以下示例显示如何使用db2_all命令来更改在 节点配置文件中指定的所有数据库分区上的数据库配置。因为 ; 字符在双引号之内,所以将同时运行请求: db2_all ";DB2 UPDATE DB CFG FOR sample USING LOGFILSIZ 100"
db2_all '<<+1< command':send command to only database partition 1: db2_all '<<-1< command':send command to all database partition except 1: db2_all '||command':to execute command simultaneously across all database partitions: 下面是具体的操作测试: db2_all "db2 "select count(*) from...
现在我们在 DB2CLP 窗口中,连上示例数据库 SAMPLE,在示例数据库中存在表 RHETTE.PROJECT,其有两个索引 PK_PROJE CT 和 XPROJ2,我们要创建索引 PK_PROJE CT 和 XPROJ2 的详细统计信息,可以发出带 AND DETAILED INDEXES ALL 选项的 RUNSTATS 命令。创建索引 PK_PROJECT 和 XPROJ2 的详细统计信息 C:> db2 RUN...
control包含对对象的drop权限,ALL PRIVILEGES则限制在dml一级。db2 => create table test(a varchar(10))DB20000I SQL命令成功完成。db2 => grant all privileges on test to db2user DB20000I SQL命令成功完成。db2 => connect to sample user db2user using db2user 数据库连接信息 数据库服...
This image shows the All Metrics page for an IBM DB2 target type with the Database Monitoring metric category selected, thus displaying the Database Monitoring region on the right side of the All Metrics page. The Database Monitoring region contains the following information: Collection Schedule....
db2 union all 排序 零碎知识点记录 1. 数据库 (1)union 和 union all 都是对sql查询语句取并集 union 去重 union all不去重 (2)数据库驱动: DB2: driverClassName: com.ibm.db2.jcc.DB2Driver url: jdbc:db2://localhost:50000/sample Oracle:
For a mandatory assignment of a DB2 class I'm asked to write o procedure to export "export information about all xxx, delete all xxx and import the information again." where xxx is my table. This procedure has to be as efficiently as possible. I'm quite stuck here, quite naively I ...
Rich Seeley
DB2 UNION ALL是一种用于合并多个查询结果集的操作符。它将多个SELECT语句的结果集按照列的顺序进行合并,并返回一个包含所有行的结果集。UNION ALL不会去重,即使有重复的行也会全部返回。 然而,使用DB2 UNION ALL可能会降低查询性能,主要有以下几个原因: 数据量增加:当使用UNION ALL操作符时,DB2需要将多个查询结果...
DB2sql——insert all与insert first用法讲解与实例 1、建测试表CREATETABLEEDW_INT ( AGMT_NOVARCHAR2(40BYTE)NOTNULL, AGMT_SUB_NOVARCHAR2(4BYTE)NOTNULL, NEED_REPAY_INTNUMBER(22,2), CURR_PERIODNUMBER(4)NOTNULL);CREATETABLEEDW_INT_1 (