,
BOMRATIOM9M8 TYPE STRING,
BOMRATIOM10M9 TYPE STRING,
STOCKINTERVALM1 TYPE STRING,
STOCKINTERVALM2 TYPE STRING,
STOCKINTERVALM3 TYPE STRING,
STOCKINTERVALM4 TYPE STRING,
STOCKINTERVALM5 TYPE STRING,
STOCKINTERVALM6 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PSLOWMOMATSTDAT_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_PSLOWMOMATSTDAT_STR-MANDT sy-vline 
WA_PSLOWMOMATSTDAT_STR-CALENDARMONTH sy-vline 
WA_PSLOWMOMATSTDAT_STR-MATERIAL sy-vline 
WA_PSLOWMOMATSTDAT_STR-PLANT sy-vline 
WA_PSLOWMOMATSTDAT_STR-MATERIALBASEUNIT sy-vline 
WA_PSLOWMOMATSTDAT_STR-PRODUCTGROUP sy-vline 
WA_PSLOWMOMATSTDAT_STR-PRODUCTTYPE sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKQTYM1 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKQTYM2 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKQTYM3 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKQTYM4 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKQTYM5 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKQTYM6 sy-vline 
WA_PSLOWMOMATSTDAT_STR-TARGET sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKDELTAM2M1 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKDELTAM3M2 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKDELTAM4M3 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKDELTAM5M4 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKDELTAM6M5 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKRATIOM2M1 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKRATIOM3M2 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKRATIOM4M3 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKRATIOM5M4 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKRATIOM6M5 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMM5 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMM6 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMM7 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMM8 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMM9 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMM10 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMDELTAM6M5 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMDELTAM7M6 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMDELTAM8M7 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMDELTAM9M8 sy-vline 
WA_PSLOWMOMATSTDAT_STR-NUMBEROFBOMDELTAM10M9 sy-vline 
WA_PSLOWMOMATSTDAT_STR-BOMRATIOM6M5 sy-vline 
WA_PSLOWMOMATSTDAT_STR-BOMRATIOM7M6 sy-vline 
WA_PSLOWMOMATSTDAT_STR-BOMRATIOM8M7 sy-vline 
WA_PSLOWMOMATSTDAT_STR-BOMRATIOM9M8 sy-vline 
WA_PSLOWMOMATSTDAT_STR-BOMRATIOM10M9 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKINTERVALM1 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKINTERVALM2 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKINTERVALM3 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKINTERVALM4 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKINTERVALM5 sy-vline 
WA_PSLOWMOMATSTDAT_STR-STOCKINTERVALM6 sy-vline      INTO ld_text SEPARATED BY SPACE.

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