ABAP Select data from SAP table /SCMB/ALPRMH7121 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCMB/ALPRMH7121 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 /SCMB/ALPRMH7121. 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 /SCMB/ALPRMH7121 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_/SCMB/ALPRMH7121 TYPE STANDARD TABLE OF /SCMB/ALPRMH7121,
      WA_/SCMB/ALPRMH7121 TYPE /SCMB/ALPRMH7121,
      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: </SCMB/ALPRMH7121> TYPE /SCMB/ALPRMH7121.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SCMB/ALPRMH7121.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SCMB/ALPRMH7121
  INTO TABLE IT_/SCMB/ALPRMH7121.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCMB/ALPRMH7121
*  INTO TABLE @DATA(IT_/SCMB/ALPRMH71212).
*--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_/SCMB/ALPRMH7121 INDEX 1 INTO DATA(WA_/SCMB/ALPRMH71212).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SCMB/ALPRMH7121 ASSIGNING </SCMB/ALPRMH7121>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCMB/ALPRMH7121>-MANDT = 1.
</SCMB/ALPRMH7121>-AID = 1.
</SCMB/ALPRMH7121>-ALTRACKID = 1.
</SCMB/ALPRMH7121>-ODMORDNO = 1.
</SCMB/ALPRMH7121>-ITMNO = 1.

ENDLOOP.

LOOP AT IT_/SCMB/ALPRMH7121 INTO WA_/SCMB/ALPRMH7121.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCMB/ALPRMH7121-PARTNER_TO, sy-vline,
  WA_/SCMB/ALPRMH7121-PARTNER_FROM, sy-vline,
  WA_/SCMB/ALPRMH7121-POITMQUAN, sy-vline,
  WA_/SCMB/ALPRMH7121-UNIT, sy-vline,
  WA_/SCMB/ALPRMH7121-POCFMITMQUAN, sy-vline,
  WA_/SCMB/ALPRMH7121-CFMUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCMB/ALPRMH7121 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_/SCMB/ALPRMH7121 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_/SCMB/ALPRMH7121 INTO WA_/SCMB/ALPRMH7121.


*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 PITCV, internal->external for field ITMNO
CALL FUNCTION 'CONVERSION_EXIT_PITCV_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-ITMNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-ITMNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-UNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field CFMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-CFMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-CFMUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field EARLYDELVTST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-EARLYDELVTST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-EARLYDELVTST.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNER_GR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-PARTNER_GR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-PARTNER_GR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PO_SDLNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-PO_SDLNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-PO_SDLNO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ALDUEUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-ALDUEUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-ALDUEUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field ALDUETST
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_/SCMB/ALPRMH7121-ALDUETST
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCMB/ALPRMH7121-ALDUETST.
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_/SCMB/ALPRMH7121_STR, 
MANDT TYPE STRING,
AID TYPE STRING,
ALTRACKID TYPE STRING,
ODMORDNO TYPE STRING,
ITMNO TYPE STRING,
PARTNER_TO TYPE STRING,
PARTNER_FROM TYPE STRING,
POITMQUAN TYPE STRING,
UNIT TYPE STRING,
POCFMITMQUAN TYPE STRING,
CFMUNIT TYPE STRING,
EARLYDELVTST TYPE STRING,
TMZONE TYPE STRING,
PARTNER_GR TYPE STRING,
PO_SDLNO TYPE STRING,
CMPNO TYPE STRING,
CMPMATID TYPE STRING,
ALDUEQTY TYPE STRING,
ALDUEUNIT TYPE STRING,
ALDUETST TYPE STRING,
ALDUETZONE TYPE STRING,
CHECK_NAME TYPE STRING,
MESSAGETYPE TYPE STRING,
MESSAGE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCMB/ALPRMH7121_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_/SCMB/ALPRMH7121_STR-MANDT sy-vline 
WA_/SCMB/ALPRMH7121_STR-AID sy-vline 
WA_/SCMB/ALPRMH7121_STR-ALTRACKID sy-vline 
WA_/SCMB/ALPRMH7121_STR-ODMORDNO sy-vline 
WA_/SCMB/ALPRMH7121_STR-ITMNO sy-vline 
WA_/SCMB/ALPRMH7121_STR-PARTNER_TO sy-vline 
WA_/SCMB/ALPRMH7121_STR-PARTNER_FROM sy-vline 
WA_/SCMB/ALPRMH7121_STR-POITMQUAN sy-vline 
WA_/SCMB/ALPRMH7121_STR-UNIT sy-vline 
WA_/SCMB/ALPRMH7121_STR-POCFMITMQUAN sy-vline 
WA_/SCMB/ALPRMH7121_STR-CFMUNIT sy-vline 
WA_/SCMB/ALPRMH7121_STR-EARLYDELVTST sy-vline 
WA_/SCMB/ALPRMH7121_STR-TMZONE sy-vline 
WA_/SCMB/ALPRMH7121_STR-PARTNER_GR sy-vline 
WA_/SCMB/ALPRMH7121_STR-PO_SDLNO sy-vline 
WA_/SCMB/ALPRMH7121_STR-CMPNO sy-vline 
WA_/SCMB/ALPRMH7121_STR-CMPMATID sy-vline 
WA_/SCMB/ALPRMH7121_STR-ALDUEQTY sy-vline 
WA_/SCMB/ALPRMH7121_STR-ALDUEUNIT sy-vline 
WA_/SCMB/ALPRMH7121_STR-ALDUETST sy-vline 
WA_/SCMB/ALPRMH7121_STR-ALDUETZONE sy-vline 
WA_/SCMB/ALPRMH7121_STR-CHECK_NAME sy-vline 
WA_/SCMB/ALPRMH7121_STR-MESSAGETYPE sy-vline 
WA_/SCMB/ALPRMH7121_STR-MESSAGE sy-vline      INTO ld_text SEPARATED BY SPACE.

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