diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractStatement.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractStatement.java
index a801f5a674acdd23f1ca7f949cbb7092f4633bda..12641087fb774a82e80c8339f752ff5f514524a0 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractStatement.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/AbstractStatement.java
@@ -9,6 +9,7 @@ public abstract class AbstractStatement extends WrapperImpl implements Statement
 
     protected List<String> batchedArgs;
     private int fetchSize;
+    protected int affectedRows = -1;
 
     @Override
     public abstract ResultSet executeQuery(String sql) throws SQLException;
@@ -247,6 +248,7 @@ public abstract class AbstractStatement extends WrapperImpl implements Statement
     public boolean getMoreResults(int current) throws SQLException {
         if (isClosed())
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
+        this.affectedRows = -1;
         switch (current) {
             case Statement.CLOSE_CURRENT_RESULT:
                 return false;
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 e1ebc4ab3cf498168181dbea08a3ac28194a5c7d..436bdcf582b821292c5f4e69f51688f9bf84b870 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
@@ -23,7 +23,6 @@ public class TSDBStatement extends AbstractStatement {
      * Status of current statement
      */
     private boolean isClosed;
-    private int affectedRows = -1;
     private TSDBConnection connection;
     private TSDBResultSet resultSet;
 
@@ -80,12 +79,13 @@ public class TSDBStatement extends AbstractStatement {
         if (isClosed()) {
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         }
-        
+
         // execute query
         long pSql = this.connection.getConnector().executeQuery(sql);
         // if pSql is create/insert/update/delete/alter SQL
         if (this.connection.getConnector().isUpdateQuery(pSql)) {
-            this.affectedRows = this.connection.getConnector().getAffectedRows(pSql);
+            int rows = this.connection.getConnector().getAffectedRows(pSql);
+            this.affectedRows = rows == 0 ? -1 : this.connection.getConnector().getAffectedRows(pSql);
             this.connection.getConnector().freeResultSet(pSql);
             return false;
         }
@@ -99,7 +99,7 @@ public class TSDBStatement extends AbstractStatement {
         if (isClosed()) {
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         }
-        
+
         return this.resultSet;
     }
 
@@ -113,14 +113,14 @@ public class TSDBStatement extends AbstractStatement {
         if (isClosed()) {
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_STATEMENT_CLOSED);
         }
-        
+
         if (this.connection.getConnector() == null) {
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_JNI_CONNECTION_NULL);
         }
-        
+
         return this.connection;
     }
-    
+
     public void setConnection(TSDBConnection connection) {
         this.connection = connection;
     }
diff --git a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulStatement.java b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulStatement.java
index 21c76f73b287e55ef14f5d70cf6a911a9cb543db..b7f5fe8006368295753a366aa218a6cc17aa0588 100644
--- a/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulStatement.java
+++ b/src/connector/jdbc/src/main/java/com/taosdata/jdbc/rs/RestfulStatement.java
@@ -22,7 +22,6 @@ public class RestfulStatement extends AbstractStatement {
     private final RestfulConnection conn;
 
     private volatile RestfulResultSet resultSet;
-    private volatile int affectedRows;
 
     public RestfulStatement(RestfulConnection conn, String database) {
         this.conn = conn;
@@ -118,7 +117,7 @@ public class RestfulStatement extends AbstractStatement {
             throw TSDBError.createSQLException(resultJson.getInteger("code"), resultJson.getString("desc"));
         }
         this.resultSet = new RestfulResultSet(database, this, resultJson);
-        this.affectedRows = 0;
+        this.affectedRows = -1;
         return resultSet;
     }
 
@@ -140,9 +139,10 @@ public class RestfulStatement extends AbstractStatement {
         if (head.size() != 1 || !"affected_rows".equals(head.getString(0)))
             throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
         JSONArray data = jsonObject.getJSONArray("data");
-        if (data != null)
-            return data.getJSONArray(0).getInteger(0);
-
+        if (data != null) {
+            int rows = data.getJSONArray(0).getInteger(0);
+            return rows == 0 ? -1 : data.getJSONArray(0).getInteger(0);
+        }
         throw TSDBError.createSQLException(TSDBErrorNumbers.ERROR_INVALID_VARIABLE);
     }