diff --git a/chat2db-client/src/blocks/DatabaseTableEditor/ColumnList/index.tsx b/chat2db-client/src/blocks/DatabaseTableEditor/ColumnList/index.tsx
index b46633a4..ad6b6718 100644
--- a/chat2db-client/src/blocks/DatabaseTableEditor/ColumnList/index.tsx
+++ b/chat2db-client/src/blocks/DatabaseTableEditor/ColumnList/index.tsx
@@ -503,18 +503,7 @@ const ColumnList = forwardRef((props: IProps, ref: ForwardedRef<IColumnListRef>)
         )}
         {editingConfig?.supportDefaultValue && (
           <Form.Item labelCol={labelCol} label={i18n('editTable.label.defaultValue')} name="defaultValue">
-            <CustomSelect
-              options={[
-                {
-                  label: 'EMPTY_STRING',
-                  value: 'EMPTY_STRING',
-                },
-                {
-                  label: 'NULL',
-                  value: 'NULL',
-                },
-              ]}
-            />
+            <CustomSelect options={databaseSupportField.defaultValues} />
           </Form.Item>
         )}
         {editingConfig?.supportCharset && (
diff --git a/chat2db-client/src/blocks/DatabaseTableEditor/index.tsx b/chat2db-client/src/blocks/DatabaseTableEditor/index.tsx
index 8da03ecf..4638b394 100644
--- a/chat2db-client/src/blocks/DatabaseTableEditor/index.tsx
+++ b/chat2db-client/src/blocks/DatabaseTableEditor/index.tsx
@@ -54,6 +54,7 @@ export interface IDatabaseSupportField {
   charsets: IOption[];
   collations: IOption[];
   indexTypes: IOption[];
+  defaultValues: IOption[];
 }
 
 export default memo((props: IProps) => {
@@ -93,6 +94,7 @@ export default memo((props: IProps) => {
     charsets: [],
     collations: [],
     indexTypes: [],
+    defaultValues: [],
   });
   const [isLoading, setIsLoading] = useState<boolean>(false);
 
@@ -148,11 +150,20 @@ export default memo((props: IProps) => {
             };
           }) || [];
 
+        const defaultValues =
+            res?.defaultValues?.map((i) => {
+              return {
+                value: i.defaultValue,
+                label: i.defaultValue,
+              };
+            }) || [];
+
         setDatabaseSupportField({
           columnTypes,
           charsets,
           collations,
           indexTypes,
+          defaultValues,
         });
       });
   }
diff --git a/chat2db-client/src/typings/database.ts b/chat2db-client/src/typings/database.ts
index b1760429..a99ff117 100644
--- a/chat2db-client/src/typings/database.ts
+++ b/chat2db-client/src/typings/database.ts
@@ -51,6 +51,7 @@ export interface IDatabaseSupportField {
   charsets: ICharset[];
   collations: ICollation[];
   indexTypes: IIndexTypes[];
+  defaultValues: IDefaultValue[];
 }
 
 /** 字段所对应的 字符集*/
@@ -84,3 +85,8 @@ export interface IColumnTypes {
   supportValue: boolean; // 是否支持值
   supportUnit: boolean; // 是否支持单位
 }
+
+/** 不同数据库支持不同的默认值 */
+export interface IDefaultValue {
+  defaultValue: string; // 默认值
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-db2/src/main/java/ai/chat2db/plugin/db2/DB2MetaData.java b/chat2db-server/chat2db-plugins/chat2db-db2/src/main/java/ai/chat2db/plugin/db2/DB2MetaData.java
index f4770908..90a0e2fa 100644
--- a/chat2db-server/chat2db-plugins/chat2db-db2/src/main/java/ai/chat2db/plugin/db2/DB2MetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-db2/src/main/java/ai/chat2db/plugin/db2/DB2MetaData.java
@@ -8,6 +8,7 @@ import java.util.stream.Collectors;
 
 import ai.chat2db.plugin.db2.builder.DB2SqlBuilder;
 import ai.chat2db.plugin.db2.type.DB2ColumnTypeEnum;
+import ai.chat2db.plugin.db2.type.DB2DefaultValueEnum;
 import ai.chat2db.plugin.db2.type.DB2IndexTypeEnum;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
@@ -152,6 +153,7 @@ public class DB2MetaData extends DefaultMetaService implements MetaData {
                 .charsets(Lists.newArrayList())
                 .collations(Lists.newArrayList())
                 .indexTypes(DB2IndexTypeEnum.getIndexTypes())
+                .defaultValues(DB2DefaultValueEnum.getDefaultValues())
                 .build();
     }
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-db2/src/main/java/ai/chat2db/plugin/db2/type/DB2DefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-db2/src/main/java/ai/chat2db/plugin/db2/type/DB2DefaultValueEnum.java
new file mode 100644
index 00000000..01af0c14
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-db2/src/main/java/ai/chat2db/plugin/db2/type/DB2DefaultValueEnum.java
@@ -0,0 +1,27 @@
+package ai.chat2db.plugin.db2.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum DB2DefaultValueEnum {
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    ;
+    private DefaultValue defaultValue;
+
+    DB2DefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(DB2DefaultValueEnum.values()).map(DB2DefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-dm/src/main/java/ai/chat2db/plugin/dm/DMMetaData.java b/chat2db-server/chat2db-plugins/chat2db-dm/src/main/java/ai/chat2db/plugin/dm/DMMetaData.java
index d5b750a0..a5d2ed0b 100644
--- a/chat2db-server/chat2db-plugins/chat2db-dm/src/main/java/ai/chat2db/plugin/dm/DMMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-dm/src/main/java/ai/chat2db/plugin/dm/DMMetaData.java
@@ -8,6 +8,7 @@ import java.util.stream.Collectors;
 
 import ai.chat2db.plugin.dm.builder.DMSqlBuilder;
 import ai.chat2db.plugin.dm.type.DMColumnTypeEnum;
+import ai.chat2db.plugin.dm.type.DMDefaultValueEnum;
 import ai.chat2db.plugin.dm.type.DMIndexTypeEnum;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
@@ -218,6 +219,7 @@ public class DMMetaData extends DefaultMetaService implements MetaData {
                 .charsets(Lists.newArrayList())
                 .collations(Lists.newArrayList())
                 .indexTypes(DMIndexTypeEnum.getIndexTypes())
+                .defaultValues(DMDefaultValueEnum.getDefaultValues())
                 .build();
     }
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-dm/src/main/java/ai/chat2db/plugin/dm/type/DMDefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-dm/src/main/java/ai/chat2db/plugin/dm/type/DMDefaultValueEnum.java
new file mode 100644
index 00000000..f85773a8
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-dm/src/main/java/ai/chat2db/plugin/dm/type/DMDefaultValueEnum.java
@@ -0,0 +1,27 @@
+package ai.chat2db.plugin.dm.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum DMDefaultValueEnum {
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    ;
+    private DefaultValue defaultValue;
+
+    DMDefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(DMDefaultValueEnum.values()).map(DMDefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-kingbase/src/main/java/ai/chat2db/plugin/kingbase/KingBaseMetaData.java b/chat2db-server/chat2db-plugins/chat2db-kingbase/src/main/java/ai/chat2db/plugin/kingbase/KingBaseMetaData.java
index d23e549c..fbb51219 100644
--- a/chat2db-server/chat2db-plugins/chat2db-kingbase/src/main/java/ai/chat2db/plugin/kingbase/KingBaseMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-kingbase/src/main/java/ai/chat2db/plugin/kingbase/KingBaseMetaData.java
@@ -2,6 +2,7 @@ package ai.chat2db.plugin.kingbase;
 
 import ai.chat2db.plugin.kingbase.builder.KingBaseSqlBuilder;
 import ai.chat2db.plugin.kingbase.type.KingBaseColumnTypeEnum;
+import ai.chat2db.plugin.kingbase.type.KingBaseDefaultValueEnum;
 import ai.chat2db.plugin.kingbase.type.KingBaseIndexTypeEnum;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
@@ -196,6 +197,7 @@ public class KingBaseMetaData extends DefaultMetaService implements MetaData {
                 //.charsets(PostgreSQLCharsetEnum.getCharsets())
                 //.collations(PostgreSQLCollationEnum.getCollations())
                 .indexTypes(KingBaseIndexTypeEnum.getIndexTypes())
+                .defaultValues(KingBaseDefaultValueEnum.getDefaultValues())
                 .build();
     }
     @Override
diff --git a/chat2db-server/chat2db-plugins/chat2db-kingbase/src/main/java/ai/chat2db/plugin/kingbase/type/KingBaseDefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-kingbase/src/main/java/ai/chat2db/plugin/kingbase/type/KingBaseDefaultValueEnum.java
new file mode 100644
index 00000000..cb6c5884
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-kingbase/src/main/java/ai/chat2db/plugin/kingbase/type/KingBaseDefaultValueEnum.java
@@ -0,0 +1,27 @@
+package ai.chat2db.plugin.kingbase.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum KingBaseDefaultValueEnum {
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    ;
+    private DefaultValue defaultValue;
+
+    KingBaseDefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(KingBaseDefaultValueEnum.values()).map(KingBaseDefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/MysqlMetaData.java b/chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/MysqlMetaData.java
index 96489b6d..40a29195 100644
--- a/chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/MysqlMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/MysqlMetaData.java
@@ -8,10 +8,7 @@ import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 import ai.chat2db.plugin.mysql.builder.MysqlSqlBuilder;
-import ai.chat2db.plugin.mysql.type.MysqlCharsetEnum;
-import ai.chat2db.plugin.mysql.type.MysqlCollationEnum;
-import ai.chat2db.plugin.mysql.type.MysqlColumnTypeEnum;
-import ai.chat2db.plugin.mysql.type.MysqlIndexTypeEnum;
+import ai.chat2db.plugin.mysql.type.*;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
 import ai.chat2db.spi.ValueHandler;
@@ -287,6 +284,7 @@ public class MysqlMetaData extends DefaultMetaService implements MetaData {
                 .charsets(MysqlCharsetEnum.getCharsets())
                 .collations(MysqlCollationEnum.getCollations())
                 .indexTypes(MysqlIndexTypeEnum.getIndexTypes())
+                .defaultValues(MysqlDefaultValueEnum.getDefaultValues())
                 .build();
     }
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/type/MysqlDefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/type/MysqlDefaultValueEnum.java
new file mode 100644
index 00000000..b48e2c21
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-mysql/src/main/java/ai/chat2db/plugin/mysql/type/MysqlDefaultValueEnum.java
@@ -0,0 +1,29 @@
+package ai.chat2db.plugin.mysql.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum MysqlDefaultValueEnum {
+
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    CURRENT_TIMESTAMP("CURRENT_TIMESTAMP"),
+    ;
+    private DefaultValue defaultValue;
+
+    MysqlDefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(MysqlDefaultValueEnum.values()).map(MysqlDefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-oracle/src/main/java/ai/chat2db/plugin/oracle/OracleMetaData.java b/chat2db-server/chat2db-plugins/chat2db-oracle/src/main/java/ai/chat2db/plugin/oracle/OracleMetaData.java
index 6d5db543..9108b637 100644
--- a/chat2db-server/chat2db-plugins/chat2db-oracle/src/main/java/ai/chat2db/plugin/oracle/OracleMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-oracle/src/main/java/ai/chat2db/plugin/oracle/OracleMetaData.java
@@ -8,6 +8,7 @@ import java.util.stream.Collectors;
 
 import ai.chat2db.plugin.oracle.builder.OracleSqlBuilder;
 import ai.chat2db.plugin.oracle.type.OracleColumnTypeEnum;
+import ai.chat2db.plugin.oracle.type.OracleDefaultValueEnum;
 import ai.chat2db.plugin.oracle.type.OracleIndexTypeEnum;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
@@ -295,6 +296,7 @@ public class OracleMetaData extends DefaultMetaService implements MetaData {
                 .charsets(Lists.newArrayList())
                 .collations(Lists.newArrayList())
                 .indexTypes(OracleIndexTypeEnum.getIndexTypes())
+                .defaultValues(OracleDefaultValueEnum.getDefaultValues())
                 .build();
     }
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-oracle/src/main/java/ai/chat2db/plugin/oracle/type/OracleDefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-oracle/src/main/java/ai/chat2db/plugin/oracle/type/OracleDefaultValueEnum.java
new file mode 100644
index 00000000..473af5ed
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-oracle/src/main/java/ai/chat2db/plugin/oracle/type/OracleDefaultValueEnum.java
@@ -0,0 +1,28 @@
+package ai.chat2db.plugin.oracle.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum OracleDefaultValueEnum {
+
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    ;
+    private DefaultValue defaultValue;
+
+    OracleDefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(OracleDefaultValueEnum.values()).map(OracleDefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/PostgreSQLMetaData.java b/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/PostgreSQLMetaData.java
index 57efaa78..4d46c647 100644
--- a/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/PostgreSQLMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/PostgreSQLMetaData.java
@@ -7,10 +7,7 @@ import java.util.*;
 import java.util.stream.Collectors;
 
 import ai.chat2db.plugin.postgresql.builder.PostgreSQLSqlBuilder;
-import ai.chat2db.plugin.postgresql.type.PostgreSQLCharsetEnum;
-import ai.chat2db.plugin.postgresql.type.PostgreSQLCollationEnum;
-import ai.chat2db.plugin.postgresql.type.PostgreSQLColumnTypeEnum;
-import ai.chat2db.plugin.postgresql.type.PostgreSQLIndexTypeEnum;
+import ai.chat2db.plugin.postgresql.type.*;
 import ai.chat2db.server.tools.common.util.EasyCollectionUtils;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
@@ -301,6 +298,7 @@ public class PostgreSQLMetaData extends DefaultMetaService implements MetaData {
                 .charsets(PostgreSQLCharsetEnum.getCharsets())
                 .collations(PostgreSQLCollationEnum.getCollations())
                 .indexTypes(PostgreSQLIndexTypeEnum.getIndexTypes())
+                .defaultValues(PostgreSQLDefaultValueEnum.getDefaultValues())
                 .build();
     }
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/type/PostgreSQLDefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/type/PostgreSQLDefaultValueEnum.java
new file mode 100644
index 00000000..6d972883
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-postgresql/src/main/java/ai/chat2db/plugin/postgresql/type/PostgreSQLDefaultValueEnum.java
@@ -0,0 +1,27 @@
+package ai.chat2db.plugin.postgresql.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum PostgreSQLDefaultValueEnum {
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    ;
+    private DefaultValue defaultValue;
+
+    PostgreSQLDefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(PostgreSQLDefaultValueEnum.values()).map(PostgreSQLDefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/SqliteMetaData.java b/chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/SqliteMetaData.java
index 401137ae..f8bc1213 100644
--- a/chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/SqliteMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/SqliteMetaData.java
@@ -9,6 +9,7 @@ import java.util.stream.Collectors;
 import ai.chat2db.plugin.sqlite.builder.SqliteBuilder;
 import ai.chat2db.plugin.sqlite.type.SqliteCollationEnum;
 import ai.chat2db.plugin.sqlite.type.SqliteColumnTypeEnum;
+import ai.chat2db.plugin.sqlite.type.SqliteDefaultValueEnum;
 import ai.chat2db.plugin.sqlite.type.SqliteIndexTypeEnum;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
@@ -56,6 +57,7 @@ public class SqliteMetaData extends DefaultMetaService implements MetaData {
                 .charsets(null)
                 .collations(SqliteCollationEnum.getCollations())
                 .indexTypes(SqliteIndexTypeEnum.getIndexTypes())
+                .defaultValues(SqliteDefaultValueEnum.getDefaultValues())
                 .build();
     }
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/type/SqliteDefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/type/SqliteDefaultValueEnum.java
new file mode 100644
index 00000000..d713f29f
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-sqlite/src/main/java/ai/chat2db/plugin/sqlite/type/SqliteDefaultValueEnum.java
@@ -0,0 +1,27 @@
+package ai.chat2db.plugin.sqlite.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum SqliteDefaultValueEnum {
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    ;
+    private DefaultValue defaultValue;
+
+    SqliteDefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(SqliteDefaultValueEnum.values()).map(SqliteDefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-plugins/chat2db-sqlserver/src/main/java/ai/chat2db/plugin/sqlserver/SqlServerMetaData.java b/chat2db-server/chat2db-plugins/chat2db-sqlserver/src/main/java/ai/chat2db/plugin/sqlserver/SqlServerMetaData.java
index cc4b084b..7b2711cd 100644
--- a/chat2db-server/chat2db-plugins/chat2db-sqlserver/src/main/java/ai/chat2db/plugin/sqlserver/SqlServerMetaData.java
+++ b/chat2db-server/chat2db-plugins/chat2db-sqlserver/src/main/java/ai/chat2db/plugin/sqlserver/SqlServerMetaData.java
@@ -8,6 +8,7 @@ import java.util.stream.Collectors;
 
 import ai.chat2db.plugin.sqlserver.builder.SqlServerSqlBuilder;
 import ai.chat2db.plugin.sqlserver.type.SqlServerColumnTypeEnum;
+import ai.chat2db.plugin.sqlserver.type.SqlServerDefaultValueEnum;
 import ai.chat2db.plugin.sqlserver.type.SqlServerIndexTypeEnum;
 import ai.chat2db.spi.MetaData;
 import ai.chat2db.spi.SqlBuilder;
@@ -382,6 +383,7 @@ public class SqlServerMetaData extends DefaultMetaService implements MetaData {
                 .charsets(null)
                 .collations(null)
                 .indexTypes(SqlServerIndexTypeEnum.getIndexTypes())
+                .defaultValues(SqlServerDefaultValueEnum.getDefaultValues())
                 .build();
     }
 
diff --git a/chat2db-server/chat2db-plugins/chat2db-sqlserver/src/main/java/ai/chat2db/plugin/sqlserver/type/SqlServerDefaultValueEnum.java b/chat2db-server/chat2db-plugins/chat2db-sqlserver/src/main/java/ai/chat2db/plugin/sqlserver/type/SqlServerDefaultValueEnum.java
new file mode 100644
index 00000000..1589a672
--- /dev/null
+++ b/chat2db-server/chat2db-plugins/chat2db-sqlserver/src/main/java/ai/chat2db/plugin/sqlserver/type/SqlServerDefaultValueEnum.java
@@ -0,0 +1,27 @@
+package ai.chat2db.plugin.sqlserver.type;
+
+import ai.chat2db.spi.model.DefaultValue;
+
+import java.util.Arrays;
+import java.util.List;
+
+public enum SqlServerDefaultValueEnum {
+    EMPTY_STRING("EMPTY_STRING"),
+    NULL("NULL"),
+    ;
+    private DefaultValue defaultValue;
+
+    SqlServerDefaultValueEnum(String defaultValue) {
+        this.defaultValue = new DefaultValue(defaultValue);
+    }
+
+
+    public DefaultValue getDefaultValue() {
+        return defaultValue;
+    }
+
+    public static List<DefaultValue> getDefaultValues() {
+        return Arrays.stream(SqlServerDefaultValueEnum.values()).map(SqlServerDefaultValueEnum::getDefaultValue).collect(java.util.stream.Collectors.toList());
+    }
+
+}
diff --git a/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/ai/chat2db/client/Chat2dbAIClient.java b/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/ai/chat2db/client/Chat2dbAIClient.java
index b3db9845..a687d459 100644
--- a/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/ai/chat2db/client/Chat2dbAIClient.java
+++ b/chat2db-server/chat2db-server-web/chat2db-server-web-api/src/main/java/ai/chat2db/server/web/api/controller/ai/chat2db/client/Chat2dbAIClient.java
@@ -74,7 +74,10 @@ public class Chat2dbAIClient {
             apikey = ApplicationContextUtil.getProperty(CHAT2DB_OPENAI_KEY);
         }
         Config modelConfig = configService.find(CHAT2DB_OPENAI_MODEL).getData();
-        String model = modelConfig.getContent();
+        String model = "";
+        if (modelConfig != null) {
+            model = modelConfig.getContent();
+        }
         log.info("refresh chat2db apikey:{}", maskApiKey(apikey));
         CHAT2DB_AI_STREAM_CLIENT = Chat2DBAIStreamClient.builder().apiHost(apiHost)
                 .apiKey(apikey).model(model).build();
diff --git a/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/model/DefaultValue.java b/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/model/DefaultValue.java
new file mode 100644
index 00000000..dfffbf16
--- /dev/null
+++ b/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/model/DefaultValue.java
@@ -0,0 +1,12 @@
+package ai.chat2db.spi.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+@Data
+@AllArgsConstructor
+public class DefaultValue {
+
+    private String defaultValue;
+
+}
diff --git a/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/model/TableMeta.java b/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/model/TableMeta.java
index 82e9a5a9..6ae0c2d7 100644
--- a/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/model/TableMeta.java
+++ b/chat2db-server/chat2db-spi/src/main/java/ai/chat2db/spi/model/TableMeta.java
@@ -19,4 +19,6 @@ public class TableMeta {
 
 
     private List<IndexType> indexTypes;
+
+    private List<DefaultValue> defaultValues;
 }