Examlex
When the child entity is required (M)in a relationship,there needs to be at least one child row for each parent row at all times.
SSD Drives
Solid-State Drives, a type of storage device that uses flash memory for storing data, known for its high speed and durability compared to traditional hard drives.
Storage Device
A hardware device designed for storing and retrieving digital data, such as hard drives, USB flash drives, and SD cards.
SSD Drives
Solid State Drives, a type of mass storage device similar to a hard disk drive, but using flash memory for storing data, providing faster access speed and reliability.
Mechanical Hard Drives
Data storage devices that use mechanical components such as spinning disks and read/write heads to access and store digital information.
Q1: The term semantic means _.<br>A)meaning<br>B)data<br>C)detailed<br>D)attribute
Q3: The SQL keyword CONSTRAINT can be used
Q3: In Microsoft Visio 2013,the cardinalities of the
Q6: Report management systems include the ability to
Q14: For a workstation running the Windows operating
Q19: The SQL keyword IS NULL can be
Q37: Denormalization reduces the complexity of the SQL
Q48: To represent an N:M relationship in a
Q71: When designing a database,first identify the entities,then
Q103: Discriminators can be _.<br>A)attributes<br>B)entities<br>C)relationships<br>D)subtypes