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https://dev.mysql.com/doc/connector-j/en/connector-j-WebAuthn-authentication.html
Web Authentication (WebAuthn) enables user authentication for MySQL Server using devices such as smart cards, security keys, and biometric readers. WebAuthn enables passwordless authentication, and can be used for MySQL accounts that use ...
https://dev.mysql.com/doc/internals/en/optimizer-eliminating-dead-code.html
If a column cannot be NULL, the optimizer removes any non-relevant IS NULL conditions. Thus, WHERE not_null_column IS NULL is an always-false situation, and WHERE not_null_column IS NOT NULL is an always-true situation — so such columns are also ... A transformation takes place for conditions that are always true, for example: WHERE 0=0 AND column1='y' In this case, the first condition is removed, leaving WHERE column1='y' See: /sql/sql_select.cc, ...
https://dev.mysql.com/doc/ndbapi/en/mccj-using-clusterj-tables.html
ClusterJ's main purpose is to read, write, and update row data in an existing database, rather than to perform DDL. You can create the employee table that matches this interface, using the following CREATE TABLE statement, in a MySQL client ...
https://dev.mysql.com/doc/ndbapi/en/ndb-ndbrecattr.html
NdbRecAttr Class Overview ~NdbRecAttr() NdbRecAttr::aRef() NdbRecAttr::char_value() NdbRecAttr::clone() NdbRecAttr::double_value() NdbRecAttr::float_value() NdbRecAttr::get_size_in_bytes() NdbRecAttr::getColumn() NdbRecAttr::getType() ...An ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-model-sharing.html
For example: mysql> CALL sys.ML_MODEL_IMPORT(NULL, JSON_OBJECT('schema', 'ML_SCHEMA_admin', 'table', 'model_export'), @bank_export); NULL means that a model from a table is imported, and not a model object. mysql> CALL ... This topic describes how ...
https://dev.mysql.com/doc/heatwave/en/mys-hwaml-using-a-recommendation-model-ratings-rankings.html
For the option to set the user name, you can set it to NULL. mysql> CALL sys.ML_MODEL_LOAD(@model, NULL); The following example uses the model handle. mysql> CALL sys.ML_MODEL_LOAD('recommendation_use_case', NULL); Make predictions for the test ...
https://dev.mysql.com/doc/refman/8.4/en/create-table-secondary-indexes.html
row *************************** id: 1 select_type: SIMPLE table: jemp partitions: NULL type: range possible_keys: i key: i key_len: 5 ref: NULL rows: 2 filtered: 100.00 Extra: Using where 1 row in set, 1 warning (0.00 sec) mysql> SHOW WARNINGS\G ...
https://dev.mysql.com/doc/refman/8.4/en/numeric-type-attributes.html
When you insert a value of NULL into an indexed AUTO_INCREMENT column, the column is set to the next sequence value. (AUTO_INCREMENT sequences begin with 1.) Storing 0 into an AUTO_INCREMENT column has the same effect as storing NULL, unless the ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-error-summary-tables.html
A NULL row in each error summary table is used to aggregate statistics for all errors that lie out of range of the instrumented errors. For example, if MySQL Server errors lie in the range from M to N and an error is raised with number Q not in that ... The Performance Schema maintains summary tables for aggregating statistical information about server errors (and ...
https://dev.mysql.com/doc/mysql-enterprise-backup/8.4/en/meb-backup-osb.html
Tape drives are affordable, high-capacity storage devices for backup data. MySQL Enterprise Backup can interface with media management software (MMS) such as Oracle Secure Backup (OSB) to drive MySQL backup and restore jobs. The media management ...