logical database design

Oracle442 application scenarios ---------- database logical Object Management ----------------- Database logical Object Management -------------------- ORACLE basic data types (also called built-in data types built-in datatypes) can be divided: string type, numeric type, date type, LOB type, long raw RAW type, ROWID

First, create a physical standby database. Reference: After creating a physical standby database, it is best to create your own spfile Stop the redo application on the physical standby Database:Alter database recover managed STANDBY database cancel;When logminer is generated on the master

OracleDG logical standby database fault -- MAXProcesses system environment: Operating System: RedHatEL6Oracle: Oracle11gR2DataGuard environment: 10: 29: 58SYS @ test1selectdbid, name, database_role, protect OracleDG logical standby database fault -- MAXProcesses system environment: Operating System: RedHatEL6Oracle: Or

Oracle 11.2.0.1 logical Standby Library Environment setup After you create a physical standby library and create a physical fallback library, it's best to create your own spfile Stop redo application on physical standby ALTER DATABASE recover managed STANDBY database cancel; Generate Logminer on main Library several switch logs are ignored Execute dbms_logst

Logical backup and Recovery of database (table)IntroducedA logical backup is the process of exporting the structure and data of a data object to a file using the tools export.Logical recovery refers to the process of importing a data object into a database using a backup file when the

Mysqldump is a tool used by mysql for logical backup. During database backup, you need to back up the data and binary files of the database. Mysqldump is a tool used by mysql for logical backup. During database backup, you need to back up the data and binary files of the

create a Directory in the database before using expdp/impdp.Differences between data pump characteristics and traditional export and import1. EXP and IMP are client tool programs that can be used either on the client or on the server. EXPDP and IMPDP are tool programs on the server, and they can only be used on the ORACLE server, cannot be used on the client.2. EXP and IMP are less efficient. EXPDP and IMPDP are more efficient.3. Powerful data pump f

Oracle 11.2.0.1 logical standby database environment setup First, create a physical standby database. After creating a physical standby database, it is best to create a separate spfile. Stop the redo application on the physical standby Database Alter

The column values of the MySQL database are compared, and the actual application proportion of the logical function IF is still the majority. IF you compare the column values of the MySQL database, if you are curious about the actual operations of the logical function IFOracle, the following articles will unveil the my

read the archived log data for extraction. Transmission process for DG Check the parameter configurations of the master database and slave database. No exception is found. A test dg Environment is set up with reference to the dg configuration, and the test environment data is updated in real time. When viewing the dg configuration document, I found that one more immediate statement was used to start the

I. Preface Logical backup and physical backup have their own advantages and disadvantages. Generally, physical Backup recovery is fast, occupies a large amount of space, and logical backup is slow and occupies a small amount of space. The recovery cost of logical backup is high. Ii. Logical backup

Welcome to the Oracle community forum and interact with 2 million technical staff. A range (EXTENT) is a logical unit for database storage space allocation, which consists of continuous data blocks. Each segment is composed of one or more ranges. When all the space in the middle of a section is fully used, ORACLE assigns a new range to the Section. To maintain Welcome to the Oracle Community Forum, interact

First, IntroductionA logical backup is the process of exporting the structure and data of a data object to a file using the tools export.Logical recovery refers to the process of importing a data object into a database using a backup file when the database object is damaged by mistake.Physical backups can be performed in the open state of the

1. Open the SQL query analyzer (t-SQL) 2. Enter the query statement: Alter database name Modify file (name = original logical file name, newname = new logical file name)Alter database name Modify file (name = original logical file name, newname = new

You can use the file_name function to return the logical File Name of the specified file ID. As follows: In the following example, the file name (master database file) with file_id 1 is returned ). Use Master Select File_name ( 1 ) When we restore the database from a backup, the logical File Name