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Download OCP Oracle Database 11g Administration II Exam Guide: Exam by Bob Bryla PDF

Posted On April 12, 2017 at 4:35 am by / Comments Off on Download OCP Oracle Database 11g Administration II Exam Guide: Exam by Bob Bryla PDF

By Bob Bryla

Whether you may have very little wisdom of T-SQL, starting T-SQL 2008 will deliver you as much as intermediate point and educate you top practices alongside the best way. You’ll methods to write code to help you to accomplish the best-performing functions possible.You’ll locate an advent to databases, normalization, and SQL Server administration Studio. You’ll know the way information is saved in a database and how to use not less than one of many to be had instruments to get to that data.Each next bankruptcy teaches a side of T-SQL, construction at the talents discovered in earlier chapters. workouts are integrated in each one bankruptcy as the basically option to research T-SQL is to write down a few code.This ebook will do greater than simply provide the syntax and examples. it is going to educate you innovations that will help you keep away from universal blunders and create powerful and well-performing code.Imparts top practices for writing T-SQL
Helps readers steer clear of universal errors
Shows tips to write scalable code that yields reliable performance

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Read or Download OCP Oracle Database 11g Administration II Exam Guide: Exam 1Z0-053 PDF

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OCP Oracle Database 11g Administration II Exam Guide: Exam 1Z0-053

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Archived Log Files Oracle Database can operate in one of two modes: ARCHIVELOG or NOARCHIVELOG mode. When the database is in NOARCHIVELOG mode, the circular reuse of the redo log files (also known as the online redo log files) means that redo entries (the contents of previous transactions) are no longer available in case of a failure to a disk drive or another media-related failure. Operating in NOARCHIVELOG mode does protect the integrity of the database in the event of an instance failure or system crash, because all transactions that are committed but not yet written to the datafiles are available in the online redo log files only.

The default value is 1 (low I/O overhead). Because this is a dynamic parameter, you may set this to a low value during the day and set it higher overnight (assuming you’re not working a 24-hour shop), whenever a disk-rebalancing operation must occur. ASM_DISKSTRING The ASM_DISKSTRING parameter specifies one or more operating system dependent strings to limit the disk devices that can be used to create disk groups. If this value is NULL, all disks visible to the ASM instance are potential candidates for creating disk groups.

Remove the locks on the affected rows in the table. ■ Remove the process ID of the disconnected process from the list of active processes. PMON will also interact with the listeners by providing information about the status of the instance for incoming connection requests. DBWn The database writer process, known as DBWR in older versions of Oracle, writes new or changed data blocks (known as dirty blocks) in the buffer cache to the datafiles. Using an LRU (Least Recently Used) algorithm, DBWn writes the oldest, least active blocks first.

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