OceanBase 在 V4.3.0 版本实现了新向量化引擎,更改为 Column 数据格式描述,同时也对一批常用算子和表达式进行了重新实现,如 HashJoin、AGGR、HashGroupBy、Exchange(DTL Shuffle) 等 10 余项算子,关系运算、逻辑运算、算数运算等 20 余项 MySQL 表达式。
$> ndb_mgm -V MySQL distrib mysql-8.0.42 ndb-8.0.42, for Linux (x86_64) In MySQL Cluster NDB 8.0, these two version numbers are always the same. To build the MySQL source with NDB Cluster support, use the CMake option -DWITH_NDB (NDB 8.0.31 and later; for earlier releases, ...
So if you name your plugin service functions after single common words, e.g.getorputetc you will strongly pollute the namespace that the plugin authors will use. They will either have to refrain from using such methods or go to the extra trouble of using either preprocessor or C++ namespac...
MySQL is the world’s most popular open source database management system.Databasesare the essential data repositories for all software applications. For example, whenever someone conducts a web search, logs into an account, or completes a transaction, a database stores the information so it can ...
Structured Query Language (SQL) is the unifying thread in the complex tapestry of database management. It is the common language spoken by various database systems, including SQL Server, MySQL, Oracle, and MS SQL Server. SQL is the bridge between data and the people who need it. ...
Strong security: PHP and MySQL have built-in security features that help protect against common web vulnerabilities such as SQL injection attacks. Scalability: Both PHP and MySQL are designed to scale well, making them suitable for use in applications that receive a large amount of traffic. Compat...
While most on-premises SQL databases can only support relational databases like MySQL and PostgreSQL, cloud databases can support SQL databases and NoSQL databases, including MongoDB and Apache CouchDB. Easier access. SQL databases are generally easy to access, but users now have the ability to ...
MySQL Vs MariaDB: Key Differences We will now discuss some features of both systems. Though there might be a large set of features that shall be common across both of these databases, therefore the final decision to narrow down on any one of these depends on the specific requirements. ...
In 2018, MySQL introduced a new feature: window functions. Window functions are a powerful SQL feature that perform a specific calculation (e.g. sum, count, average, etc.) on a set of rows; this set of rows is called a “window” and is defined with theOVERclause. ...
What are SQL dashboards? An SQL dashboard is a dynamic tool that integrates SQL with data visualization techniques. SQL is a language designed to manage and manipulate relational databases. When used in dashboards, these can query specific data sets, process them, and display the results visua...