ABAP Select data from SAP table IGHOPRODNNTWK into internal table

Get Example source ABAP code based on a different SAP table
  

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IGHOPRODNNTWK
*  INTO TABLE @DATA(IT_IGHOPRODNNTWK2).
*--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_IGHOPRODNNTWK INDEX 1 INTO DATA(WA_IGHOPRODNNTWK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IGHOPRODNNTWK ASSIGNING <IGHOPRODNNTWK>.
*To update a field value using a field symbol simply change the value via the field symbol pointer
<IGHOPRODNNTWK>-MANDT = 1.
<IGHOPRODNNTWK>-PRODUCTIONNETWORKID = 1.
<IGHOPRODNNTWK>-NETWORKMEDIUM = 1.
<IGHOPRODNNTWK>-ALLOCATIONFREQUENCYCODE = 1.
<IGHOPRODNNTWK>-NETWORKINTERNALID = 1.
ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IGHOPRODNNTWK-NETWORKOBJECTTYPE, sy-vline,
WA_IGHOPRODNNTWK-SECONDARYGEOGRLLOCATION, sy-vline,
WA_IGHOPRODNNTWK-SECONDARYGEOGRLLOCATIONNAME, sy-vline,
WA_IGHOPRODNNTWK-NETWORKMEDIUMDESCRIPTION, sy-vline,
WA_IGHOPRODNNTWK-FREQUENCYDESCRIPTION, sy-vline,
WA_IGHOPRODNNTWK-NETWORKTOBEALLOCATED, sy-vline.
ENDLOOP. *Add any further fields from structure WA_IGHOPRODNNTWK 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_IGHOPRODNNTWK 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_IGHOPRODNNTWK INTO WA_IGHOPRODNNTWK. *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 TPLNR, internal->external for field PRODUCTIONNETWORKID CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT' EXPORTING input = WA_IGHOPRODNNTWK-PRODUCTIONNETWORKID IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_IGHOPRODNNTWK-PRODUCTIONNETWORKID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field ASSIGNEDTOPRODNNETWORK CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT' EXPORTING input = WA_IGHOPRODNNTWK-ASSIGNEDTOPRODNNETWORK IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_IGHOPRODNNTWK-ASSIGNEDTOPRODNNETWORK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ADDRESSNUMBER CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT' EXPORTING input = WA_IGHOPRODNNTWK-ADDRESSNUMBER IMPORTING output = ld_input.
WRITE:/ 'Org Value:', WA_IGHOPRODNNTWK-ADDRESSNUMBER.
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_IGHOPRODNNTWK_STR,
MANDT TYPE STRING,
PRODUCTIONNETWORKID TYPE STRING,
NETWORKMEDIUM TYPE STRING,
ALLOCATIONFREQUENCYCODE TYPE STRING,
NETWORKINTERNALID TYPE STRING,
NETWORKOBJECTTYPE TYPE STRING,
SECONDARYGEOGRLLOCATION TYPE STRING,
SECONDARYGEOGRLLOCATIONNAME TYPE STRING,
NETWORKMEDIUMDESCRIPTION TYPE STRING,
FREQUENCYDESCRIPTION TYPE STRING,
NETWORKTOBEALLOCATED TYPE STRING,
ASSIGNEDTOPRODNNETWORK TYPE STRING,
ASSIGNEDTONETWORKINTERNALID TYPE STRING,
ALTERNATEKEY TYPE STRING,
NTWKOBJALTERNATENAME TYPE STRING,
GHONTWKOBJALTERNATENAME TYPE STRING,
MAINTOBJECTLOCACCTASSGMTNMBR TYPE STRING,
ADDRESSNUMBER TYPE STRING,
MAINTENANCEPLANT TYPE STRING,
MAINTENANCEPLANNERGROUP TYPE STRING,
MAINTENANCEPLANNINGPLANT TYPE STRING,
NETWORKLASTCHANGEDDATETIME TYPE STRING,
ALTERNATELABELINGSYSTEM TYPE STRING,END OF T_EKKO_STR. DATA: WA_IGHOPRODNNTWK_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_IGHOPRODNNTWK_STR-MANDT sy-vline
WA_IGHOPRODNNTWK_STR-PRODUCTIONNETWORKID sy-vline
WA_IGHOPRODNNTWK_STR-NETWORKMEDIUM sy-vline
WA_IGHOPRODNNTWK_STR-ALLOCATIONFREQUENCYCODE sy-vline
WA_IGHOPRODNNTWK_STR-NETWORKINTERNALID sy-vline
WA_IGHOPRODNNTWK_STR-NETWORKOBJECTTYPE sy-vline
WA_IGHOPRODNNTWK_STR-SECONDARYGEOGRLLOCATION sy-vline
WA_IGHOPRODNNTWK_STR-SECONDARYGEOGRLLOCATIONNAME sy-vline
WA_IGHOPRODNNTWK_STR-NETWORKMEDIUMDESCRIPTION sy-vline
WA_IGHOPRODNNTWK_STR-FREQUENCYDESCRIPTION sy-vline
WA_IGHOPRODNNTWK_STR-NETWORKTOBEALLOCATED sy-vline
WA_IGHOPRODNNTWK_STR-ASSIGNEDTOPRODNNETWORK sy-vline
WA_IGHOPRODNNTWK_STR-ASSIGNEDTONETWORKINTERNALID sy-vline
WA_IGHOPRODNNTWK_STR-ALTERNATEKEY sy-vline
WA_IGHOPRODNNTWK_STR-NTWKOBJALTERNATENAME sy-vline
WA_IGHOPRODNNTWK_STR-GHONTWKOBJALTERNATENAME sy-vline
WA_IGHOPRODNNTWK_STR-MAINTOBJECTLOCACCTASSGMTNMBR sy-vline
WA_IGHOPRODNNTWK_STR-ADDRESSNUMBER sy-vline
WA_IGHOPRODNNTWK_STR-MAINTENANCEPLANT sy-vline
WA_IGHOPRODNNTWK_STR-MAINTENANCEPLANNERGROUP sy-vline
WA_IGHOPRODNNTWK_STR-MAINTENANCEPLANNINGPLANT sy-vline
WA_IGHOPRODNNTWK_STR-NETWORKLASTCHANGEDDATETIME sy-vline
WA_IGHOPRODNNTWK_STR-ALTERNATELABELINGSYSTEM sy-vline INTO ld_text SEPARATED BY SPACE. *Add any further fields from structure WA_EKKO_STR you want to CONCATENATE... ENDLOOP. ENDFORM.