New Technical Director: Discovered who is using delete to delete data and directly fired!
delete Mysql MySQL delete MySQL MySQL MySQL MySQL MySQL InnoDBMyISAMMemory BMySQL MySQL 16KBMySQL MySQL B B MySQL MySQL MySQL ACID MySQL MySQL MySQL MySQL deletetruncatedrop drop > truncate >> DELETEDELETEDELETE from TABLE_NAME where xxxDELETE DMLtrigger InnoDB DELETEmysql delete ** DELETErollback segementcommit;delete from table_name,MyISAM InnoDB ;delete from table_name where xxx , InnoDBMyISAM;delete optimize table table_name InnoDBMyISAM deleteoptimize table SQLMcsjdemodemo2select concat(round(sum(DATA_LENGTH/1024/1024),2),'M') as table_size from information_schema.tables where table_schema='csjdemo' AND table_name='demo2';Sizeoptimize table demo2sizedelete redoundo rollback) dropDrop table TablenameDDLTruncate drop table table_name InnoDB MyISAM; drop (constrain)(trigger)(index); /, invalid drop deletetruncatedroptruncateDDL rollback segment trigger truncate table table_name InnoDBMyISAM truncate tabledrop table creat,create table drop table;truncate auto_incrementMyISAMtruncateauto_increment1deleteauto_incrementInnoDBtruncateauto_increment1deleteauto_incrementdeleteMySQLauto_increment1InnoDB auto_incrementdelete auto_increment1auto_increment SELECT 1+MAX(ai_col) FROM t truncateDELETE DELETEDELETEInnoDBdeletedeleteInnoDBInnoDBtablespace > segmentinode > Extent >PageInnodbsegmentextentsegmentFREE_PAGE32page32page1extent1extent32MBextent32MB4extentMySQLdata pageMySQL CrashInnodbInnoDBUndo****MySQLinformation_schema****innodb_file_per_table=1table_name...
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62 years ago, the United States sent a chimpanzee into space and after returning to Earth, it discovered something was wrong
After World War II, the United States and the Soviet Union began the Cold War, competing in multiple fields, including space. The Space Race began in the early 1960s, when the Soviet Union took the lead in completing the first manned space flight mission and successfully put Yuri Gagarin into orbit...
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Virus Nucleic acid test positive! Another confirmed case has been discovered! Quarantined!
According to the website of the Shaanxi Provincial Center for Disease Control and Prevention on July 10th:On July 4, Xi'an City, Shaanxi Province reported a suspected case of Monkeypox virus infection. The case was tested by provincial and municipal centers for disease control and rechecked by China Center for Disease Control, and the laboratory test result was positive for Monkeypox virus Nucleic acid test...
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Another confirmed case has been discovered! Symptoms of fever! Official reminder
Source: China News ServiceAccording to the website of the Shaanxi Provincial Center for Disease Control and Prevention on July 10th:On July 4th,A case of suspected Monkeypox virus infection in Xi'an, Shaanxi ProvinceThe case was tested by provincial and municipal CDC laboratories and rechecked by China CDC, and the laboratory test result was positive for Monkeypox virus Nucleic acid test. On July 8th, after consultation with a clinical expert group,Diagnosed as a confirmed case of Monkeypox virus infection...
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China has discovered thousands of kilometers of rare earth ore belts in the Himalayas. How can artificial intelligence assist in mining?
The the Himalayas is the highest mountain range in the world and one of the most difficult regions to explore on the earth.However, Chinese scientists have discovered a potential rare earth deposit here, with a length of 1000 kilometers, which may be the world's largest rare earth reserve...
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A Case of Monkeypox Discovered in Shenyang City, Liaoning Province
On June 29, a suspected case of Monkeypox virus infection was reported in Shenyang, Liaoning Province. The case was tested by the laboratories of the Centers for Disease Control and Prevention in Liaoning Province and Shenyang City and rechecked by the China Center for Disease Control and Prevention...
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A Lost World Discovered in Rocks Billion Years ago
Science and Technology Daily, Beijing, June 8 (Reporter Zhang Mengran) A study published by Nature magazine on the 7th reported a new class of steroids found in ancient rocks and confirmed the long prehistoric history of complex Eukaryote. The discovery of this "lost world" also confirmed the prediction of Nobel Prize winner Konrad Emil Bloch about the existence of primary steroid molecules...
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Why is quantum mechanics scary? What have scientists discovered?
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Qualcomm's chip backdoor has been discovered, which may be the real reason why Oppo chips were forced to terminate
If you like this article, please click on theFollowNot long ago, Chinese mobile phone manufacturer OPPO announced the cessation of its chip research and development workSuddenly, the industry was shocked. After all, Chinese chips have been subject to US sanctions for a long time, and after Huawei, OPPO is a strong research chip company...
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Astronomers have discovered the largest reservoir in the universe, equivalent to 140 trillion times the amount of water in Earth's oceans
Astronomers have discovered a huge reservoir near a distant supermassive black hole, with a water content equivalent to 140 trillion times that of Earth's oceans. It is the largest known water storage in the universe and 4000 times that of the Milky Way...
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Why do humans cheat? Do you have these six characteristics of the "cheating gene" discovered by science?
Why do humans cheat? Do you have these six characteristics of the "cheating gene" discovered by science?...
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