Array of blob

I have to do a bulk files insert in vb.net to a oracle db table. I've my bytes array and I would to pass that to a stored procedure.
So in my stored I've declared:
TYPE blobarray IS TABLE OF BLOB
INDEX BY BINARY_INTEGER;
PROCEDURE prc_set_files (
p_files blobarray,
p_out OUT INTEGER,
p_the_cur OUT cur
Then, in my vb.net function, I've mapped my bytes array as a parameter like this:
Dim filesArray(2)() As Byte
commandParameters(i).OracleDbType = OracleDbType.Blob
commandParameters(i).CollectionType = OracleCollectionType.PLSQLAssociativeArray
commandParameters(i).Value = filesArray
But doesn't work (no exception, only doesn't write). If I don't pass the vb array, it works.
Could anyone help me?
Thanks

Hi,
It is currently a limitation of the OCI layer that only scalar types can be used for associative arrays. As such, blobs, clobs, timestamps, intervals, and I suppose xmltypes, cannot be used.
I'm a little surprised you're not getting an error or exception. I'd rather expect an ora-600 to occur, based on the enhancement request that was filed for support to be added for non-scalar types.
cheers,
Greg

Similar Messages

Associative Array and Blob

I’m currently working on a system that allows the users to upload an Excel spreadsheet (.xls) in the system. The upload page is a PL/SQL cartridge. Then I’ve written a Java servlet (using Oracle Clean Content) to convert the XLS into a CSV and store it back in the database. (it is stored in the “uploaded_files” table as a blob). I’m trying to create another procedure to read the contents of the blob and display a preview of the data on the screen (using an html table (will be done using cartridge)). After the preview, the user can choose to submit the data into the database into the “detail_records” table or simply discard everything.
I've been trying to use an associative array to grab all the data from the blob but I’m getting confused about how to implement it in my situation.
Can someone provide any examples of this nature?
Any help is greatly appreciated.

I decided to create a "record" type with all the columns from my excel spreadsheet. Then I will create a table type of records
I am doing something like this:
declare
type s_record is record
                        (l_name varchar2(100),
                         f_code varchar2(4) ,
                         l_code varchar2(6),
                         d_date varchar2(5),
                         d_type varchar2(5),
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type s_data_tab is table of s_record index by binary_integer;
v_s_data s_data_tab;
v_indx binary_integer :=0;
begin
end; I am getting confused about parsing an entire row of values separated by commas into a row in the temporary table created above.
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External Procedure Call: Temporary Blob Array out.

Hello,
I am having difficulty getting out an array of blob from the external procedure call interface. I am trying to create an array of blob initialized with temporary blobs. I was successfully able to create single blob parameter out but no success with the array type.
I am including the code for PLSQL wrapper, test code, and the main C code.
I appreciate your help.
The error message of the test run:
0
10
DECLARE
ERROR at line 1:
ORA-22275: invalid LOB locator specified
ORA-06512: at "SYS.DBMS_LOB", line 554
ORA-06512: at line 7
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cintarray IN OUT VDC_BLOB_ARRAY ) IS
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PARAMETERS (
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sword status;
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status = OCIExtProcGetEnv( (OCIExtProcContext *)ctx, (OCIEnv **)&envhp,
(OCISvcCtx **)&svchp, (OCIError **)&errhp );
for (i=0; i < 10; i++)
status=OCIDescriptorAlloc( (dvoid *)envhp, (dvoid **) &lobp,
(ub4)OCI_DTYPE_LOB, (size_t)0, (dvoid**)0);
status=OCILobCreateTemporary((dvoid *)svchp,
(dvoid *)envhp,
lobp[i], (ub2)0, SQLCS_IMPLICIT,
OCI_TEMP_BLOB, OCI_ATTR_CACHE,
OCI_DURATION_SESSION);
status = OCICollAppend( (OCIEnv *)envhp,(OCIError *)errhp,
(CONST dvoid*) lobp[i],
(CONST dvoid*)0,
(OCIColl *)*cintarray);

The "X" in the second registerOutParameter is the type name which
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create Type integer_table is table of number(10);
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and other thing to keep in mind is that it only works with nested
table or varray and not with pl/sql table.
Al Pivonka (guest) wrote:
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with
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The size limit of the OCI LOB Array Insert is 64K for one field?

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It is called Data Interface to work with LOB datatypes by APIs designed for use with legacy datatypes. I can specify SQLT_BIN to bind memory binary data to BLOB column, and INSERT or UPDATE directly. It can be without LOB locator and save round-trip to the server. This is very fit my needs, because I have to insert very much BLOBs to server as soon as possible.
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Bulk loading BLOBs using PL/SQL - is it possible?

Hi -
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Hello everyone,
In my application, user uploads a CSV file (it is stored as BLOB), which is later read and parsed into table. The parsing engine is shown bellow...
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Is there any CSV parser that supports national characters? Or, said in other words - is it possible to read BLOB by characters (where characters can be Ö, Ü etc.)?
Regards,
Adam
|
| helper function for csv parsing
|
+-----------------------------------------------*/
FUNCTION hex_to_decimal(p_hex_str in varchar2) return number
--this function is based on one by Connor McDonald
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end hex_to_decimal;
|
| csv parsing
|
+-----------------------------------------------*/
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    c_chunk_len   number := 1;
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        if n_rows > n_skip_rows then
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        n_col := 0;
      ELSIF v_char != chr(10) and v_char != chr(13) THEN
        v_line := v_line || v_char;
        if v_char = ';' then
          n_col := n_col+1;
        end if;
      END IF;
    END LOOP;
    COMMIT;
    return true;
EXCEPTION
     -- some exception handling
END;

Uploading CSV files into LOB columns and then reading them in PL/SQL: [Its|http://forums.oracle.com/forums/thread.jspa?messageID=3454184&#3454184] Re: Reading a Blob (CSV file) and displaying the contents Re: Associative Array and Blob Number of rows in a clob doncha know.
Anyway, it woudl help if you gave us some basic information: database version and NLS settings would seem particularly relevant here.
Cheers, APC
blog: http://radiofreetooting.blogspot.com

Oci post varray of blobs to the database - any ideas?

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Hello,
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421780,
Sounds like a good candidate for XML. Have you considered that? Have you seen Oracle's XML Technology Center?
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Howto insert blob using pear mdb2

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//...some code here to instantiate MDB2 class...
$buf = file_get_contents('/path/to/blobfile');
$fieldsValues = array(
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shienna17 wrote:
javax.servlet.ServletException: java.lang.ClassCastException: [B cannot be cast to java.sql.Blob
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Retrieve Image from SQL Server and Store in Oracle

Hi All
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Hi Rajaram
Thanks for UR Reply
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Problem with applyusagerights

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objFileStream2.Close()
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End Try
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Hi,
I'm having the same problem. When I try to apply usage rights, the byte array that's supposed to contain the unlocked PDF comes back null. Was this problem ever solved. Thanks in advance for your help.

How to write bytearray in sqlite

I do not see where mentioned this problem.

Hi,
you've 3115 unrecognized token error - which could be for example that statement do not contains required/expected value - or contains value that is not recognized (unexpected) I think. Have you tried parameters?
var sql:String = "INSERT INTO thumbnail (fileName, filePath, fileData) VALUES (@name, @path, @data)";
ssm.text = sql;
ssm.parameters["@name"] = name;
ssm.parameters["@path"] = path;
ssm.parameters["@data"] = data;
or:
var sql:String = "INSERT INTO thumbnail (fileName, filePath, fileData) VALUES (:name, :path, :data)";
ssm.text = sql;
ssm.parameters[":name"] = name;
ssm.parameters[":path"] = path;
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or:
var sql:String = "INSERT INTO thumbnail (fileName, filePath, fileData) VALUES (?, ?, ?)";
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ssm.parameters[0] = name;
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Your "data" needs to be ByteArray (as it is raw byte blob). You need parameters because (as in linked doc) when parametrized value is used it is directly:
Values supplied as parameters using the SQLStatement.parameters associative array are assigned the storage class that most closely matches the native data type bound. For example [...] ByteArray objects are given the BLOB storage class.
When using object to be written as BLOB in SQL string literal (as in your sample) the previous paragraph in Adobe's docs says it is expected to provide data in special hexadecimal notation and I haven't yet seen someone using bytearray with that way of data conversion during sql injection - but I've seen people using parametrized values to insert byte array into blob already.
regards,
Peter

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