Search Results
https://dev.mysql.com/doc/internals/en/preventing-use-of-optimizer-trace.html
If for some reason, as DBA of a MySQL Server, you wish to prevent all users from seeing traces of their queries, start the server with these options: --maximum-optimizer-trace-max-mem-size=0 --optimizer-trace-max-mem-size=0 This sets the maximum ...
https://dev.mysql.com/doc/refman/8.4/en/data-directory-initialization.html
To arrange for MySQL to start without manual intervention at system boot time, see Section 2.9.5, “Starting and Stopping MySQL Automatically”. Data directory initialization creates time zone tables in the mysql schema but does not populate them.
https://dev.mysql.com/doc/internals/en/include-directory.html
Header (*.h) files for most libraries; includes all header files distributed with the MySQL binary distribution. Note that each individual directory will also have its own *.h files, for including in its own *.c programs. The *.h files in the ...
https://dev.mysql.com/doc/internals/en/index-last.html
Synopsis virtual int index_last ( buf); byte * buf ; Description This is the index_last method. Parameters buf - byte array to be populated with matching row. Usage Advance to last row in index and return row in buffer.
https://dev.mysql.com/doc/internals/en/packed-record-layout.html
pack bits (!= NULL bits!): One bit per packable column: FIELD_BLOB: Set if blob is empty. => The "pack bits" are rounded up to the next byte boundary. Each field is copied verbatim unless packed according to the "pack bits" paragraph.
https://dev.mysql.com/doc/ndbapi/en/mccj-using-clusterj-tables.html
ClusterJ's main purpose is to read, write, and update row data in an existing database, rather than to perform DDL. You can create the employee table that matches this interface, using the following CREATE TABLE statement, in a MySQL client ...
https://dev.mysql.com/doc/x-devapi-userguide/en/setting-the-current-schema.html
A default schema for a session can be specified using the schema attribute in the URI-like connection string or key-value pairs when opening a connection session. The Session class getDefaultSchema() method returns the default schema for the ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-js/en/method-chaining.html
// New method chaining used for executing an SQL SELECT statement // Recommended way for executing queries var employees = db.getTable('employee'); var res = employees.select(['name', 'age']). bind('param', 'm%').execute(); // Traditional SQL ... X ...
https://dev.mysql.com/doc/x-devapi-userguide-shell-python/en/method-chaining.html
X DevAPI supports a number of modern practices to make working with CRUD operations easier and to fit naturally into modern development environments. This section explains how to use method chaining instead of working with SQL strings of JSON ...
https://dev.mysql.com/doc/ndbapi/en/ndb-ndbindexscanoperation.html
The number of fragments to scan in parallel; use 0 to specify the maximum automatically. Note This parameter was ignored prior to MySQL 5.1.12, and the maximum was used.(Bug #20252) Return value An integer: 0 indicates success; -1 indicates failure.