1. Adding Java Objects to database stackoverflow.comFor this university assignment I have a Prize object which contains either text, Image, Video. I would like to save this information into a Blob field in a database which will ... |
2. Which type do I use to represent an arbitrary blob in Java? stackoverflow.comI have an application that may receive data via various methods and in various formats. I have pluggable receivers that somehow acquire the data (e. g. by polling a mailbox, listening ... |
3. how to view blob content stackoverflow.comJavaBean has some field type of byte[]. Bean is stored in DB to BLOB type of column. I know that it is XML message. How can I see this XML message. thank you very ... |
4. Can Not Access Blob Type data stackoverflow.comMy Code is try { |
5. BlobTypeHandler - blob binarystream usage stackoverflow.com |
6. Uploading excel sheet in Java using blob or clob stackoverflow.comI am new to java. I have a task of uploading Excel sheet to database (MySQL). Can anyone help me with the code ? Mention the steps and also suggest which ... |
7. How to manipulate a BLOB in Java? stackoverflow.comI have a DB procedure which returns a BLOB. Can anyone tell me how to manipulate the BLOB? Is there any specific API for this? |
8. using blob in JAVA DB forums.netbeans.orgI have downloaded netbeans 7. I have created a table using the following code in JAVA DB: CREATE TABLE MYBLOB(ID INTEGER UNIQUE, BLOB_COL BLOB); Table is successfully created. But the how to add an existing .doc or .ppt or any other audio or video file into the table. How can i retrieve the inserted files? |
9. BLOB coderanch.comHi all, I want to create Blob objects. How can i do that ? Must I implement the java.sql.blob interface ? I did it for Clob object but internal representation of a blob seems to be more complex... what could be this implementation of a blob ? Thx for any help. Christophe |
10. Extremly urgent... Blob compression coderanch.com |
11. BLOB coderanch.com |
12. BLOB throwing class cast exception coderanch.comHi, I am trying to fetch a file from a table in database. The whole file is stored as a BLOB in the table. But I am getting a class cast exception. Blob file = rs.getBlob("file_data"); //Getting CLASS CAST Exception in the next line InputStream inputStream =((oracle.sql.BLOB) file).getBinaryStream(); byte data[] = new byte[((oracle.sql.BLOB)file).getChunkSize()]; Can anyone help me out whether its code ... |
13. Deserialization of BLOB returning NULL coderanch.comI'm storing a serialized object graph on a DB2 table into a column of type BLOB. I can successfully retrieve this column into java as a byte[]. But when I try to deserialize it, it comes back NULL. If I take DB2 out of the picture (ie, run a test where I serialize the object graph then turn around and deserialize ... |
14. How to insert/Retrieve object as Blob to/from database table? coderanch.com |
15. Blob Clob coderanch.comhi, I am not quite sure whether Ms-Access supports Blob, Clob Data types. But I know that Oracle 8.x supports I can show u a few examples of how to use them with Oracle /** * @author Robin Paul (The Great) * * Development Environment : JDeveloper 2.0 * Name of the Application : LOBSample.java * Creation/Modification History : * * ... |
16. How to retreive a blob.... coderanch.comHi all, I am trying to retreive a blob from the oracle 8.1.6.0.0 using jdk1.3. I tried most of the method's as per the API but could not get any result. blob = (java.sql.Blob) rs.getObject(3); InputStream in = blob.getBinaryStream(); byte[] b_blob = new byte[blob.length()]; b_blob = in.getBytes(1, blob.length()); // length = blob.length(); // txtfield.append("Length of blob : " + length); Is ... |
17. storing/retrieving BLOB data coderanch.com |
18. BLOB datatype coderanch.com |
19. How to print a BLOB coderanch.comit looks like a problem with your loop. You only read every second byte: byte b; //you read one byte here, but disregard the value while ((in.read()) > -1) { //you read the next byte and use this one b = (byte)in.read(); out.print((char)b); } // prints out all the bytes in the BLOB value that blob designates try something like: byte ... |
20. JDBC - BLOB question - any java guru with an answer? coderanch.com |
21. using a BLOB coderanch.comYou should probably use a Clob http: //java.sun.com/products/jdk/1.2/docs/api/java/sql/Clob.html#getSubString(long, int) if the data contains a String. Use Clob.getSubString( long pos, int length), such as like this: String myString = myClob.getSubString( 1, myClob.length()) If the data must be a Blob, and if it contains Unicode data, you can do like this: String myString = new String( myBlob.getBytes( 1, myClob.length()) If the Blob is ... |
22. Text search on a BLOB coderanch.comTechnically, no. A BLOB is a BINARY Large Object. Blobs are usually not used to store text, thus it really doesn't make sense to do a text search on a blob. Of course, there could be text embedded in the blob, such as track data in an mp3. But still, I doubt any database supports text searching in a binary large ... |
23. Sunday 11pm - defeated by BLOB . Want to see whether you can do this ? coderanch.comHi. Dare I hope for one of those helpful hints I have been getting on and off ??? I have managed to "serialize" an image from a Blob (either .jpg or .gif) - that's the good news. Trying to display them from the serialized record has been a disaster : => demoApplet: Connection com.developer.Tunnel.RemotedemoClient@659db7 has been initialized. java.lang.NullPointerException at sun.java2d.pipe.DrawImage.copyImage(Unknown Source) ... |
24. To CLOB or BLOB? coderanch.com |
25. blob and query heap memory coderanch.comWhen I try to insert a large blob (10 megs) into a db2 database using JDBC, I get an error about the query heap not having enough memory. When I increase the query heap size to more than 10 megs, the query executes fine. Interestingly enough, the same blob inserts fine using a CPM. If I guess a number too low, ... |
26. BLOB coderanch.comIt is painful. First of all, be sure your JDBC connection has auto commit set to false. Upon insert or update replace column value with either EMPTY_CLOB() or EMPTY_BLOB() depending on underlying data type. Next, select the Clob or Blob column from the database, in Oracle you can use ResultSet.getClob() or ResultSet.getBlob() Now, using the Clob or Blob interface; get the ... |
27. dealing with BLOBS coderanch.com |
28. How to print a BLOB coderanch.com |
29. Exercising with BLOBS coderanch.comMy daddy gave me a subscription to JavaPro magazine, and in the Jan/Feb 04 issue there is an article by JohnO'Donohue about using JDBC to manage big ol' datatypes. Trying to keep my JDBC skills from atrophying, I tried to work through the code examples, but something ain't working. I didn't do 3 things exactly like the example, but I'm not ... |
30. BLOB versus clob coderanch.com |
31. BLOB data type coderanch.com |
32. Informix and Blob and CallableStatement coderanch.com |
33. BLOB Advantages? coderanch.comHi all, I've trying to store nearly 80,000 files (75K each) somewhere (file system or database). Is the advantage with BLOB's that they can access the files much faster through the database versus a file system (performance)?? I am guessing memory is still a major issue to think over since I will need over 5GB on both hard drives (database or ... |
34. BLOBs and CLOBs coderanch.comWe're converting to Oracle (10g specifically), and now we're going to start storing in the database a bunch of files that our web app used to store in flat files outside of any database (including XML, HTML, other text files, and some kinds of images). All of these files would be associated with a record in our Transaction table (since there ... |
35. How to handle BLOB and CLOB? coderanch.comMy application collects data from oracle and stores it in xml files and again it can read the contents of xml files and store it back to the oracle. My programme is running fine. But now I want to handle BLOB and CLOB datatypes for storing the data from oracle to xml and again from xml to oracle. But I am ... |
36. diff between two methods to write the blob into the db coderanch.comHi, We can store the blob in db using any of the following, 1. using setBlob method 2. Inserting emptyBlob() selecting that particular blob row get the binary output stream insert into db Whats the difference between these two methods? Anyother way to insert the blob into db? Thankx in advance. Regards, Karthik |
37. Blob? coderanch.com |
38. Creating an ObjectInputStream from a Blob! coderanch.com |
39. BLOB truncated to 64MB coderanch.comChange the column to be MEDIUMBLOB If you read the mysql docs BLOBs are specified to be 64k or less, MEDIUMBLOB is 2^24 bytes max (16Mb?) , LONGBLOB is 2^32 bytes max. @see http://dev.mysql.com/doc/mysql/en/storage-requirements.html Adeel, while oracle may be reliable and tested (in your opinion, I don't have one), it generally also costs $$$, which might not be so suitable on ... |
40. exception in retrieveing Blob coderanch.com |
41. varchar2, clob and blob? coderanch.com |
42. Search BLOB for text coderanch.comI have around 7000 blob records containg word Doc's.(Its increasing ...) I need a text search on this BLOB feild. I am considering two options as of now: 1. store all the BLOB into the local File system of the App Server and use file search.i.e create a file object and loop and search.Thus every time i insert a new blob ... |
43. Nested Table collection type with Blob Attributes coderanch.comI am currently working on a solution where I need to extract a cursor of Blob datatype . I extract the blob from the file system but do not want to store it in a table. Instead I created an object type with Blob attributes and created a nested table. but when I do the following, I get an error ORA-22922: ... |
44. Problem when readin blob coderanch.comHello, I am inserting a blob in my Oracle DB.I first insert an empty_blob() and then update this same empty_blob with a pdf file.This is how i update it: BufferedInputStream bis = new BufferedInputStream(new ByteArrayInputStream(byteData)); Connection conn = getDataSource().getConnection(); PreparedStatement ps = conn.prepareStatement("UPDATE TPI_DBA.SCHEDULED_REPORTS SET SHR_REPORT = ? WHERE SHR_REPORT_TYPE='MT202' "); ps.setBinaryStream(1, bis, byteData.length); ps.executeUpdate(); ps.close(); conn.commit(); I am then trying ... |
45. Blob & Clob coderanch.comVery Often we have to store the Binary data in Database In that condition I have studied somwhere that there are two Interfaces in java.sql package called as Blob & Clob Now If I want to store suppose a media file. Now could anyone illustrate me with a very simple code how to use Blob & Clob Don't think so that ... |
46. what is Blob and Clob? coderanch.com |
47. How to get the BLOB coderanch.com |
48. How to see the content of BLOB Field coderanch.com |
49. BLOB alternatives coderanch.com |
50. How to Display the BLOB Field coderanch.comHi, I have written the code to get the BLOB Fields from the table. That BLOB Fields contain XML. How to view the content of that BLOB Field i mean that XML. I want to see the content of That XML. The code snippet:- **************** Blob aBlob = resultSet.getBlob(1); Now the aBlob contains the XML. How to display the content of ... |
51. BLOB and CLOB coderanch.comIf Still Have Some Doubt Do Ask import java.io.*; import java.sql.*; public class LoadImage { public static void main( String[] args ) { if( args.length < 3 ) { System.out.println( "Usage: LoadImage |
52. Blob in postgres coderanch.com |
53. JavaDB maximum BLOB size coderanch.comHi, I have an application that stores binary data in BLOBs in a JavaDB (aka Derby) database. The data is usually quite small (e.g. 10 kilobytes) but just occasionally rather larger (we've seen 500 kilobytes). When I first wrote the application, I somewhat arbitrarily specified 256 kilobytes as the maximum BLOB size. The 500k data therefore overflowed this. I could just ... |
54. How to instantiate Blob? coderanch.com |
55. Using BLOB in java coderanch.com |
56. Blob formatted in XML coderanch.com |
57. clob and blob coderanch.com |
58. FileChooser.getSelected() turn into Blob coderanch.comI have a file chooser and I want to take the selected file, and turn it into a Blob so I can store it in a MySQL DB... Does anyone have any advice? Note: I did look around previous forums and didn't find anythign quite liek this. Here is a code snippit: chooser = new JFileChooser(); FileNameExtensionFilter filter = new FileNameExtensionFilter( ... |
59. Parsing a BLOB XML object coderanch.comHi, I am having a really strange problem, I am fetching a database BLOB object containing the XMLs and then parsing the XMLs. The XMLs are having some UTF-8 Encoded characters and when I am reading the XML from the BLOB, these characters lose their encoding, I had tried doing several things, but there is no means I am able to ... |
60. Parsing BLOB datatype coderanch.comHello, I need help/suggestion on how to resolve the following issue. I need to read an xml file stored in as BLOB in an oracle table. I am able to read the file. I am stuck after this because, I am calling another java program to parse by passing in an XML file. Since I am not sure how to convert ... |
61. Urgent:BLOB Separation coderanch.comhi, We have a form where we are storing two binary objects BLOB ( image/gif file) There is also a program called Multipart.java that parses through the form and stores the parameters of the image file like "content", "content-type", "content-disposition" in a hash table. Now when we have two files the problem is that the "content" parameter is the same in ... |
62. problem in getting Blob data and displaying coderanch.comhi andy, here is the exception code: message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: [B at org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:516) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:457) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:264) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1289) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:484) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:256) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) at ... |
63. blob object coderanch.com |
64. Null pointer while using BLOB coderanch.comI am trying to extract a file name and its data from the database. The file data is stored as HUGEBLOB in the table. The file contains data which I found by downloading it directly from table using TOAD. However when I try to fetch the data throughh Java code : Blob file = rs.getBlob("file_data"); I am getting null pointer in ... |
65. How to pass BLOB to a PL/SQL Stored Procedure coderanch.comHi, Can someone please provide a small sample on how to call a PL/SQL stored Procedure and pass in a parameter of type BLOB. I need to call a PL/SQL Stored Procedure and pass BLOB as a parameter. I have table that stores different types of files and the datatype of the column is BLOB so from my java program I ... |
66. Search for Text in a BLOB coderanch.comThe DB has no notion of searching inside of BLOBs in general, or of structured file formats specifically. You could extract the text from those documents and store it in an additional text field, which could then be searched by SQL. The Apache POI library can do this for Office file formats, and Apache PDFBox for PDFs. |
67. how to create BLOB and CLOB data coderanch.comIn my opinion the hard part is creating the blob/clob and getting its handle. If you are at least on Oracle 10.2 and habe Oracle 10g JDBC Driver, you could try this. (I've devised this technique from the Oracle JDBC Guide, which I strongly suggest for reading.) Let's have a table: create table mytable(id number(10,0) primary key, data blob); Inserting a ... |
68. Transform Blob Object to Xml data coderanch.com |
69. NullPointerException while trying to get BLOB object coderanch.com |
70. how to pass multiple BLOB objects to a PLSQL procedure? coderanch.comHi All, DB: Oracle 11g. I have a table type of BLOB defined in the DB. create or replace my_type as table of blob. I have a UI where users can upload multiple files as attachment to an service order getting created. I use Oracle BC4J, hence these documents are stored as BlobDomain. In my java class, I am trying to ... |
71. Calling an Informix Sp with a Blob argument dbforums.com |
72. MS Word to Blob dbforums.comRepost I forgot to mention an important point. The user has selected a link which loads a word document that is stored as a blob into an IE Browser. I need to convert the word document into a Blob and return it to its original rowId. This needs to happen if the browser is closed or the client selects "save as" ... |
73. problem with blob dbforums.comhello, i have a oracle 8.1.7 database. when I insert a file via jdbc 2 into a blob column, it work fine, if the file is smaller than 5700 bytes. if it is bigger, the file is not inserted into the column. how can i enhance the size, which i can store in a blob column??? i tried to make changes ... |
74. Display BLOB contents to client dbforums.comI want to display the blob contents in the clients window and give him the option either to open or save the contents. I am able to read the contents from Oracle Blob Field and stored the contents in the ByteArrayOutputStream object but I am not able to open the contents for the client. I am using the following code Blob ... |
75. displaying a blob type dbforums.comHi. I am using mySql. I have a column of type blob (since what I want to do requires a string larger then varchar can handle). I'm not quite sure how I can get the information from this column and display it as a string so that it is displayed on a web page. I see that there is a getBlob ... |
76. loading blob data in database java-forums.orgThis is a bit off topic, but maybe you can help. I want to store a series of .jpg images as blob data in a Derby database on a server. A Java client program will them access that database, allowing the user to view them. The algorithm for downloading the blob data seems pretty straightforward. How do I actually (bulk) import ... |
77. blob problem forums.oracle.comOnly trying and experimenting will resolve your doubt i guess In general when you need to pass it in the href the it has to be text. You could always transform the blob into text and back again but you would run into the limits of how long it can be very quickly. The real question is, why would you want ... |
78. regarding blob display forums.oracle.comhi all, i have sucessfully inserted an image from a JSP page to mysql table.Now my prob is how to display that blob again in a JSP page.Is there a way to display it directly from mysql table onto the JSP page instead of copying it intially in an intermediate folder and then from there giving the location in src attribute ... |
79. HELP in working with Blobs forums.oracle.comHi friends, I am working with Image files and reports containing images.. I hv a requirement to store huge image report files from local drive( in the form of file) to the database BLOB ( oracle). I want to know what is the best way to transfer an image file of almost 1.3GB into insert into BLOB. I have tried to ... |
80. How to extract the BLOB data from database forums.oracle.com |
81. Need help!: How to covert Excel into BLOB and pass into procedure? forums.oracle.comvikrant.oberoi wrote: Actually , I am uploading File by using Struts FormFile. That doesn't mean anything. One of the following is true. - You have a stream of bytes. - You have file system file location. That is the only thing 'File' can mean in terms of this discussion. For the second you open it, read the bytes, then close it. ... |
82. Problem obtaining BLOB object forums.oracle.com |
83. How do I populate a blob object forums.oracle.comHi all. I want to store a blob in a mySQL database using Java. This blob is a picture file. I would like to insert fields into the blob and make it dynamic. In the example in the link below, I have a graphic with a logo. In that graphic is a name field. I would like to populate the name ... |
84. Design help: Use a "MVC-approach" or just blob it up? forums.oracle.comHi again, I'm trying to implement a little application that reads temperature data from a little unit over serial connection. The unit is to be used in a small robot project that I'm working on. So far I've been mostly doing the serial communication stuff, with the great help of this community ( thnx again, http://forums.sun.com/thread.jspa?messageID=10790318). What I've ended up with ... |
85. blob for office 2007 documents forums.oracle.comI have defined mime types for the docx and xlsx files and stored the file as blob type in database ,when opening the document its prompting " word found unreadable content in the document ,do you want to recover the contents of the document?if you trust the sourceof this document click yes" if i click yes document is opening with out ... |
86. Send blob data between sockets. forums.oracle.com |
87. Code Blob after C'tor forums.oracle.com |
88. Blob and FileInputStream forums.oracle.com |
89. corba's idl definition for the blob data type forums.oracle.comIn my project, I have a database access object class to download a blob type data from a table. I also defined a java transport class to host the blob data, Since this is done through a CORBA server, I also define a idl file for it. Question is, do we have a idl data type that maps the java.sql.blob type? ... |
90. blob to an iamge in a web page forums.oracle.comAfter you retrieve it from the database, you probably want to send the data to the user. I'm guessing that's what your question would have been about, had you asked one. I've done this in the past. I created a servlet (or perhaps it was a Struts action -- I don't recall now) that basically sent the image data as output, ... |
91. need help on blob program forums.oracle.comHello every body , i need to insert file into database using oracle 10g. i wrote form tag in my jsp like: i wrote in servlet: i wrote a stored procedure to insert values into table: FileInputStream fis=new FileInputStream(request.getParameter("attachment")); byte[] b= new byte[fis.available()+1]; fis.read(b); System.out.println(fis.read(b));----here am getting -1 System.out.println(b);----here am getting [B@1a4ded3 csmt.setBytes(6, b); when i check ... |
92. Getting null pointer excep while executing os = blob.setBinaryStream(1); forums.oracle.comHi I am inserting an empty blob into the DB and then trying to update it using output stream. But i am getting a null pointer exception here os = blob.setBinaryStream(1); pls note that the blob object is not null (ie) i am able to retrieve the empty_blob object from oracle but i am not able to set value to it. ... |
93. Loading a blob record forums.oracle.com |
94. doing setBytes() but when extracting data get BLOB error? forums.oracle.comThat inner for loop makes no sense. You don't need to iterate through the columns; you already know what's supposed to be in each one. Get rid of the loop and just refer to them by their absolute indices, like you did when you inserted the record. Also, I would advise always using the postfix operators i++ and i-- instead of ... |
95. Blob attribut forums.oracle.comHi; I use Ibatis under Java/J2ee for getting a Blob into a bean attribut and I would like to extract the data which contains. My question which api I must used for that : 1- ByteArrayInputStream + DataInputStream and the methods readFully, etc.. Or 2- From Blob api : long blobLength = blob.length(); byte[] bytes = blob.getBytes(pos, len);InputStream is = blob.getBinaryStream(); ... |
96. BLOB OBJECT forums.oracle.com |
97. Writing FOP output to BLOB forums.oracle.comOutputStream out = new java.io.FileOutputStream(pdffile); out = new java.io.BufferedOutputStream(out); try { // Construct fop with desired output format Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out); // Setup XSLT TransformerFactory factory = TransformerFactory.newInstance(); Transformer transformer = factory.newTransformer(new StreamSource(xsltfile)); // Set the value of a in the stylesheet transformer.setParameter("versionParam", "2.0"); // Setup input for XSLT transformation Source src = new StreamSource(xmlfile); // Resulting ... |