Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash code
    61.
    发明授权
    Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash code 失效
    数据库管理装置及其查询操作,包括基于哈希码的密钥范围处理多个数据库操作请求

    公开(公告)号:US06556988B2

    公开(公告)日:2003-04-29

    申请号:US09809253

    申请日:2001-03-16

    IPC分类号: G06F1730

    摘要: A database management system for executing database operations in parallel by a plurality of nodes and a query processing method for it are described. The database management system contains a decision management node for deciding a distribution node for retrieving information so as to analyze a query received from an application program, generate a processing procedure for processing the query, and execute the process and a join node for sorting, merging, and joining the information retrieved by the distribution node. When the query process is executed, the distribution node decided by the decision management node retrieves the information to be processed and the join node decided by the decision management node also obtains the result for the query from the retrieved information. The query result is outputted from an output node and transferred to the application program.

    摘要翻译: 描述用于由多个节点并行执行数据库操作的数据库管理系统和用于其的查询处理方法。 数据库管理系统包含用于确定分发节点以检索信息的决策管理节点,以便分析从应用程序接收到的查询,生成用于处理查询的处理过程,并执行该处理和连接节点进行排序,合并 并且加入由分发节点检索的信息。 当执行查询处理时,由决策管理节点决定的分发节点检索要处理的信息,由决策管理节点决定的连接节点也从检索到的信息中获得查询结果。 查询结果从输出节点输出并传送到应用程序。

    Multiplex type transmitting apparatus
    62.
    发明授权
    Multiplex type transmitting apparatus 失效
    复用型发送装置

    公开(公告)号:US06411631B1

    公开(公告)日:2002-06-25

    申请号:US09542294

    申请日:2000-04-04

    IPC分类号: H04J316

    CPC分类号: H04L12/2854 Y10S370/907

    摘要: A multiplex type transmitting apparatus is arranged to have a plurality of slow signal receive/transmit sections for accommodating a counterpart for a SONET system or an SDH system, a multiplex separation converting section, and a receive/transmit section for a SONET system or SDH system fast signal. The slow or fast signal receive/transmit section includes a receive processing unit on a receive side for receiving the SS bits of the SONET/SDH system signal received from a transmission path, an internal SS bits setting unit for setting the SS bits of the received signal to internal SS bits if the SS bits of the received signal are “10” or “00”, a transmit processing unit on the receive side for transmitting a signal to the multiplex separation converting section as keeping the SS bits as “11” when an AIS-P is transferred, and a transmit processing unit on a transmit side for transmitting the signal from the multiplex separation converting section onto the transmission path as keeping the SS bits identical with the internal SS bits.

    摘要翻译: 复用型发送装置被配置为具有用于容纳SONET系统或SDH系统的对方的多个慢信号接收/发送部分,多路复用分离转换部分和用于SONET系统或SDH系统的接收/发送部分 快速信号。 慢速或快速信号接收/发送部分包括接收侧的接收处理单元,用于接收从传输路径接收的SONET / SDH系统信号的SS位;内部SS位设置单元,用于设置接收到的SS位 如果接收信号的SS位为“10”或“00”,则发送到内部SS位,发送处理单元在接收侧用于将多个分离转换部分的信号作为“SS”位保持为“11” 传送AIS-P,发送侧发送处理单元,用于将信号从多路复用分离转换部发送到传输路径上,以保持SS位与内部SS位相同。

    ATM switch and control method thereof
    63.
    发明授权
    ATM switch and control method thereof 失效
    ATM交换机及其控制方法

    公开(公告)号:US06067654A

    公开(公告)日:2000-05-23

    申请号:US351126

    申请日:1999-07-12

    摘要: An ATM switch including ECC encoder circuits each for generating, for an ATM cell as an information symbol, an ECC check symbol and for adding the ECC check symbol thereto, cell partitioning circuits each for subdividing an information field of an ATM cell into N partial cells, for subdividing a check symbol field into M partial cells, and for assigning an identical routing tag to the obtained partial cells (N+M) partial cell switches for respectively routing the (N+M) partial cells in an independent fashion based on the routing tag, and ECC decoder circuits for receiving the (N+M) partial cells thus routed and for achieving an error correction on the received partial cells.

    摘要翻译: 一种包括ECC编码器电路的ATM交换机,每个用于为ATM信元作为信息符号产生ECC校验符号,并且用于将ECC校验符号添加到其中,每个用于将ATM信元的信息字段细分为N个部分信元的单元划分电路 ,用于将检查符号字段细分为M个部分单元,并为相应的路由标签分配给所获得的部分单元(N + M)部分单元开关,用于分别以(N + M)部分单元以独立方式基于 路由标签和ECC解码器电路,用于接收这样路由的(N + M)个部分小区,并用于在所接收的部分小区上实现纠错。

    System and method for implementing parallel operations in a database
management system
    64.
    发明授权
    System and method for implementing parallel operations in a database management system 有权
    在数据库管理系统中实现并行操作的系统和方法

    公开(公告)号:US6026394A

    公开(公告)日:2000-02-15

    申请号:US148648

    申请日:1998-09-04

    摘要: A database management system for executing database operations in parallel by a plurality of nodes and a query processing method are described. The database management system contains a decision management node for deciding a distribution node for retrieving information so as to analyze a query received from an application program, generate a processing procedure for processing the query, and execute the process, and a join node for sorting, merging, and joining the information retrieved by the distribution node. When the query process is executed, the distribution node decided by the decision management node retrieves the information to be processed and the join node decided by the decision management node also obtains the result for the query from the retrieved information. The query result is outputted from an output node and transferred to the application program.

    摘要翻译: 描述用于由多个节点并行执行数据库操作的数据库管理系统和查询处理方法。 数据库管理系统包含用于确定用于检索信息的分发节点的决策管理节点,以分析从应用程序接收到的查询,生成用于处理查询的处理过程,并执行该处理,以及用于排序的连接节点, 合并和加入由分发节点检索的信息。 当执行查询处理时,由决策管理节点决定的分发节点检索要处理的信息,由决策管理节点决定的连接节点也从检索到的信息中获得查询结果。 查询结果从输出节点输出并传送到应用程序。