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https://dev.mysql.com/doc/refman/9.7/en/can-not-connect-to-server.html
A MySQL client on Unix can connect to the mysqld server in two different ways: By using a Unix socket file to connect through a file in the file system (default /tmp/mysql.sock), or by using TCP/IP, which connects through a port number. A Unix ...
https://dev.mysql.com/doc/refman/9.7/en/cast-functions.html
Table 14.15 Cast Functions and Operators Name Description Deprecated BINARY Cast a string to a binary string Yes CAST() Cast a value as a certain type CONVERT() Cast a value as a certain type Cast functions and operators enable conversion of values ...
https://dev.mysql.com/doc/refman/9.7/en/charset-literal.html
Every character string literal has a character set and a collation. For the simple statement SELECT 'string', the string has the connection default character set and collation defined by the character_set_connection and collation_connection system ...
https://dev.mysql.com/doc/refman/9.7/en/command-line-options.html
Program options specified on the command line follow these rules: Options are given after the command name. An option argument begins with one dash or two dashes, depending on whether it is a short form or long form of the option name. For example, ...
https://dev.mysql.com/doc/refman/9.7/en/communication-errors.html
If connection problems occur such as communication errors or aborted connections, use these sources of information to diagnose problems: The error log. The host cache, which is accessible using the Performance Schema host_cache table. See Section ...
https://dev.mysql.com/doc/refman/9.7/en/data-masking-plugin-functions.html
The MySQL Enterprise Data Masking plugin library includes several functions, which may be grouped into these categories: Data Masking Plugin Functions Random Data Generation Plugin Functions Random Data Dictionary-Based Plugin Functions These ...
https://dev.mysql.com/doc/refman/9.7/en/data-masking-policy-usage.html
Dynamic data masking enables you to conditionally mask column data for specific users or roles. A masking policy is a rule, or set of rules, which determines how a column's data is transformed for access control. A masking policy consists of the ...
https://dev.mysql.com/doc/refman/9.7/en/data-types.html
MySQL supports SQL data types in several categories: numeric types, date and time types, string (character and byte) types, spatial types, and the JSON data type. This chapter provides an overview and more detailed description of the properties of ...
https://dev.mysql.com/doc/refman/9.7/en/date-and-time-type-conversion.html
To some extent, you can convert a value from one temporal type to another. However, there may be some alteration of the value or loss of information. In all cases, conversion between temporal types is subject to the range of valid values for the ...
https://dev.mysql.com/doc/refman/9.7/en/dbug-package.html
The MySQL server and most MySQL clients are compiled with the DBUG package originally created by Fred Fish. When you have configured MySQL for debugging, this package makes it possible to get a trace file of what the program is doing. This section ...