diff --git a/webapp/packages/core-app/src/shared/InlineEditor/InlineEditor.tsx b/webapp/packages/core-app/src/shared/InlineEditor/InlineEditor.tsx
index 34a796d118..224aaba6f5 100644
--- a/webapp/packages/core-app/src/shared/InlineEditor/InlineEditor.tsx
+++ b/webapp/packages/core-app/src/shared/InlineEditor/InlineEditor.tsx
@@ -33,6 +33,7 @@ export interface InlineEditorProps {
   hideSave?: boolean;
   hideCancel?: boolean;
   edited?: boolean;
+  disabled?: boolean;
   autofocus?: boolean;
   onChange: (value: string) => void;
   onSave: () => void;
@@ -52,6 +53,7 @@ export const InlineEditor = observer(function InlineEditor({
   hideSave,
   hideCancel,
   edited = false,
+  disabled,
   autofocus,
   onChange,
   onSave,
@@ -103,6 +105,7 @@ export const InlineEditor = observer(function InlineEditor({
           tabIndex={tabIndex}
           placeholder={placeholder}
           autoComplete="off"
+          disabled={disabled}
           onChange={handleChange}
           onKeyDown={handleKeyDown}
         />
diff --git a/webapp/packages/core-blocks/src/index.ts b/webapp/packages/core-blocks/src/index.ts
index 693021b81d..7cb5134da0 100644
--- a/webapp/packages/core-blocks/src/index.ts
+++ b/webapp/packages/core-blocks/src/index.ts
@@ -48,6 +48,7 @@ export * from './StaticImage';
 export * from './TextPlaceholder';
 export * from './useClipboard';
 export * from './useFocus';
+export * from './useStateDelay';
 export * from './useErrorDetails';
 export * from './useAppLoadingScreen';
 export * from './BlocksLocaleService';
diff --git a/webapp/packages/core-blocks/src/useStateDelay.tsx b/webapp/packages/core-blocks/src/useStateDelay.tsx
index 9f0c400366..9ff685b7a8 100644
--- a/webapp/packages/core-blocks/src/useStateDelay.tsx
+++ b/webapp/packages/core-blocks/src/useStateDelay.tsx
@@ -14,16 +14,18 @@ export function useStateDelay(state: boolean, delay: number, callback?: () => vo
   callbackRef.current = callback;
 
   useEffect(() => {
-    if (!state) {
+    if (state === delayedState) {
       return;
     }
     const timerId = setTimeout(() => {
-      setState(true);
-      callbackRef.current?.();
+      setState(state);
+      if (state) {
+        callbackRef.current?.();
+      }
     }, delay);
 
     return () => clearTimeout(timerId);
-  }, [state, delay]);
+  }, [state, delayedState, delay]);
 
   return delayedState;
 }
diff --git a/webapp/packages/core-localization/src/locales/en.ts b/webapp/packages/core-localization/src/locales/en.ts
index e4faaeaa5e..6e1e3ee20f 100644
--- a/webapp/packages/core-localization/src/locales/en.ts
+++ b/webapp/packages/core-localization/src/locales/en.ts
@@ -14,6 +14,7 @@ export const defaultENLocale = [
   ['ui_processing_create', 'Create'],
   ['ui_processing_save', 'Save'],
   ['ui_error_message', 'Error:'],
+  ['ui_error_close', 'Close'],
   ['ui_errors_details', 'Details'],
   ['ui_search', 'Search...'],
   ['ui_delete', 'Delete'],
diff --git a/webapp/packages/core-localization/src/locales/ru.ts b/webapp/packages/core-localization/src/locales/ru.ts
index df817dc20a..4fabefd7f0 100644
--- a/webapp/packages/core-localization/src/locales/ru.ts
+++ b/webapp/packages/core-localization/src/locales/ru.ts
@@ -12,6 +12,7 @@ export const defaultRULocale = [
   ['ui_processing_create', 'Создать'],
   ['ui_processing_save', 'Сохранить'],
   ['ui_error_message', 'Ошибка:'],
+  ['ui_error_close', 'Закрыть'],
   ['ui_errors_details', 'Информация'],
   ['ui_search', 'Поиск...'],
   ['ui_delete', 'Удалить'],
diff --git a/webapp/packages/core-notifications/src/NotificationsItem/ErrorDetailsDialog/ErrorModel.ts b/webapp/packages/core-notifications/src/NotificationsItem/ErrorDetailsDialog/ErrorModel.ts
index df2b24f9f3..41f3a668b2 100644
--- a/webapp/packages/core-notifications/src/NotificationsItem/ErrorDetailsDialog/ErrorModel.ts
+++ b/webapp/packages/core-notifications/src/NotificationsItem/ErrorDetailsDialog/ErrorModel.ts
@@ -40,13 +40,13 @@ export class ErrorModel {
         });
 
       this.textToCopy = error.isTextBody
-        ? error.errorText
+        ? error.errorMessage
         : this.textToCopy = this.errors
           .map(error => `${error.message}\n${error.stackTrace}`)
           .join('------------------\n');
 
       if (error.isTextBody) {
-        this.htmlBody = error.errorText;
+        this.htmlBody = error.errorMessage;
       }
     } else if (error instanceof ServerInternalError) {
       this.errors = [
diff --git a/webapp/packages/core-sdk/src/DetailsError.ts b/webapp/packages/core-sdk/src/DetailsError.ts
new file mode 100644
index 0000000000..ffe6bc0016
--- /dev/null
+++ b/webapp/packages/core-sdk/src/DetailsError.ts
@@ -0,0 +1,18 @@
+/*
+ * cloudbeaver - Cloud Database Manager
+ * Copyright (C) 2020 DBeaver Corp and others
+ *
+ * Licensed under the Apache License, Version 2.0.
+ * you may not use this file except in compliance with the License.
+ */
+
+export abstract class DetailsError extends Error {
+  errorMessage: string;
+  constructor(message?: string) {
+    super(message);
+    this.name = 'Details Error';
+    this.errorMessage = message || 'Error';
+  }
+
+  abstract hasDetails(): boolean;
+}
diff --git a/webapp/packages/core-sdk/src/GQLError.ts b/webapp/packages/core-sdk/src/GQLError.ts
index 8f53dce696..d74889221b 100644
--- a/webapp/packages/core-sdk/src/GQLError.ts
+++ b/webapp/packages/core-sdk/src/GQLError.ts
@@ -11,10 +11,12 @@
 
 import type { GraphQLResponse, GraphQLRequestContext, ClientError } from 'graphql-request/dist/src/types';
 
-export class GQLError extends Error {
+import { DetailsError } from './DetailsError';
+
+export class GQLError extends DetailsError {
   response: GraphQLResponse;
   request: GraphQLRequestContext;
-  errorText: string;
+  errorMessage: string;
   errorCode?: string;
   isTextBody = false; // true when server returns not GQLError object but plain text or html error
 
@@ -25,9 +27,9 @@ export class GQLError extends Error {
     this.request = clientError.request;
     if (typeof clientError.response.error === 'string') {
       this.isTextBody = true;
-      this.errorText = clientError.response.error;
+      this.errorMessage = clientError.response.error;
     } else {
-      this.errorText = clientError.response.errors?.map(e => e.message).join('\n') || 'unknown error';
+      this.errorMessage = clientError.response.errors?.map(e => e.message).join('\n') || 'unknown error';
 
       const firstError = clientError.response.errors?.[0];
       this.errorCode = firstError?.extensions?.webErrorCode;
diff --git a/webapp/packages/core-sdk/src/GQLErrorCatcher.ts b/webapp/packages/core-sdk/src/GQLErrorCatcher.ts
index ce93181265..e31233cdad 100644
--- a/webapp/packages/core-sdk/src/GQLErrorCatcher.ts
+++ b/webapp/packages/core-sdk/src/GQLErrorCatcher.ts
@@ -8,12 +8,12 @@
 
 import { observable, action, makeObservable } from 'mobx';
 
-import { GQLError } from './GQLError';
+import { DetailsError } from './DetailsError';
 
 export class GQLErrorCatcher {
   hasDetails = false;
   responseMessage: string | null = null;
-  exception: GQLError | null = null;
+  exception: DetailsError | null = null;
 
   constructor() {
     makeObservable(this, {
@@ -26,8 +26,8 @@ export class GQLErrorCatcher {
   }
 
   catch(exception: any): boolean {
-    if (exception instanceof GQLError) {
-      this.responseMessage = exception.errorText;
+    if (exception instanceof DetailsError) {
+      this.responseMessage = exception.errorMessage;
       this.hasDetails = exception.hasDetails();
       this.exception = exception;
       return true;
diff --git a/webapp/packages/core-sdk/src/ServerInternalError.ts b/webapp/packages/core-sdk/src/ServerInternalError.ts
index 2564407e4d..8aaf9d7dd9 100644
--- a/webapp/packages/core-sdk/src/ServerInternalError.ts
+++ b/webapp/packages/core-sdk/src/ServerInternalError.ts
@@ -6,17 +6,23 @@
  * you may not use this file except in compliance with the License.
  */
 
+import { DetailsError } from './DetailsError';
 import type { ServerError } from './sdk';
 
-export class ServerInternalError extends Error implements ServerError {
+export class ServerInternalError extends DetailsError implements ServerError {
   readonly errorCode?: string;
   readonly stackTrace?: string;
   readonly causedBy?: ServerError;
 
   constructor(error: ServerError) {
     super(error.message);
+    this.name = 'Server Internal Error';
     this.errorCode = error.errorCode;
     this.stackTrace = error.stackTrace;
     this.causedBy = error.causedBy;
   }
+
+  hasDetails(): boolean {
+    return this.stackTrace !== undefined && this.stackTrace.length > 0;
+  }
 }
diff --git a/webapp/packages/core-sdk/src/getErrorDetails.ts b/webapp/packages/core-sdk/src/getErrorDetails.ts
index 0a55679dad..b39ffce102 100644
--- a/webapp/packages/core-sdk/src/getErrorDetails.ts
+++ b/webapp/packages/core-sdk/src/getErrorDetails.ts
@@ -6,8 +6,7 @@
  * you may not use this file except in compliance with the License.
  */
 
-import { GQLError } from './GQLError';
-import { ServerInternalError } from './ServerInternalError';
+import { DetailsError } from './DetailsError';
 
 export interface IErrorDetails {
   name: string;
@@ -15,12 +14,12 @@ export interface IErrorDetails {
   hasDetails: boolean;
 }
 
-export function hasDetails(error: Error): error is GQLError | ServerInternalError {
-  return error instanceof GQLError || error instanceof ServerInternalError;
+export function hasDetails(error: Error): error is DetailsError {
+  return error instanceof DetailsError && error.hasDetails();
 }
 
-export function getErrorDetails(error: Error | GQLError): IErrorDetails {
-  const exceptionMessage = hasDetails(error) ? error.errorText : error.message || error.name;
+export function getErrorDetails(error: Error | DetailsError): IErrorDetails {
+  const exceptionMessage = hasDetails(error) ? error.errorMessage : error.message || error.name;
   return {
     name: error.name,
     message: exceptionMessage,
diff --git a/webapp/packages/core-sdk/src/index.ts b/webapp/packages/core-sdk/src/index.ts
index 129c154e38..06d922ce7c 100644
--- a/webapp/packages/core-sdk/src/index.ts
+++ b/webapp/packages/core-sdk/src/index.ts
@@ -3,6 +3,7 @@ export * from './Resource/CachedMapResource';
 export * from './Resource/CachedResource';
 export * from './Resource/ResourceKeyList';
 export * from './CustomGraphQLClient';
+export * from './DetailsError';
 export * from './EnvironmentService';
 export * from './EServerErrorCode';
 export * from './getErrorDetails';
diff --git a/webapp/packages/core-utils/src/Promises/Deferred.ts b/webapp/packages/core-utils/src/Promises/Deferred.ts
index b1556a1362..50304ceacf 100644
--- a/webapp/packages/core-utils/src/Promises/Deferred.ts
+++ b/webapp/packages/core-utils/src/Promises/Deferred.ts
@@ -90,7 +90,7 @@ export class Deferred<T> {
   protected toCancelled(reason?: any): void {
     this.state = EDeferredState.CANCELLED;
     this.rejectionReason = reason;
-    this.promiseExecutor.reject(new PromiseCancelledError(reason));
+    this.promiseExecutor.reject(reason);
   }
 
   protected toCancelling(): void {
diff --git a/webapp/packages/plugin-connection-template/src/ConnectionDialog/ConnectionController.ts b/webapp/packages/plugin-connection-template/src/ConnectionDialog/ConnectionController.ts
index b033762044..17900c203a 100644
--- a/webapp/packages/plugin-connection-template/src/ConnectionDialog/ConnectionController.ts
+++ b/webapp/packages/plugin-connection-template/src/ConnectionDialog/ConnectionController.ts
@@ -15,7 +15,7 @@ import { injectable, IInitializableController, IDestructibleController } from '@
 import { CommonDialogService } from '@cloudbeaver/core-dialogs';
 import { NotificationService } from '@cloudbeaver/core-events';
 import { ErrorDetailsDialog } from '@cloudbeaver/core-notifications';
-import { GQLError, DatabaseAuthModel } from '@cloudbeaver/core-sdk';
+import { DatabaseAuthModel, DetailsError } from '@cloudbeaver/core-sdk';
 
 import { TemplateConnectionsResource } from '../TemplateConnectionsResource';
 
@@ -43,7 +43,7 @@ implements IInitializableController, IDestructibleController, IConnectionControl
   hasDetails = false;
   responseMessage: string | null = null;
 
-  private exception: GQLError | null = null;
+  private exception: DetailsError | null = null;
   private onClose!: () => void;
   private isDistructed = false;
 
@@ -152,8 +152,8 @@ implements IInitializableController, IDestructibleController, IConnectionControl
   }
 
   private showError(exception: Error, message: string) {
-    if (exception instanceof GQLError && !this.isDistructed) {
-      this.responseMessage = exception.errorText;
+    if (exception instanceof DetailsError && !this.isDistructed) {
+      this.responseMessage = exception.errorMessage;
       this.hasDetails = exception.hasDetails();
       this.exception = exception;
     } else {
diff --git a/webapp/packages/plugin-data-export/src/DataExportMenuService.ts b/webapp/packages/plugin-data-export/src/DataExportMenuService.ts
index b07b1d6f91..083b1df905 100644
--- a/webapp/packages/plugin-data-export/src/DataExportMenuService.ts
+++ b/webapp/packages/plugin-data-export/src/DataExportMenuService.ts
@@ -31,6 +31,9 @@ export class DataExportMenuService {
       isPresent(context) {
         return context.contextType === TableFooterMenuService.nodeContextType;
       },
+      isDisabled(context) {
+        return context.data.model.isLoading() || !context.data.model.getResult(context.data.resultIndex);
+      },
       order: 5,
       title: 'data_transfer_dialog_export',
       icon: 'table-export',
diff --git a/webapp/packages/plugin-data-viewer/src/FetchTableDataAsyncProcess.ts b/webapp/packages/plugin-data-viewer/src/FetchTableDataAsyncProcess.ts
index cd9eabc11e..64dceb814b 100644
--- a/webapp/packages/plugin-data-viewer/src/FetchTableDataAsyncProcess.ts
+++ b/webapp/packages/plugin-data-viewer/src/FetchTableDataAsyncProcess.ts
@@ -158,9 +158,7 @@ export class FetchTableDataAsyncProcess extends Deferred<SqlExecuteInfo> {
   private onError(error: Error, status?: string) {
     // if task failed to execute during cancelling - it means it was cancelled successfully
     if (this.getState() === EDeferredState.CANCELLING) {
-      this.toCancelled();
-      const message = `Data fetch has been canceled${status ? `: ${status}` : ''}`;
-      this.notificationService.logException(error, 'Data fetch Error', message);
+      this.toCancelled(error);
     } else {
       this.toRejected(error);
     }
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/DataModelWrapper.ts b/webapp/packages/plugin-data-viewer/src/TableViewer/DataModelWrapper.ts
index 2a4a973100..41da44b63d 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/DataModelWrapper.ts
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/DataModelWrapper.ts
@@ -10,11 +10,11 @@ import { observable, makeObservable } from 'mobx';
 
 import type { CommonDialogService } from '@cloudbeaver/core-dialogs';
 import { ErrorDetailsDialog } from '@cloudbeaver/core-notifications';
-import { GQLError } from '@cloudbeaver/core-sdk';
+import { DetailsError } from '@cloudbeaver/core-sdk';
 
 import type { IDataContainerOptions } from '../ContainerDataSource';
 import { DatabaseDataModel } from '../DatabaseDataModel/DatabaseDataModel';
-import type { DatabaseDataAccessMode } from '../DatabaseDataModel/IDatabaseDataModel';
+import { DatabaseDataAccessMode } from '../DatabaseDataModel/IDatabaseDataModel';
 import type { IDatabaseDataResult } from '../DatabaseDataModel/IDatabaseDataResult';
 import type { IDatabaseDataSource } from '../DatabaseDataModel/IDatabaseDataSource';
 import type { RowDiff } from './TableDataModel/EditedRow';
@@ -128,17 +128,34 @@ export class DataModelWrapper extends DatabaseDataModel<IDataContainerOptions, I
   async requestDataPortion(offset: number, count: number): Promise<void> {
     if (!this.isDataAvailable(offset, count)) {
       this.source.setSlice(offset, count);
-      this.results = await this.source.requestData(this.results);
-      await this.setDeprecatedModelData();
+      this.clearErrors();
+      try {
+        this.results = await this.source.requestData(this.results);
+        await this.setDeprecatedModelData();
+      } catch (exception) {
+        this.showError(exception);
+        throw exception;
+      }
     }
   }
 
+  /**
+   * @deprecated will be refactored
+   */
   showDetails = (): void => {
     if (this.exception) {
       this.commonDialogService.open(ErrorDetailsDialog, this.exception);
     }
   };
 
+  /**
+   * @deprecated will be refactored
+   */
+  clearErrors = (): void => {
+    this.errorMessage = '';
+    this.exception = null;
+  };
+
   async dispose(): Promise<void> {
     await this.source.dispose();
   }
@@ -199,14 +216,17 @@ export class DataModelWrapper extends DatabaseDataModel<IDataContainerOptions, I
       model.refresh();
       model.setColumns(result.data.columns);
       model.insertRows(0, result.data.rows, !result.loadedFully);
+      model.access = this.results.length > 1
+        ? DatabaseDataAccessMode.Readonly
+        : this.access;
     }
   }
 
   private showError(exception: any) {
     this.exception = null;
     this.hasDetails = false;
-    if (exception instanceof GQLError) {
-      this.errorMessage = exception.errorText;
+    if (exception instanceof DetailsError) {
+      this.errorMessage = exception.errorMessage;
       this.exception = exception;
       this.hasDetails = exception.hasDetails();
     } else {
@@ -214,11 +234,6 @@ export class DataModelWrapper extends DatabaseDataModel<IDataContainerOptions, I
     }
   }
 
-  private clearErrors() {
-    this.errorMessage = '';
-    this.exception = null;
-  }
-
   private getDefaultRowsCount(count?: number) {
     return count
       ? Math.max(
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooter.tsx b/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooter.tsx
index 28c07549a9..38f8c52c5b 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooter.tsx
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooter.tsx
@@ -94,11 +94,24 @@ export const TableFooter = observer(function TableFooter({
   return styled(useStyles(tableFooterStyles))(
     <table-footer as="div">
       <reload as="div">
-        <IconButton type="button" name='reload' viewBox="0 0 16 16" onClick={() => model.refresh()} />
+        <IconButton
+          type="button"
+          name='reload'
+          viewBox="0 0 16 16"
+          disabled={model.isLoading()}
+          onClick={() => model.refresh()}
+        />
       </reload>
       <count as="div">
         <SubmittingForm onSubmit={handleChange}>
-          <input ref={ref} type="number" value={model.countGain} onBlur={handleChange} {...use({ mod: 'surface' })} />
+          <input
+            ref={ref}
+            type="number"
+            value={model.countGain}
+            disabled={model.isLoading()}
+            onBlur={handleChange}
+            {...use({ mod: 'surface' })}
+          />
         </SubmittingForm>
       </count>
       <TableFooterMenu model={model} resultIndex={resultIndex} />
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooterMenu/TableFooterMenuService.ts b/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooterMenu/TableFooterMenuService.ts
index 90f62b0211..94e37e72a7 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooterMenu/TableFooterMenuService.ts
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableFooter/TableFooterMenu/TableFooterMenuService.ts
@@ -35,7 +35,7 @@ export class TableFooterMenuService {
         if (context.data.model.deprecatedModels.length === 0) {
           return true;
         }
-        return !context.data.model.getOldModel(context.data.resultIndex)?.isEdited();
+        return context.data.model.isLoading() || !context.data.model.getOldModel(context.data.resultIndex)?.isEdited();
       },
       order: 1,
       title: 'ui_processing_save',
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableGrid.tsx b/webapp/packages/plugin-data-viewer/src/TableViewer/TableGrid.tsx
index 1e48acacc1..da3bbad3de 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableGrid.tsx
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableGrid.tsx
@@ -44,21 +44,6 @@ export const TableGrid = observer(function TableGrid({
   const depModel = model.getOldModel(resultIndex);
   const translate = useTranslate();
 
-  // TODO: probably must be implemented in presentation component
-  if (model.message.length > 0) {
-    return styled(styles)(
-      <error as="div">
-        {model.message}
-        <br /><br />
-        {model.details && (
-          <Button type='button' mod={['outlined']} onClick={model.showDetails}>
-            {translate('ui_errors_details')}
-          </Button>
-        )}
-      </error>
-    );
-  }
-
   if (dataFormat !== presentation.dataFormat) {
     if (model.isLoading()) {
       return null;
@@ -74,5 +59,7 @@ export const TableGrid = observer(function TableGrid({
     return styled(styles)(<TextPlaceholder>{translate('data_viewer_nodata_message')}</TextPlaceholder>);
   }
 
-  return styled(styles)(<Presentation model={model} resultIndex={resultIndex} />);
+  return styled(styles)(
+    <Presentation model={model} resultIndex={resultIndex} />
+  );
 });
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableHeader/TableWhereFilter.tsx b/webapp/packages/plugin-data-viewer/src/TableViewer/TableHeader/TableWhereFilter.tsx
index 77451625d5..52ba9ac39d 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableHeader/TableWhereFilter.tsx
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableHeader/TableWhereFilter.tsx
@@ -48,23 +48,26 @@ export const TableWhereFilter = observer(function TableWhereFilter({
   const [filterValue, setValue] = useState(() => context.source.options?.whereFilter || '');
 
   const handleApply = useCallback(() => {
+    if (context.isLoading()) {
+      return;
+    }
     context.source.options!.whereFilter = filterValue;
     context.refresh();
   }, [context, filterValue]);
 
-  const resetFilter = useCallback(
-    () => {
-      const applyNeeded = context.source.options?.whereFilter === filterValue;
+  const resetFilter = useCallback(() => {
+    if (context.isLoading()) {
+      return;
+    }
+    const applyNeeded = context.source.options?.whereFilter === filterValue;
 
-      setValue('');
+    setValue('');
 
-      if (applyNeeded) {
-        context.source.options!.whereFilter = '';
-        context.refresh();
-      }
-    },
-    [context, filterValue]
-  );
+    if (applyNeeded) {
+      context.source.options!.whereFilter = '';
+      context.refresh();
+    }
+  }, [context, filterValue]);
 
   return styled(useStyles(styles))(
     <InlineEditor
@@ -73,6 +76,7 @@ export const TableWhereFilter = observer(function TableWhereFilter({
       placeholder={translate('table_header_sql_expression')}
       controlsPosition='inside'
       edited={!!filterValue}
+      disabled={context.isLoading() || context.results.length > 1}
       simple
       onSave={handleApply}
       onUndo={resetFilter}
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/PresentationTab.tsx b/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/PresentationTab.tsx
index 4c51343156..224c2f300d 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/PresentationTab.tsx
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/PresentationTab.tsx
@@ -42,11 +42,16 @@ export const PresentationTab = observer(function PresentationTab({
         style={verticalRotatedTabStyles}
         model={model}
         presentation={presentation}
+        disabled={model.isLoading()}
       />
     );
   }
   return styled(styles)(
-    <Tab tabId={presentation.id} style={[verticalRotatedTabStyles, style]}>
+    <Tab
+      tabId={presentation.id}
+      style={[verticalRotatedTabStyles, style]}
+      disabled={model.isLoading()}
+    >
       <TabIcon icon={presentation.icon} />
       <TabTitle>{presentation.title}</TabTitle>
     </Tab>
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/TableLeftBar.tsx b/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/TableLeftBar.tsx
index cc15396d0c..3fc5cf7f35 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/TableLeftBar.tsx
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableLeftBar/TableLeftBar.tsx
@@ -71,7 +71,12 @@ export const TableLeftBar = observer(function TableLeftBar({
       <TabsState currentTabId={presentationId} onChange={changePresentation}>
         <TabList>
           {presentations.map(presentation => (
-            <Tab key={presentation.id} presentation={presentation} model={model} style={styles} />
+            <Tab
+              key={presentation.id}
+              presentation={presentation}
+              model={model}
+              style={styles}
+            />
           ))}
         </TabList>
       </TabsState>
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewer.tsx b/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewer.tsx
index b4c19f5308..4a255aa082 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewer.tsx
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewer.tsx
@@ -8,11 +8,13 @@
 
 import { observer } from 'mobx-react-lite';
 import { PropsWithChildren, useCallback } from 'react';
-import styled, { css } from 'reshadow';
+import styled, { css, use } from 'reshadow';
 
-import { Loader, TextPlaceholder } from '@cloudbeaver/core-blocks';
+import { Button, Loader, TextPlaceholder, useStateDelay } from '@cloudbeaver/core-blocks';
 import { useService } from '@cloudbeaver/core-di';
+import { useTranslate } from '@cloudbeaver/core-localization';
 import { ResultDataFormat } from '@cloudbeaver/core-sdk';
+import { composes, useStyles } from '@cloudbeaver/core-theming';
 
 import { DataPresentationService } from '../DataPresentationService';
 import { TableFooter } from './TableFooter/TableFooter';
@@ -21,26 +23,52 @@ import { TableHeader } from './TableHeader/TableHeader';
 import { TableLeftBar } from './TableLeftBar/TableLeftBar';
 import { TableViewerStorageService } from './TableViewerStorageService';
 
-const viewerStyles = css`
-  table-viewer {
-    position: relative;
-    flex: 1;
-    display: flex;
-    flex-direction: column;
-    overflow: hidden;
-  }
-  table-content {
-    display: flex;
-    flex: 1;
-    overflow: hidden;
-  }
-  table-data, table-box {
-    display: flex;
-    flex: 1;
-    flex-direction: column;
-    overflow: hidden;
-  }
-`;
+const viewerStyles = composes(
+  css`
+    error {
+      composes: theme-background-surface from global;
+    }
+  `,
+  css`
+    table-viewer {
+      position: relative;
+      flex: 1;
+      display: flex;
+      flex-direction: column;
+      overflow: hidden;
+    }
+    table-content {
+      display: flex;
+      flex: 1;
+      overflow: hidden;
+    }
+    table-data, table-box {
+      position: relative;
+      display: flex;
+      flex: 1;
+      flex-direction: column;
+      overflow: hidden;
+    }
+    error {
+      position: absolute;
+      box-sizing: border-box;
+      width: 100%;
+      height: 100%;
+      white-space: pre-wrap;
+      padding: 16px;
+      overflow: auto;
+      z-index: 1;
+      opacity: 0;
+      transition: opacity 0.3s ease-in-out;
+    }
+    error[|animated] {
+      opacity: 1;
+    }
+    Button {
+      margin-right: 16px;
+    }
+  `
+);
 
 type TableViewerProps = PropsWithChildren<{
   tableId: string;
@@ -57,10 +85,13 @@ export const TableViewer = observer(function TableViewer({
   className,
   onPresentationChange,
 }: TableViewerProps) {
+  const styles = useStyles(viewerStyles);
   const dataPresentationService = useService(DataPresentationService);
   const tableViewerStorageService = useService(TableViewerStorageService);
   const dataModel = tableViewerStorageService.get(tableId);
   const result = dataModel?.getResult(resultIndex);
+  const translate = useTranslate();
+  const animated = useStateDelay(!!dataModel && dataModel.message.length !== 0, 1);
 
   const handlePresentationChange = useCallback((id: string) => {
     const presentation = dataPresentationService.get(id);
@@ -87,7 +118,7 @@ export const TableViewer = observer(function TableViewer({
     return <TextPlaceholder>There are no available presentation for data format: {dataFormat}</TextPlaceholder>;
   }
 
-  return styled(viewerStyles)(
+  return styled(styles)(
     <table-viewer as="div" className={className}>
       <TableHeader model={dataModel} />
       <table-content as='div'>
@@ -105,16 +136,28 @@ export const TableViewer = observer(function TableViewer({
               presentation={presentation}
               resultIndex={resultIndex}
             />
+            <error as="div" hidden={dataModel.message.length === 0} {...use({ animated })}>
+              {dataModel.message}
+              <br /><br />
+              <Button type='button' mod={['outlined']} onClick={dataModel.clearErrors}>
+                {translate('ui_error_close')}
+              </Button>
+              {dataModel.details && (
+                <Button type='button' mod={['unelevated']} onClick={dataModel.showDetails}>
+                  {translate('ui_errors_details')}
+                </Button>
+              )}
+            </error>
+            <Loader
+              loading={dataModel.isLoading()}
+              cancelDisabled={!dataModel.source.canCancel}
+              overlay={dataModel.results.length > 0 && presentation.dataFormat === dataFormat}
+              onCancel={() => dataModel.source.cancel()}
+            />
           </table-box>
           <TableFooter model={dataModel} resultIndex={resultIndex} />
         </table-data>
       </table-content>
-      <Loader
-        loading={dataModel.isLoading()}
-        cancelDisabled={!dataModel.source.canCancel}
-        overlay
-        onCancel={() => dataModel.source.cancel()}
-      />
     </table-viewer>
   );
 });
diff --git a/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewerModel.ts b/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewerModel.ts
index 400669b5b2..df42b8f235 100644
--- a/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewerModel.ts
+++ b/webapp/packages/plugin-data-viewer/src/TableViewer/TableViewerModel.ts
@@ -11,7 +11,7 @@ import { Subject, Observable } from 'rxjs';
 
 import { CommonDialogService, DialogueStateResult } from '@cloudbeaver/core-dialogs';
 import { ErrorDetailsDialog } from '@cloudbeaver/core-notifications';
-import { GQLError, SqlDataFilterConstraint } from '@cloudbeaver/core-sdk';
+import { DetailsError, SqlDataFilterConstraint } from '@cloudbeaver/core-sdk';
 import { MetadataMap } from '@cloudbeaver/core-utils';
 
 import { DatabaseDataAccessMode } from '../DatabaseDataModel/IDatabaseDataModel';
@@ -218,9 +218,9 @@ export class TableViewerModel {
         let hasDetails = false;
         let message = `${exception.name}: ${exception.message}`;
 
-        if (exception instanceof GQLError) {
+        if (exception instanceof DetailsError) {
           hasDetails = exception.hasDetails();
-          message = exception.errorText;
+          message = exception.errorMessage;
         }
 
         const state = await this.commonDialogService.open(
diff --git a/webapp/packages/plugin-sql-editor/src/ISqlEditorGroupMetadata.ts b/webapp/packages/plugin-sql-editor/src/ISqlEditorGroupMetadata.ts
deleted file mode 100644
index d5bc3e603a..0000000000
--- a/webapp/packages/plugin-sql-editor/src/ISqlEditorGroupMetadata.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * cloudbeaver - Cloud Database Manager
- * Copyright (C) 2020 DBeaver Corp and others
- *
- * Licensed under the Apache License, Version 2.0.
- * you may not use this file except in compliance with the License.
- */
-
-import { ResultDataFormat, SqlDataFilter } from '@cloudbeaver/core-sdk';
-
-import { ISqlQueryParams } from './ISqlEditorTabState';
-import { SqlExecutionState } from './SqlExecutionState';
-import { SQLQueryExecutionProcess } from './SqlResultTabs/SQLQueryExecutionProcess';
-
-export interface ISqlEditorGroupMetadata {
-  resultDataProcess: SQLQueryExecutionProcess;
-  start: (
-    context: SqlExecutionState,
-    sqlQueryParams: ISqlQueryParams,
-    filter: SqlDataFilter,
-    dataFormat: ResultDataFormat,
-  ) => Promise<SQLQueryExecutionProcess>;
-  dispose: (params: ISqlQueryParams) => Promise<void>;
-}
diff --git a/webapp/packages/plugin-sql-editor/src/ISqlEditorTabState.ts b/webapp/packages/plugin-sql-editor/src/ISqlEditorTabState.ts
index 282f56a615..417958c4dc 100644
--- a/webapp/packages/plugin-sql-editor/src/ISqlEditorTabState.ts
+++ b/webapp/packages/plugin-sql-editor/src/ISqlEditorTabState.ts
@@ -6,7 +6,7 @@
  * you may not use this file except in compliance with the License.
  */
 
-import { IExecutionContext } from '@cloudbeaver/plugin-data-viewer';
+import type { IExecutionContext } from '@cloudbeaver/plugin-data-viewer';
 
 export interface ISqlQueryParams extends IExecutionContext {
   query: string;
diff --git a/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SQLQueryExecutionProcess.ts b/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SQLQueryExecutionProcess.ts
index 9ea1d3f17d..8d6b56d870 100644
--- a/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SQLQueryExecutionProcess.ts
+++ b/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SQLQueryExecutionProcess.ts
@@ -153,9 +153,7 @@ export class SQLQueryExecutionProcess extends Deferred<SqlExecuteInfo> {
   private onError(error: Error, status?: string) {
     // if task failed to execute during cancelling - it means it was cancelled successfully
     if (this.getState() === EDeferredState.CANCELLING) {
-      this.toCancelled();
-      const message = `Query execution has been canceled${status ? `: ${status}` : ''}`;
-      this.notificationService.logException(error, 'Query execution Error', message);
+      this.toCancelled(error);
     } else {
       this.toRejected(error);
     }
diff --git a/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SqlResultTabsService.ts b/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SqlResultTabsService.ts
index f270511eea..4ee54dfc0b 100644
--- a/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SqlResultTabsService.ts
+++ b/webapp/packages/plugin-sql-editor/src/SqlResultTabs/SqlResultTabsService.ts
@@ -10,7 +10,7 @@ import { ConnectionInfoResource } from '@cloudbeaver/core-connections';
 import { injectable } from '@cloudbeaver/core-di';
 import { NotificationService } from '@cloudbeaver/core-events';
 import { GraphQLService } from '@cloudbeaver/core-sdk';
-import { uuid, MetadataMap, isPromiseCancelledError } from '@cloudbeaver/core-utils';
+import { uuid, MetadataMap, EDeferredState } from '@cloudbeaver/core-utils';
 import { DatabaseDataAccessMode, DataModelWrapper, fetchingSettings, TableViewerStorageService } from '@cloudbeaver/plugin-data-viewer';
 
 import type {
@@ -146,8 +146,10 @@ export class SqlResultTabsService {
             );
         } catch (exception) {
           // remove first panel if execution was cancelled
-          if (isPromiseCancelledError(exception) && isNewTabCreated) {
+          if (source.queryExecutionProcess?.getState() === EDeferredState.CANCELLED && isNewTabCreated) {
             this.removeGroup(editorState, tabGroup.groupId);
+            const message = `Query execution has been canceled${status ? `: ${status}` : ''}`;
+            this.notificationService.logException(exception, 'Query execution Error', message);
           }
         }
       }