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https://dev.mysql.com/doc/refman/8.0/en/information-schema-table-constraints-table.html
CONSTRAINT_SCHEMA The name of the schema (database) to which the constraint belongs. TABLE_SCHEMA The name of the schema (database) to which the table belongs. The TABLE_CONSTRAINTS table has these columns: CONSTRAINT_CATALOG The name of the catalog ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-table.html
TABLE_SCHEMA The name of the schema (database) to which the table belongs. The information_schema_stats_expiry system variable defines the period of time before cached table statistics expire. If there are no cached statistics or statistics have ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-view-routine-usage-table.html
TABLE_SCHEMA The name of the schema (database) to which the view belongs. SPECIFIC_SCHEMA The name of the schema (database) to which the function used in the view definition belongs. The VIEW_ROUTINE_USAGE table (available as of MySQL 8.0.13) ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-view-table-usage-table.html
VIEW_SCHEMA The name of the schema (database) to which the view belongs. TABLE_SCHEMA The name of the schema (database) to which the table or view used in the view definition belongs. The VIEW_TABLE_USAGE table (available as of MySQL 8.0.13) ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-views-table.html
TABLE_SCHEMA The name of the schema (database) to which the view belongs. You must have the SHOW VIEW privilege to access this table. The VIEWS table has these columns: TABLE_CATALOG The name of the catalog to which the view belongs. VIEW_DEFINITION ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema.html
INFORMATION_SCHEMA provides access to database metadata, information about the MySQL server such as the name of a database or table, the data type of a column, or access privileges. Other terms that are sometimes used for this information are data ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-benchmarking.html
If InnoDB is not the default storage engine, you can determine if your database server and applications work correctly with InnoDB by restarting the server with --default-storage-engine=InnoDB defined on the command line or with ...Since changing ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-compression-tuning-monitoring.html
The information in these tables is system-wide: it summarizes the compression statistics across all compressed tables in your database. A large number of compression operations overall (compared to the number of INSERT, UPDATE and DELETE operations ... Overall application performance, CPU and I/O utilization and the size of disk files are good indicators of how effective compression is for your ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-disk-io.html
InnoDB uses asynchronous disk I/O where possible, by creating a number of threads to handle I/O operations, while permitting other database operations to proceed while the I/O is still in progress. There are two read-ahead heuristics in InnoDB: In ...On Linux and Windows platforms, InnoDB uses the available OS and library functions to perform “native” asynchronous ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-doublewrite-buffer.html
With this setting, the doublewrite buffer is fully enabled, with database page content written to the doublewrite buffer where it is accessed during recovery to fix incomplete page writes. Database page content is not written to the doublewrite ...