LabVIEW doesn't come with a database - it's a programming language. It does have the ability to read/write to a variety of file types including databases such as Access, SQL Server, etc. You can also read/write text files or native Excel files. The database and Excel options are made easier with add-on toolkits but do not require them. There is
LabSQL and there have been examples posted about using ADO functions if you wish to create your own routines.