QI meaning in Database Management ?

Answer:

What is Query Interface mean?

In computer programming, the IUnknown interface is the fundamental interface in the Component Object Model (COM). The COM specification mandates that COM objects must implement this interface. Furthermore, every other COM interface must be derived from IUnknown. IUnknown exposes two essential features of all COM objects: object lifetime management through reference counting, and access to object functionality through other interfaces.

An IUnknown (or IUnknown-derived) interface consists of a pointer to a virtual method table that contains a list of pointers to the functions that implement the functions declared in the interface, in the order that they are declared in the interface. The in-process invocation call overhead is therefore identical to virtual method calls in C++.

reference

Full Form	Category
Quarter I	Accounts and Finance
Quality Inspection	Business
Quartz Iodide lighting	Community
Quit If	Computer Assembly Language
QiSwap	Cryptocurrency
QiDao	Cryptocurrency
BENQI	Cryptocurrency
Quality of Information	Database Management
Query Interface	Database Management
Quality Integration	General
Quality Index	General
Quantitative Invisibility	General
Quality Infrastructure	General
Quotient Intellectuel	General
Quadrigis Innovatio	General
Quadric Intersection	General
QI is	General
Quirky Interesting	General
Quantitative Investing	General
Quad Ion	General
Queen Ida	General
Qualifying Individual	Governmental
Queen's Itinerary	Governmental
Questionable Intent	Governmental
Quality Improvement	Healthcare
Qualified Individual	Jobs
Qualified Intermediary	Jobs
Quasi-inverse	Maths
Quarter Integer	Maths
Quadrics Intersection	Maths
Quite Interesting	Messaging
Quality Indicator	Military and Defence