• The REORG TABLE step between two scenarios will establish the clustering order.

    两个场景之间REORG TABLE步骤建立聚集顺序

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  • In DB2 9, the default compression dictionary directive for the REORG TABLE command is KEEPDICTIONARY.

    DB 29中,REORG TABLE命令中的默认压缩字典指令是KEEPDICTIONARY

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  • Reorg in Progress 0x400 This is a transient state that is only in effect during a reorg operation. Issue a reorg TABLE command.

    reorginProgress0x400一种进行重组(reorg)操作期间有效的临时状态

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  • However, it is not so easy for spatial data given that the DB2 REORG TABLE command does not understand spatial indexes due to their complex nature.

    然而,如果由于空间索引复杂性质导致DB 2 REORG TABLE命令理解空间索引,事情不会那么容易

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  • The following REORG example reorganizes the customer table using the system temporary tablespace TEMPSAPCE1 as a work area to store the intermediate results.

    下列 REORG示例重新组织客户,并使用系统临时表空间 TEMPSAPCE1作为工作区域存储中间结果

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  • This differs from global indexes where each global index has its own object, allowing greater flexibility in table space placement and support for REORG for an individual global index.

    不同全局索引每个全局索引自己对象,其提供灵活空间定位能力支持单个全局索引REORG操作。

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  • Because new rows are inserted in the part of the table that contains rows with similar values, data remains clustered without the need to run the REORG utility.

    由于中具有近似值行附近的位置,因此数据仍然是聚合的,而不需要运行REORG实用程序

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  • Therefore, REORG usually produces a dictionary that is more representative of the data in the entire table space or partition.

    因此REORG常常可以产生能代表整个空间分区中的数据字典

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  • In the case of the SIBOWNER table, there's only a single row, so there's no "related data" to try and place close together; it should be relatively apparent why no reorg is required.

    sibowner情况下,由于只有单个因此存在需要试验紧密放在一起相关数据”;不需要重组原因应该相对明显的。

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  • In DB2 9.1, the compression takes effect only after the table dictionary is built, which is usually during the table REORG phase.

    DB 2 9.1中,只有建立字典之后(表字典通常reorg阶段建立的),压缩才能生效

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  • At last, a true low-overhead online table reorg capability.

    最后一个真正低开销在线表格重组功能

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  • The "Reorg recommended" column identifies the data type alterations that require table reorganization before a table can again be accessed (SQLSTATE 57016).

    “需要重组表示这种数据类型修改是否要求在访问之前进行表重组(SQLSTATE 57016)。

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  • If a table is dropped, its segments become immediately available for reuse at the COMMIT point, without requiring the REORG utility to be executed.

    如果一个删除执行COMMIT之际,立即可以其他表所用,而不需要执行REORG实用程序

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  • The table dictionary is built only when a REORG is performed, after which the data in the table can be compressed.

    只有执行 REORG时候构建字典之后便可以压缩中的数据

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  • When a table has been reorganized with the reorg utility.

    REORG实用程序重新组织时。

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  • The following examples illustrate partition-level REORG on a table that has no global indexes.

    以下例子阐明了如何在全局索引应用分区级别reorg

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  • Both the RUNSTATS and REORG utilities use log files when moving table data around.

    到处移动数据时,RUNSTATSREORG实用程序使用日志文件

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  • All kinds of DB2 catalog statistics describe the table space condition, and IBM suggests thresholds as to when the REORG should occur. There are many downsides to reorgs.

    各种DB 2目录统计信息描述空间状况IBM建议REORG出现的情况作为阈值

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  • The following REORGCHK command examines whether the REORG is required and also updates the statistics on table bench.customer.

    下列REORGCHK命令检查是否需要REORG,并且更新关于bench .customer的统计信息

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  • This is accomplished by specifying the COMPRESS YES option in the CREATE TABLESPACE statement, and then executing either the LOAD or REORG utility on the table space.

    通过CREATEtablespace语句中指定COMPRESSYES选项然后空间执行LOADREORG实用程序来实现的。

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  • In most cases, ALTER SET DATA TYPE requires table reorganization (reorg) because it changes the physical row format.

    大多数情况下ALTERSETDATATYPE需要对执行重组(reorg),因为修改物理格式

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  • A third problem can occur when performing RUNSTATS or REORG on your table.

    执行RUNSTATSREORG时,可能出现第三个问题

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  • This provided some improvement on the table reorg problem, because you could use these options to perform a partial reorganization in the background without taking the table offline.

    重组问题提供了一些改进因为可以使用这些选项后台执行一个部分重组而不需要让处于脱机状态

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  • Additionally, DSNACCOX with DB2 10 has specific code to reduce the REORG requirements for table Spaces residing on SSDs.

    另外DB 210DSNACCOX具有特定的代码降低驻留SSD上的磁盘空间REORG需求

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  • Generally, after a redistribution of a database partition group, you need to perform an offline table reorg, index recreation (if necessary), and runstats on the redistributed table.

    通常数据库分区分发之后,需要分发的表上执行离线table reorgindexrecreation(必要时)runstats

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  • The script below will scan for AW fact tables named using the wildcard expression % _measures and scripts ALTER table and REORG commands.

    以下脚本使用通配符表达式% _ MEASURES以及脚本alterTABLEREORG命令扫描指定aw事实

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  • If you use the offline table reorg or rowcompestimate option in the inspect tool, data in the table is fully compressed.

    如果inspect工具使用离线table reorgrowcompestimate选项,则中的数据完全压缩

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  • Each of these operations: redistribute, table reorg, index create, and runstats require scanning the table data once.

    这些操作redistributetable reorgindexcreaterunstats每个操作都需要扫描一次数据

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  • For other interfaces, the sampling data (used for building the ADC dictionary) remains uncompressed, as seen in Figure 1, until an offline table reorg is performed.

    对于其他接口如图1所示,抽样数据(用于构建adc字典)直到执行离线table reorg时才被压缩

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  • Compact on is the default for the redistribute utility, where it performs space compaction much like an offline table reorg does.

    COMPACTON分发实用程序默认选项,离线table reorg那样执行空间压缩

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