jdbc插入修改clob类型的两种方式

方法一：

Connection con = dbl.loadConnection();

strSql = "insert into table1(id,a) values (1,EMPTY_CLOB())";

dbl.executeSql(strSql);

String str2 = "select a from "

+ " table1 where id=1";

ResultSet rs = dbl.openResultSet(str2);

if(rs.next()){

    CLOB c = ((OracleResultSet)rs).getCLOB("a");

    c.putString(1, "长字符串");

    String sql =

	    "update table1 set a=? where id=1";

    PreparedStatement pstmt = con.prepareStatement(sql);

    pstmt.setClob(1, c);

    pstmt.executeUpdate();

    pstmt.close();

}

con.commit();

方法二：

Connection con = dbl.loadConnection();

CLOB clob   = oracle.sql.CLOB.createTemporary(con, false,oracle.sql.CLOB.DURATION_SESSION);

clob.putString(1,  "长字符串");

Sql1 = "update table1 set a=? where id=1";

PreparedStatement pst = con.prepareStatement(Sql1);

pst.setClob(1, clob);

pst.executeUpdate();

pst.close();

con.commit();

总结：生成一个clob对象，通过预处理的setClob达到插入更新的目的