ABAP Select data from SAP table CRM_ISU_DISCONNECTION_CREATE 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 CRM_ISU_DISCONNECTION_CREATE 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 CRM_ISU_DISCONNECTION_CREATE. 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 CRM_ISU_DISCONNECTION_CREATE 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_CRM_ISU_DISCONNECTION_CREATE TYPE STANDARD TABLE OF CRM_ISU_DISCONNECTION_CREATE,
      WA_CRM_ISU_DISCONNECTION_CREATE TYPE CRM_ISU_DISCONNECTION_CREATE,
      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: <CRM_ISU_DISCONNECTION_CREATE> TYPE CRM_ISU_DISCONNECTION_CREATE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRM_ISU_DISCONNECTION_CREATE
*  INTO TABLE @DATA(IT_CRM_ISU_DISCONNECTION_CREATE2).
*--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_CRM_ISU_DISCONNECTION_CREATE INDEX 1 INTO DATA(WA_CRM_ISU_DISCONNECTION_CREATE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRM_ISU_DISCONNECTION_CREATE>-DISCACTTYP = 1.
<CRM_ISU_DISCONNECTION_CREATE>-BP = 1.
<CRM_ISU_DISCONNECTION_CREATE>-BUAG = 1.
<CRM_ISU_DISCONNECTION_CREATE>-CONTRACT = 1.
<CRM_ISU_DISCONNECTION_CREATE>-INSTLN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRM_ISU_DISCONNECTION_CREATE-PREMISE, sy-vline,
  WA_CRM_ISU_DISCONNECTION_CREATE-POD, sy-vline,
  WA_CRM_ISU_DISCONNECTION_CREATE-DEVICE, sy-vline,
  WA_CRM_ISU_DISCONNECTION_CREATE-CONNOBJ, sy-vline,
  WA_CRM_ISU_DISCONNECTION_CREATE-DISCREASON, sy-vline,
  WA_CRM_ISU_DISCONNECTION_CREATE-OBJECTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRM_ISU_DISCONNECTION_CREATE 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_CRM_ISU_DISCONNECTION_CREATE 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_CRM_ISU_DISCONNECTION_CREATE INTO WA_CRM_ISU_DISCONNECTION_CREATE.


*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 BP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRM_ISU_DISCONNECTION_CREATE-BP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_ISU_DISCONNECTION_CREATE-BP.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit TPLNR, internal->external for field CONNOBJ
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_CRM_ISU_DISCONNECTION_CREATE-CONNOBJ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_ISU_DISCONNECTION_CREATE-CONNOBJ.
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_CRM_ISU_DISCONNECTION_CREATE_STR, 
DISCACTTYP TYPE STRING,
BP TYPE STRING,
BUAG TYPE STRING,
CONTRACT TYPE STRING,
INSTLN TYPE STRING,
PREMISE TYPE STRING,
POD TYPE STRING,
DEVICE TYPE STRING,
CONNOBJ TYPE STRING,
DISCREASON TYPE STRING,
OBJECTTYPE TYPE STRING,
OBJECTKEY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRM_ISU_DISCONNECTION_CREATE_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_CRM_ISU_DISCONNECTION_CREATE_STR-DISCACTTYP sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-BP sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-BUAG sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-CONTRACT sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-INSTLN sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-PREMISE sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-POD sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-DEVICE sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-CONNOBJ sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-DISCREASON sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-OBJECTTYPE sy-vline 
WA_CRM_ISU_DISCONNECTION_CREATE_STR-OBJECTKEY sy-vline      INTO ld_text SEPARATED BY SPACE.

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