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https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-documents-in-tables.html
In MySQL, a table may contain traditional relational data, JSON values, or both. mysql-js> db.city.insert().values( None, "San Francisco", "USA", "California", '{"Population":830000}') Select a Record You can issue a query with a search condition ...You can combine traditional data with JSON documents by storing the documents in columns having a native JSON data ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-javascript-documents-remove.html
mysql-js> db.countryinfo.remove("Code = 'SEA'") Remove the First Document To remove the first document in the countryinfo collection, use the limit() method with a value of 1. mysql-js> db.countryinfo.remove("true").limit(1) Remove the Last Document ... You can use the remove() method to delete some or all documents from a collection in a ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-documents-collections.html
When you are using MySQL as a Document Store, collections are containers within a schema that you can create, list, and drop. Collections contain JSON documents that you can add, find, update, and remove. The examples in this section use the ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-documents-in-tables.html
In MySQL, a table may contain traditional relational data, JSON values, or both. mysql-py> db.city.insert().values( None, "San Francisco", "USA", "California", '{"Population":830000}') Select a Record You can issue a query with a search condition ...You can combine traditional data with JSON documents by storing the documents in columns having a native JSON data ...
https://dev.mysql.com/doc/refman/8.0/en/mysql-shell-tutorial-python-documents-remove.html
mysql-py> db.countryinfo.remove("Code = 'SEA'") Remove the First Document To remove the first document in the countryinfo collection, use the limit() method with a value of 1. mysql-py> db.countryinfo.remove("true").limit(1) Remove the Last Document ... You can use the remove() method to delete some or all documents from a collection in a ...
https://dev.mysql.com/doc/refman/8.0/en/replication-multi-source.html
MySQL multi-source replication enables a replica to receive transactions from multiple immediate sources in parallel. A multi-source replica can also be set up as a multi-threaded replica, by setting the system variable replica_parallel_workers ...
https://dev.mysql.com/doc/refman/8.0/en/keyring-hashicorp-plugin.html
Note The keyring_hashicorp plugin is an extension included in MySQL Enterprise Edition, a commercial product. No key information is permanently stored in MySQL server local storage. (An optional in-memory key cache may be used as intermediate ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema-metrics-table.html
SET GLOBAL innodb_monitor_reset_all = [counter-name|module_name|pattern|all]; Counters and counter modules can also be enabled at startup using the MySQL server configuration file. For example, to enable the log module, metadata_table_handles_opened ... The INNODB_METRICS table provides information about InnoDB performance and resource-related ...
https://dev.mysql.com/doc/refman/8.0/en/version-tokens-usage.html
The next time the client sends a statement to server 2, its own token list no longer matches the server token list and an error occurs: mysql> UPDATE emp.employee SET salary = salary * 1.1 WHERE id = 4982; ERROR 3136 (42000): Version token mismatch ...A scenario in which Version Tokens can be useful is a system that accesses a collection of MySQL servers but needs to manage them for load balancing purposes by monitoring them and adjusting server assignments according to load ...
https://dev.mysql.com/doc/refman/8.0/en/windows-create-option-file.html
For options that are used every time the server starts, you may find it most convenient to use an option file to specify your MySQL configuration. This is particularly true under the following circumstances: The installation or data directory ... If ...