unformat partition

first, the partition table Several categories of partitioned tables:1, Range (range) partitionIs the application of a wide range of table partitioning method, which is the range of the value of the column as a partitioning of the conditions, the record is stored in the column value of theRange partition. For example, according to the time division, 2012 1 quarters of data into a

Linux disk partition details, linux disk partition Installing Linux is the first threshold for beginners. In this process, the biggest confusion is to partition the hard disk. Although Linux of various Release versions already provides a friendly graphic interaction interface, many people still feel unable to start. The main reason for this is that you are not cl

Redis3.0 cluster CRC16 algorithm PHP client Implementation method (PHP obtains the Redis partition slot of Redis data in the redis3.0 cluster and obtains the Redis server address of the partition based on the partition slot)

Partition indexes are divided into local indexes and global indexes ). For a local index, each table partition corresponds to an index partition. When the table partition changes, the index maintenance is automatically performed by Oracle. For a global index, you can select whether to

In the previous section we described how to create and use a partitioned table, with an example of placing data from different years in different physical partitions. The specific partitioning method is:1th Small table: Data prior to 2010-1-1 (not including 2010-1-1).2nd Small table: Data from 2010-1-1 (including 2010-1-1) to 2010-12-31.3rd Small table: Data from 2011-1-1 (including 2011-1-1) to 2011-12-31.4th Small table: Data from 2012-1-1 (including 2012-1-1) to 2012-12-31.5th small table: Da

Tags: single-table ext comments List Constrain generated Yes split and easy to useHttp://www.cnblogs.com/zhijianliutang/archive/2012/10/28/2743722.htmlWhen we have a larger amount of data, we need to split the large tables into smaller tables, and queries that only access departmental data can run faster, the rationale being that the data to be scanned becomes smaller. maintenance tasks (for example, rebuilding an index or backing up a table) can also run faster.We can no longer get the

In the previous section we described how to create and use a partitioned table, with an example of placing data from different years in different physical partitions. The specific partitioning method is:1th Small table: Data prior to 2010-1-1 (not including 2010-1-1).2nd Small table: Data from 2010-1-1 (including 2010-1-1) to 2010-12-31.3rd Small table: Data from 2011-1-1 (including 2011-1-1) to 2011-12-31.4th Small table: Data from 2012-1-1 (including 2012-1-1) to 2012-12-31.5th small table: Da

First, what is table partitioningIn layman's terms, a table partition is a large table, divided into several small tables according to the conditions. mysql5.1 started supporting data table partitioning. For example, if a user table has more than 6 million records, you can partition the table according to the date of storage, or partition the table according to t

Tags: mysql partition mysql optimized partition optimized partition operationOne, partition operation 1. To change a table without partitions to a partitioned tableALTER TABLE trb3 PARTITION BY KEY(id) PARTITIONS 2;2. Deleting a partitio