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- Command Objective Plan 司令部目标计划
- Programmatically, you must hold on to the command object that contains the cached query plan. 从编程上讲,必须始终保持包含缓存查询计划的命令对象。
- Persist the state of a command object (but not any active rowsets). 保持命令对象(而非任何活动行集)的状态。
- Returns a collection of command objects. 返回命令对象的集合。
- Gets or sets a value indicating whether the command object should be visible in a customized interface control. 获取或设置一个值,该值指示此命令对象在自定义界面控件中是否可见。
- The base class for all Command objects is the DbCommand class. 所有Command对象的基类均为DbCommand类。
- Gets or sets a value that indicates whether the command object should be visible in a customized interface control. 获取或设置一个值,指示该命令对象在自定义界面控件中是否应可见。
- Don't use MARS; instead use a separate connection for each command object as you would have before MARS. 不使用MARS;而是对每个命令对象使用独立的连接,就像在MARS之前一样。
- Current information about the modified row is passed to the Command object through the Parameters collection. 有关已修改行的当前信息将通过Parameters集合传递到Command对象。
- You can add multiple statements to the CommandText property of an adapter's command object by delimiting the statements with a semicolon (;). 可以向适配器的命令对象的CommandText属性中添加多条语句,各语句之间用分号(;)分隔。
- The items in a command's parameters collection correspond one-to-one to parameters required for the corresponding command object. 命令的参数集合中的项与相应的命令对象所需的参数一一对应。
- All of the interfaces will be implemented by a dynamic proxy that will delegate method invocations to a corresponding command object. 管理器所给出的对象实例。所有的接口实现通过一个动态的代理委托方法调用相应的命令对象。
- All rows and columns of the named table or tables will be returned when you call one of the Execute methods of a Command object. 当调用Command对象的Execute方法之一时,将返回命名表的所有行和列。
- Each strongly typed command object also supports a CommandType enumeration that specifies how a command string is interpreted, as described in the following table. 每个强类型命令对象还支持指定如何解释命令字符串的CommandType枚举,如下表所述。
- For the SQL Plans and Object Plans caches, the hash table size can be up to 10007 on 32-bit systems and up to 40009 on 64-bit systems. 对于SQL计划和对象计划缓存而言,在32位系统上哈希表大小可达10007,在64位系统上哈希表大小可达40009。
- This message includes the name of the method being called; for example, the Open method of an OLE DB Connection object, or the ExecuteNonQuery method of a Command object. 此消息中包含要调用的方法的名称,例如,OLE DB Connection对象的Open方法或Command对象的ExecuteNonQuery方法。
- Although you can explicitly set the text of a command object, you do not always need to; in many situations, Visual Studio will generate the SQL statements needed. 尽管可以显式设置命令对象的文本,但不总需要这样做;在很多情况下,Visual Studio将生成所需的SQL语句。
- The ADO Command object is used to execute a single query against a database. The query can perform actions like creating, adding, retrieving, deleting or updating records. ADO指令对象的作用是:对一个数据库执行简单的查询语句。通过使用查询语句,我们可以创建、获取、删除或者更新记录信息。
- All business logic is encapsulated in Command objects by applying the Command pattern. 所有的业务逻辑通过应用Command模式来封装在Command对象中。
- Imagery Requirements Objectives Plan 成像要求目标计划