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();