Progress Sonic ESB Configuration and Management Guide

Chapter 6: Driver Connection Properties and Data Types by Database Brand
XMLType Data Type
The Oracle driver supports tables containing columns specified as XMLType for Oracle9i
and higher. The driver maps the Oracle XMLType data type to the JDBC CLOB data type.
XMLType columns can be used in queries just like any other column type. The data from
XMLType columns can be retrieved as a String, Clob, CharacterStream, or AsciiStream.
When inserting or updating XMLType columns, the data to be inserted or updated must be
in the form of an XMLType data type.
Oracle provides the xmltype() function to construct an XMLType data object. The xmlData
argument of the xmltype() function can be specified as a string literal or a parameter
marker. If a parameter marker is used, the parameter value may be set using the setString,
setClob, setCharacterStream, or setAsciiStream methods.
The following code inserts data into an XMLType column using a statement with a string
literal as the xmlData argument of the xmltype() function:
// Insert xml data as a literal
String sql = "insert into XMLTypeTbl values (1, xmltype('" +
"123Mark'))";
Statement stmt = con.createStatement();
stmt.executeUpdate(sql);
The following code inserts data into an XMLType column using a prepared statement:
// Insert xml data as a String parameter
String xmlStr = "234Trish";
String sql = "insert into XMLTypeTbl values (?, xmltype(?))";
PreparedStatement prepStmt = con.prepareStatement(sql);
prepStmt.setInt(1, 2);
prepStmt.setString(2, xmlStr);
prepStmt.executeUpdate();
When the data from an XMLType column is retrieved as a Clob, the XMLType data cannot be
updated using the Clob object. Calling the setString, setCharacterStream, or
setAsciiStream methods of a Clob object returned from an XMLType column generates an
SQLException.
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