The Parking Lot System Database Cannot Be Connected. How to Solve It- TigerWong

Intelligent car parking system will encounter some problems during use. Because the database connection fails, you can't log in to the parking lot management software, which is one of them. Is this a headache? The general parking lot system adopts SQL database. Here we summarize the causes and solutions of SQL database connection failure for your reference. 1. It is common to fail to connect due to login errors in login account, password, server name and database name. Carefully check whether the information filled in is correct. Generally, it can be solved if it is filled in correctly. Tip: when the software in use fails to connect to the database, there is usually a problem with the server name. Changing the server name can generally solve the problem. If the database is installed locally, the server name can be replaced by or (local); If it is installed on other computers in the LAN, you can use the IP address as the server name. 2. If the SQL server is not installed correctly, the database will not be connected; After installing the database, if the sql service manager is not started, go to the service to start it. Tip: if the SQL database cannot be successfully installed, it may not be installed when reinstalled again, indicating that there is an incomplete installation pending. The solution is: open the registry editor in HKEY_ LOCAL_ Find and delete the pendingfilerenameoperations item in machine system currentcontrolset control SessionManager. If you change the user name or password of windows, the sql service manager will not start. The solution is to modify the startup from the service in the control panel. Specifically: click Start - Settings - control panel - management tools - Services - find MSSQLSERVER Service - right click above - properties - login - modify the account and password to start the service. 3. The database cannot be connected due to permission problems. The solution is to check the security protection restrictions of the computer, SQL server security settings and the security restrictions of the operating system. Tip: you can turn off the firewall or anti-virus software temporarily to see if it is caused by the security settings of these software. SQL server security settings: Open Enterprise Manager - expand SQL Server Group - right click server name - click Properties - in SQL Server properties - security, select authentication in SQL server and windows; If the SQL Server adopts Windows XP system, when the workstation computer cannot connect to the database, you can establish the same Windows user account and password on the server and workstation respectively, so that the workstation can connect to the database. We have summarized the problem that the parking lot system database cannot be connected. Thank you for reading and hope to help you.