diff --git a/development/connect-kaiwudb/java/connect-jdbc.md b/development/connect-kaiwudb/java/connect-jdbc.md
index 7d8436352537e047fafaffc78ef71b796978290a..8b4add952a34baef9725d644ba72b4094b8f9029 100644
--- a/development/connect-kaiwudb/java/connect-jdbc.md
+++ b/development/connect-kaiwudb/java/connect-jdbc.md
@@ -272,7 +272,7 @@ while(resultSet.next()){
 
 | SQL       | JDBC                 | 关系引擎支持 | 时序引擎支持 |
 |-----------|----------------------|-------------|-------------|
-| BIT       | java.lang.Boolean    | 是           | 否           |
+| BIT       | java.lang.String    | 是           | 否           |
 | BOOL      | java.lang.Boolean    | 是           | 是           |
 | SMALLINT  | java.lang.Integer    | 是           | 是           |
 | INTEGER   | java.lang.Integer    | 是           | 是           |
diff --git a/en/development/connect-kaiwudb/java/connect-jdbc.md b/en/development/connect-kaiwudb/java/connect-jdbc.md
index e63525ead2763f6d181f2f294530f3a7661807c7..751b78e629a22e321b92023f68386c938bc0baba 100644
--- a/en/development/connect-kaiwudb/java/connect-jdbc.md
+++ b/en/development/connect-kaiwudb/java/connect-jdbc.md
@@ -7,9 +7,9 @@ id: connect-jdbc
 
 Java Database Connectivity (JDBC) is the standard API for accessing databases in Java applications. It provides a comprehensive set of interfaces that enable Java applications to interact with various database types.
 
-KWDB offers a JDBC driver that allows Java applications to connect to KWDB instances and perform operations such as querying, inserting, updating, and deleting data. The driver handles the conversion of Java data types to their corresponding JDBC types before sending them to the database. For more information on data type conversions, see [Supported Data Types](#supported-data-types).
+KaiwuDB JDBC driver is the official Java connector for KWDB. It allows Java applications to connect to KWDB instances and perform operations such as querying, inserting, updating, and deleting data. The driver handles the conversion of Java data types to their corresponding JDBC types before sending them to the database. For more information on data type conversions, see [Supported Data Types](#supported-data-types).
 
-KaiwuDB JDBC driver is the official Java connector for KWDB. Built on the PgJDBC extension, it complies with JDBC 4.0, 4.1, and 4.2 specifications. Java developers can use this driver to communicate with KWDB and access tabular data. The operation process is as follows:
+Built on the PgJDBC extension, KaiwuDB JDBC driver complies with JDBC 4.0, 4.1, and 4.2 specifications. Java developers can use this driver to communicate with KWDB and access tabular data. The operation process is as follows:
 
 1. Connect to the data source and establish a database connection
 2. Create query or update commands
@@ -273,28 +273,29 @@ The following table lists the mapping between SQL and JDBC data types:
 
 | SQL       | JDBC | Relational Engine | Time Series Engine |
 |-----------|-------------------------------------|---------------------------|---------------------------|
-| BIT       | java.lang.Boolean                   | Yes                       | No                        |
-| BOOL      | java.lang.Boolean                   | Yes                       | Yes                       |
-| TIMESTAMP | java.sql.Timestamp                  | Yes                       | Yes                       |
-| DATE      | java.sql.Date                       | Yes                       | No                        |
-| TIME      | java.sql.Time                       | Yes                       | No                        |
-| NUMERIC   | Java.math.BigDecimal                | Yes                       | No                        |
-| INTEGER   | java.lang.Integer                   | Yes                       | Yes                       |
-| BIGINT    | java.lang.Long                      | Yes                       | Yes                       |
-| FLOAT     | java.lang.Float                     | Yes                       | Yes                       |
-| DOUBLE    | java.lang.Double                    | Yes                       | Yes                       |
-| SMALLINT  | java.lang.Short                     | Yes                       | Yes                       |
-| TINYINT   | java.lang.Byte                      | Yes                       | No                        |
-| REAL      | java.lang.Float                     | Yes                       | Yes                       |
-| BYTES     | [B                                  | Yes                       | Yes                       |
-| VARBYTES  | [B                                  | Yes                       | Yes                       |
-| CHAR      | java.lang.String                    | Yes                       | Yes                       |
-| NCHAR     | java.lang.String                    | Yes                       | Yes                       |
-| VARCHAR   | java.lang.String                    | Yes                       | Yes                       |
-| NVARCHAR  | java.lang.String                    | Yes                       | Yes                       |
-| ARRAY     | java.sql.Array                      | Yes                       | No                        |
-| BLOB      | java.sql.Blob                       | Yes                       | No                        |
-| CLOB      | java.sql.Clob                       | No                        | No                        |
+| BIT       | java.lang.String    | Yes           | No           |
+| BOOL      | java.lang.Boolean    | Yes           | Yes           |
+| SMALLINT  | java.lang.Integer    | Yes           | Yes           |
+| INTEGER   | java.lang.Integer    | Yes           | Yes           |
+| BIGINT    | java.lang.Long       | Yes           | Yes           |
+| REAL      | java.lang.Float      | Yes           | Yes           |
+| DOUBLE    | java.lang.Double     | Yes           | Yes           |
+| DECIMAL   | java.math.BigDecimal | Yes           | No           |
+| DATE      | java.sql.Date        | Yes           | No           |
+| TIME      | java.sql.Time        | Yes           | No           |
+| TIMESTAMP | java.sql.Timestamp   | Yes           | Yes           |
+| CHAR      | java.lang.String     | Yes           | Yes           |
+| VARCHAR   | java.lang.String     | Yes           | Yes           |
+| NCHAR     | java.lang.String     | Yes           | Yes           |
+| NVARCHAR  | java.lang.String     | Yes           | Yes           |
+| BYTES     | byte[] ([B)          | Yes           | No           |
+| VARBYTES  | byte[] ([B)          | Yes           | Yes           |
+| BLOB      | byte[] ([B)          | Yes           | No           |
+| CLOB      | java.lang.String     | Yes           | No           |
+| JSON      | com.kaiwudb.util.KWobject | Yes      | No           |
+| GEOMETRY  | java.lang.String     | No           | Yes           |
+| ARRAY     | java.sql.Array       | Yes           | No           |
+
 
 ### Exception Handling