How to insert characters into a file using Labview

I have collected acoustic data that I am turning into wav files. After the collection, I now know the file size and need to insert the wav file header on top of this file. Can anyone tell me how to concatenate two files, or insert the wav header (string) data into the other file? My current method is very inefficient. The collected data file can become extremely large, so I am trying to avoid reading this file. I would rather poke data into it without overwriting any existing data. Thanks in advance.

hello
See attached vi. It is a modification of NI warite wav vi. It only writes header. So Write a default header, append your data and write heder again using the number of bytes of audio.
Hope this helps.
"Qod natura non dat, Salmantica non praestat"
Attachments:
Cabecera_Wav.vi ‏77 KB

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fieldname     TYPE kkblo_fieldname,           "Field name
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fieldname_dep TYPE kkblo_fieldname,           "Field name
tabname_dep   TYPE kkblo_tabname,             "Table name
index         TYPE sy-index,                  "Index
END OF ty_nosum.
TYPES: t_nosum TYPE TABLE OF ty_nosum INITIAL SIZE 0 WITH NON-UNIQUE DEFAULT KEY.
TYPES: BEGIN OF ty_dep_field,
s_dep_fieldcat TYPE kkblo_fieldcat,            "Field cat
t_ref_fieldcat TYPE kkblo_t_fieldcat,          "Field cat
END OF ty_dep_field.
TYPES: BEGIN OF ty_ref_field,
s_ref_fieldcat TYPE kkblo_fieldcat,           "Field cat
s_dep_fieldcat TYPE kkblo_fieldcat,           "Field cat
END OF ty_ref_field.
TYPES: t_dep_field TYPE ty_dep_field OCCURS 0.        "
TYPES: t_ref_field TYPE ty_ref_field OCCURS 0.
TYPES: BEGIN OF ty_memory,
object(20) TYPE c,                        "Object
memcount(4) TYPE c,                        "count
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fieldname TYPE kkblo_fieldname,          "Field name
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pagno     TYPE sypagno,                   "Page num
linno     TYPE sy-linno,                  "Current Line in List
colno     TYPE sy-colno,                  "Current List Column
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t_type_header_info TYPE SORTED TABLE OF ty_type_header_info
WITH UNIQUE KEY tabname fieldname.
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tabname   TYPE kkblo_tabname,            "Table name
tabindex TYPE syindex,                  "Index
field     TYPE char80,                   "Field name
pagno     TYPE sypagno,                  "Page num
linno     TYPE sy-linno,                 "Current Line in List
colno     TYPE sy-colno,                 "Current List Column
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t_type_row_info TYPE SORTED TABLE OF ty_type_row_info
WITH UNIQUE KEY tabname tabindex.
TYPES: BEGIN OF ty_type_sel_header,
tabname   TYPE kkblo_tabname,           "table name
fieldname TYPE kkblo_fieldname,         "field name
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t_type_sel_header TYPE SORTED TABLE OF ty_type_sel_header
WITH UNIQUE KEY tabname fieldname.
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tabname   TYPE kkblo_tabname,
tabindex TYPE syindex,
END   OF ty_type_sel_row,
t_type_sel_row TYPE SORTED TABLE OF ty_type_sel_row
WITH UNIQUE KEY tabname tabindex.
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tabname   TYPE kkblo_tabname,
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t_header_info      TYPE t_type_header_info,
t_selected_headers TYPE t_type_sel_header,
t_selected_rows    TYPE t_type_sel_row,
s_current_cell     TYPE ty_type_sel_cell,
set_headers        TYPE sap_bool,
set_rows           TYPE sap_bool,
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r_print_state TYPE REF TO if_alv_print_parameter_proxy, "Y6DK075821
suppress_empty_data TYPE abap_bool,
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i_callback_program       TYPE sy-repid,
i_callback_user_command TYPE kkblo_formname,
i_callback_top_of_page   TYPE kkblo_formname,
i_callback_top_of_list   TYPE kkblo_formname,
i_callback_end_of_page   TYPE kkblo_formname,
i_callback_end_of_list   TYPE kkblo_formname,
i_callback_pf_status_set TYPE kkblo_formname,
i_callback_fieldcat_save TYPE kkblo_formname,
i_callback_layout_save   TYPE kkblo_formname,
i_tabname                TYPE kkblo_tabname,
i_tabname_slave          TYPE kkblo_tabname,
is_keyinfo               TYPE kkblo_keyinfo,
is_layout                TYPE kkblo_layout,
it_fieldcat              TYPE kkblo_t_fieldcat,
i_fctype(1)              TYPE c,
it_excluding             TYPE kkblo_t_extab,
it_special_groups        TYPE kkblo_t_sp_group,
it_sort                  TYPE kkblo_t_sortinfo,
it_except_qinfo          TYPE kkblo_t_qinfo,
is_sel_hide              TYPE kkblo_sel_hide,
t_columns                TYPE kkblo_t_columns,
t_filter                 TYPE kkblo_t_filter,
s_lprint                 TYPE kkblo_lprint,
print_line_break         TYPE char1,
t_isetab                 TYPE kkblo_seldis,
t_fccls                  TYPE t_fccls,
t_sfinfo                 TYPE kkblo_t_sfinfo,
t_ref_field              TYPE t_ref_field,
t_dep_field              TYPE t_dep_field,
flg_default_status(1)    TYPE c,
flg_selections           TYPE char1,
flg_allow_no_selection   TYPE char1,
flg_input                TYPE char1,
flg_called               TYPE char1,
flg_popup                TYPE char1,
flg_endlist              TYPE char1,
listtype                 TYPE char1,
actcols                  TYPE i,
is_list                  TYPE char1,
END OF ty_stack.
TYPES: t_stack TYPE ty_stack OCCURS 0.
TYPES: BEGIN OF ty_stack2,
button_col1(20)                TYPE c,
button_col2(20)                TYPE c,
button_col3(20)                TYPE c,
button_col4(20)                TYPE c,
button_col5(20)                TYPE c,
s_header                       TYPE kkblo_header,
t_sfinfo_slave                 TYPE kkblo_t_sfinfo,
t_suminfo                      TYPE kkblo_t_sfinfo,
t_sfsave                       TYPE kkblo_t_sfinfo,
t_nosum                        TYPE t_nosum,
window_title                   TYPE rsmpe-tittext, " Item_selection
flg_scroll_to_line(1)          TYPE c, " Item_selection
flg_top_of_page(1)             TYPE c,
flg_subtot(1)                  TYPE c,
flg_output_in_progress(1)      TYPE c,
flg_grouplevels(1)             TYPE c,
flg_groupedit(1)               TYPE c,
flg_calculate_totals(1)        TYPE c,
sumlevel                       TYPE sy-tabix,
memory_stack1                  TYPE ty_memory,
memory_stack2                  TYPE ty_memory,
memory_outtab                  TYPE ty_memory,
t_colmark                      TYPE kkblo_t_colmark,
t_rowmark                      TYPE kkblo_t_rowmark,
it_event_exit                  TYPE kkblo_t_event_exit,
t_groups                       TYPE kkblo_t_grouplevels,
t_filter_groups                TYPE kkblo_t_grouplevels,
s_subtot_options               TYPE kkblo_subtot_options,
flg_append_mode(1)             TYPE c,
is_reprep_id                   TYPE kkblo_reprep_id,
i_callback_before_line_output TYPE kkblo_formname,
i_callback_after_line_output   TYPE kkblo_formname,
i_callback_foreign_top_of_page TYPE kkblo_formname,
i_callback_foreign_end_of_page TYPE kkblo_formname,
i_callback_list_modify         TYPE kkblo_formname,
i_callback_top_of_coverpage    TYPE kkblo_formname,
i_callback_end_of_coverpage    TYPE kkblo_formname,
i_callback_grouplevel_change   TYPE kkblo_formname,
i_callback_item_data_expand    TYPE kkblo_formname,
i_callback_header_transport    TYPE kkblo_formname,
i_callback_reprep_sel_modify   TYPE kkblo_formname,
i_callback_subtotal_text       TYPE kkblo_formname,
END OF ty_stack2.
TYPES: t_stack2 TYPE TABLE OF ty_stack2 INITIAL SIZE 0.
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simple(1)    TYPE c VALUE 'S',
hier_sequ(1) TYPE c VALUE 'H',
matrix(1)    TYPE c VALUE 'M',
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DATA:   gv_callback_program1      TYPE sy-repid,
gv_callback_user_command1 TYPE kkblo_formname,
gv_callback_top_of_page1 TYPE kkblo_formname,
gv_callback_top_of_list1 TYPE kkblo_formname,
gv_callback_end_of_page1 TYPE kkblo_formname,
gv_callback_end_of_list1   TYPE kkblo_formname,
gv_callback_pf_status_set1 TYPE kkblo_formname,
gv_callback_layout_save1    TYPE kkblo_formname,
gv_callback_fieldcat_save1 TYPE kkblo_formname,
gv_callback_grouplevel_change1 TYPE kkblo_formname,
gv_callback_before_line_otput1 TYPE kkblo_formname,
gv_callback_after_line_otput1 TYPE kkblo_formname,
gv_callback_foreign_top_of_pg1 TYPE kkblo_formname,
gv_callback_foreign_end_of_pg1 TYPE kkblo_formname,
gv_callback_list_modify1          TYPE kkblo_formname,
gv_callback_top_of_coverpge1     TYPE kkblo_formname,
gv_callback_end_of_coverpge1     TYPE kkblo_formname,
gv_callback_item_data_expand1     TYPE kkblo_formname,
gv_callback_header_transport1     TYPE kkblo_formname,
gv_callback_reprep_sel_modify1    TYPE kkblo_formname,
gv_callback_subtotal_text1       TYPE kkblo_formname,
gv_layout1   TYPE kkblo_layout,
gv_fieldcat1 TYPE kkblo_t_fieldcat,
gv_fctype1 TYPE c,
gv_event_exit1 TYPE kkblo_t_event_exit,
gv_excluding1   TYPE kkblo_t_extab,
gv_special_groups1 TYPE kkblo_t_sp_group,
gv_sort1 TYPE kkblo_t_sortinfo,
gv_filter1 TYPE kkblo_t_filter,
gv_except_qinfo1 TYPE slis_t_qinfo_alv,
gv_sel_hide1 TYPE slis_sel_hide_alv,
gv_reprep_id1   TYPE slis_reprep_id,
gv_screen_start_column1 TYPE i,
gv_salv_adapter1   TYPE REF TO if_salv_adapter,
gv_suppress_empty_data1 TYPE sap_bool.
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*"     REFERENCE(I_TABNAME) TYPE SLIS_TABNAME OPTIONAL
*"     REFERENCE(I_FCTYPE) DEFAULT 'R'
*"     REFERENCE(IT_EXCEPT_QINFO) TYPE SLIS_T_QINFO_ALV OPTIONAL
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*"     REFERENCE(I_SCREEN_START_COLUMN) DEFAULT 0
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*"     REFERENCE(IR_SALV_ADAPTER) TYPE REF TO IF_SALV_ADAPTER OPTIONAL
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*"     REFERENCE(I_FILE) TYPE STRING OPTIONAL
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*"     REFERENCE(IS_LAYOUT) TYPE SLIS_LAYOUT_ALV OPTIONAL
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*"     REFERENCE(IT_SPECIAL_GROUPS) TYPE SLIS_T_SP_GROUP_ALV OPTIONAL
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*"     REFERENCE(IS_LIST_SCROLL) TYPE SLIS_LIST_SCROLL OPTIONAL
*"     REFERENCE(IS_PRINT) TYPE SLIS_PRINT_ALV OPTIONAL
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DATA: gv_buffer_active TYPE char01,
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DATA: gv_version TYPE string.
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If all the images have the same requirements then you can select them all and run the export command.

How to insert data from *.dmp file to oracle 11g using Oracle SQL Develope

hi
i backup my database using PL/SQL developer and made *.dmp file
how to insert data from *.dmp file to oracle 11g using Oracle SQL Developer 2.1.1.64
and how to make *.dmp file from sql*plus ?
thanks in advance

Pl/Sql developer has a config window, there you choose the exec to do the import/export.
Find it and his home version, it may be exp or expdp, the home version is the version of the client where the exp executable is.
Then use the same version of imp or impdp to execute the import, you do not need to use Oracle SQL Developer 2.1.1.64. If you want to use it, you must have the same version in the oracle home that exp/imp of sql developer use.

How can I split a pdf file into smaller files using Acrobat XI

How can I split a pdf file into smaller files using Acrobat XI?

Hi laforcej
Open the PDF In Acrobat ...
Go to Tools -> Pages -> Extract
Now Select the Page Number you Want to Extract and Save them

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Dear friends,
I am developing a web application using JSF framework. In that i using entity class. In ManagedBean class i want to insert the data using entitymanager persist method. But it will not working. And don't show any errors. give me the suitable methode to insert data into the database using EntityManager.Persist() method.

Yes, Panky_p,
i have attached the code for which i using in given below. In that am getting the data from database but only the problem is not inserting into the database.Give me the possible solution for that.Thank you
public String ValidUser(String username, String password) {
List<User> us = new ArrayList();
EntityManager em = getEntityManager();
try {
us = em.createNamedQuery("User.findAll").getResultList();
if (us != null) {
Iterator i = us.iterator();
while (i.hasNext()) {
User use = (User) i.next();
if (username.equals(use.getHmsusrloginName()) && password.equals(use.getHmsusrpassWord())) {
utx.begin();
Logindetail lo = new Logindetail();
lo.setHmslogusrId(use.getHmsusrusrId());
lo.setHmslogloginName(use.getHmsusrloginName());
lo.setHmslogtimeIn(getCurrentDate());
em.persist(lo);
utx.commit();
return "success";
return "failure";
} else {
return "failure";
} catch (Exception ex) {
System.out.println("Exception in GetConnection " + ex);
return "failure";
}

How to insert text in existing file.?????

how to insert text in existing file.?????
my file contains simple text with numbers of lines having more then 10 MB size and it might be increase up to 100MB.
i required to seek to spec. position and insert chunk of characters to file without overwriting existing one.
I tried out with RandomAccessFile class Also.
Pl. Suggest me way to insert String in existing file.
Thanks ,
Timir

how to insert text in existing file.?????You can't "insert" text into an existing file. You can
overwrite portions of an existing file or extend one by
writing past the current end of file.
If you want to insert text into a file you have to write
out a new file.

How to insert characters into a file using Labview

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