tamagotchi 1990

currently has no data, it is an empty data table, we will now add some data.INSERT INTO command to add data:Mysql> INSERT INTO people VALUES (null, ' Anny ', 22, ' 1992-05-22 ');Query OK, 1 row Affected (0.00 sec)Using the Select command to view the table (which is described later), we now look at the data in the People data table:Mysql> SELECT * from people;+----+------+-----+---------------------+| ID | NAME | Age | BIRTHDAY |+----+------+-----+---------------------+| 1 | Anny | 22 | 1992-05-

If you want to partition on a table that has already been built, MySQL prompts for an error if you add the partition using alter:The code is as follows: ERROR 1505 The correct approach is to create a new partitioned table with a consistent structure, then insert into the partition table select * from the original table; Test create partition Table file The code is as follows: CREATE TABLE tr (id INT, name VARCHAR (m), purchased DATE) PARTITION by RANGE (year (purchased)) ( PARTIT

menus, desktop icons, drag-and-click, and Double-tap). But it's true that the graphical user interface is actually Xerox's founding. The 1990s Apple I computer, the first generation of Apple Computer products. In the 80 's, there were many operating systems that affected the future of the PC market in the 1990. With the increasingly complex graphical user interface and the complexity and sophistication of the operating system, the strong and resili

Tags: src technology share Error Action feed section SQL Reference int Introduction The sub-partition is actually separate each partition of each partition table, currently only the range and list partition table can be sub-partition, sub-partition can only be hash or key partition. Sub-partitions can divide the original data into partitions again. First, create sub-partitionsSub-partitions are created by two methods, one is to not define each sub-partition sub-partition name and path is determ

(name, discount_rate, base_integral) VALUES (' Advanced Members ', 7.5, 1000);Insert into Member_category (name, discount_rate, base_integral) VALUES (' Intermediate members ', 8.5, 100);Insert into Member_category (name, discount_rate, base_integral) VALUES (' Ordinary members ', 9.5, 10);Insert into member (Member_num, name, category_id, account, integral, phone, birthday, QQ, email, onaccount, status, Addres S, Tip, start_date, valid_date, password, store_name) VALUES (' 1000001 ', ' Wuyilun

I. Cognition of the constructor functionWhen a class type object is created, the class controls the initialization of the object through one or several special member functions, which are constructors. Its task is to initialize the members of the class object, so the constructor is called when the class object is created or the class object is created.Several features of the constructor:1. The function name and class name must be the same, no return value. 2. When the constructor is not explici

began to write other software. The FSF and Free Software Foundation were established. more engineers and volunteers were invited to write the Software. Finally, GCC is complete. In addition, he wrote more C-function libraries (gnu c library) that can be called and the basic interface BASH shell that can be used to operate the operating system! These are all completed around 1990! In 1985, he and his lawyers drafted a well-known General Public Licens

MySQL sub-partitions and mysql partitionsIntroduction Subpartitions are actually used to separate each partition in each partition table. Currently, only tables with RANGE and LIST partitions can perform subpartitions. subpartitions can only be HASH or KEY partitions. Subpartitions can partition the original data again. 1. Create a subpartition There are two ways to create a subpartition. One is that the name and path of each subpartition are not determined by the partition. The other is to def

,state, split it into two columns#定义一个函数, if the format returns Na,na incorrectly, if you return to the city state list correctly#gsub函数用于替换Get.location {Split.location Error = function (e) return (C (Na, NA))Clean.location if (length (clean.location) > 2){Return (c (Na,na))}Else{Return (clean.location)}}#接着用lapply函数对ufo的Location每一个记录都采用get. Location function for processing, results saved to city.stateCity.state #要把城市和州信息作为不同的两列加入数据框中, the list needs to be converted to matrix#do. The call functi

MySql DATA partition operation-new partition operation, mysql Data Partition added If you want to partition a created table and use alter to add a partition, mysql will prompt an error:Copy codeThe Code is as follows:ERROR 1505 The correct method is to create a new table with partitions with the same structure, and then use insert into Partition Table select * from original table; Create a partition table File Copy codeThe Code is as follows:Create table tr (id INT, name VARCHAR (50), purchased

* 20261 x-cp20261 t.61 20269 x-cp20269 ISO-6937 20273 IBM 273 IBM EBCDIC (Germany) 20277 IBM277 IBM EBCDIC (Denmark-norway) 20278 IBM278 IBM EBCDIC (Finland-sweden) 2 0280 IBM280 IBM EBCDIC (Italy) 20284 IBM284 IBM EBCDIC (Spain) 20285 IBM285 IBM EBCDIC (UK) 20290 IBM290 IBM EBCDIC (Japanese Katakana) 20297 IBM297 IBM EBCDIC (France) 20420 IBM420 IBM EBCDIC (Arabic) 20423 IBM42 3 IBM EBCDIC (Greek) 20424 IBM424 IBM EBCDIC (Hebrew) 20833 x-ebcdic-koreanextended IBM EBCDIC (Korean Extended ) 208

World Wide Web (WWW) In 1989, the World Wide Web protocol written by Tim Berners-Lee was also born. It was originally published in Macworld's March publication and was published again in May 1990. It aims to tell the European Institute of Particle Physics (CERN) that a global hypertext system is the best choice for CERN. It was initially called "mesh". When Berners-Lee wrote code in 1990, the word "World W

1. Definition of QA and QC QA is short for quality assurance, meaning quality assurance in Chinese; QC is in English -->Quality control is short for quality control. According to ISO9000: 2000, QA is defined as "a part of quality management, committed to providing quality requirements will be satisfied with the trust", QC is defined as "a part of quality management, is committed to meeting quality requirements ". The definitions in the standard are concise and d

, base_integral) VALUES (' Platinum Members ', 6.5, 10000); Insert into Member_category (name, discount_rate, base_integral) VALUES (' Senior member ', 7.5, 1000); Insert into Member_category (name, discount_rate, base_integral) VALUES (' Intermediate members ', 8.5, 100); Insert into Member_category (name, discount_rate, base_integral) VALUES (' Ordinary members ', 9.5, 10); Insert into member (Member_num, name, category_id, account, integral, phone, birthday, QQ, email, onaccount, statu

|| 2 | Accountant || 3 | Developer || 4 | Coder || 5 | Director || 6 | Mediator || 9 2 Proffessor || 8 | Programmer || 9 | Developer |+------+------------+9 Rows in Set (0.00 sec) Mysql> SELECT * from employee;+------+------------+-----------+------------+------------+---------+-----------+-------------+| ID | first_name | last_name | start_date | end_date | Salary | City | Description |+------+------------+-----------+------------+------------+---------+-----------+-------------+| 1 | Jason |

SQL Statistics this week, this month, next week, the next month SQL statement/*Table structure Student (s#,sname,sage,ssex)--s# student number, sname student name, Sage birth date, ssex student gender Save some data INSERT into Student values (' ', n ' wwww.111cn.net ', ' 1990-01-01 ', n ' Men ') INSERT into Student values (' ", N ' money electricity ', ' 1990-12-21 ', n ' Men ') INSERT

Each function object has a length property that represents the number of parameters that the function expects to receive. Copy Code code as follows: About the JS object-oriented creation method, Goal: Constructs an order object.Contains three attributes: Date, amount, submitterContains a method: Display string: "XX submitted the amount in XXXX-XX-XX: xxxx order" One factory way Copy Code code as follows: The way of two constructor functions

/ruanjian/mysql/data 2016-08-30 15:56:49 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use--explicit_defaults_for_timestamp server option (the documentation for more details). 2016-08-30 15:56:49 1990 [ERROR] Fatal error:can ' t change to run as user ' MySQL '; Please check this user exists! 2016-08-30 15:56:49 1990 [ERROR] aborting 2016-08-30 15:56:49

If you want to partition on a table that has already been built, MySQL prompts for an error if you add the partition using alter: Copy Code code as follows: ERROR 1505 The correct approach is to create a new partitioned table with a consistent structure, then insert into the partition table select * from the original table; Test create partition Table file Copy Code code as follows: CREATE TABLE tr (id INT, name VARCHAR (m), purchased DATE) PARTITION by R

Django's querysets are cool! In this article I'll explain what querysets is, how it works (if you're already familiar with it, you can skip to the second part), I think you should always return to the Querysets object if you can, so let me talk about how to do it.Querysets's cool . QuerySet is essentially a list of objects for a given model. I say "list" instead of "group" or more formal "set" because it is orderly. In fact, you may already be familiar with how to get querysets, because this i