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Provide in-depth monitoring of hardware resources, such as instrumentation, reports and so on, can help users tune SQL Server, improve the play of hardware resources and ensure the healthy operation of the system. SSMs has been further enhanced to provide more features, policies, reports, etc. to help users manage the database. The primary Data Service (MDS) is provided, and master
Cattle and cattle desktop management on the issue of weather settings, has become a hot topic, many users are asking about the software weather How to modify the city, on this issue, I put the tutorial to everyone. Previous versions, cattle and cattle desktop management masters are based on IP address to get the weather, so many users of the weather that block o
[Oracle] Data Guard series (4)-creating a physical standby database without stopping the master database needs to create a physical standby database of DG for a 24x7 production database, the master database must not be shut down. At first, it was impossible. Later, I checked the document and used the rman duplicate com
Docker container data management and operation tutorial, docker container Data Management Docker data volumes What is a data volume? Features of
Course ObjectivesOracle Video tutorial, wind Brother this set of Oracle Tutorials Training Learning bbed, data blocks, including in-depth analysis of Oracle data storage architecture, tablespaces (tablespace), segments (segments), zones (Extent), database blocks (db Block),
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. 3. Insert tablespace Invoke the Data Pump utility to plug the set of tablespaces into the primary database. Redo data will be generated and applied at the standby site to plug the tablespace into the standby database. Call the Data Pump to insert the tablespace to the master database. Then, the slave database will ob
Apply before you can change the log files. 1. If the redo application is running, you must cancel the redo application after you change the log file. 2. If the STANDBY_FILE_MANAGEMENT initialization parameter is set to AUTO, change the value to MANUAL. If the STANDBY_FILE_MANAGEMENT initialization parameter is set to AUTO, change it to MANUAL. 3. Add or drop an online redo log file: 3. add or delete online redo log files: Bytes To add an online redo log file, use a SQL statement such as this: A
ORACLE space management experiment 1: exploring the structure of the data file header under LMT tablespace management and the record directory (?) in the bitmap Area (?) [] The experiment is divided into two steps: 1. the local tablespace managed by LMT. The structure analysis of the
):Oracle use Thedata dictionary (tables in the SYS schema) to track allocated and free extentsfor tablespaces "Dictionary managed" mode. Free space isrecorded in the SYS. fet$ table, and used space in the SYS. uet$ table. Wheneverspace is required in one of these tablespaces, the ST (space transaction) Enqueue latch must are obtained to do Inse RTS and deletes agianst these tables. As only one process can acquire the ST Enque at a given time, this oft
Management of 1.Oracle Tables Naming conventions for table and column names: Must start with a letter; Length cannot exceed 30 characters; Cannot use Oracle's reserved words; Use only the following characters: A-Z, A-Z, 0-9, $, # etc. Data types supported by Oracle: Character type
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1. Object definition When the Create command is executed to create an object, Oracle stores the object definition in the data dictionary. 03:31:40 sql> Select Dbms_metadata.get_ddl (' TABLE ', ' DEPT ') DDL from DUAL; Ddl -------------------------------------------------------------------------------- CREATE TABLE "SCOTT". " DEPT " ("DEPTNO" number (2,0), "Dname" VARCHAR2 (14 2, viewing the space oc
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The experiment is divided into two steps:1. Local tablespace managed by LMT. Structure Analysis of data files during Automatic ASSM segment ManagementORACLE 11G: 0 operating system block, 1-2 is the file header, 3-is the bitmap information. Data is stored at the beginning and end of 128-it may be the data of the segment header or segment.When
To delete an archive file of the master database in the Maximum Availability and Maximum Performance modes of Oracle Data Guard, the archive file must be deleted after the backup database is applied. For Maximum Protection mode, logs in this mode are written to the master database and the slave database at the same
set to MANUAL or AUTO: Drop the tablespace from the primary database:1. delete a tablespace from the master databaseSQL> drop tablespace tbs_4; SQL> ALTER SYSTEM SWITCH LOGFILE; Make sure that Redo Apply is running (so that the change is applied to the standby database). If the following query returns the MRP or MRP0 process, Redo Apply is running.Make sure that the redo application is running, so that the slave database will apply these changes.
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