diff --git a/private/i18n.ts b/private/i18n.ts
index 6d9294b..a36b80e 100644
--- a/private/i18n.ts
+++ b/private/i18n.ts
@@ -305,4 +305,5 @@ export default {
     'Dec-Dcm_Socket_Unable_Connect_Tip': '可能出现编辑冲突',
     'Dec-Connection_Lic_Limit_Approach_Tip': '当前数据连接数量超过注册lic限制（{}个），所有数据连接都不可用，请删除多余的数据连接',
     'Dec-Connection_Lic_Limit_Approach_Prevent_Tip': '当前数据连接数量已经达到注册lic限制（{}个），无法新增',
+    'Dec-Dcm_Connection_Check_Fetch_Size_Range': '请输入0-1000000之间的值',
 };
diff --git a/src/modules/constants/constant.ts b/src/modules/constants/constant.ts
index ba6a849..c519031 100644
--- a/src/modules/constants/constant.ts
+++ b/src/modules/constants/constant.ts
@@ -19,17 +19,17 @@ export const DATEBASE_FILTER_TYPE = {
 };
 
 export const DATA_BASE_TYPES_OTHER =
-{
-    text: OTHER_JDBC,
-    databaseType: OTHER_JDBC,
-    driver: '',
-    url: '',
-    commonly: false,
-    internal: false,
-    type: 'jdbc',
-    hasSchema: true,
-    kerberos: false,
-};
+    {
+        text: OTHER_JDBC,
+        databaseType: OTHER_JDBC,
+        driver: '',
+        url: '',
+        commonly: false,
+        internal: false,
+        type: 'jdbc',
+        hasSchema: true,
+        kerberos: false,
+    };
 export const DATA_BASE_DRIVER_LINK = DecCst && DecCst.Hyperlink ? [
     {
         databaseType: 'ads',
@@ -444,6 +444,7 @@ export const DATA_BASE_TYPES = [
         type: 'jdbc',
         hasSchema: true,
         kerberos: false,
+        fetchSize: 50,
     }, {
         text: 'INFORMIX',
         databaseType: 'informix',
@@ -521,6 +522,7 @@ export const DATA_BASE_TYPES = [
         type: 'jdbc',
         hasSchema: true,
         kerberos: false,
+        fetchSize: 128,
     },
     {
         text: 'Pivotal Greenplum Database',
@@ -547,6 +549,7 @@ export const DATA_BASE_TYPES = [
         type: 'jdbc',
         hasSchema: true,
         kerberos: false,
+        fetchSize: 10000,
     }, {
         text: 'Presto',
         databaseType: 'presto',
@@ -648,7 +651,6 @@ export const DATA_BASE_TYPES = [
 ];
 
 
-
 export const CONNECT_CHARSET = [
     {
         text: BI.i18nText('Dec-Dcm_Connection_Form_Auto'),
@@ -740,10 +742,10 @@ export const CONNECTION_LAYOUT = {
 
 export const JNDI_FACTORYS = [
     {
-        factory:'',
+        factory: '',
         url: '',
     }, {
-        factory:'weblogic.jndi.WLInitialContextFactory',
+        factory: 'weblogic.jndi.WLInitialContextFactory',
         url: 't3://localhost:7001',
     }, {
         factory: 'com.ibm.websphere.naming.WsnInitialContextFactory',
diff --git a/src/modules/crud/crud.typings.d.ts b/src/modules/crud/crud.typings.d.ts
index 2d56028..bdbf770 100644
--- a/src/modules/crud/crud.typings.d.ts
+++ b/src/modules/crud/crud.typings.d.ts
@@ -108,6 +108,10 @@ export interface ConnectionJDBC {
      * 秘钥路径
      */
     keyPath?: string;
+    /**
+     * fetchSize
+     */
+    fetchSize?: string;
 
     connectionPoolAttr: ConnectionPoolJDBC;
 }
diff --git a/src/modules/pages/connection/connection.model.ts b/src/modules/pages/connection/connection.model.ts
index 5874bdf..bdea196 100644
--- a/src/modules/pages/connection/connection.model.ts
+++ b/src/modules/pages/connection/connection.model.ts
@@ -30,7 +30,7 @@ export class ConnectionModel extends Model<{
 
     childContext: ['connectionLicInfo'];
 
-    context = <const>['pageIndex', 'connectionSelected', 'connectionSelectedOne', 'datebaseTypeSelected', 'connectionLicInfo'];
+    context = <const>['pageIndex', 'connectionSelected', 'connectionSelectedOne', 'datebaseTypeSelected'];
 
     actions = {
         initConnectionLicInfo: (cb: Function) => {
diff --git a/src/modules/pages/connection/connection_jdbc/connection_jdbc.ts b/src/modules/pages/connection/connection_jdbc/connection_jdbc.ts
index 9e205aa..3c35f03 100644
--- a/src/modules/pages/connection/connection_jdbc/connection_jdbc.ts
+++ b/src/modules/pages/connection/connection_jdbc/connection_jdbc.ts
@@ -19,9 +19,20 @@ export class ConnectionJdbc extends BI.Widget {
     model: ConnectionJdecModel['model'];
     allDatabaseTypes = getAllDatabaseTypes();
 
-    render () {
+    render() {
         const connectionData = this.model.connectionSelectedOne.connectionData as ConnectionJDBC;
-        const { driver, database, user, originalCharsetName, schema, connectionPoolAttr, authType, principal, url } = connectionData;
+        const {
+            driver,
+            database,
+            user,
+            originalCharsetName,
+            schema,
+            connectionPoolAttr,
+            authType,
+            principal,
+            url,
+            fetchSize,
+        } = connectionData;
         const databaseType = getJdbcDatabaseType(database, driver);
         const { host, port, databaseName } = resolveUrlInfo(url, database);
         const { hgap, vgap } = CONNECTION_LAYOUT;
@@ -169,6 +180,10 @@ export class ConnectionJdbc extends BI.Widget {
                             name: BI.i18nText('Dec-Dcm_Connection_Form_Database_Min_Evictable_Idle_Time_Millis'),
                             value: connectionPoolAttr.minEvictableIdleTimeMillis,
                             unit: BI.i18nText('BI-Basic_Seconds'),
+                        }, {
+                            type: FormItem.xtype,
+                            name: 'Fetchsize',
+                            value: fetchSize,
                         },
                     ],
                 },
diff --git a/src/modules/pages/connection/connection_jndi/connection_jndi.ts b/src/modules/pages/connection/connection_jndi/connection_jndi.ts
index 1db4a3b..874120a 100644
--- a/src/modules/pages/connection/connection_jndi/connection_jndi.ts
+++ b/src/modules/pages/connection/connection_jndi/connection_jndi.ts
@@ -19,7 +19,7 @@ export class ConnectionJndi extends BI.Widget {
         const connectionData = this.model.connectionSelectedOne.connectionData as ConnectionJNDI;
         const { jndiName, contextHashtable, originalCharsetName } = connectionData;
         const { hgap, vgap } = CONNECTION_LAYOUT;
-        
+
         return {
             type: BI.VerticalLayout.xtype,
             $testId: 'dec-dcm-connection-jndi',
diff --git a/src/modules/pages/connection/list/list_item/list_item.model.ts b/src/modules/pages/connection/list/list_item/list_item.model.ts
index f23de66..f43abb5 100644
--- a/src/modules/pages/connection/list/list_item/list_item.model.ts
+++ b/src/modules/pages/connection/list/list_item/list_item.model.ts
@@ -4,13 +4,11 @@ import { ApiFactory } from '../../../../crud/apiFactory';
 import { ResultType } from '../../../../crud/crud.typings';
 import { getChartLength } from '../../../../app.service';
 import { NAME_MAX_LENGTH } from '../../../../app.constant';
-import { PAGE_INDEX } from '@constants/constant';
-
 const api = new ApiFactory().create();
 
 @model()
 export class ListItemModel extends Model<{
-    types: {
+    types : {
         connectionSelected: AppModel['TYPE']['connectionSelected'];
         connectionSelectedOne: AppModel['TYPE']['connectionSelectedOne'];
         datebaseTypeSelectedOne: AppModel['TYPE']['datebaseTypeSelectedOne'];
@@ -23,7 +21,7 @@ export class ListItemModel extends Model<{
 }> {
     static xtype = 'dec.dcm.model.connection.list_item';
 
-    context = <const>['connectionSelected', 'connections', 'pageIndex', 'datebaseTypeSelectedOne', 'connectionSelectedOne', 'datebaseTypeSelected', 'isCopy', 'connectionLicInfo'];
+    context = <const>['connectionSelected', 'connections', 'pageIndex', 'datebaseTypeSelectedOne', 'connectionSelectedOne', 'datebaseTypeSelected', 'isCopy'];
 
     state() {
         return {
@@ -54,12 +52,10 @@ export class ListItemModel extends Model<{
         },
         setIsEdit: (isEdit: boolean, name: string) => {
             if (isEdit) {
-                api.getConnectionStatus(name)
-                    .then(re => {
-                        this.model.isEdit = true;
-                    })
-                    .catch(() => {
-                    });
+                api.getConnectionStatus(name).then(re => {
+                    this.model.isEdit = true;
+                })
+                    .catch(() => {});
             } else {
                 api.shutdownConnectionStatus(name);
                 this.model.isEdit = false;
@@ -73,10 +69,7 @@ export class ListItemModel extends Model<{
             }
             if (getChartLength(newName) > NAME_MAX_LENGTH) {
                 return new Promise(resolve => {
-                    resolve({
-                        errorCode: '1',
-                        errorMsg: BI.i18nText('Dec-Dcm_Connection_Cannot_Too_Lang', NAME_MAX_LENGTH),
-                    });
+                    resolve({ errorCode: '1', errorMsg: BI.i18nText('Dec-Dcm_Connection_Cannot_Too_Lang', NAME_MAX_LENGTH) });
                 });
             }
             const hasNamed = this.model.connections.some(item => item.connectionName === newName);
@@ -90,49 +83,30 @@ export class ListItemModel extends Model<{
             connection.connectionName = newName;
 
 
-            return api.updateConnection(connection)
-                .then(re => {
-                    if (!re.errorCode) {
-                        this.model.connections = this.model.connections.map(item => {
-                            return {
-                                ...item,
-                                connectionName: item.connectionName === oldName ? newName : item.connectionName,
-                                connectionId: item.connectionName === oldName ? newName : item.connectionName,
-                            };
-                        });
-                        if (this.model.connectionSelected === oldName) {
-                            this.model.connectionSelected = newName;
-                        }
+            return api.updateConnection(connection).then(re => {
+                if (!re.errorCode) {
+                    this.model.connections = this.model.connections.map(item => {
+                        return {
+                            ...item,
+                            connectionName: item.connectionName === oldName ? newName : item.connectionName,
+                            connectionId: item.connectionName === oldName ? newName : item.connectionName,
+                        };
+                    });
+                    if (this.model.connectionSelected === oldName) {
+                        this.model.connectionSelected = newName;
                     }
+                }
 
-                    return re;
-                });
-        },
-        copyConnection(connectionName) {
-            if (this.model.connectionLicInfo.currentConnectionNum >= this.model.connectionLicInfo.maxConnectionNum) {
-                BI.Services.getService('dec.service.component.icon_text.msg').alert({
-                    text: BI.i18nText('Dec-Connection_Lic_Limit_Approach_Prevent_Tip', this.model.connectionLicInfo.maxConnectionNum),
-                });
-
-                return;
-            }
-            this.setConnectionSelected(connectionName);
-            this.setIsCopy(true);
-            this.setPageIndex(PAGE_INDEX.MAINTAIN);
+                return re;
+            });
         },
         setIsCopy: (isCopy: boolean) => {
             this.model.isCopy = isCopy;
         },
         isDriverError: (errorCode: string) => api.isDriverError(errorCode),
-    };
-
+    }
     removeConnection(name: string) {
-        api.deleteConnection(name)
-            .then(re => {
-                this.model.connectionLicInfo.currentConnectionNum -= 1;
-
-                return api.getConnectionList();
-            })
+        api.deleteConnection(name).then(re => api.getConnectionList())
             .then(connections => {
                 this.model.connections = connections.data;
                 this.model.connections.forEach(item => {
diff --git a/src/modules/pages/maintain/forms/components/form.jdbc.ts b/src/modules/pages/maintain/forms/components/form.jdbc.ts
index b00d993..3c69a47 100644
--- a/src/modules/pages/maintain/forms/components/form.jdbc.ts
+++ b/src/modules/pages/maintain/forms/components/form.jdbc.ts
@@ -1,12 +1,12 @@
-import {shortcut} from '@core/core';
-import {Collapse, EVENT_CHANGE} from 'src/modules/components/collapse/collapse';
-import {FormItem} from '../../components/form_item/form_item';
-import {Connection, ConnectionJDBC, ConnectionPoolJDBC} from 'src/modules/crud/crud.typings';
-import {connectionType} from '@constants/env';
-import {CONNECT_CHARSET, CONNECTION_LAYOUT, INT_MAX_VALUE, INT_MIN_VALUE} from '@constants/constant';
-import {getAllDatabaseTypes, getJdbcDatabaseType, resolveUrlInfo, splitUrl} from '../../../../app.service';
-import {TextChecker} from '../../../../components/text_checker/text_checker';
-import {ApiFactory} from 'src/modules/crud/apiFactory';
+import { shortcut } from '@core/core';
+import { Collapse, EVENT_CHANGE } from 'src/modules/components/collapse/collapse';
+import { FormItem } from '../../components/form_item/form_item';
+import { Connection, ConnectionJDBC, ConnectionPoolJDBC } from 'src/modules/crud/crud.typings';
+import { connectionType } from '@constants/env';
+import { CONNECT_CHARSET, CONNECTION_LAYOUT, INT_MAX_VALUE, INT_MIN_VALUE } from '@constants/constant';
+import { getAllDatabaseTypes, getJdbcDatabaseType, resolveUrlInfo, splitUrl } from '../../../../app.service';
+import { TextChecker } from '../../../../components/text_checker/text_checker';
+import { ApiFactory } from 'src/modules/crud/apiFactory';
 import {
     Editor,
     EditorIconCheckCombo,
@@ -14,7 +14,7 @@ import {
     TextAreaEditor,
     TextEditor,
     TextValueCombo,
-    VerticalLayout
+    VerticalLayout,
 } from '@fui/core';
 
 const api = new ApiFactory().create();
@@ -25,7 +25,7 @@ export class FormJdbc extends BI.Widget {
 
     props = {
         formData: {} as Connection,
-    }
+    };
 
     oldPassword = '';
     allDatabaseTypes = getAllDatabaseTypes();
@@ -63,10 +63,11 @@ export class FormJdbc extends BI.Widget {
         numTestsPerEvictionRun: null,
         minIdle: null,
         minEvictableIdleTimeMillis: null,
+        fetchSize: null,
     };
 
     render() {
-        const {connectionName, connectionData} = this.options.formData;
+        const { connectionName, connectionData } = this.options.formData;
         const {
             driver,
             user,
@@ -78,7 +79,8 @@ export class FormJdbc extends BI.Widget {
             database,
             authType,
             principal,
-            keyPath
+            keyPath,
+            fetchSize,
         } = connectionData as ConnectionJDBC;
         const {
             initialSize,
@@ -92,12 +94,12 @@ export class FormJdbc extends BI.Widget {
             timeBetweenEvictionRunsMillis,
             numTestsPerEvictionRun,
             minIdle,
-            minEvictableIdleTimeMillis
+            minEvictableIdleTimeMillis,
         } = connectionPoolAttr as ConnectionPoolJDBC;
         const databaseType = getJdbcDatabaseType(database, driver);
         this.oldPassword = password;
-        const {host, port, databaseName} = resolveUrlInfo(url, database);
-        const {hgap, vgap} = CONNECTION_LAYOUT;
+        const { host, port, databaseName } = resolveUrlInfo(url, database);
+        const { hgap, vgap } = CONNECTION_LAYOUT;
 
         const valueRangeConfig = {
             errorText: BI.i18nText('Dec-Dcm_Connection_Value_Out_Range'),
@@ -394,7 +396,7 @@ export class FormJdbc extends BI.Widget {
                             vgap: 15,
                             disabled: true,
                             value: schema,
-                            items: schema ? [{text: schema, value: schema}] : [],
+                            items: schema ? [{ text: schema, value: schema }] : [],
                             ref: (_ref: TextValueCombo) => {
                                 this.form.schema = _ref;
                             },
@@ -702,6 +704,37 @@ export class FormJdbc extends BI.Widget {
                                     text: BI.i18nText('BI-Basic_Seconds'),
                                 },
                             ],
+                        }, {
+                            el: {
+                                type: BI.VerticalLayout.xtype,
+                                cls: 'bi-border-top',
+                                invisible: BI.parseInt(fetchSize) < 0,
+                                items: [
+                                    {
+                                        el: {
+                                            type: FormItem.xtype,
+                                            name: 'Fetchsize',
+                                            forms: [{
+                                                type: TextChecker.xtype,
+                                                $value: 'fetch-size',
+                                                width: 300,
+                                                allowBlank: true,
+                                                value: fetchSize,
+                                                watermark: 'Fetchsize',
+                                                validationChecker: [{
+                                                    errorText: BI.i18nText('Dec-Dcm_Connection_Check_Fetch_Size_Range'),
+                                                    checker: (value: string) => BI.isInteger(value) && BI.parseInt(value) >= 0 && BI.parseInt(value) <= 1000000,
+                                                    autoFix: true,
+                                                }],
+                                                ref: (_ref: TextChecker) => {
+                                                    this.form.fetchSize = _ref;
+                                                },
+                                            }],
+                                        },
+                                        vgap: 15,
+                                    },
+                                ],
+                            },
                         },
                     ],
                 },
@@ -767,7 +800,7 @@ export class FormJdbc extends BI.Widget {
     }
 
     private onHostPortChange(databaseType) {
-        const {urls, url} = databaseType;
+        const { urls, url } = databaseType;
         const driver = this.form.driver.getValue();
         const selectUrl = BI.get(urls, driver) || url;
         const host = this.form.host.getValue();