diff --git a/src/components/editor/QueryHistory.vue b/src/components/editor/QueryHistory.vue
index fbd12421e5..2cf748d811 100644
--- a/src/components/editor/QueryHistory.vue
+++ b/src/components/editor/QueryHistory.vue
@@ -246,7 +246,7 @@ onMounted(() => store.load());
         <DialogHeader>
           <DialogTitle>{{ selectedEntry ? entryTitle(selectedEntry) : t("history.viewDetails") }}</DialogTitle>
         </DialogHeader>
-        <div v-if="selectedEntry" class="space-y-4">
+        <div v-if="selectedEntry" class="space-y-4 overflow-y-auto max-h-[60vh]">
           <div class="grid grid-cols-[120px_1fr] gap-x-3 gap-y-2 text-sm">
             <template v-for="[label, value] in detailsRows(selectedEntry)" :key="label">
               <div class="text-muted-foreground">{{ label }}</div>
diff --git a/src/components/grid/DataGrid.vue b/src/components/grid/DataGrid.vue
index 6999d57fff..813d85d194 100644
--- a/src/components/grid/DataGrid.vue
+++ b/src/components/grid/DataGrid.vue
@@ -927,6 +927,9 @@ const {
   requestDeleteRow,
   confirmDeleteRow,
   restoreRow,
+  pendingDeleteRowIds,
+  requestDeleteRows,
+  cloneRows,
   saveChanges,
   discardChanges,
   rowDataWithChanges,
@@ -1040,10 +1043,6 @@ const deleteRowDetails = computed(() =>
     : t("dangerDialog.deleteRowDetailsNoTable"),
 );
 
-function deleteSelectedRow() {
-  if (!contextCell.value) return;
-  requestDeleteRow(contextCell.value.rowId);
-}
 const hasVisibleRows = computed(() => displayItems.value.length > 0);
 const hasActiveFilter = computed(
   () => !!deferredClientSearchText.value || rowStatusFilter.value !== "all" || hasLocalColumnFilters.value,
@@ -1074,17 +1073,27 @@ const {
   hasCellSelection,
   clearCellSelection,
   selectSingleCell,
-  selectRow,
   finishCellSelection,
-  beginCellSelection,
   extendCellSelection,
   cellIsSelected,
   selectedRangeStart,
+  selectedRowIds,
+  hasRowSelection,
+  selectedRowCount,
+  clearRowSelection,
+  handleRowClick,
+  handleDataCellMousedown,
+  isRowSelected,
 } = selection;
 
-const selectionSummary = computed(() => t("grid.selectedCells", { count: selectedCellCount.value }));
+const selectionSummary = computed(() => {
+  if (hasRowSelection.value) return t("grid.selectedRows", { count: selectedRowCount.value });
+  return t("grid.selectedCells", { count: selectedCellCount.value });
+});
 
 function isRowActive(index: number): boolean {
+  const item = displayItems.value[index];
+  if (item && isRowSelected(item.id)) return true;
   const range = selectedRange.value;
   if (!range) return false;
   return index >= range.startRow && index <= range.endRow;
@@ -1407,6 +1416,8 @@ const {
   getRowItem: (rowId: number) => visibleDisplayItems.value.find((item) => item.id === rowId),
   quoteIdent,
   escapeVal,
+  selectedRowIds,
+  hasRowSelection,
 });
 
 // --- Cell selection and detail ---
@@ -1541,6 +1552,7 @@ watch(
       resetGridVerticalScroll();
     }
     clearCellSelection();
+    clearRowSelection();
     showCellDetail.value = false;
     detailCell.value = null;
     showTranspose.value = false;
@@ -1552,6 +1564,10 @@ watch(
 // --- Context menu handlers ---
 function onCellContext(rowId: number, rowIndex: number, colIdx: number, visibleColIdx: number) {
   contextCell.value = { rowId, rowIndex, col: colIdx };
+  if (hasRowSelection.value && isRowSelected(rowId)) {
+    return;
+  }
+  clearRowSelection();
   if (!cellIsSelected(rowIndex, visibleColIdx)) {
     selectSingleCell(rowIndex, visibleColIdx);
   }
@@ -1559,7 +1575,11 @@ function onCellContext(rowId: number, rowIndex: number, colIdx: number, visibleC
 
 function onRowContext(rowId: number, rowIndex: number) {
   contextCell.value = { rowId, rowIndex, col: -1 };
-  selectRow(rowIndex);
+  if (!isRowSelected(rowId)) {
+    clearCellSelection();
+    selectedRowIds.value = new Set([rowId]);
+    selection.lastClickedRowIndex.value = rowIndex;
+  }
 }
 
 const sqlOneLiner = computed(() => props.sql?.replace(/\s+/g, " ").trim() || "");
@@ -2229,9 +2249,18 @@ defineExpose({
                   >
                     <div
                       class="shrink-0 px-2 py-1 border-r border-border text-center select-none cursor-default hover:bg-accent/50"
-                      :class="rowNumberStatusClass(item)"
+                      :class="[
+                        rowNumberStatusClass(item),
+                        {
+                          'text-primary font-semibold !bg-primary/15':
+                            isRowSelected(item.id) &&
+                            item.status !== 'new' &&
+                            item.status !== 'edited' &&
+                            item.status !== 'deleted',
+                        },
+                      ]"
                       :style="{ width: 'var(--row-num-w)' }"
-                      @click="selectRow(index)"
+                      @click="handleRowClick(index, item.id, $event)"
                       @contextmenu="onRowContext(item.id, index)"
                     >
                       {{ index + 1 }}
@@ -2249,7 +2278,7 @@ defineExpose({
                         'cursor-text hover:bg-accent/50': editable && !item.isDeleted,
                         'line-through': item.isDeleted,
                       }"
-                      @mousedown="beginCellSelection(index, visibleColIdx, $event)"
+                      @mousedown="handleDataCellMousedown(index, visibleColIdx, item.id, $event)"
                       @mouseenter="extendCellSelection(index, visibleColIdx)"
                       @dblclick="editable && !item.isDeleted && startEdit(item.id, actualColIdx)"
                       @contextmenu="onCellContext(item.id, index, actualColIdx, visibleColIdx)"
@@ -2540,8 +2569,20 @@ defineExpose({
           <ContextMenuSubTrigger> <Copy class="w-3.5 h-3.5 mr-2" /> {{ t("grid.copy") }} </ContextMenuSubTrigger>
           <ContextMenuSubContent class="w-max max-w-[min(80vw,18rem)]">
             <ContextMenuItem v-if="contextColumn" @click="copyCell">{{ t("grid.copyCell") }}</ContextMenuItem>
-            <ContextMenuItem @click="copyRow">{{ t("grid.copyRow") }}</ContextMenuItem>
-            <ContextMenuItem @click="copyRowAsInsert">{{ t("grid.copyRowInsert") }}</ContextMenuItem>
+            <ContextMenuItem @click="copyRow">
+              {{
+                hasRowSelection && selectedRowCount > 1
+                  ? t("grid.copyRows", { count: selectedRowCount })
+                  : t("grid.copyRow")
+              }}
+            </ContextMenuItem>
+            <ContextMenuItem @click="copyRowAsInsert">
+              {{
+                hasRowSelection && selectedRowCount > 1
+                  ? t("grid.copyRowsInsert", { count: selectedRowCount })
+                  : t("grid.copyRowInsert")
+              }}
+            </ContextMenuItem>
             <ContextMenuItem @click="copyAll">{{ t("grid.copyAll") }}</ContextMenuItem>
           </ContextMenuSubContent>
         </ContextMenuSub>
@@ -2563,14 +2604,36 @@ defineExpose({
         </ContextMenuSub>
         <ContextMenuSeparator />
         <template v-if="editable && contextRowItem">
-          <ContextMenuItem @click="cloneRow(contextRowItem.id)">
-            <CopyPlus class="w-3.5 h-3.5 mr-2" /> {{ t("grid.cloneRow") }}
+          <ContextMenuItem
+            @click="
+              hasRowSelection && selectedRowCount > 1 ? cloneRows([...selectedRowIds]) : cloneRow(contextRowItem.id)
+            "
+          >
+            <CopyPlus class="w-3.5 h-3.5 mr-2" />
+            {{
+              hasRowSelection && selectedRowCount > 1
+                ? t("grid.cloneRows", { count: selectedRowCount })
+                : t("grid.cloneRow")
+            }}
           </ContextMenuItem>
           <ContextMenuItem v-if="contextRowItem.isDeleted" @click="restoreRow(contextRowItem.id)">
             <Undo2 class="w-3.5 h-3.5 mr-2" /> {{ t("grid.restoreRow") }}
           </ContextMenuItem>
-          <ContextMenuItem v-else class="text-destructive" @click="deleteSelectedRow">
-            <Trash2 class="w-3.5 h-3.5 mr-2" /> {{ t("grid.deleteRow") }}
+          <ContextMenuItem
+            v-else
+            class="text-destructive"
+            @click="
+              hasRowSelection && selectedRowCount > 1
+                ? requestDeleteRows([...selectedRowIds])
+                : requestDeleteRow(contextRowItem.id)
+            "
+          >
+            <Trash2 class="w-3.5 h-3.5 mr-2" />
+            {{
+              hasRowSelection && selectedRowCount > 1
+                ? t("grid.deleteRows", { count: selectedRowCount })
+                : t("grid.deleteRow")
+            }}
           </ContextMenuItem>
           <ContextMenuSeparator />
         </template>
@@ -2676,9 +2739,17 @@ defineExpose({
 
     <DangerConfirmDialog
       v-model:open="showDeleteRowConfirm"
-      :message="t('dangerDialog.deleteRowMessage')"
+      :message="
+        pendingDeleteRowIds.length > 1
+          ? t('dangerDialog.deleteRowsMessage', { count: pendingDeleteRowIds.length })
+          : t('dangerDialog.deleteRowMessage')
+      "
       :details="deleteRowDetails"
-      :confirm-label="t('grid.deleteRow')"
+      :confirm-label="
+        pendingDeleteRowIds.length > 1
+          ? t('grid.deleteRows', { count: pendingDeleteRowIds.length })
+          : t('grid.deleteRow')
+      "
       @confirm="confirmDeleteRow"
     />
   </div>
diff --git a/src/composables/useDataGridEditor.ts b/src/composables/useDataGridEditor.ts
index f7126a5c52..bc06718ac9 100644
--- a/src/composables/useDataGridEditor.ts
+++ b/src/composables/useDataGridEditor.ts
@@ -384,6 +384,21 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
     });
   }
 
+  function cloneRows(rowIds: number[]) {
+    const primaryKeys = tableMeta.value?.primaryKeys ?? [];
+    const columns = result.value.columns;
+    rowStatusFilter.value = rowStatusFilterAfterAddingRow(rowStatusFilter.value);
+    for (const rowId of rowIds) {
+      const item = getRowItem(rowId);
+      if (!item) continue;
+      const clonedData = item.data.map((val, i) => (primaryKeys.includes(columns[i]) ? null : val));
+      newRows.value.push(clonedData);
+    }
+    if (useTransaction.value && !transactionActive.value) {
+      enterTransaction();
+    }
+  }
+
   function applyDeleteRow(rowId: number) {
     const item = getRowItem(rowId);
     if (!item) return;
@@ -401,13 +416,26 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
 
   const showDeleteRowConfirm = ref(false);
   const pendingDeleteRowId = ref<number | null>(null);
+  const pendingDeleteRowIds = ref<number[]>([]);
 
   function requestDeleteRow(rowId: number) {
     pendingDeleteRowId.value = rowId;
     showDeleteRowConfirm.value = true;
   }
 
+  function requestDeleteRows(rowIds: number[]) {
+    pendingDeleteRowIds.value = rowIds;
+    showDeleteRowConfirm.value = true;
+  }
+
   function confirmDeleteRow() {
+    if (pendingDeleteRowIds.value.length > 0) {
+      for (const rowId of pendingDeleteRowIds.value) {
+        applyDeleteRow(rowId);
+      }
+      pendingDeleteRowIds.value = [];
+      return;
+    }
     if (pendingDeleteRowId.value === null) return;
     applyDeleteRow(pendingDeleteRowId.value);
     pendingDeleteRowId.value = null;
@@ -642,10 +670,13 @@ export function useDataGridEditor(options: UseDataGridEditorOptions) {
     onEditKeydown,
     addRow,
     cloneRow,
+    cloneRows,
     applyDeleteRow,
     showDeleteRowConfirm,
     pendingDeleteRowId,
+    pendingDeleteRowIds,
     requestDeleteRow,
+    requestDeleteRows,
     confirmDeleteRow,
     restoreRow,
     deleteSelectedRow,
diff --git a/src/composables/useDataGridExport.ts b/src/composables/useDataGridExport.ts
index ab9624207d..88f8b3460f 100644
--- a/src/composables/useDataGridExport.ts
+++ b/src/composables/useDataGridExport.ts
@@ -39,6 +39,8 @@ export interface UseDataGridExportOptions {
   getRowItem: (rowId: number) => RowItem | undefined;
   quoteIdent: (name: string) => string;
   escapeVal: (value: CellValue) => string;
+  selectedRowIds: Ref<Set<number>> | ComputedRef<Set<number>>;
+  hasRowSelection: ComputedRef<boolean>;
 }
 
 export function useDataGridExport(options: UseDataGridExportOptions) {
@@ -57,6 +59,8 @@ export function useDataGridExport(options: UseDataGridExportOptions) {
     getRowItem,
     quoteIdent,
     escapeVal,
+    selectedRowIds,
+    hasRowSelection,
   } = options;
 
   function copyText(text: string) {
@@ -94,6 +98,18 @@ export function useDataGridExport(options: UseDataGridExportOptions) {
   }
 
   function copyRow() {
+    if (hasRowSelection.value && selectedRowIds.value.size > 0) {
+      const items = displayItems.value.filter((item) => selectedRowIds.value.has(item.id));
+      const objects = items.map((item) => {
+        const obj: Record<string, unknown> = {};
+        columns.value.forEach((col, i) => {
+          obj[col] = item.data[i];
+        });
+        return obj;
+      });
+      copyText(JSON.stringify(objects, null, 2));
+      return;
+    }
     if (!contextCell.value) return;
     const item = getRowItem(contextCell.value.rowId);
     if (!item) return;
@@ -109,6 +125,17 @@ export function useDataGridExport(options: UseDataGridExportOptions) {
       ? (tableMeta.value.schema ? `${quoteIdent(tableMeta.value.schema)}.` : "") + quoteIdent(tableMeta.value.tableName)
       : "table_name";
     const cols = columns.value.map((c) => quoteIdent(c)).join(", ");
+
+    if (hasRowSelection.value && selectedRowIds.value.size > 0) {
+      const items = displayItems.value.filter((item) => selectedRowIds.value.has(item.id));
+      const statements = items.map((item) => {
+        const vals = item.data.map((v) => escapeVal(v)).join(", ");
+        return `INSERT INTO ${table} (${cols}) VALUES (${vals});`;
+      });
+      copyText(statements.join("\n"));
+      return;
+    }
+
     const range = selectedRange.value;
     if (range && range.startRow !== range.endRow) {
       const items = displayItems.value.slice(range.startRow, range.endRow + 1);
@@ -119,6 +146,7 @@ export function useDataGridExport(options: UseDataGridExportOptions) {
       copyText(statements.join("\n"));
       return;
     }
+
     if (!contextCell.value) return;
     const item = getRowItem(contextCell.value.rowId);
     if (!item) return;
diff --git a/src/composables/useDataGridSelection.ts b/src/composables/useDataGridSelection.ts
index dd29f1ea85..564a904971 100644
--- a/src/composables/useDataGridSelection.ts
+++ b/src/composables/useDataGridSelection.ts
@@ -37,6 +37,11 @@ export function useDataGridSelection(options: UseDataGridSelectionOptions) {
   const selectionFocus = ref<CellPosition | null>(null);
   const isSelectingCells = ref(false);
 
+  const selectedRowIds = ref<Set<number>>(new Set());
+  const lastClickedRowIndex = ref<number | null>(null);
+  const hasRowSelection = computed(() => selectedRowIds.value.size > 0);
+  const selectedRowCount = computed(() => selectedRowIds.value.size);
+
   const selectedRange = computed<CellSelectionRange | null>(() => {
     if (!selectionAnchor.value || !selectionFocus.value) return null;
     return normalizeSelectionRange(selectionAnchor.value, selectionFocus.value);
@@ -57,6 +62,11 @@ export function useDataGridSelection(options: UseDataGridSelectionOptions) {
     isSelectingCells.value = false;
   }
 
+  function clearRowSelection() {
+    selectedRowIds.value = new Set();
+    lastClickedRowIndex.value = null;
+  }
+
   function selectSingleCell(rowIndex: number, colIndex: number) {
     const cell = { rowIndex, colIndex };
     selectionAnchor.value = cell;
@@ -69,6 +79,36 @@ export function useDataGridSelection(options: UseDataGridSelectionOptions) {
     selectionFocus.value = { rowIndex, colIndex: columns.value.length - 1 };
   }
 
+  function handleRowClick(rowIndex: number, rowId: number, event: MouseEvent) {
+    const isMeta = event.metaKey || event.ctrlKey;
+    const isShift = event.shiftKey;
+
+    clearCellSelection();
+
+    if (isMeta) {
+      const next = new Set(selectedRowIds.value);
+      if (next.has(rowId)) {
+        next.delete(rowId);
+      } else {
+        next.add(rowId);
+      }
+      selectedRowIds.value = next;
+      lastClickedRowIndex.value = rowIndex;
+    } else if (isShift && lastClickedRowIndex.value !== null) {
+      const start = Math.min(lastClickedRowIndex.value, rowIndex);
+      const end = Math.max(lastClickedRowIndex.value, rowIndex);
+      const next = new Set(selectedRowIds.value);
+      for (let i = start; i <= end; i++) {
+        const item = displayItems.value[i];
+        if (item) next.add(item.id);
+      }
+      selectedRowIds.value = next;
+    } else {
+      selectedRowIds.value = new Set([rowId]);
+      lastClickedRowIndex.value = rowIndex;
+    }
+  }
+
   function finishCellSelection() {
     isSelectingCells.value = false;
     document.removeEventListener("mouseup", finishCellSelection);
@@ -94,6 +134,28 @@ export function useDataGridSelection(options: UseDataGridSelectionOptions) {
     selectionFocus.value = { rowIndex, colIndex };
   }
 
+  function handleDataCellMousedown(rowIndex: number, colIndex: number, rowId: number, event: MouseEvent) {
+    if (event.button !== 0) return;
+    if (editingCell.value) return;
+
+    const isMeta = event.metaKey || event.ctrlKey;
+    const isShift = event.shiftKey;
+
+    if (isMeta || isShift) {
+      event.preventDefault();
+      focusGridWithoutScrolling();
+      handleRowClick(rowIndex, rowId, event);
+      return;
+    }
+
+    clearRowSelection();
+    beginCellSelection(rowIndex, colIndex, event);
+  }
+
+  function isRowSelected(rowId: number): boolean {
+    return selectedRowIds.value.has(rowId);
+  }
+
   function cellIsSelected(rowIndex: number, colIndex: number): boolean {
     return isCellInSelection(rowIndex, colIndex, selectedRange.value);
   }
@@ -120,5 +182,13 @@ export function useDataGridSelection(options: UseDataGridSelectionOptions) {
     extendCellSelection,
     cellIsSelected,
     selectedRangeStart,
+    selectedRowIds,
+    lastClickedRowIndex,
+    hasRowSelection,
+    selectedRowCount,
+    clearRowSelection,
+    handleRowClick,
+    handleDataCellMousedown,
+    isRowSelected,
   };
 }
diff --git a/src/i18n/locales/en.ts b/src/i18n/locales/en.ts
index 5b65ed5595..ac1b6140f5 100644
--- a/src/i18n/locales/en.ts
+++ b/src/i18n/locales/en.ts
@@ -286,6 +286,11 @@ export default {
     addRow: "Add Row",
     cloneRow: "Clone Row",
     deleteRow: "Delete Row",
+    deleteRows: "Delete {count} Rows",
+    cloneRows: "Clone {count} Rows",
+    copyRows: "Copy {count} Rows (JSON)",
+    copyRowsInsert: "Copy {count} Rows as INSERT",
+    selectedRows: "{count} rows selected",
     restoreRow: "Restore Row",
     statusClean: "Clean",
     statusNew: "New Items",
@@ -800,6 +805,8 @@ export default {
     deleteMessage: "This delete operation may be irreversible. Continue?",
     deleteConfirm: "Confirm Delete",
     deleteRowMessage: "This row will be marked for deletion and removed from the database after saving. Continue?",
+    deleteRowsMessage:
+      "These {count} rows will be marked for deletion and removed from the database after saving. Continue?",
     deleteRowDetails: "Table: {table}",
     deleteRowDetailsNoTable: "Current result row",
     redisKeyDetails: "Redis key: {key}",
diff --git a/src/i18n/locales/es.ts b/src/i18n/locales/es.ts
index fa3465a7ed..fc00a198bf 100644
--- a/src/i18n/locales/es.ts
+++ b/src/i18n/locales/es.ts
@@ -287,6 +287,11 @@ export default {
     addRow: "Agregar fila",
     cloneRow: "Clonar fila",
     deleteRow: "Eliminar fila",
+    deleteRows: "Eliminar {count} filas",
+    cloneRows: "Clonar {count} filas",
+    copyRows: "Copiar {count} filas (JSON)",
+    copyRowsInsert: "Copiar {count} filas como INSERT",
+    selectedRows: "{count} filas seleccionadas",
     restoreRow: "Restaurar fila",
     statusClean: "Sin cambios",
     statusNew: "Elementos nuevos",
@@ -803,6 +808,8 @@ export default {
     deleteConfirm: "Confirmar eliminación",
     deleteRowMessage:
       "Esta fila quedará marcada para eliminación y se borrará de la base de datos al guardar. ¿Continuar?",
+    deleteRowsMessage:
+      "Estas {count} filas se marcarán para eliminación y se eliminarán de la base de datos después de guardar. ¿Continuar?",
     deleteRowDetails: "Tabla: {table}",
     deleteRowDetailsNoTable: "Fila actual del resultado",
     redisKeyDetails: "Clave Redis: {key}",
diff --git a/src/i18n/locales/zh-CN.ts b/src/i18n/locales/zh-CN.ts
index 0ded0de9ff..3e8e56fb1c 100644
--- a/src/i18n/locales/zh-CN.ts
+++ b/src/i18n/locales/zh-CN.ts
@@ -285,6 +285,11 @@ export default {
     addRow: "新增行",
     cloneRow: "克隆行",
     deleteRow: "删除行",
+    deleteRows: "删除 {count} 行",
+    cloneRows: "克隆 {count} 行",
+    copyRows: "复制 {count} 行 (JSON)",
+    copyRowsInsert: "复制 {count} 行为 INSERT",
+    selectedRows: "已选 {count} 行",
     restoreRow: "恢复行",
     statusClean: "未改",
     statusNew: "新增项",
@@ -786,6 +791,7 @@ export default {
     deleteMessage: "此删除操作可能不可逆，确认要继续吗？",
     deleteConfirm: "确认删除",
     deleteRowMessage: "此行将被标记为删除，保存后会从数据库删除，确认要继续吗？",
+    deleteRowsMessage: "这 {count} 行将被标记为删除，保存后会从数据库删除，确认要继续吗？",
     deleteRowDetails: "数据表：{table}",
     deleteRowDetailsNoTable: "当前结果集中的行",
     redisKeyDetails: "Redis key：{key}",