MySQL和SQL Server是兩種流行的關系型數據庫管理系統，它們都使用SQL語句來查詢和操作數據。下面是一些常用的MySQL和SQL Server語句：

MySQL語句：創建數據庫：CREATE DATABASE database_name;選擇數據庫：USE database_name;創建表：CREATE TABLE table_name(
column1 datatype,
column2 datatype,
column3 datatype,
.....
);插入數據：INSERT INTO table_name (column1, column2, column3,...)
VALUES (value1, value2, value3,...);更新數據：UPDATE table_name
SET column1 = value1, column2 = value2, .....
WHERE condition;選擇數據：SELECT column1, column2, .....
FROM table_name
WHERE condition
ORDER BY column_name ASC|DESC;刪除數據：DELETE FROM table_name
WHERE condition;刪除表：DROP TABLE table_name;SQL Server語句：創建數據庫：CREATE DATABASE database_name;選擇數據庫：USE database_name;創建表：CREATE TABLE table_name(
column1 datatype,
column2 datatype,
column3 datatype,
.....
);插入數據：INSERT INTO table_name (column1, column2, column3,...)
VALUES (value1, value2, value3,...);更新數據：UPDATE table_name
SET column1 = value1, column2 = value2, .....
WHERE condition;選擇數據：SELECT column1, column2, .....
FROM table_name
WHERE condition
ORDER BY column_name ASC|DESC;刪除數據：DELETE FROM table_name
WHERE condition;刪除表：DROP TABLE table_name;