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https://dev.mysql.com/doc/refman/5.7/en/blob.html
For security and other reasons, it is usually preferable to do so using application code rather than giving application users the FILE privilege. A BLOB is a binary large object that can hold a variable amount of data. These differ only in the ...
https://dev.mysql.com/doc/refman/5.7/en/charset-collation-coercibility.html
A “system constant” (the string returned by functions such as USER() or VERSION()) has a coercibility of 3. In the great majority of statements, it is obvious what collation MySQL uses to resolve a comparison operation. For example, in the ...
https://dev.mysql.com/doc/refman/5.7/en/common-errors.html
This section lists some errors that users frequently encounter when running MySQL programs. Although the problems show up when you try to run client programs, the solutions to many of the problems involves changing the configuration of the MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/communication-errors.html
If the log_error_verbosity system variable is set to 3, you might find messages like this in your error log: [Note] Aborted connection 854 to db: 'employees' user: 'josh' If a client is unable even to connect, the server increments the ... If ...
https://dev.mysql.com/doc/refman/5.7/en/compatibility.html
We are not afraid to add extensions to SQL or support for non-SQL features if this greatly increases the usability of MySQL Server for a large segment of our user base. This section describes how MySQL relates to the ANSI/ISO SQL standards. MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/controlling-query-plan-evaluation.html
A more flexible method for query optimization enables the user to control how exhaustive the optimizer is in its search for an optimal query evaluation plan. The task of the query optimizer is to find an optimal plan for executing an SQL query.
https://dev.mysql.com/doc/refman/5.7/en/date-and-time-types.html
This is useful when you want to store a “possibly wrong” value which the user has specified (for example, in a web form) in the database for future processing. The date and time data types for representing temporal values are DATE, TIME, ...
https://dev.mysql.com/doc/refman/5.7/en/deploy-mysql-nonlinux-docker.html
Other platforms are not supported, and users running the MySQL Docker images from Oracle on them are doing so at their own risk. Warning The MySQL Docker images provided by Oracle are built specifically for Linux platforms. This section discusses ...
https://dev.mysql.com/doc/refman/5.7/en/error-message-elements.html
As just illustrated, the client may display the error message so the user can take corrective measures. This section discusses how error messages originate within MySQL and the elements they contain. Error Message Sources Error Message Elements ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-message-compression.html
Compression for messages sent in the group happens at the group communication engine level, before the data is handed over to the group communication thread, so it takes place within the context of the mysql user session thread. For messages sent ...