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https://dev.mysql.com/doc/connectors/en/connector-j-connp-props-x-protocol-and-x-devapi.html
Since Version 8.0.22 xdevapi.connect-timeout X DevAPI-specific timeout, in milliseconds, for socket connect, with "0" being no timeout. If 'xdevapi.connect-timeout' is not set explicitly and 'connectTimeout' is, 'xdevapi.connect-timeout' takes up ...
https://dev.mysql.com/doc/mysql-monitor/8.0/en/mem-query-analyzer-queries.html
Example Statements: (Displayed only if Example Query is enabled) distribution chart of the statement by Execution Time, in milliseconds, and time and date, within the selected time range. Graphs: displays the average execution time, number of ...
https://dev.mysql.com/doc/refman/8.4/en/charset-unicode-conversion.html
For the CHAR, VARCHAR, and TEXT data types, watch for these issues when converting your MySQL tables: Check all definitions of utf8mb3 columns and make sure they do not exceed the maximum length for the storage engine. Check all indexes on utf8mb3 ...In terms of table structure, these are the primary potential incompatibilities: For the variable-length character data types (VARCHAR and the TEXT types), the maximum permitted length in characters is less for utf8mb4 columns than for utf8mb3 ...
https://dev.mysql.com/doc/refman/8.4/en/create-index.html
When the limit is reached, an error similar to the following is reported: ERROR 3905 (HY000): Exceeded max number of values per record for multi-valued index 'idx' by 1 value(s). CREATE INDEX i1 ON t1 (c1) ENGINE_ATTRIBUTE='{"key":"value"}'; ...For ... CREATE [UNIQUE | FULLTEXT | SPATIAL] INDEX index_name [index_type] ON tbl_name (key_part,...) [index_option] [algorithm_option | lock_option] ...
https://dev.mysql.com/doc/refman/8.4/en/performance-schema-events-waits-current-table.html
For discussion of picoseconds as the unit for event times and factors that affect time values, see Section 29.4.1, “Performance Schema Event Timing”. The job of the Performance Schema instrumentation is to provide row count and accumulated ...
https://dev.mysql.com/doc/ndbapi/en/ndb-ndberror.html
This section provides information about the NdbError data structure, which contains status and other information about errors, including error codes, classifications, and messages. NdbError Overview NdbError::Classification NdbError::Status ...
https://dev.mysql.com/doc/x-devapi-userguide/en/using-sql.html
In addition to the simplified X DevAPI syntax of the Session object, the Session object has a sql() function that takes any SQL statement as a string. The following example uses a Session to call an SQL Stored Procedure on the specific node.
https://dev.mysql.com/doc/connectors/en/connector-j-connp-props-connection.html
Since Version 5.1.25 connectionLifecycleInterceptors A comma-delimited list of classes that implement 'com.mysql.cj.jdbc.interceptors.ConnectionLifecycleInterceptor' that should be notified of connection lifecycle events (creation, destruction, ...
https://dev.mysql.com/doc/refman/8.4/en/show-events.html
row *************************** Db: myschema Name: e_daily Definer: jon@ghidora Time zone: SYSTEM Type: RECURRING Execute at: NULL Interval value: 1 Interval field: DAY Starts: 2018-08-08 11:06:34 Ends: NULL Status: ENABLED Originator: 1 ...Type The ... SHOW EVENTS [{FROM | IN} schema_name] [LIKE 'pattern' | WHERE expr] This statement displays information about Event Manager events, which are discussed in Section 27.4, “Using the Event ...
https://dev.mysql.com/doc/workbench/en/wb-develop-sql-editor-results.html
The results area of the screen shows the results from executed statements. Wrap Cell Content: If the contents of a cell exceeds the cell width, then the data will be cut off with an ellipses. If the script contains multiple statements, a result ...