diff --git a/Delete-Data.md b/Delete-Data.md
index f475f18..2e81dc4 100644
--- a/Delete-Data.md
+++ b/Delete-Data.md
@@ -101,7 +101,6 @@ The benefits of using this method for complex deletion:
 | Where | \<this\> | Lambda | Expression conditions, only support entity basic members (not including navigation objects) |
 | Where | \<this\> | string, parms | Raw SQL syntax conditions, `Where("id = @id", new { id = 1 })` |
 | Where | \<this\> | T1 \| IEnumerable\<T1\> | Pass in the entity or collection, and use its primary key as the condition |
-| WhereExists | \<this\> | ISelect | 子查询是否存在 |
 | CommandTimeout | \<this\> | int | Command timeout setting (seconds) |
 | WithTransaction | \<this\> | DbTransaction | Set transaction object |
 | WithConnection | \<this\> | DbConnection | Set the connection object |