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https://dev.mysql.com/doc/refman/5.7/en/concurrent-inserts.html
If there are multiple INSERT statements, they are queued and performed in sequence, concurrently with the SELECT statements. The results of a concurrent INSERT may not be visible immediately. The concurrent_insert system variable can be set to ...
https://dev.mysql.com/doc/refman/5.7/en/creating-database.html
If the administrator creates your database for you when setting up your permissions, you can begin using it. Otherwise, you need to create it yourself: mysql> CREATE DATABASE menagerie; Under Unix, database names are case-sensitive (unlike SQL ...
https://dev.mysql.com/doc/refman/5.7/en/csv-storage-engine.html
The CSV storage engine stores data in text files using comma-separated values format. The CSV storage engine is always compiled into the MySQL server. To examine the source for the CSV engine, look in the storage/csv directory of a MySQL source ...
https://dev.mysql.com/doc/refman/5.7/en/custom-benchmarks.html
Benchmark your application and database to find out where the bottlenecks are. After fixing one bottleneck (or by replacing it with a “dummy” module), you can proceed to identify the next bottleneck. Even if the overall performance for your ...
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/deallocate-prepare.html
{DEALLOCATE | DROP} PREPARE stmt_name To deallocate a prepared statement produced with PREPARE, use a DEALLOCATE PREPARE statement that refers to the prepared statement name. Attempting to execute a prepared statement after deallocating it results ...
https://dev.mysql.com/doc/refman/5.7/en/declare-handler.html
statement handler_action: { CONTINUE | EXIT | UNDO } condition_value: { mysql_error_code | SQLSTATE [VALUE] sqlstate_value | condition_name | SQLWARNING | NOT FOUND | SQLEXCEPTION } The DECLARE ... HANDLER statement specifies a handler that deals ...
https://dev.mysql.com/doc/refman/5.7/en/error-interfaces.html
$> ndb_perror 323 NDB error code 323: Invalid nodegroup id, nodegroup already existing: Permanent error: Application error . Error messages can originate on the server side or the client side, and each error message includes an error code, SQLSTATE ...
https://dev.mysql.com/doc/refman/5.7/en/error-log-windows.html
On Windows, mysqld uses the --log-error, --pid-file, and --console options to determine whether mysqld writes the error log to the console or a file, and, if to a file, the file name: If --console is given, mysqld writes the error log to the ...