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Mysql delete the duplicate records, leave only one record

Here I will give a good SQL statement, it can delete the duplicate records and leave the min id reco...
2019-09-19 Mysql Comment
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Mysql master slave sync error: the slave’s relay log is corrupted

If the disk space is not enough, the mysql will not be login or the slave can't to write any data. I...
2019-09-18 Mysql Comment
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MYSQL date function: TO_DAYS() and FROM_DAYS()

1、to_days(date), change the date to a integer number days. mysql> SELECT TO_DAYS(950501); -> 728779 ...
2019-09-11 Mysql Comment
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MYSQL 8.0 ERROR:ERROR 2059: AUTHENTICATION PLUGIN ‘CACHING_SHA2_PASSWORD’ CANNOT BE LOADED

Error Message: error 2059: Authentication plugin ‘caching_sha2_password’ cannot be loaded: /usr/lib6...
2019-09-11 Mysql Comment
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Mysql partition search must scan the first partition Mysql

Mysql partition search must scan the first partition

Mysql partition search optimization basically you should create a first partition that contains valu...
2019-08-21 Mysql Comment
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