Clob « Blob « Java Database Q&A





1. use of CLOB    coderanch.com

A direct insert into the CLOB field does not work if the data exceeds 4000 characters. Use the DBMS_LOB pacakage to access and manipulate the (C)LOB data. The feature of loading data directly from varchar2 to a CLOB field using an INSERT statement is not available in 8.0.x and 8.1.5. This feature is available in 8.1.6 and later versions. rgds arun. ...

2. problems with clob.putSubString    coderanch.com

3. use of CLOB,help me.    coderanch.com

I have a web based application that allows people to enter biographical info. The users should also be able to access their bio information and make changes. In order to present the data it must be a String. I am using a database table that defines a bio field as a CLOB data type (Oracle 8i release 8.1.7). I retrieve the ...

4. CLOB With Arabic Encoding    coderanch.com

5. Searching words in VARCHAR2 & CLOB    coderanch.com

6. Preserving text format for adding to CLOB    coderanch.com

Hi, I am using textarea html to retrieve paragraphs with carriage return. I search for it using stringtokenizer and it exists. I write to CLOB using java.io.Writer method. But when i retrieve it back to display it in TEXTAREA in the html form, all the formatting is lost. I tried using stringtokenizer while displaying also, but it cannot find the \r ...

7. Clob Data Types    coderanch.com

8. Problem with CLOB    coderanch.com

Hi, I created an application to insert XML and read the XML back to/from Oracle DB using CLOB & Weblogic. It's working fine except for some XML that I cannot read it back and got the SQL Exception with Oracle 24334 Error : ORA-24334 no descriptor for this position Cause: The application is trying to get a descriptor from a handle ...

9. Writing CLOB    coderanch.com





10. clob killer help needed    coderanch.com

11. CLOB Object efficiency problem    coderanch.com

12. CLOBS    coderanch.com

Hi, Environment :- DB2 (7.2.10) Websphere (5.2) I have a string of size 145290 bytes and am trying to Insert it into the DB using a stored procedure. The stored procedure accepts a clob. How can i create a clob to be passed on the Stored Procedure. The parameter is registerd with the DB as INOUT. So Once i execute the ...

13. inserrting to a CLOB    coderanch.com

hi
can someone tell me a way to write into Oracle CLOB field from a jsp page? i am working on iPlanet webserver on Solaris.

i am trying oracle.sql.CLOB class for this...the import statement works fine.
eg . import."oracle.sql.CLOB" but when i do CLOB.createTemporary(par1,par2,par3)..it fails..saying the method cannot be found..i am not sure whats causing the problem any suggestions?
thanks
Gunjan ...

14. how to write in a clob    coderanch.com

15. How to register a Clob in the dataBase    coderanch.com

Hai Everyone, I want to register a Clob in the database, can any give me an example as to how to go about this. What I mean is just as we create a table in the database, how do you create a clob. I frequently get an error message stating "File not found" Thanks to all

16. CLOB ClassCastException    coderanch.com





20. Clob Cyrillic woes    coderanch.com

When you see ??? instead of the characters you expected to see, that's a sign that the wrong encoding (charset) is being used to convert bytes to chars at some point. Now, you are using getCharacterStream(), so it's the database driver that is returning characters (not bytes) to your program. And it's not converting them correctly. So probably the solution is ...

21. problem with Clob    coderanch.com

I am using type 1 oracle drivers (JDBC ODBC BRIDGE DRIVER) but i am not able to use rs.getClob(1); my program is like this DriverManager.registerDriver(new sun.jdbc.odbc.JdbcOdbcDriver()); con = con=DriverManager.getConnection("jdbc dbc:jdbcodbc","scott","tiger"); stmt = con.createStatement (); System.out.println("inserting ur data........"); query1="insert into ttable values ( '" + textfmt + "' )"; stmt.executeUpdate( query1 ); query2 = "select textfmt from ttable"; rs2 = stmt.executeQuery(query2); while ...

22. Writing a Clob in Java    coderanch.com

In the application I'm reviewing a clob is written like this: - insert a row with an empty clob (with EMPTY_CLOB()) - select the clob-column with the empty clob to get the lob locator - update the row to write the new clob with "meaningful" data Now I'm told that performance is better when the lob locator is returned by the ...

23. class CLOB :cannot find symbol    coderanch.com

24. CLOB field....    coderanch.com

25. CLOB problem    coderanch.com

26. Clob in callable statement Error    coderanch.com

Hi, public static boolean putStringAsCLOB(String strContent, String strDataType, String strOperType) { boolean operationStatus=false; Connection connection = null; CallableStatement csmtObj = null; String clob = strContent; ByteArrayInputStream bais = new ByteArrayInputStream(pfoAsBytes); InputStreamReader reader=new InputStreamReader(bais); try { connection = getConnection(); csmtObj = connection.prepareCall("{call MYPROC(?,?,?)}"); csmtObj.setCharacterStream(1,reader,pfoAsBytes.length); csmtObj.setString(2,strDataType); csmtObj.setString(3,strOperType); operationStatus=csmtObj.execute(); } catch (Exception exception){ exception.printStackTrace(); } finally{ if(connection != null){ try { connection.close(); } catch ...

27. Can I use a Clob as an attribute of a structured type (to map to a Java VO)?    coderanch.com

Hi, I'm trying to use a Clob as an attribute of a structured type, but I'm having trouble retrieving the Clob from Oracle, resorting to explicitly retrieving it in a seperate query on a database column. Is there a way of retrieving it as part of a Java VO? I haven't found it explicitly printed where it's not possible, but I ...

28. problem with CLOB.createTemporary    coderanch.com

29. handling CLOB from java    coderanch.com

I think I found the answer to this. 1) Consult this link for background info http://download.oracle.com/docs/cd/B12037_01/java.101/b10979/jdbcversion.htm It talks about how some features were available in JDBC 3.0 and some were not. In general though my problem was solved by: A) Putting (what I think was) a more update-to-date version of ojdbc14.jar in Tomcat under common/lib folder. ( (I pulled this from ...

30. Problem while writing clob coulmn    coderanch.com

Hi, I am facing below problem, I want to write clob column with some data. I have am writing it by following two step process, 1) Write empty string into clob cloumn with the help of EMPTY_CLOB() method 2) Get the recently added clob object and then update it by using writer (Resultset.getCharacterOutputStream) This works fine for Statement but in case ...

31. Support localization in CLOB filed in DB through java    coderanch.com

I am facing problems with setting Latin-1 Supplement characters and Double byte characters in CLOB field in DB through Java code. The part of the code I am using to set data in the DB with encoding is: public void writeLOB(CallableStatement cstmt, int placeHolderIndex) throws SQLException { CLOB clob = (CLOB)cstmt.getClob(placeHolderIndex); writeCLOB(clob); } private void writeCLOB(CLOB clob) throws SQLException { Writer ...

32. Regarding clob    coderanch.com

33. Problem to display clob data    coderanch.com

Hello, Oracle version is: 11.2, jdk7 and tomcat apache-tomcat-6.0.18 I am facing problem to retriew record from database. my code is as follow: String query= " select to_char(nDate,'dd-mm-yyyy'),heading,type,isDisplayLink, "+ " desc1,desc2,status from newsArticles "+ " where c_id=? and sysdate<=nDate + interval '12' day order by nDate desc"; int count=0; PreparedStatement ps=cnn.prepareStatement(query); ps.setString(1, userId); rs=ps.executeQuery(); while(rs.next()){ String nDate =rs.getString(1); String heading =rs.getString(2); ...

35. Clob Retrieval Effort Failure    coderanch.com

36. how to handle data gotten from CLOBs?    coderanch.com

Hello, I need some guidance with handling clob data. I have a derby table: login(varchar), hash(clob), salt(clob). Hashes and salts are generated like this: public byte[] generate(byte[] password) throws Exception { String tempSalt = Long.toHexString(new Random().nextLong()); this.salt = StringUtils.getBytesUtf8(tempSalt); byte[] tempSaltPassword = new byte[this.salt.length + password.length]; System.arraycopy(this.salt, 0, tempSaltPassword, 0, this.salt.length); System.arraycopy(password, 0, tempSaltPassword, this.salt.length, password.length); MessageDigest md = MessageDigest.getInstance("sha-256"); md.reset(); ...