Simple SQL Server Backup script code _mssql

In general, we will use SQL Server's own database maintenance plan to define the backup.
Sometimes, however, some machine database maintenance plans do not successfully implement backups.
The reason for the error may vary, and we can use a simple SQL Server backup script to do the backup.
SQL statement that generates a simple SQL Server backup script:
Use master
Select ' Backup database ' +name+ ' to disk= ' F:\sqlserver_backup\ ' +name+ '-bak ' with init ' from sysdatabases
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Backup Database Master to disk= ' F:\sqlserver_backup\master.bak ' with init
Backup Database model to disk= ' F:\sqlserver_backup\model.bak ' with init
Backup DATABASE msdb to disk= ' F:\sqlserver_backup\msdb.bak ' with init
Backup database Db_app1 to disk= ' F:\sqlserver_backup\db_app1.bak ' with init
Backup database db_app2 to Disk=f:\sqlserver_backup\db_app2.bak ' with Init