The soil should not be soaking wet. 5. When the calendula seedlings are about 3 inches (7.62 cm) high, thin them so that the remaining plants are 8 to 12 inches (20.32 to 30.48 cm) apart. 6. Apply a thin layer of compost to the calendula plants in midsummer.
Home : Software Terms : Relational Database Definition. Relational Database. A relational database is a database model that stores data in tables. The vast majority of databases used in modern applications are relational, so the terms database and relational database are often used synonymously.
Different vendors use these terminologies to mean different things. In Oracle-speak, a database is the collection of datafiles on disk. These datafiles belong to your tablespaces. They are also the online redo log files, the parameter file, the password file, and the control files. A database exists on disk and will be there even if you shut down the server and reboot it. But a database is not accessible by itself. You have to sign on to SQL*Plus and issue a STARTUP command.