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https://dev.mysql.com/doc/refman/5.7/en/myisam-storage-engine.html
MyISAM is based on the older (and no longer available) ISAM storage engine but has many useful extensions. Table 15.2 MyISAM Storage Engine Features Feature Support B-tree indexes Yes Backup/point-in-time recovery (Implemented in the server, rather ...
https://dev.mysql.com/doc/refman/5.7/en/myisampack.html
empty-fill The number of integer columns that do not occupy the full byte range of their type. When the table is used later, the server reads into memory the information needed to decompress columns. This results in much better performance when ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-ndbinfo-operations-per-fragment.html
The syntax just shown for fully qualified object names is an internal interface which is subject to change in future releases. Note When using tot_key_writes, you should keep in mind that a write operation in this context updates the row if the key ... The operations_per_fragment table provides information about the operations performed on individual fragments and fragment replicas, as well as about some of the results from these ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-what-is-new-7-6.html
This information can be displayed in text format, as an ASCII graph, or both. This can vary between a full checkpoint and a checkpoint that changes nothing at all. User-defined shared memory (SHM) connections between a data node and an API node on ... New features and other important changes in NDB Cluster 7.6 which are likely to be of interest are shown in the following list: New Disk Data table file ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-installer-catalog-dashboard.html
Figure 2.12 Filter Available Products Reset one or more of the following fields to modify the list of available products: Text: Filter by text. Maturity: Current Bundle (appears initially with the full package only), Pre-Release, Current GA, or ...
https://dev.mysql.com/doc/refman/5.7/en/point-in-time-recovery-binlog.html
The source of information for point-in-time recovery is the set of binary log files generated subsequent to the full backup operation. To view events from the log, send mysqlbinlog output into a paging program: $> mysqlbinlog binlog_files | more ...
https://dev.mysql.com/doc/refman/5.7/en/storage-engines.html
Support for FULLTEXT indexes is available in MySQL 5.6 and later.7. Storage engines are MySQL components that handle the SQL operations for different table types. InnoDB is the default and most general-purpose storage engine, and Oracle recommends ...
https://dev.mysql.com/doc/refman/5.7/en/audit-log-file-formats.html
<AUDIT_RECORD> <TIMESTAMP>2019-10-03T14:09:38 UTC</TIMESTAMP> <RECORD_ID>6_2019-10-03T14:06:33</RECORD_ID> <NAME>Query</NAME> <CONNECTION_ID>5</CONNECTION_ID> <STATUS>0</STATUS> <STATUS_CODE>0</STATUS_CODE> <USER>root[root] @ localhost ... The MySQL ...
https://dev.mysql.com/doc/refman/5.7/en/cast-functions.html
For example, the following pairs of definitions are equivalent: CHAR(10) CHARACTER SET binary BINARY(10) VARCHAR(10) CHARACTER SET binary VARBINARY(10) TEXT CHARACTER SET binary BLOB If BINARY is invoked from within the mysql client, binary strings ... Table 12.15 Cast Functions and Operators Name Description BINARY Cast a string to a binary string CAST() Cast a value as a certain type CONVERT() Cast a value as a certain type Cast functions and operators enable conversion of values from one data type to ...
https://dev.mysql.com/doc/refman/5.7/en/charset-national.html
These statements are equivalent: SELECT N'some text'; SELECT n'some text'; SELECT _utf8'some text'; . Standard SQL defines NCHAR or NATIONAL CHAR as a way to indicate that a CHAR column should use some predefined character set. For example, these ...