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https://dev.mysql.com/doc/refman/8.0/en/mysql-installer-catalog-dashboard.html
This section describes the MySQL Installer product catalog, the dashboard, and other actions related to product selection and upgrades. Product Catalog MySQL Installer Dashboard Locating Products to Install Upgrading MySQL Server Removing MySQL ...
https://dev.mysql.com/doc/refman/8.0/en/performance-schema-timing.html
This section discusses the available timers and their characteristics, and how timing values are represented in events. Events are collected by means of instrumentation added to the server source code. Instruments time events, which is how the ...
https://dev.mysql.com/doc/refman/8.0/en/replication-rules-examples.html
If you use a combination of database-level and table-level replication filtering options, the replica first accepts or ignores events using the database options, then it evaluates all events permitted by those options according to the table options. It is also important to note that the results vary depending on whether the operation is logged using statement-based or row-based binary logging ...
https://dev.mysql.com/doc/refman/8.0/en/testing-server.html
After the data directory is initialized and you have started the server, perform some simple tests to make sure that it works satisfactorily. This section assumes that your current location is the MySQL installation directory and that it has a bin ...
https://dev.mysql.com/doc/refman/8.0/en/features.html
This section describes some of the important characteristics of the MySQL Database Software. Data Types Many data types: signed/unsigned integers 1, 2, 3, 4, and 8 bytes long, FLOAT, DOUBLE, CHAR, VARCHAR, BINARY, VARBINARY, TEXT, BLOB, DATE, TIME, ...In most respects, the roadmap applies to all versions of ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-auto-increment-handling.html
To make this clear, consider an example that uses this table: CREATE TABLE t1 ( c1 INT(11) NOT NULL AUTO_INCREMENT, c2 VARCHAR(10) DEFAULT NULL, PRIMARY KEY (c1) ) ENGINE=InnoDB; Suppose that there are two transactions running, each inserting rows ... InnoDB provides a configurable locking mechanism that can significantly improve scalability and performance of SQL statements that add rows to tables with AUTO_INCREMENT ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-compression-tuning.html
Whether to adjust the size of the buffer pool based on run-time performance characteristics, such as the amount of time the system spends compressing and uncompressing data. When to Use Compression In general, compression works best on tables that ... Most often, the internal optimizations described in InnoDB Data Storage and Compression ensure that the system runs well with compressed ...
https://dev.mysql.com/doc/refman/8.0/en/charset-compatibility.html
For MaxDB compatibility these two statements are the same: CREATE TABLE t1 (f1 CHAR(N) UNICODE); CREATE TABLE t1 (f1 CHAR(N) CHARACTER SET ucs2); Both the UNICODE attribute and the ucs2 character set are deprecated in MySQL 8.0.28.
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf32.html
The utf32 character set is fixed length (like ucs2 and unlike utf16). utf32 uses 32 bits for every character, unlike ucs2 (which uses 16 bits for every character), and unlike utf16 (which uses 16 bits for some characters and 32 bits for others).
https://dev.mysql.com/doc/refman/8.0/en/charset-unicode-utf8mb3.html
The utf8mb3 character set has these characteristics: Supports BMP characters only (no support for supplementary characters) Requires a maximum of three bytes per multibyte character. Applications that use UTF-8 data but require supplementary ...