ABAP Select data from SAP table CRMD_APO_I into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRMD_APO_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 CRMD_APO_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 CRMD_APO_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_CRMD_APO_I TYPE STANDARD TABLE OF CRMD_APO_I,
      WA_CRMD_APO_I TYPE CRMD_APO_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: <CRMD_APO_I> TYPE CRMD_APO_I.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMD_APO_I
*  INTO TABLE @DATA(IT_CRMD_APO_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_CRMD_APO_I INDEX 1 INTO DATA(WA_CRMD_APO_I2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMD_APO_I>-CLIENT = 1.
<CRMD_APO_I>-GUID = 1.
<CRMD_APO_I>-PRODUCT_NUMBER = 1.
<CRMD_APO_I>-LOC_NUMBER = 1.
<CRMD_APO_I>-LOC_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMD_APO_I-ITEM_NUMBER, sy-vline,
  WA_CRMD_APO_I-SCENARIO, sy-vline,
  WA_CRMD_APO_I-ATP_RELEVANT, sy-vline,
  WA_CRMD_APO_I-TMP_OBJ_MODE, sy-vline,
  WA_CRMD_APO_I-CHECK_PROFILE, sy-vline,
  WA_CRMD_APO_I-CRM_MSG_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMD_APO_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_CRMD_APO_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_CRMD_APO_I INTO WA_CRMD_APO_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 ALPHA, internal->external for field CHECK_PROFILE
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRMD_APO_I-CHECK_PROFILE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMD_APO_I-CHECK_PROFILE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTLC, internal->external for field CHECKED_AT
CALL FUNCTION 'CONVERSION_EXIT_TSTLC_OUTPUT'
  EXPORTING
    input =                      WA_CRMD_APO_I-CHECKED_AT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRMD_APO_I-CHECKED_AT.
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_CRMD_APO_I_STR, 
CLIENT TYPE STRING,
GUID TYPE STRING,
PRODUCT_NUMBER TYPE STRING,
LOC_NUMBER TYPE STRING,
LOC_TYPE TYPE STRING,
ITEM_NUMBER TYPE STRING,
SCENARIO TYPE STRING,
ATP_RELEVANT TYPE STRING,
TMP_OBJ_MODE TYPE STRING,
CHECK_PROFILE TYPE STRING,
CRM_MSG_NO TYPE STRING,
APO_RELEASE TYPE STRING,
APO_UPD TYPE STRING,
PERSIST_ID TYPE STRING,
STATUS_1 TYPE STRING,
STATUS_2 TYPE STRING,
ATP_CATEGORY TYPE STRING,
SUB_LOCATION TYPE STRING,
PURCH_ORG TYPE STRING,
TPDS_PLANT TYPE STRING,
TPDS_LOC_TYPE TYPE STRING,
TPDS_FLAG TYPE STRING,
CARRIER_SRC TYPE STRING,
GEOROUTE_SRC TYPE STRING,
CHECKED_AT TYPE STRING,
FIRSTS_LOCATION TYPE STRING,
FIRSTS_LOC_TYPE TYPE STRING,
FACING_LOCATION TYPE STRING,
FACING_LOCTYPE TYPE STRING,
QUANTITY_FACTOR TYPE STRING,
QUANTITY_DIVISOR TYPE STRING,
INITIATOR_PROC TYPE STRING,
CD_LOCATION TYPE STRING,
CD_LOCATION_TYPE TYPE STRING,
CONS_LOCATION TYPE STRING,
CONS_LOCTYPE TYPE STRING,
APO_COUNTER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMD_APO_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_CRMD_APO_I_STR-CLIENT sy-vline 
WA_CRMD_APO_I_STR-GUID sy-vline 
WA_CRMD_APO_I_STR-PRODUCT_NUMBER sy-vline 
WA_CRMD_APO_I_STR-LOC_NUMBER sy-vline 
WA_CRMD_APO_I_STR-LOC_TYPE sy-vline 
WA_CRMD_APO_I_STR-ITEM_NUMBER sy-vline 
WA_CRMD_APO_I_STR-SCENARIO sy-vline 
WA_CRMD_APO_I_STR-ATP_RELEVANT sy-vline 
WA_CRMD_APO_I_STR-TMP_OBJ_MODE sy-vline 
WA_CRMD_APO_I_STR-CHECK_PROFILE sy-vline 
WA_CRMD_APO_I_STR-CRM_MSG_NO sy-vline 
WA_CRMD_APO_I_STR-APO_RELEASE sy-vline 
WA_CRMD_APO_I_STR-APO_UPD sy-vline 
WA_CRMD_APO_I_STR-PERSIST_ID sy-vline 
WA_CRMD_APO_I_STR-STATUS_1 sy-vline 
WA_CRMD_APO_I_STR-STATUS_2 sy-vline 
WA_CRMD_APO_I_STR-ATP_CATEGORY sy-vline 
WA_CRMD_APO_I_STR-SUB_LOCATION sy-vline 
WA_CRMD_APO_I_STR-PURCH_ORG sy-vline 
WA_CRMD_APO_I_STR-TPDS_PLANT sy-vline 
WA_CRMD_APO_I_STR-TPDS_LOC_TYPE sy-vline 
WA_CRMD_APO_I_STR-TPDS_FLAG sy-vline 
WA_CRMD_APO_I_STR-CARRIER_SRC sy-vline 
WA_CRMD_APO_I_STR-GEOROUTE_SRC sy-vline 
WA_CRMD_APO_I_STR-CHECKED_AT sy-vline 
WA_CRMD_APO_I_STR-FIRSTS_LOCATION sy-vline 
WA_CRMD_APO_I_STR-FIRSTS_LOC_TYPE sy-vline 
WA_CRMD_APO_I_STR-FACING_LOCATION sy-vline 
WA_CRMD_APO_I_STR-FACING_LOCTYPE sy-vline 
WA_CRMD_APO_I_STR-QUANTITY_FACTOR sy-vline 
WA_CRMD_APO_I_STR-QUANTITY_DIVISOR sy-vline 
WA_CRMD_APO_I_STR-INITIATOR_PROC sy-vline 
WA_CRMD_APO_I_STR-CD_LOCATION sy-vline 
WA_CRMD_APO_I_STR-CD_LOCATION_TYPE sy-vline 
WA_CRMD_APO_I_STR-CONS_LOCATION sy-vline 
WA_CRMD_APO_I_STR-CONS_LOCTYPE sy-vline 
WA_CRMD_APO_I_STR-APO_COUNTER sy-vline      INTO ld_text SEPARATED BY SPACE.

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