[Data structure] Hash table Hash table is also called a hash table, which is a linear data structure. In general, the time complexity of o(1) can be used to add, delete, modify and check data. In
Tag: table
[Data Structure] Red Black Tree and Jump Table – (Sortset) – (TreeMap) – (Treeset)
SortSet
An ordered set is actually TreeSet in Java is the only implementation class of SortSet, which is implemented internally through TreeMap; while TreeMap is implemented through red-black
“Data Structure” Chapter 2 Linear Table Teaching Design 3
In this chapter, the total time is divided into Three parts to learn. This is the third part of instructional design.
Part III Linear Table Other Storage Structure Teaching Design
1. Pre-cl
[Data Structure] hash table
HashTable-Hash Table/Hash Table is a data structure that directly accesses the memory storage location based on the key.
It uses a key value function to map the required data to the position in t
[Data Structure] Basic Operations on Single List
1. Initialization
//Create an empty single-linked list LinkList InitiateLinkList( ){ LinkList head; //Head pointer head = malloc(sizeof(node)); //Build a node dynamically, which is the head n
[Data Structure] Linear Table: Python Language Description
1. Linear list Python’s list and tuple adopt the implementation technology of sequence table, which has all the properties of sequence table .
The node of the one-way link table is a two-tupl
Table detailed operation
Detailed table operation:
1. Modify table name:
alter table old table name rename new table name
2. Modify Table engine and character encoding:
alter table table name engine
UTF8_BIN with UTF8_GENERAL_CI. Which sort rule provides faster performance in the MySQL table?
I use the’id’ field – char(22) as the primary key of the MySQL table.
This field is only used to filter unique IDs when adding new users to the table.
For me, it is not important to use utf8
PT-Table-Checksum data consistency use reference
pt-table-checksum is an artifact to check the consistency of MySQL data. With the pt-table-sync tool, it is perfect. There are many articles about this on the Internet, so I won’t introduce too muc
HBase table two data backup methods
Hbase table two data backup methods-import and export examples p> This article will provide two backup methods——
1) Back up a table in hbase based on the class provided by Hbase
2) Fast