-------------------MongoDB对应SQL语句------------------- 1.Create and Alter 1. sql: create table users( id mediuminty not null auto_increment, user_id varchar(30), age Number, status char(1)
左边是mongodb查询语句,右边是sql语句.对照着用,挺方便. db.users.find() select * from users db.users.find({"age" : 27}) select * from users where age = 27 db.users.find({"username" : "joe", "age" : 27}) select * from users where "us
此处用mysql中的sql语句做例子,C# 驱动用的是samus,也就是上文中介绍的第一种. 引入项目MongoDB.dll //创建Mongo连接 var mongo = new Mongo("mongodb://localhost"); mongo.Connect(); //获取一个数据库,如果没有会自动创建一个 var db = mongo.GetDatabase("movieReviews"); //创建一个列表,并为这个列表创建文档 var movies
In addition to the charts that follow, you might want to consider the Frequently Asked Questions section for a selection of common questions about MongoDB. Executables The following table presents the MySQL/Oracle executables and the corresponding Mo
inert into users value(3,5) db.users.insert({a:3,b:5}) select a,b from users db.users.find({}, {a:1,b:1}) select * from users db.users.find() select * from users where age=33 db.users.find({age:33}) select a,b from users where age=33 db.users.fin
使用SQL Server Management Studio可以查看SQL Server 服务器执行的SQL语句,支持sql server,(LocalDB)\V11.0,Projects\v12和sqlexpress数据库引擎 因为现在很多对数据库的直接操作都是由ORM框架来完成,比如使用entity,和Linq 语句,不能直接看到发送到数据库的SQL语句,但linq 语句还是会被转化成sql语句的,查看SQL语句的操作步骤如下: 1.在开始菜单 中找开 SQL Server Manageme
It is written in JavaScript,crud for mysql.You can also use transactions very easily. mysqls 一款专为node.js生成sql语句的插件,链式调用,使用灵活.支持生成sql语法,也支持生成语法之后直接调用,支持事物等特性. API参考很流行的ThinkPHP模型API. npm地址:www.npmjs.com/package/mys… github: github.com/wangweiange… mys
左边是mongodb查询语句,右边是sql语句.对照着用,挺方便. db.users.find() select * from users db.users.find({"age" : 27}) select * from users where age = 27 db.users.find({"username" : "joe", "age" : 27}) select * from users where "us