ABAP Select data from SAP table CRM_ISU_EIDE_BOLBLKSWTMSG into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRM_ISU_EIDE_BOLBLKSWTMSG 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_EIDE_BOLBLKSWTMSG. 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_EIDE_BOLBLKSWTMSG 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_EIDE_BOLBLKSWTMSG TYPE STANDARD TABLE OF CRM_ISU_EIDE_BOLBLKSWTMSG,
      WA_CRM_ISU_EIDE_BOLBLKSWTMSG TYPE CRM_ISU_EIDE_BOLBLKSWTMSG,
      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_EIDE_BOLBLKSWTMSG> TYPE CRM_ISU_EIDE_BOLBLKSWTMSG.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRM_ISU_EIDE_BOLBLKSWTMSG
*  INTO TABLE @DATA(IT_CRM_ISU_EIDE_BOLBLKSWTMSG2).
*--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_EIDE_BOLBLKSWTMSG INDEX 1 INTO DATA(WA_CRM_ISU_EIDE_BOLBLKSWTMSG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRM_ISU_EIDE_BOLBLKSWTMSG>-WMODE = 1.
<CRM_ISU_EIDE_BOLBLKSWTMSG>-TEMPORARY = 1.
<CRM_ISU_EIDE_BOLBLKSWTMSG>-SWITCHNUM_IMP = 1.
<CRM_ISU_EIDE_BOLBLKSWTMSG>-MSGDATANUM_IMP = 1.
<CRM_ISU_EIDE_BOLBLKSWTMSG>-SWITCHNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRM_ISU_EIDE_BOLBLKSWTMSG-MSGDATANUM, sy-vline,
  WA_CRM_ISU_EIDE_BOLBLKSWTMSG-SUBRC, sy-vline,
  WA_CRM_ISU_EIDE_BOLBLKSWTMSG-T_ERROR, sy-vline,
  WA_CRM_ISU_EIDE_BOLBLKSWTMSG-ISU_COM_SWITCH_MSG, sy-vline,
  WA_CRM_ISU_EIDE_BOLBLKSWTMSG-MSGDATANUM, sy-vline,
  WA_CRM_ISU_EIDE_BOLBLKSWTMSG-POD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRM_ISU_EIDE_BOLBLKSWTMSG 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_EIDE_BOLBLKSWTMSG 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_EIDE_BOLBLKSWTMSG INTO WA_CRM_ISU_EIDE_BOLBLKSWTMSG.


*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 PARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRM_ISU_EIDE_BOLBLKSWTMSG-PARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRM_ISU_EIDE_BOLBLKSWTMSG-PARTNER.
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_EIDE_BOLBLKSWTMSG_STR, 
WMODE TYPE STRING,
TEMPORARY TYPE STRING,
SWITCHNUM_IMP TYPE STRING,
MSGDATANUM_IMP TYPE STRING,
SWITCHNUM TYPE STRING,
MSGDATANUM TYPE STRING,
SUBRC TYPE STRING,
T_ERROR TYPE STRING,
ISU_COM_SWITCH_MSG TYPE STRING,
MSGDATANUM TYPE STRING,
POD TYPE STRING,
SWITCHNUM TYPE STRING,
OWNER TYPE STRING,
OWNER_TXT TYPE STRING,
PARTNER TYPE STRING,
SERVICE_PROV_OLD TYPE STRING,
SERVICE_PROV_OLDTXT TYPE STRING,
SERVICE_PROV_NEW TYPE STRING,
SERVICE_PROV_NEWTXT TYPE STRING,
DISTRIBUTOR TYPE STRING,
DISTRIBUTORTXT TYPE STRING,
ENROLLDOC TYPE STRING,
DROPDOC TYPE STRING,
EXT_REFERENCE TYPE STRING,
MSGDATE TYPE STRING,
MSGTIME TYPE STRING,
METERNR TYPE STRING,
NAME_L TYPE STRING,
NAME_F TYPE STRING,
STREET TYPE STRING,
HOUSENR TYPE STRING,
HOUSENREXT TYPE STRING,
POSTCODE TYPE STRING,
CITY TYPE STRING,
SETTLRESP TYPE STRING,
PROFILE TYPE STRING,
PROGYEARCONS TYPE STRING,
MAXDEMAND TYPE STRING,
MOVEINDATE TYPE STRING,
MOVEOUTDATE TYPE STRING,
EXT_UI TYPE STRING,
STREET_BU TYPE STRING,
HOUSENR_BU TYPE STRING,
HOUSENREXT_BU TYPE STRING,
POSTCODE_BU TYPE STRING,
CITY_BU TYPE STRING,
SWITCHTYPE TYPE STRING,
SWTVIEW TYPE STRING,
TRANSREASON TYPE STRING,
METMETHOD TYPE STRING,
CATEGORY TYPE STRING,
SOURCE TYPE STRING,
SPARTYP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRM_ISU_EIDE_BOLBLKSWTMSG_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_EIDE_BOLBLKSWTMSG_STR-WMODE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-TEMPORARY sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SWITCHNUM_IMP sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MSGDATANUM_IMP sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SWITCHNUM sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MSGDATANUM sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SUBRC sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-T_ERROR sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-ISU_COM_SWITCH_MSG sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MSGDATANUM sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-POD sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SWITCHNUM sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-OWNER sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-OWNER_TXT sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-PARTNER sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SERVICE_PROV_OLD sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SERVICE_PROV_OLDTXT sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SERVICE_PROV_NEW sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SERVICE_PROV_NEWTXT sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-DISTRIBUTOR sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-DISTRIBUTORTXT sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-ENROLLDOC sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-DROPDOC sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-EXT_REFERENCE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MSGDATE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MSGTIME sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-METERNR sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-NAME_L sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-NAME_F sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-STREET sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-HOUSENR sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-HOUSENREXT sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-POSTCODE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-CITY sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SETTLRESP sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-PROFILE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-PROGYEARCONS sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MAXDEMAND sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MOVEINDATE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-MOVEOUTDATE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-EXT_UI sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-STREET_BU sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-HOUSENR_BU sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-HOUSENREXT_BU sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-POSTCODE_BU sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-CITY_BU sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SWITCHTYPE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SWTVIEW sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-TRANSREASON sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-METMETHOD sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-CATEGORY sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SOURCE sy-vline 
WA_CRM_ISU_EIDE_BOLBLKSWTMSG_STR-SPARTYP sy-vline      INTO ld_text SEPARATED BY SPACE.

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