Apache Kudu 是一个高性能的分布式列式存储系统,支持 SQL 和 NoSQL 数据模型
SELECT column1, column2 FROM table_name WHERE condition;
INSERT INTO table_name (column1, column2) VALUES (value1, value2);
UPDATE table_name SET column1 = value1, column2 = value2 WHERE condition;
DELETE FROM table_name WHERE condition;
CREATE TABLE table_name (
column1 data_type PRIMARY KEY,
column2 data_type,
...
);
ALTER TABLE table_name ADD COLUMN column_name data_type;
ALTER TABLE table_name DROP COLUMN column_name;
DROP TABLE table_name;
SELECT column1, column2, ...
FROM table1
JOIN table2 ON table1.columnX = table2.columnY;
SELECT column1, COUNT(*)
FROM table_name
GROUP BY column1;
SELECT column1, column2
FROM table_name
ORDER BY column1 ASC, column2 DESC;
请注意,Kudu 不支持所有 SQL 标准中的语法和功能。在使用 Kudu 时,请参考官方文档以了解更多关于 Kudu SQL 支持的信息。