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https://dev.mysql.com/doc/refman/5.7/en/source-installation-layout.html
See Table 2.3, “MySQL Installation Layout for Generic Unix/Linux Binary Package”, and Section 2.3.1, “MySQL Installation Layout on Microsoft Windows”. By default, when you install MySQL after compiling it from source, the installation step ...
https://dev.mysql.com/doc/refman/5.7/en/spatial-types.html
MySQL spatial extensions enable the generation, storage, and analysis of geographic features: Data types for representing spatial values Functions for manipulating spatial values Spatial indexing for improved access times to spatial columns The ...
https://dev.mysql.com/doc/refman/5.7/en/start-slave.html
Important The password that you set using START SLAVE is masked when it is written to MySQL Server’s logs, Performance Schema tables, and SHOW PROCESSLIST statements. START SLAVE [thread_types] [until_option] [connection_options] [channel_option] ...
https://dev.mysql.com/doc/refman/5.7/en/string-functions-charset.html
In such expressions, the table character set is used for CONV() or HEX() results, regardless of connection character set. MySQL has many operators and functions that return a string. This section answers the question: What is the character set and ...
https://dev.mysql.com/doc/refman/5.7/en/string-functions.html
For functions that operate on string positions, the first position is numbered 1. For functions that take length arguments, noninteger arguments are rounded to the nearest integer. ASCII(str) Returns the numeric value of the leftmost character of ...
https://dev.mysql.com/doc/refman/5.7/en/structured-system-variables.html
(You could also have written --default.key_buffer_size=256K.) In addition, the server creates a second key cache named extra_cache that has a size of 128KB, with the size of block buffers for caching table index blocks set to 2048 bytes. A ...
https://dev.mysql.com/doc/refman/5.7/en/sys-execute-prepared-stmt.html
Configuration Options execute_prepared_stmt() operation can be modified using the following configuration options or their corresponding user-defined variables (see Section 26.4.2.1, “The sys_config Table”): debug, @sys.debug If this option is ... Given an SQL statement as a string, executes it as a prepared ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-file-io-type.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. These views summarize file I/O, grouped by host and event type. By default, ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-file-io.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. By default, rows are sorted by descending total file I/O latency. The ...
https://dev.mysql.com/doc/refman/5.7/en/sys-host-summary-by-stages.html
Rows for which the HOST column in the underlying Performance Schema table is NULL are assumed to be for background threads and are reported with a host name of background. By default, rows are sorted by host and descending total latency. The ...