oracle hard partitioning

You can delete or format a partition, resize it, and move your partition. If you don't have any free disk space, you can reduce the size of an existing partition and then use unallocated disk space to create new or expanded partitions to better manage your data. In addition, you can browse the disk and partition properties, set an active partition, change the drive letter, and so on. EASEUS Partition Manager can run from within Windows and also includes an option to create bootable discs that al

#!/bin/bashfunctionfdisk_fun () {fdisk$1This article from "The Dark before Dawn" blog, declined reprint!Linux hard disk partitioning and mounting

For example, if you want a 2G partition, you might enter 2000M or 2048M. In fact, the sections you enter are not recognized as integers in 2G, but 1.9. G, to get the integer g partition under Windows, you have to know a formula that calculates a value that is recognized by Windows as an integer g. The hard disk partitioning technique allows you to pinpoint the entire G partition. Integer g Calculation for

Uninstall all file systems recorded in the/etc/mtab -R If it cannot be uninstalled, it is re-mounted as read-only -D If the uninstalled device is a loop device, release the loop device while uninstalling -T Vfstype Uninstalls only file systems of the specified type -F Forcibly uninstall Hard Disk

operating system. Partition format "Format is equivalent to playing on the white Paper grid," and this partition format is like this "lattice" style, different operating systems play "lattice" way is not the same, the current Windows used in the partition format mainly FAT16, FAT32, NTFS, Almost all of these operating systems support FAT16. However, the FAT16 partition format of the hard disk is actually inefficient, so today the partition format i

, and other disks we normally see in the operating system. 2. Partition format "Format is equivalent to playing on the white Paper grid," and this partition format is like this "lattice" style, different operating systems play "lattice" way is not the same, the current Windows used in the partition format mainly FAT16, FAT32, NTFS, Almost all of these operating systems support FAT16. However, the FAT16 partition format of the hard disk is actually i

command for a process with PID 789 is: Pstree 789Kill command; Sends a signal to one or more processes, sending a terminating signal by default.usage: Terminate the command for a process with PID 3852: Kill 3852Kill-9: Kill the command for a process with a PID of 3906 kill-9 3906pgrep command; Find a process by name or other propertyUsage: Find the command for the process named Firefox: pgrep FirefoxPkill command; Send a signal to a process by name or other attributeUsage: the command to kill a

partition GPT partitions (well remembered, Gdisk--gpt are all g) is also recommended to use interactive partitioningGdisk-l list all hard disk partition tablesGdisk-l/DEV/SDB lists the partition table for the specified hard diskGdisk/dev/sdb Partitioning of partitionso Create a GPT partition tableM helpn Create a partitionThe number of sectors starting from the

1. Relationship between the transmission interface of the hard drive and the device file nameAt present, the transmission interface of the hard disk mainly has the following several:IDE interface: The IDE interface uses a wide range of cables, each of which can connect two IDE devices, both of which are distinguished from Master (master) and slave (slave devices). Typically the motherboard will provide two

Introduction of Oracle Partition Oracle partitioning is a technique for handling oversized tables, indexes, and so on. Partitioning is a "divide and conquer" technique that provides scalable performance for large amounts of data by dividing large tables and indexes into manageable chunks, thus avoiding the management o

smaller.Table partitioning is supported starting from Oracle8.0 (MSSQL2005 begins to support table partitioning).Oracle9i partitioning can improve the manageability, performance, and availability of many applications. Partitions can further divide tables, indexes, and indexing tables, allowing for finer-grained management and access to these database objects.

Database partitioning is one of the key functions required by each database. Almost all Oracle databases use the Partition Function to improve query performance. The Oracle 11g Partition Function simplifies the daily management and maintenance of the database, greatly reducing the DBA (Database Design and Management Engineers). The new features provided in

contains historical data, and new data is added to the new partition. 3. Advantages and disadvantages of table partitioning: 1) Improve query performance: Queries on partitioned objects can search only the partitions they care about, improving the retrieval speed. 2) Enhanced usability: If one partition of the table fails, the data of the table on the other partition is still available; 3) Maintenance is convenient: If a partition of the table fa

meaning.Now let's talk about how to create it, and we need to build the partitions so that the data is automatically entered into the corresponding partition.Then we generally build partitions are divided by the time partition, divided well, such as June data, we go to the June partition to find, rather than in all the table to find a piece of data, efficiency will improve a lot.Partition statements are simple,2. Table Analysis3, Oracle data Pump fil

to use partitioned tables:1) The size of the table is more than 2GB.2) The table contains historical data, and new data is added to the new partition.3. Advantages and disadvantages of table partitioningAdvantages:1) Improve query performance: Queries on partitioned objects can search only the partitions they care about and improve the retrieval speed.2) Enhanced usability: If one partition of the table fails, the data for the table on the other partitions is still available;3) Easy maintenance

appears, representing a series of contiguous sets of data blocks.Sql> desc dba_extents; Name Type Nullable Default Comments--------------- ------------- -------- ------- ---------------------------------------------------------Owner VARCHAR2 (x) Y owner of the segment associated with the extentSegment_name VARCHAR2 (x) Y NAME of the SEGMENT associated with the extentPartition_name VARCHAR2 (x) Y partition/subpartition NAME, if any, of the segmentSegment_type VARCHAR2 Y TYPE of the SEGMENTTables

[Oracle] [partition] Big Data Partitioning technology I. Introduction to Oracle partitioningOracle partitioning is a technology that processes ultra-large tables and indexes. Partitioning is a "divide and conquer" technology. By dividing large tables and indexes into small p

Tables can be divided into range, hash, list, and table partitions, and the indexes on them are different from the indexes on the normal table, and Oracle has 2 categories of indexes on the partition table, namely Local index and global index, the following is a summary of the characteristics and limitations of these 2 indexes. Locally indexed Local Index1. Local index must be a partitioned index, the partitionin