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https://dev.mysql.com/doc/refman/5.7/en/faqs-replication.html
On the source, issue the following statement to enable the source to begin processing updates again: mysql> UNLOCK TABLES; A.14.5. Thus, when the update of client A makes it to co-source 2, it produces tables that are different from what you have on ... In the following section, we provide answers to questions that are most frequently asked about MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/fulltext-search.html
A FULLTEXT index definition can be given in the CREATE TABLE statement when a table is created, or added later using ALTER TABLE or CREATE INDEX. Full-text indexes can be used only with InnoDB or MyISAM tables, and can be created only for CHAR, ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-file-format-enabling.html
The innodb_file_format setting is not applicable when using the TABLESPACE [=] innodb_system table option with CREATE TABLE or ALTER TABLE to store a DYNAMIC table in the system tablespace. The innodb_file_format configuration option enables an ...
https://dev.mysql.com/doc/refman/5.7/en/keywords.html
Certain keywords, such as SELECT, DELETE, or BIGINT, are reserved and require special treatment for use as identifiers such as table and column names. Reserved words are permitted as identifiers if you quote them as described in Section 9.2, ...This ...
https://dev.mysql.com/doc/refman/5.7/en/replication-features-reserved-words.html
An example of this is using a table column named virtual on a 5.6 source that is replicating to a 5.7 or higher replica because VIRTUAL is a reserved word beginning in MySQL 5.7. Replication can fail in such cases with Error 1064 You have an error ... You can encounter problems when you attempt to replicate from an older source to a newer replica and you make use of identifiers on the source that are reserved words in the newer MySQL version running on the ...
https://dev.mysql.com/doc/refman/5.7/en/replication-rules.html
For statements affecting databases only (that is, CREATE DATABASE, DROP DATABASE, and ALTER DATABASE), database-level options always take precedence over any --replicate-wild-do-table options. You should not use these options to control which ... If ...
https://dev.mysql.com/doc/refman/5.7/en/password-logging.html
In particular, INSERT or UPDATE statements for the mysql.user system table that refer to literal passwords are logged as is, so you should avoid such statements. (Direct modification of grant tables is discouraged, anyway.) For the general query ...
https://dev.mysql.com/doc/refman/5.7/en/char.html
The length of a CHAR column is fixed to the length that you declare when you create the table. See Section 8.4.7, “Limits on Table Column Count and Row Size”. The following table illustrates the differences between CHAR and VARCHAR by showing ...
https://dev.mysql.com/doc/refman/5.7/en/charset-collation-effect.html
The second column shows the result of the SELECT using the German DIN-1 rule, which says that U-umlaut sorts with U. The third column shows the result of the SELECT using the German DIN-2 rule, which says that U-umlaut sorts with UE.
https://dev.mysql.com/doc/refman/5.7/en/constraint-invalid-data.html
You can select stricter treatment of input values by using the STRICT_TRANS_TABLES or STRICT_ALL_TABLES SQL modes: SET sql_mode = 'STRICT_TRANS_TABLES'; SET sql_mode = 'STRICT_ALL_TABLES'; STRICT_TRANS_TABLES enables strict mode for transactional ...