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https://dev.mysql.com/doc/refman/9.7/en/logical-operators.html
Table 14.5 Logical Operators Name Description AND, && Logical AND NOT, ! Negates value OR, || Logical OR XOR Logical XOR In SQL, all logical operators evaluate to TRUE, FALSE, or NULL (UNKNOWN). In MySQL, these are implemented as 1 (TRUE), 0 ...
https://dev.mysql.com/doc/refman/9.7/en/performance-schema-mysql-option-table.html
To be shown in this table, a component or plugin must be written and compiled with support for the Option Tracker component. Not all MySQL components and plugins currently available provide such support. See Section 7.5.9.2, “Option Tracker ...
https://dev.mysql.com/doc/refman/9.7/en/faqs-cjk.html
This set of Frequently Asked Questions derives from the experience of MySQL's Support and Development groups in handling many inquiries about CJK (Chinese-Japanese-Korean) issues. What problems should I be aware of when working with the Big5 ...
https://dev.mysql.com/doc/refman/9.7/en/source-installation.html
Building MySQL from the source code enables you to customize build parameters, compiler optimizations, and installation location. For a list of systems on which MySQL is known to run, see ...
https://dev.mysql.com/doc/refman/9.7/en/srjs-webassembly.html
This section discusses compilation of C, C++, or other code to WebAssembly, incorporating the compiled code into a MySQL library, and using such a library in MySQL JavaScript programs. In the examples that follow, to compile C code to WebAssembly, ...
https://dev.mysql.com/doc/refman/9.7/en/json-utility-functions.html
This section documents utility functions that act on JSON values, or strings that can be parsed as JSON values. JSON_PRETTY() prints out a JSON value in a format that is easy to read. JSON_STORAGE_SIZE() and JSON_STORAGE_FREE() show, respectively, ...
https://dev.mysql.com/doc/refman/9.7/en/json-validation-functions.html
MySQL supports validation of JSON documents against JSON schemas conforming to Draft 4 of the JSON Schema specification. This can be done using either of the functions detailed in this section, both of which take two arguments, a JSON schema, and a ...
https://dev.mysql.com/doc/refman/9.7/en/macos-installation-launchd.html
macOS uses launch daemons to automatically start, stop, and manage processes and applications such as MySQL. The md5 checksum of a file containing the above snippet is d925f05f6d1b6ee5ce5451b596d6baed. To enable the launchd service, you can either: ...
https://dev.mysql.com/doc/refman/9.7/en/spatial-relation-functions-mbr.html
MySQL provides several MySQL-specific functions that test the relationship between minimum bounding rectangles (MBRs) of two geometries g1 and g2. The return values 1 and 0 indicate true and false, respectively. The MBR (also known as the bounding ...
https://dev.mysql.com/doc/refman/9.7/en/charset-unicode-sets.html
This section describes the collations available for Unicode character sets and their differentiating properties. MySQL supports multiple Unicode character sets: utf8mb4: A UTF-8 encoding of the Unicode character set using one to four bytes per ...