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https://dev.mysql.com/doc/refman/8.0/en/handler-scope.html
A stored program may include handlers to be invoked when certain conditions occur within the program. The applicability of each handler depends on its location within the program definition and on the condition or conditions that it handles: A ...
https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
The identifier quote character is the backtick (`): mysql> SELECT * FROM `select` WHERE `select`.id > 100; If the ANSI_QUOTES SQL mode is enabled, it is also permissible to quote identifiers within double quotation marks: mysql> CREATE TABLE "test" ... Certain objects within MySQL, including database, table, index, column, alias, view, stored procedure, partition, tablespace, resource group and other object names are known as ...
https://dev.mysql.com/doc/refman/8.0/en/information-schema-innodb-temp-table-info-table.html
The INNODB_TEMP_TABLE_INFO table provides information about user-created InnoDB temporary tables that are active in an InnoDB instance. The INNODB_TEMP_TABLE_INFO table is created when first queried, exists only in memory, and is not persisted to ...It does not provide information about internal InnoDB temporary tables used by the ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-benchmarking.html
Since changing the default storage engine only affects newly created tables, run your application installation and setup steps to confirm that everything installs properly, then exercise the application features to make sure the data loading, ... If ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-compression-background.html
An InnoDB table created with ROW_FORMAT=COMPRESSED can use a smaller page size on disk than the configured innodb_page_size value. The compressed page size is specified through the CREATE TABLE or ALTER TABLE KEY_BLOCK_SIZE parameter. Specify a ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-compression-tuning.html
For example: USE test; SET GLOBAL innodb_file_per_table=1; SET GLOBAL autocommit=0; -- Create an uncompressed table with a million or two rows. \! ls -l data/test/big_table.ibd CREATE TABLE key_block_size_4 LIKE big_table; ALTER TABLE ... Most ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-doublewrite-buffer.html
innodb_doublewrite_dir The innodb_doublewrite_dir variable (introduced in MySQL 8.0.20) defines the directory where InnoDB creates doublewrite files. If no directory is specified, doublewrite files are created in the innodb_data_home_dir directory, ... The doublewrite buffer is a storage area where InnoDB writes pages flushed from the buffer pool before writing the pages to their proper positions in the InnoDB data ...
https://dev.mysql.com/doc/refman/8.0/en/innodb-information-schema-fulltext_index-tables.html
INNODB_FT_DEFAULT_STOPWORD: Holds a list of stopwords that are used by default when creating a FULLTEXT index on InnoDB tables. use_stopword: Indicates whether a stopword table is used, which is defined when the FULLTEXT index is created.
https://dev.mysql.com/doc/refman/8.0/en/innodb-truncate-table-reclaim-space.html
For a table to be stored in its own .ibd file, innodb_file_per_table must enabled when the table is created. When a table is truncated, it is dropped and re-created in a new .ibd file, and the freed space is returned to the operating system. This is ... To reclaim operating system disk space when truncating an InnoDB table, the table must be stored in its own .ibd ...
https://dev.mysql.com/doc/refman/8.0/en/ipv6-brokers.html
If so, any accounts you create that name the original address become invalid. Create an account at Freenet6 by visiting this URL and signing up: http://gogonet.gogo6.com After creating the account, go to this URL, sign in, and create a user ID and ... If you do not have a public IPv6 address that enables your system to communicate over IPv6 outside your local network, you can obtain one from an IPv6 ...