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Updated Delete Data (markdown)

IGeekFan
2023-07-27 23:14:27 +08:00
parent 8fdbec3906
commit 3a02c7bb92
1 changed files with 9 additions and 9 deletions
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18
Delete-Data.md

@@ -21,7 +21,7 @@ class Topic {
## Dynamic Conditions
```csharp
fsql.Delete<Topic>(object dywhere)
fsql.Delete<Topic>(object dywhere).ExecuteAffrows()
```
`dywhere` supports:
@@ -32,16 +32,16 @@ fsql.Delete<Topic>(object dywhere)
* `new { id = 1 }`
```csharp
var t1 = fsql.Delete<Topic>(new[] { 1, 2 }).ToSql();
var t1 = fsql.Delete<Topic>(new[] { 1, 2 }).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (`Id` = 1 OR `Id` = 2)
var t2 = fsql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).ToSql();
var t2 = fsql.Delete<Topic>(new Topic { Id = 1, Title = "test" }).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (`Id` = 1)
var t3 = fsql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).ToSql();
var t3 = fsql.Delete<Topic>(new[] { new Topic { Id = 1, Title = "test" }, new Topic { Id = 2, Title = "test" } }).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (`Id` in (1, 2))
var t4 = fsql.Delete<Topic>(new { id = 1 }).ToSql();
var t4 = fsql.Delete<Topic>(new { id = 1 }).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (`Id` = 1)
```
@@ -50,19 +50,19 @@ var t4 = fsql.Delete<Topic>(new { id = 1 }).ToSql();
> For safety reasons, when there are no conditions, the delete action will not be executed to avoid deleting the entire table data by mistake. Delete the entire table data: `fsql.Delete<T>().Where("1=1").ExecuteAffrows()`
```csharp
var t5 = fsql.Delete<Topic>().Where(a => a.Id == 1).ToSql();
var t5 = fsql.Delete<Topic>().Where(a => a.Id == 1).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (`Id` = 1)
var t6 = fsql.Delete<Topic>().Where("id = @id", new { id = 1 }).ToSql();
var t6 = fsql.Delete<Topic>().Where("id = @id", new { id = 1 }).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (id = @id)
var item = new Topic { Id = 1, Title = "newtitle" };
var t7 = fsql.Delete<Topic>().Where(item).ToSql();
var t7 = fsql.Delete<Topic>().Where(item).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (`Id` = 1)
var items = new List<Topic>();
for (var a = 0; a < 10; a++) items.Add(new Topic { Id = a + 1, Title = $"newtitle{a}", Clicks = a * 100 });
var t8 = fsql.Delete<Topic>().Where(items).ToSql();
var t8 = fsql.Delete<Topic>().Where(items).ExecuteAffrows();
//DELETE FROM `Topic` WHERE (`Id` IN (1,2,3,4,5,6,7,8,9,10))
```