oracle database sizing estimation

Graphics Build Library: 1. Determine if there is a library to buildView $ORACLE _base/admin/and $oracle_base/oradata 2. Run DBCA3. Select New Library--general purpose (Universal Library) template--global database name: library name. Domain name, you can use only the library name--sid case-sensitive ——......—— Data path selection, the template default is $oracle_base/ oradata/dababase--The pat

...Processing Object Type Table_export/table/table_dataTotal estimation using BLOCKS method:64 KBProcessing Object Type Table_export/table/tableProcessing Object Type Table_export/table/grant/owner_grant/object_grantProcessing Object Type Table_export/table/index/indexProcessing Object Type Table_export/table/constraint/constraintProcessing Object Type Table_export/table/index/statistics/index_statisticsProcessing Object Type Table_export/table/const

physical design is to improve the performance of the system. The parameters of the whole physical design can be adjusted according to the actual operating conditions.Table and index data quantity estimation and physical storage parameters settingThe storage capacity estimates for tables and indexes are determined based on their record length and the maximum number of records estimated. The header cost of the data block and the header overhead of the

. To use CBO well and maximize the efficiency of SQL statements, the timeliness of statistical data must be ensured. Statistical information can be generated using the full calculation method and sampling estimation method. SQL example: Full calculation method: Analyze table ABC compute statistics; Sample estimation method (sample 20%): Analyze table ABC estimate statistics sample 20 percent; The full Calcu

'/home/oracle/exp '; Directory created. Elapsed: 00:00:00. 07 17:53:24 SYS @ test1> grant read and write on directory exp_dir to test1; Grant succeeded. Elapsed: 00:00:00. 06 17:53:39 SYS @ test1>! Mkdir ~ /Exp Export schema: [Oracle @ rh6 exp] $ expdp test1/test1 directory = exp_dir dumpfile = test. dmp logfile = test. log schemas = test1Export: Release 11.2.0.1.0-Production on Thu Jul 10 17:59:05 2014 C

First, IntroductionUltra-large systems are characterized by: 1, the number of users are generally more than million, and some more than tens of millions of data, the database generally more than 1TB; 2, the system must provide real-time response functions, the system needs to operate without downtime, the system requires a high availability and scalability. In order to meet the above requirements, in addition to the need for superior performance of th

for MigrationImpdp ityy_z1_w/z1_w123 directory = DATA_PUMP_DIR network_link = zqxt logfile = ityy. logThe execution result is as follows:Import: Release 11.2.0.1.0-Production on Friday June 28 16:52:03 2013Copyright (c) 1982,200 9, Oracle and/or its affiliates. All rights reserved.Connect to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit Produc

Ultra-Large system features: 1, the number of users are generally more than million, and some more than tens of millions of data, the database generally more than 1TB; First, IntroductionUltra-large systems are characterized by:1, the number of users are generally more than million, and some more than tens of millions of data, the database generally more than 1TB;2, the system must provide real-time respons