mysql语法，hive语法，presto语法

MySQL语法：

1. 创建数据库：CREATE DATABASE database_name;

2. 创建表：CREATE TABLE table_name (column1 datatype, column2 datatype);

3. 插入数据：INSERT INTO table_name (column1, column2) VALUES (value1, value2);

4. 查询数据：SELECT column1, column2 FROM table_name WHERE condition;

5. 更新数据：UPDATE table_name SET column1 = value1 WHERE condition;

6. 删除数据：DELETE FROM table_name WHERE condition;

HiveSQL语法：

1. 创建数据库：CREATE DATABASE database_name;

2. 创建表：CREATE TABLE table_name (column1 datatype, column2 datatype) STORED AS file_format;

3. 插入数据：INSERT INTO table_name (column1, column2) VALUES (value1, value2);

4. 查询数据：SELECT column1, column2 FROM table_name WHERE condition;

5. 更新数据：UPDATE table_name SET column1 = value1 WHERE condition;

6. 删除数据：DELETE FROM table_name WHERE condition;

PrestoSQL语法：

1. 创建表：CREATE TABLE table_name (column1 datatype, column2 datatype);

2. 插入数据：INSERT INTO table_name (column1, column2) VALUES (value1, value2);

3. 查询数据：SELECT column1, column2 FROM table_name WHERE condition;

4. 更新数据：UPDATE table_name SET column1 = value1 WHERE condition;

5. 删除数据：DELETE FROM table_name WHERE condition;

6. 其他操作：JOIN、GROUP BY、ORDER BY等。