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https://dev.mysql.com/doc/refman/8.0/en/data-dictionary-object-cache.html
The dictionary object cache is a shared global cache that stores previously accessed data dictionary objects in memory to enable object reuse and minimize disk I/O. Similar to other cache mechanisms used by MySQL, the dictionary object cache uses ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking-component-functions.html
mask_canada_sin(str [, mask_char]) Masks a Canada Social Insurance Number (SIN) and returns the number with all meaningful digits replaced by 'X' characters. Nine digits grouped in pattern: xxx-xxx-xxx ('-' is any separator character). Return value: ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking-component-usage.html
Before using MySQL Enterprise Data Masking and De-Identification, install it according to the instructions provided at Section 8.5.2.1, “MySQL Enterprise Data Masking and De-Identification Component Installation”. To use MySQL Enterprise Data ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking-components-vs-plugin.html
Prior to 8.0.33, MySQL enabled masking and de-identification capabilities using a server-side plugin, but transitioned to use the component infrastructure in MySQL 8.0.33. The following table briefly compares MySQL Enterprise Data Masking and ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking-plugin-functions.html
Prior to MySQL 8.0.19, the functions treat string arguments as binary strings (which means they do not distinguish lettercase), and string return values are binary strings. If a MySQL Enterprise Data Masking and De-Identification function is invoked ...
https://dev.mysql.com/doc/refman/8.0/en/data-masking.html
Note MySQL Enterprise Data Masking and De-Identification is an extension included in MySQL Enterprise Edition, a commercial product. MySQL Enterprise Edition provides data masking and de-identification capabilities: Transformation of existing data ...
https://dev.mysql.com/doc/refman/8.0/en/data-type-defaults.html
Data type specifications can have explicit or implicit default values. A DEFAULT value clause in a data type specification explicitly indicates a default value for a column. Examples: CREATE TABLE t1 ( i INT DEFAULT -1, c VARCHAR(10) DEFAULT '', ...
https://dev.mysql.com/doc/refman/8.0/en/database-use.html
Once you know how to enter SQL statements, you are ready to access a database. Suppose that you have several pets in your home (your menagerie) and you would like to keep track of various types of information about them. You can do so by creating ...
https://dev.mysql.com/doc/refman/8.0/en/date-calculations.html
MySQL provides several functions that you can use to perform calculations on dates, for example, to calculate ages or extract parts of dates. To determine how many years old each of your pets is, use the TIMESTAMPDIFF() function. Its arguments are ...
https://dev.mysql.com/doc/refman/8.0/en/descending-indexes.html
MySQL supports descending indexes: DESC in an index definition is no longer ignored but causes storage of key values in descending order. Previously, indexes could be scanned in reverse order but at a performance penalty. A descending index can be ...