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https://dev.mysql.com/doc/workbench/en/wb-generating-php.html
SQL @variables generate PHP variables in the code that then bind to the statement before execution. MySQL Workbench can be used to generate PHP code with the bundled PHP plugin, by using the Tools, Utilities, Copy as PHP Code menu option. The ...
https://dev.mysql.com/doc/ndbapi/en/mccj-using-clusterj.html
This section provides basic information for writing, compiling, and executing applications that use ClusterJ. To run applications that use ClusterJ, you need the clusterj runtime jar file; in addition, libndbclient must be in the directory ...For ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-summary-tables.html
Summary tables provide aggregated information for terminated events over time. That might be useful, for example, after you have made a runtime configuration change. The tables in this group summarize event data in different ways. Each summary ...
https://dev.mysql.com/doc/mysql-cluster-manager/8.4/en/mcm-using-import-cluster-test-and-migrate.html
Process version mismatches can also produce seemingly random errors whose cause can sometime prove difficult to track down. When import cluster --dryrun no longer warns of any errors, you can perform the import with the import cluster command, this ...The following list contains some common errors you may encounter, and their likely causes: MySQL Cluster Manager requires a specific MySQL user and privileges to manage SQL ... Testing and performing the migration of ...
https://dev.mysql.com/doc/refman/8.4/en/replication-features-transaction-inconsistencies.html
When using a multithreaded replica, workers which have not received an error complete their queues, so it may take time to stop all threads. Inconsistencies in the sequence of transactions that have been executed from the relay log can occur ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-8-0-26.html
The MySQL HeatWave Advisor also provides a Query Insights feature, which provides runtimes for successfully executed queries, and runtime estimates for EXPLAIN queries, queries canceled using Ctrl+C, and queries that fail due to out of memory errors. This enhancement reduces memory allocation and deallocation operations, memory usage, and execution time for affected ...Runtime ... Advisor Auto Parallel Load Auto Scheduling Functionality Added or Changed Advisor The new MySQL HeatWave Advisor provides string ...
https://dev.mysql.com/doc/workbench/en/wb-printing-options.html
The printing menu items are not enabled unless an EER diagram is active. These items are available: Page Setup Enables you to choose the paper size, orientation, and margins. From the preview you can adjust the scale of the view and also choose a ...
https://dev.mysql.com/doc/internals/en/index-file-usage.html
While the header of the compressed data file contains a lot of information, there are still some things which need to be taken from the index file. These are the number of columns of the table and the length of each column. The latter is required ...
https://dev.mysql.com/doc/internals/en/tests-with-several-variants.html
Please think twice before you create engine-specific variants of a test or let runs with ps-protocol/sp-protocol/cursor-protocol/view-protocol happen. They might be of low value and a permanent wasting of resources and/or fail (protocol variants ...
https://dev.mysql.com/doc/internals/en/user-var-event.html
Binlog::USER_VAR_EVENT: Payload 4 name_length string[$len] name 1 is_null if not is_null { 1 type 4 charset 4 value_length string[$len] value if more data { 1 flags } } Fields name_length (4) -- length of name name (string.var_len) -- ...