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https://dev.mysql.com/doc/refman/8.0/en/selecting-columns.html
If you do not want to see entire rows from your table, just name the columns in which you are interested, separated by commas.
https://dev.mysql.com/doc/refman/8.0/en/server-logs.html
You can tell the server to write general query and slow query entries to log tables, log files, or both. MySQL Server has several logs that can help you find out what activity is taking place. (The DDL log is always created when required, and has ...
https://dev.mysql.com/doc/refman/8.0/en/server-plugins.html
The plugins supported by this interface include, but are not limited to, storage engines, INFORMATION_SCHEMA tables, full-text parser plugins, and server extensions. MySQL supports an plugin API that enables creation of server plugins. Plugins can ...
https://dev.mysql.com/doc/refman/8.0/en/set-resource-group.html
Thread IDs can be determined from the Performance Schema threads table. An alternative to SET RESOURCE GROUP is the RESOURCE_GROUP optimizer hint, which assigns individual statements to a resource group. SET RESOURCE GROUP group_name [FOR thread_id ...
https://dev.mysql.com/doc/refman/8.0/en/show-character-set.html
Character set information is also available from the INFORMATION_SCHEMA CHARACTER_SETS table. SHOW {CHARACTER SET | CHARSET} [LIKE 'pattern' | WHERE expr] The SHOW CHARACTER SET statement shows all available character sets. The LIKE clause, if ...
https://dev.mysql.com/doc/refman/8.0/en/show-create-database.html
row *************************** Database: test Create Database: CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci */ /*!80014 DEFAULT ENCRYPTION='N' */ SHOW CREATE DATABASE quotes table and column names ...
https://dev.mysql.com/doc/refman/8.0/en/show-create-user.html
For the current user, the SELECT privilege for the mysql.user system table is required for display of the password hash in the IDENTIFIED AS clause; otherwise, the hash displays as <secret>. Password hash values displayed in the IDENTIFIED WITH ...
https://dev.mysql.com/doc/refman/8.0/en/source-installation-layout.html
See Table 2.3, “MySQL Installation Layout for Generic Unix/Linux Binary Package”, and Section 2.3.1, “MySQL Installation Layout on Microsoft Windows”. By default, when you install MySQL after compiling it from source, the installation step ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-aggregate-functions.html
MySQL supports aggregate functions that perform a calculation on a set of values. For general information about these functions, see Section 14.19.1, “Aggregate Function Descriptions”. ST_Collect() can be used as a window function, as signified ...
https://dev.mysql.com/doc/refman/8.0/en/spatial-index-optimization.html
MySQL still maintains such indexes, as follows: They are updated for table modifications (INSERT, UPDATE, DELETE, and so forth). MySQL permits creation of SPATIAL indexes on NOT NULL geometry-valued columns (see Section 13.4.10, “Creating Spatial ...