Question

How to insert data with more than 4000 char in clob datatype in oracle 9 i

Asked by: santy08

Hi Experts ..
 I am trying to migrate postgreSQL database to oracle 9i. I have scripts from postgreSQL to create tables and to insert data in to oracle. I have data with more than 4000 chars in a column. For that i used clob data type in oracle. When i am trying to run my script for inserting data it give me an error like.
"The string literal is longer than 4000 characters.
*Action:   Use a string literal of at most 4000 characters.
           Longer values may only be entered using bind variables. "

Can any one help me with this please. thanks in Advance.

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Asked On
2009-04-01 at 13:01:01ID24286362
Tags

clob oracle

Topics

Databases Miscellaneous

,

Oracle Database

,

Oracle 3rd Party Tools

Participating Experts
3
Points
500
Comments
7

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Answers

 

by: johnsmith1962Posted on 2009-04-01 at 15:25:33ID: 24044613

You can use a stored procedure with a bulk collect.

 

by: santy08Posted on 2009-04-01 at 15:59:42ID: 24044798

thanks for the response. I am very new to database. can u give me an example please.

 

by: yuchingPosted on 2009-04-01 at 18:29:48ID: 24045667

try this
- TABLEA - oracle
- TABLEB - your table

INSERT into TABLEA (col1)
SELECT utl_raw.cast_to_raw(col1) FROM TABLEB

 

by: santy08Posted on 2009-04-02 at 08:49:35ID: 24051188

ill try this . Tell me what is this utl_raw.cost_to_raw do? my table is in postgres.. How i can write a select for a table in postgresql in oracle?

 

by: yuchingPosted on 2009-04-03 at 00:00:24ID: 24057285

utl_raw.cost_to_raw is a function for oracle. Unfortunately this can be use in postgres database.
How did you insert into oracle database?
Did you export the data in postgres into text and import it into oralce?
or you use a 3rd party tools?

 

by: santy08Posted on 2009-04-03 at 10:30:55ID: 24062295

I am Exporting data from postgresql to a text file and then using a .ctl and bat file to lode data using sql * loader

 

by: ddas_authPosted on 2009-04-03 at 10:53:21ID: 24062484

I had faced similar problems while migrating data from sybase db to oracle9i. There are some help documents in oracle's metalink.oracle.com site.

However I resorted to migrating the data using java program.
At first fill the clob field using "EMPTY_CLOB()". Then update using java programs as attached below(not a complete code).

String sql = "SELECT clobColumn, recordId FROM clobTable FOR UPDATE";
conn.setAutoComit(false); //make sure autocomit is false
Statement stmt = conn.createStatement();
ResultSet rs = stmt.executeQuery(sql);
while( rs.next()){
       CLOB clob = (CLOB)rs.getClob(1);
       Writer clobWriter = clob.setCharacterStream(1L);
       clobWriter.write("data from text file for the recordId");
       clobWriter.close();
}
con.commit();
//make sure you comit

                                              
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