In my case, I copied the text (XML) from the source column in the source database and pasted it to a file.

The file handler is “EXAMPLE_LOB_DIR” and the directory is “/directory/to/filter.xml”. Update Column In Database Now that we have the file handler, we’ll use the chunk of SQL Syntax below, to read the XML File into a SQL UPDATE statement, which updates DATA(column) in the CONFIG(table) with data in the dest_clob(xml file).

With some MSSQL and My SQL skills, I did some reading up on how Oracle can manipulate CLOB/LOB Columns using DBMS_LOB.

updating clob column-76

During a recent migration project for one of our customers, I needed to export certain XML rows from a Novell Sentinel 6.1 Oracle 10G R2 Hotfix 4 Database.

In particular, I found that it was not possible to export Filter Configuration in Novell Sentinel 6.1 and I needed the 250 Filters in the new Database and new Sentinel Server.

and large-object (LOB) columns can be used for columns containing JSON documents.

To these APIs, a stored JSON document is nothing more than a string of characters.

I have a table in Oracle database with field with data type CLOB. I am storing XML string which is 10,000 characters long for each record.

I have more than 100, 000 of records in this table.

You can work directly with JSON data contained in file-system files by creating an external table that exposes it to the database.

For better performance, you can load the external-table data into an ordinary table.

The restrictions in place made it impossible to edit the fields using utilities such as DBVIS or Toad for Oracle.

I wanted to be able to write SQL Statements that allowed files to be read into the stream and update the backend database column (CLOB).

You specify that a JSON column must contain only well-formed JSON data by using SQL condition that contains JSON documents is thus no different from working with any other column of that type.