diff --git a/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBJDBCResultSet.java b/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBJDBCResultSet.java
index f9c3fe481ac7c..c3e94425b03f1 100644
--- a/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBJDBCResultSet.java
+++ b/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBJDBCResultSet.java
@@ -231,8 +231,15 @@ public void deleteRow() throws SQLException {
   }
 
   @Override
-  public int findColumn(String columnName) {
-    return ioTDBRpcDataSet.findColumn(columnName);
+  public int findColumn(String columnName) throws SQLException {
+    if (isClosed()) {
+      throw new SQLException("ResultSet is closed");
+    }
+    try {
+      return ioTDBRpcDataSet.findColumn(columnName);
+    } catch (NullPointerException e) {
+      throw new SQLException("Column '" + columnName + "' not found");
+    }
   }
 
   @Override
diff --git a/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBPreparedStatement.java b/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBPreparedStatement.java
index c92b6549bf9d0..2dc2414cd240f 100644
--- a/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBPreparedStatement.java
+++ b/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBPreparedStatement.java
@@ -257,7 +257,15 @@ public void setBinaryStream(int parameterIndex, InputStream x, long length) thro
 
   @Override
   public void setBlob(int parameterIndex, Blob x) throws SQLException {
-    throw new SQLException(Constant.PARAMETER_SUPPORTED);
+    if (x == null) {
+      setNull(parameterIndex, Types.BLOB);
+    } else {
+      try {
+        setBytes(parameterIndex, x.getBytes(1, (int) x.length()));
+      } catch (SQLException e) {
+        throw new SQLException("Failed to read Blob data: " + e.getMessage(), e);
+      }
+    }
   }
 
   @Override
diff --git a/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBTablePreparedStatement.java b/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBTablePreparedStatement.java
index 722f1ed1a5783..7ba80cb781659 100644
--- a/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBTablePreparedStatement.java
+++ b/iotdb-client/jdbc/src/main/java/org/apache/iotdb/jdbc/IoTDBTablePreparedStatement.java
@@ -568,7 +568,16 @@ public void setBinaryStream(int parameterIndex, InputStream x, long length) thro
 
   @Override
   public void setBlob(int parameterIndex, Blob x) throws SQLException {
-    throw new SQLException(Constant.PARAMETER_SUPPORTED);
+    checkParameterIndex(parameterIndex);
+    if (x == null) {
+      setNull(parameterIndex, Types.BLOB);
+    } else {
+      try {
+        setBytes(parameterIndex, x.getBytes(1, (int) x.length()));
+      } catch (SQLException e) {
+        throw new SQLException("Failed to read Blob data: " + e.getMessage(), e);
+      }
+    }
   }
 
   @Override