即Scrollable(可滚动的,可向前可向后)和Updatable(可更新的)的 Statement。...即con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE); 1.Update(更新) a row..."1234"); String s = "select * from login"; /* A default ResultSet object is not updatable...It is possible to * produce ResultSet objects that are scrollable and/or updatable....= con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE, ResultSet.CONCUR_UPDATABLE
首先我们看下官方文档对视图进行DML操作的要求说明: The following notes apply to updatable views: An updatable view is one you...to make it updatable....the USER_UPDATABLE_COLUMNS data dictionary view....USER_UPDATABLE_COLUMNS数据字典视图可以找到视图的哪些字段可以进行增加、更新和删除。...For a view to be inherently updatable, the following conditions must be met: 对于这种updatable继承的视图,需要满足以下条件
观察时它处于active状态,当他不被任意一个Updatable观察时处于inactive状态。...从另一个角度说:一个Updatable通过注册到处于inactive的Observable上来激活Observable;当处于active的Observable仅具有一个注册的Updatable时,该Updatable...Observables and updatables 一个Observable代表一个事件源,一个Updatable观察这些事件。...一个Updatable通过Observable.addUpdatable(Updatable)注册到observable,通过Observable.removeUpdatable(Updatable)取消注册...一个事件以Updatable.update()的形式被发送到updatable。 ? UI lifecycle 事件链特别适合伴随UI的生命周期构建响应式结构 ?
user,password); Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE...user,password); Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE...user,password); Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE..., SysProps); Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE...user,password); Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE
三、Non-updatable Pre-compilation V.S. Updatable Pre-compilation ASP.NET 2.0为我们提供了几种不同方式的预编译和部署。...除了Updatable Pre-compilation之外,ASP.NET还提供另外一种高效的预编译方式,Non-updatable Pre-compilation,之所以叫做不可修改的预编译,这是因为...1、Non-updatable Pre-compilation ? 我们采用如上图所示的默认的发布方式,ASP.NET 将会进行Non-updatable Pre-compilation。...site to be updatable。...生成的文件及其结构和进行Non-updatable Pre-compilation,不同的又一下3点: PrecompiledApp.config:updatable被设置为true。
."); } } public class UpdatableProxy implements IUpdatable { private IUpdatable updatable; public...UpdatableProxy(IUpdatable updatable) { this.updatable = updatable; } @Override public void...update() { System.out.println("pre safety check."); updatable.update(); System.out.println...= new UpdatableImpl(); IUpdatable proxy = new UpdatableProxy(updatable); proxy.update(); }...ISubject.class}, new SafetyInvocationHandler(subject)); proxySubject.request(); IUpdatable updatable
nullable = false) private Long updateTime; /** * 创建时间 */ @CreatedDate @Column(updatable...nullable = false) private Long updateTime; /** * 创建时间 */ @CreatedDate @Column(updatable...nullable = false) private Date updateTime; @CreationTimestamp @Column(nullable = false, updatable
刻度、数值范围,表示该字段的小数位数 nullable 是否可为空 unsigned 是否无符号 insertable 是否可插入 queryable 是否可查询 systemable 是否系统字段 updatable..., "nullable": false, "queryable": false, "systemable": true, "unsigned": true, "updatable..., "nullable": false, "queryable": true, "systemable": true, "unsigned": false, "updatable..., "nullable": true, "queryable": false, "systemable": true, "unsigned": false, "updatable..."nullable": false, "queryable": false, "systemable": true, "unsigned": false, "updatable
同样也是基于观察者模式,Agera和RxJava的角色分类大致相似,在Agera中,主要角色有两个:Observable(被观察者)、Updatable(观察者)。...若一个Updatable观察了此Reservoir,其队列中发生调度变化后即将出列的下一个数据如果是可用的(非空),就会通知该Updatable,进一步拉取这个数据发送给Receiver。...返回RTermination orSkip() 若前面的操作检查为失败,就跳过剩下的数据处理流,并且不会通知所有已添加的Updatable。...再回到上面的示例代码: [image.jpg] 我们在onResume()、onPause()这两个生命周期下分别添加、移除了Updatable。...我们根据需要添加Updatable,repository在数据流处理完成后会通过update()发送event通知Updatable。
由于 NanoMQ 为纯 C 语言开发,无内置运行时,所以热更新功能仅支持配置文件中部分标注为「Hot updatable」的字段,目的在于提供用户一种可以实时调整 Broker 服务运行参数的方法。...Property_size # # The max size for a MQTT user property # # MQTT 5.0 消息中最大可携带的用户属性长度 # # Hot updatable...# Defines the max size of a packet that NanoMQ could accept # # 最大可接收的MQTT报文长度,单位为字节 # # Hot updatable...# # Hot updatable # # Value: 1-infinity msq_len = 2048 # # qos_duration (s) # # The nano...qos duration which also controls timer interval of each pipe # # 全局定时器颗粒度,单位为秒 # # Hot updatable
nullable = false) private Long updateTime; /** * 创建时间 */ @CreatedDate @Column(updatable...nullable = false) private Long updateTime; /** * 创建时间 */ @CreatedDate @Column(updatable
另外,视图DBA_UPDATABLE_COLUMNS可以查询到所有连接视图中的列是否可以被更新。...DL.DATA_TYPE, DL.NULLABLE, DL.COLUMN_ID, DL.VIRTUAL_COLUMN, DL.HIDDEN_COLUMN, DU.DELETABLE, DU.UPDATABLE..., DU.INSERTABLE FROM DBA_VIEWS DV, DBA_TAB_COLS DL, DBA_UPDATABLE_COLUMNS DU WHERE DV.VIEW_NAME =
current.txt and/or removed.txt by executing the following command: make api-stubs-docs-non-updatable-update-current-api...method @Nullable public String getName();+ }++}+ package android.icu.lang { frameworks/base/non-updatable-api.../current.txt 12345678910111213141516171819202122232425 diff --git a/non-updatable-api/current.txt b/non-updatable-api.../current.txtindex adf1bb5..e738c02 100755--- a/non-updatable-api/current.txt+++ b/non-updatable-api/current.txt
triggers or in triggers on user's tables ALL_TYPES Description of types accessible to the user ALL_UPDATABLE_COLUMNS...Description of all updatable columns ALL_USERS Information about all users of the database ALL_VIEWS
ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_UPDATABLE...ResultSet.TYPE_SCROLL_SENSITIVE 之一 resultSetConcurrency - 并发类型;它是 ResultSet.CONCUR_READ_ONLY 或 ResultSet.CONCUR_UPDATABLE...ResultSet.CONCUR_UPDATABLE 该常量指示可以更新的 ResultSet 对象的并发模式。...ResultSet.TYPE_SCROLL_INSENSITIVE ResultSet.CONCUR_READ_ONLY ResultSet.TYPE_SCROLL_SENSITIVE ResultSet.CONCUR_UPDATABLE...还提供了对结果集进行滚动和更新的方法 Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE
FetchType.EAGER) @JoinColumn(name = "order_no", referencedColumnName = "order_no", insertable = false, updatable...CascadeType.REFRESH) @JoinColumn(name = "guide_no", referencedColumnName = "no", insertable = false, updatable...CascadeType.ALL) @JoinColumn(name = "order_no", referencedColumnName = "order_no", insertable = false, updatable...CascadeType.REFRESH) @JoinColumn(name = "sku", referencedColumnName = "sku", insertable = false, updatable
Entity@Tablepublic class ElasticsearchTrash { @Id private int id; // 创建时间 @Column(insertable = false, updatable...DEFAULT CURRENT_TIMESTAMP") private Date ctime; // 修改时间 @Column(nullable = true, insertable = false, updatable
datetime DEFAULT CURRENT_TIMESTAMP COMMENT '创建时间', @Column(name = "create_time", insertable = false, updatable...CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '更新时间', @Column(name = "update_time", insertable = false, updatable
rs = null; try { stmt = conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE
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