diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSet.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSet.java
index 1a32ecad9d92f9d50a25011a7a317637cff43759..80ff49253016c632b6bf85f4756fe2d702a9bffc 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSet.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBResultSet.java
@@ -17,12 +17,12 @@ package com.taosdata.jdbc;
 import java.math.BigDecimal;
 import java.sql.*;
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 
 public class TSDBResultSet extends AbstractResultSet implements ResultSet {
-    private TSDBJNIConnector jniConnector = null;
+    private TSDBJNIConnector jniConnector;
 
+    private final TSDBStatement statement;
     private long resultSetPointer = 0L;
     private List<ColumnMetaData> columnMetaDataList = new ArrayList<>();
 
@@ -33,24 +33,6 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
     private boolean lastWasNull = false;
     private final int COLUMN_INDEX_START_VALUE = 1;
 
-    private int rowIndex = 0;
-
-    public TSDBJNIConnector getJniConnector() {
-        return jniConnector;
-    }
-
-    public void setJniConnector(TSDBJNIConnector jniConnector) {
-        this.jniConnector = jniConnector;
-    }
-
-    public long getResultSetPointer() {
-        return resultSetPointer;
-    }
-
-    public void setResultSetPointer(long resultSetPointer) {
-        this.resultSetPointer = resultSetPointer;
-    }
-
     public void setBatchFetch(boolean batchFetch) {
         this.batchFetch = batchFetch;
     }
@@ -59,10 +41,6 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
         return this.batchFetch;
     }
 
-    public List<ColumnMetaData> getColumnMetaDataList() {
-        return columnMetaDataList;
-    }
-
     public void setColumnMetaDataList(List<ColumnMetaData> columnMetaDataList) {
         this.columnMetaDataList = columnMetaDataList;
     }
@@ -71,25 +49,11 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
         return rowData;
     }
 
-    public void setRowData(TSDBResultSetRowData rowData) {
-        this.rowData = rowData;
-    }
-
-    public boolean isLastWasNull() {
-        return lastWasNull;
-    }
-
-    public void setLastWasNull(boolean lastWasNull) {
-        this.lastWasNull = lastWasNull;
-    }
-
-    public TSDBResultSet() {
-
-    }
-
-    public TSDBResultSet(TSDBJNIConnector connector, long resultSetPointer) throws SQLException {
+    public TSDBResultSet(TSDBStatement statement, TSDBJNIConnector connector, long resultSetPointer) throws SQLException {
+        this.statement = statement;
         this.jniConnector = connector;
         this.resultSetPointer = resultSetPointer;
+
         int code = this.jniConnector.getSchemaMetaData(this.resultSetPointer, this.columnMetaDataList);
         if (code == TSDBConstants.JNI_CONNECTION_NULL) {
             throw new SQLException(TSDBConstants.FixErrMsg(TSDBConstants.JNI_CONNECTION_NULL));
@@ -349,75 +313,109 @@ public class TSDBResultSet extends AbstractResultSet implements ResultSet {
 
     @Override
     public boolean isBeforeFirst() throws SQLException {
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
 
-        return false;
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean isAfterLast() throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean isFirst() throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean isLast() throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public void beforeFirst() throws SQLException {
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
 
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public void afterLast() throws SQLException {
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
 
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean first() throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean last() throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public int getRow() throws SQLException {
-        return 0;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean absolute(int row) throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean relative(int rows) throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     @Override
     public boolean previous() throws SQLException {
-        return false;
+        if (isClosed())
+            throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
+
+        throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_UNSUPPORTED_METHOD);
     }
 
     public Statement getStatement() throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_RESULTSET_CLOSED);
 
-//        return this.statement;
-        return null;
+        return this.statement;
     }
 
     public boolean isClosed() throws SQLException {
-        //TODO:
+        //TODO: check if need release resources
         boolean isClosed = true;
         if (jniConnector != null) {
             isClosed = jniConnector.isResultsetClosed();
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java
index 9def464e030ec9f6d67bdd1bf628cb2d36f990dd..c4c1904629fcd277bf8c9c6f3db422f1aa7b6ffc 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBStatement.java
@@ -56,7 +56,7 @@ public class TSDBStatement extends AbstractStatement {
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_WITH_EXECUTEQUERY);
         }
 
-        TSDBResultSet res = new TSDBResultSet(this.connector, pSql);
+        TSDBResultSet res = new TSDBResultSet(this, this.connector, pSql);
         res.setBatchFetch(this.connection.getBatchFetch());
         return res;
     }
@@ -97,7 +97,7 @@ public class TSDBStatement extends AbstractStatement {
             return false;
         }
 
-        this.resultSet = new TSDBResultSet(this.connector, pSql);
+        this.resultSet = new TSDBResultSet(this, this.connector, pSql);
         this.resultSet.setBatchFetch(this.connection.getBatchFetch());
         return true;
     }
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBSubscribe.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBSubscribe.java
index deffd9aa2ae88802f71af5cbec66c5896cf4e19a..84d23ad45c6ef4e78c5d8db37c3f66b50662bab8 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBSubscribe.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/TSDBSubscribe.java
@@ -50,7 +50,7 @@ public class TSDBSubscribe {
         } else if (resultSetPointer == TSDBConstants.JNI_NULL_POINTER) {
             return null;
         } else {
-            return new TSDBResultSet(this.connecter, resultSetPointer);
+            return new TSDBResultSet(null, this.connecter, resultSetPointer);
         }
     }
 
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
index 3d80ff066cacfdf71f087942f11e2ee5e86b65ee..e6575ca64aa07fefa8b7f3229f8545593e38fc33 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/ResultSetTest.java
@@ -115,6 +115,7 @@ public class ResultSetTest {
     public void testUnsupport() throws SQLException {
         statement.executeQuery("show databases");
         resSet = statement.getResultSet();
+
         Assert.assertNotNull(resSet.unwrap(TSDBResultSet.class));
         Assert.assertTrue(resSet.isWrapperFor(TSDBResultSet.class));
         try {
diff --git a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
index e9031e9fde8f1d92ed910d87a48e5c0c946846a2..73ceafa7299b256d7e83064b53bd638835a4b075 100644
--- a/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
+++ b/src/connector/jdbc/src/test/java/com/taosdata/jdbc/StatementTest.java
@@ -55,7 +55,7 @@ public class StatementTest {
         statement.executeUpdate("create database if not exists " + dbName);
         statement.executeUpdate("create table if not exists " + dbName + "." + tName + "(ts timestamp, k1 int)");
         statement.executeUpdate("insert into " + dbName + "." + tName + " values (" + ts + ", 1)");
-        statement.executeQuery("select * from " + dbName + "." + tName);
+        statement.execute("select * from " + dbName + "." + tName);
         ResultSet resultSet = statement.getResultSet();
         Assert.assertNotNull(resultSet);