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https://dev.mysql.com/doc/refman/5.7/en/faqs-sql-modes.html
This makes it easier to use MySQL in different environments and to use MySQL together with other database servers. Is the mode dependent on the database or connection? A mode is not linked to a particular database. What is the default server SQL ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-background.html
Specifically, replicated databases have to deal with the fact that they require maintenance and administration of several servers instead of just one. Therefore, the ultimate challenge is to fuse the logic of the database and data replication with ...The most common way to create a fault-tolerant system is to resort to making components redundant, in other words the component can be removed and the system should continue to operate as ...
https://dev.mysql.com/doc/refman/5.7/en/identifier-length.html
This applies to identifiers in table definitions that are stored in .frm files and to identifiers stored in the grant tables in the mysql database. NDB Cluster imposes a maximum length of 63 characters for names of databases and tables. See Section ... The following table describes the maximum length for each type of ...
https://dev.mysql.com/doc/refman/5.7/en/identifiers.html
Certain objects within MySQL, including database, table, index, column, alias, view, stored procedure, partition, tablespace, and other object names are known as identifiers. Special characters in database and table names are encoded in the ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-tables-table.html
NAME The name of the table, preceded by the schema (database) name where appropriate (for example, test/t1). Names of databases and user tables are in the same case as they were originally defined, possibly influenced by the lower_case_table_names ... The INNODB_SYS_TABLES table provides metadata about InnoDB tables, equivalent to the information from the SYS_TABLES table in the InnoDB data ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-benefits.html
InnoDB tables have the following benefits: If the server unexpectedly exits because of a hardware or software issue, regardless of what was happening in the database at the time, you don't need to do anything special after restarting the database.
https://dev.mysql.com/doc/refman/5.7/en/innodb-checkpoints.html
InnoDB flushes modified database pages from the buffer pool in small batches. It knows that all modifications to the database before the label are present in the disk image of the database. Then InnoDB scans the log files forward from the ... Making ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-compression-syntax-warnings.html
The “non-strict” behavior lets you import a mysqldump file into a database that does not support compressed tables, even if the source database contained compressed tables. To import the dump file into a new database, and have the tables ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-file-format-compatibility-checking.html
The parameter innodb_file_format_check affects only what happens when a database is opened, not subsequently. Conversely, the parameter innodb_file_format (which enables a specific format) only determines whether or not a new table can be created in ... To prevent possible crashes or data corruptions when InnoDB opens an ib-file set, it checks that it can fully support the file formats in use within the ib-file ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-multi-versioning.html
Internally, InnoDB adds three fields to each row stored in the database: A 6-byte DB_TRX_ID field indicates the transaction identifier for the last transaction that inserted or updated the row. Update undo logs are used also in consistent reads, but ...It keeps information about old versions of changed rows to support transactional features such as concurrency and ...