Node-RED中连接sqlserver数据库并实现增删改查的操作_nodered sqlserver

作者：盐析白兔 | 2024-03-10 13:15:28

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nodered sqlserver

Node-RED中连接sqlserver数据库并实现增删改查的操作

1、打开node-red 网页界面

2、安装NodeRED节点

节点名称：node-red-contrib-mssql

3 创建表

设计流程图

①inject 节点，只需要拖拽进页面即可，不需要做内容修改

② MSSQL 节点，输入信息，编辑数据库连接；输出创表语句

创表语句：

CREATE TABLE [user2] (id VARCHAR(128) NOT NULL,name VARCHAR(128) DEFAULT NULL,pass VARCHAR(128) DEFAULT NULL,create_time DATETIME DEFAULT GETDATE(),update_time DATETIME DEFAULT GETDATE(),PRIMARY KEY (id));

③ debug 节点，只需要拖拽进页面即可，不需要做内容修改

部署后，点击按钮执行创表操作

4 插入数据

设计流程图

inject 节点和debug节点操作，MSSQL 节点编辑连接操作和创表流程步骤相同，就不重复说明了

②MSSQL 节点，输入插入数据语句

创表语句：


INSERT INTO [user2]  (id, name, pass)
VALUES ('2', 'luvk', '30');

5 更新语句

更新语句：


UPDATE [user2]
SET name = 'cc'
WHERE id = 1;

6 查看语句

查看语句：

select * from [user];

7 查看语句

删除语句：


DELETE FROM [user2]
WHERE id = 2;

总结：全流程json数据

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