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https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-utf8mb3.html
The utf8mb3 character set has these characteristics: Supports BMP characters only (no support for supplementary characters) Requires a maximum of three bytes per multibyte character. Applications that use UTF-8 data but require supplementary ...
https://dev.mysql.com/doc/refman/5.7/en/charset-unicode-utf8mb4.html
The utf8mb4 character set has these characteristics: Supports BMP and supplementary characters. utf8mb4 contrasts with the utf8mb3 character set, which supports only BMP characters and uses a maximum of three bytes per character: For a BMP ...
https://dev.mysql.com/doc/refman/5.7/en/charset.html
MySQL includes character set support that enables you to store data using a variety of character sets and perform comparisons according to a variety of collations. The default MySQL server character set and collation are latin1 and ...
https://dev.mysql.com/doc/refman/5.7/en/create-logfile-group.html
CREATE LOGFILE GROUP logfile_group ADD UNDOFILE 'undo_file' [INITIAL_SIZE [=] initial_size] [UNDO_BUFFER_SIZE [=] undo_buffer_size] [REDO_BUFFER_SIZE [=] redo_buffer_size] [NODEGROUP [=] nodegroup_id] [WAIT] [COMMENT [=] 'string'] ENGINE [=] ...
https://dev.mysql.com/doc/refman/5.7/en/data-masking.html
Note MySQL Enterprise Data Masking and De-Identification is an extension included in MySQL Enterprise Edition, a commercial product. As of MySQL 5.7.24, MySQL Enterprise Edition provides data masking and de-identification capabilities: ...
https://dev.mysql.com/doc/refman/5.7/en/dba-dtrace-server.html
Support for DTrace is deprecated in MySQL 5.7 and is removed in MySQL 8.0. The DTrace probes in the MySQL server are designed to provide information about the execution of queries within MySQL and the different areas of the system being utilized ...
https://dev.mysql.com/doc/refman/5.7/en/declare-condition.html
DECLARE condition_name CONDITION FOR condition_value condition_value: { mysql_error_code | SQLSTATE [VALUE] sqlstate_value } The DECLARE ... CONDITION statement declares a named error condition, associating a name with a condition that needs ...
https://dev.mysql.com/doc/refman/5.7/en/enterprise-encryption-function-reference.html
Table 6.36 MySQL Enterprise Encryption Functions Name Description asymmetric_decrypt() Decrypt ciphertext using private or public key asymmetric_derive() Derive symmetric key from asymmetric keys asymmetric_encrypt() Encrypt cleartext using private ...
https://dev.mysql.com/doc/refman/5.7/en/extended-show.html
Some extensions to SHOW statements accompany the implementation of INFORMATION_SCHEMA: SHOW can be used to get information about the structure of INFORMATION_SCHEMA itself. Several SHOW statements accept a WHERE clause that provides more ...
https://dev.mysql.com/doc/refman/5.7/en/faqs-general.html
Does MySQL 5.7 have a Query Cache? Does it work on Server, Instance or Database? A.1.5. Does MySQL have a NOW() function with fractions of seconds? A.1.7. Which version of MySQL is production-ready (GA)? MySQL 9.5, 8.4, and 8.0 are actively ...