ABAP Select data from SAP table CRMT_ACTIVE_SWITCH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMT_ACTIVE_SWITCH
*  INTO TABLE @DATA(IT_CRMT_ACTIVE_SWITCH2).
*--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_CRMT_ACTIVE_SWITCH INDEX 1 INTO DATA(WA_CRMT_ACTIVE_SWITCH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMT_ACTIVE_SWITCH>-REF_GUID = 1.
<CRMT_ACTIVE_SWITCH>-REF_KIND = 1.
<CRMT_ACTIVE_SWITCH>-REF_HANDLE = 1.
<CRMT_ACTIVE_SWITCH>-PRICING = 1.
<CRMT_ACTIVE_SWITCH>-PRICING_COMPLETE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMT_ACTIVE_SWITCH-CREDIT_CHECK, sy-vline,
  WA_CRMT_ACTIVE_SWITCH-ATP_CHECK, sy-vline,
  WA_CRMT_ACTIVE_SWITCH-PARTNER_DETERM, sy-vline,
  WA_CRMT_ACTIVE_SWITCH-SCHED_PROCESS, sy-vline,
  WA_CRMT_ACTIVE_SWITCH-CREATE_BILLPLAN, sy-vline,
  WA_CRMT_ACTIVE_SWITCH-CREATE_BILL_REQ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMT_ACTIVE_SWITCH 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_CRMT_ACTIVE_SWITCH 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_CRMT_ACTIVE_SWITCH INTO WA_CRMT_ACTIVE_SWITCH.


*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_CRMT_ACTIVE_SWITCH_STR, 
REF_GUID TYPE STRING,
REF_KIND TYPE STRING,
REF_HANDLE TYPE STRING,
PRICING TYPE STRING,
PRICING_COMPLETE TYPE STRING,
CREDIT_CHECK TYPE STRING,
ATP_CHECK TYPE STRING,
PARTNER_DETERM TYPE STRING,
SCHED_PROCESS TYPE STRING,
CREATE_BILLPLAN TYPE STRING,
CREATE_BILL_REQ TYPE STRING,
FIELDCHECK TYPE STRING,
CREATE_OPTION TYPE STRING,
FIND_CONTRACTS TYPE STRING,
SET_ORDER_EDIT_INFO TYPE STRING,
CHECK_IBASE_COMP TYPE STRING,
COND_CHECK TYPE STRING,
INCOMP_CHECK TYPE STRING,
DELETE_ITEM TYPE STRING,
FREE_GOODS TYPE STRING,
FIND_QUOTATION TYPE STRING,
EXPL_STRUCT_PROD TYPE STRING,
CAMPAIGN_DETERM TYPE STRING,
LEASE_CLASS TYPE STRING,
CONF_UPDATE TYPE STRING,
DATA_FROM_UI TYPE STRING,
WARRANTY_CHECK TYPE STRING,
DLVGRP_CHECK TYPE STRING,
PRODUCT_DETERM TYPE STRING,
LOCK_CONTRACT TYPE STRING,
CSL_ACTIVE TYPE STRING,
ITEM_DELETE_CHECK TYPE STRING,
STATUS_PROCESS_LOOKUP TYPE STRING,
LISTING TYPE STRING,
REDETERMINE_COND TYPE STRING,
UBB_PREBILLING TYPE STRING,
AUTH_PAYCARD TYPE STRING,
CPE_SUPPRESS_ASSEMBLY TYPE STRING,
CPE_DO_FORMULA_ANALYSIS TYPE STRING,
FIND_AGREEMENT TYPE STRING,
CALC_FIMA TYPE STRING,
CREDIT_RATING TYPE STRING,
SC_VALIDATION TYPE STRING,
PS_ELIGIBILITY TYPE STRING,
PS_ASSESSMENT TYPE STRING,
ATP_PROCESS_RESULT TYPE STRING,
DARK_CONFIGURATION TYPE STRING,
SRV_DURATION_PROPOSAL TYPE STRING,
PS_ENTITLEMENT_DET TYPE STRING,
REDET_PRICING_TYPE TYPE STRING,
PS_ENTITLEMENT_ADJ TYPE STRING,
PS_GLOBAL_ASSESSMENT TYPE STRING,
PS_DEC_UNIT_DET TYPE STRING,
PS_DBA_ACT TYPE STRING,
WEC_PSP_FIELDCHECK TYPE STRING,
PRODUCT_PROPOSAL TYPE STRING,
PS_ELIG_CPE TYPE STRING,
ACTION_DETERMINATION TYPE STRING,
UPDATE_PLANNED_COSTS TYPE STRING,
OUTPUT_DETERMINATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMT_ACTIVE_SWITCH_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_CRMT_ACTIVE_SWITCH_STR-REF_GUID sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-REF_KIND sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-REF_HANDLE sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PRICING sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PRICING_COMPLETE sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CREDIT_CHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-ATP_CHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PARTNER_DETERM sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-SCHED_PROCESS sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CREATE_BILLPLAN sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CREATE_BILL_REQ sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-FIELDCHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CREATE_OPTION sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-FIND_CONTRACTS sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-SET_ORDER_EDIT_INFO sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CHECK_IBASE_COMP sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-COND_CHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-INCOMP_CHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-DELETE_ITEM sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-FREE_GOODS sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-FIND_QUOTATION sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-EXPL_STRUCT_PROD sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CAMPAIGN_DETERM sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-LEASE_CLASS sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CONF_UPDATE sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-DATA_FROM_UI sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-WARRANTY_CHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-DLVGRP_CHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PRODUCT_DETERM sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-LOCK_CONTRACT sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CSL_ACTIVE sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-ITEM_DELETE_CHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-STATUS_PROCESS_LOOKUP sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-LISTING sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-REDETERMINE_COND sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-UBB_PREBILLING sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-AUTH_PAYCARD sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CPE_SUPPRESS_ASSEMBLY sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CPE_DO_FORMULA_ANALYSIS sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-FIND_AGREEMENT sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CALC_FIMA sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-CREDIT_RATING sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-SC_VALIDATION sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_ELIGIBILITY sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_ASSESSMENT sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-ATP_PROCESS_RESULT sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-DARK_CONFIGURATION sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-SRV_DURATION_PROPOSAL sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_ENTITLEMENT_DET sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-REDET_PRICING_TYPE sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_ENTITLEMENT_ADJ sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_GLOBAL_ASSESSMENT sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_DEC_UNIT_DET sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_DBA_ACT sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-WEC_PSP_FIELDCHECK sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PRODUCT_PROPOSAL sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-PS_ELIG_CPE sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-ACTION_DETERMINATION sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-UPDATE_PLANNED_COSTS sy-vline 
WA_CRMT_ACTIVE_SWITCH_STR-OUTPUT_DETERMINATION sy-vline      INTO ld_text SEPARATED BY SPACE.

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