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https://dev.mysql.com/doc/refman/8.0/en/mathematical-functions.html
ABS(X) Returns the absolute value of X, or NULL if X is NULL. An implication of this is that ABS(-9223372036854775808) produces an error because the result cannot be stored in a signed BIGINT value. mysql> SELECT ABS(2); -> 2 mysql> SELECT ABS(-32); ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-install-linux-binary.html
This section covers the steps necessary to install the correct executables for each type of Cluster node from precompiled binaries supplied by Oracle. For setting up a cluster using precompiled binaries, the first step in the installation process ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-cluster-ndbinfo-config-params.html
The config_params table is a static table which provides the names and internal ID numbers of and other information about NDB Cluster configuration parameters. This table can also be used in conjunction with the config_values table for obtaining ...
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/data-masking-plugin-functions.html
margin1: A nonnegative integer that specifies the number of characters on the left end of the string to remain unmasked. If the value is 0, no left end characters remain unmasked. margin2: A nonnegative integer that specifies the number of ...Prior ...
https://dev.mysql.com/doc/refman/8.0/en/charset-binary-collations.html
Binary strings (as stored using the BINARY, VARBINARY, and BLOB data types) have a character set and collation named binary. Nonbinary strings (as stored using the CHAR, VARCHAR, and TEXT data types) have a character set and collation other than ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-online-ddl-operations.html
When you add a primary key using the ALGORITHM=COPY clause, MySQL converts NULL values in the associated columns to default values: 0 for numbers, an empty string for character-based columns and BLOBs, and 0000-00-00 00:00:00 for DATETIME. For ...