Question

Define C language and also give one example ?

Answer 1

(¯´•._.• ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ •._.•´¯)

C is a high-level and general-purpose programming language that is ideal for developing firmware or portable applications. Originally intended for writing system software, C was developed at Bell Labs by Dennis Ritchie for the Unix Operating System in the early 1970s.

ᴇʜsᴀss  ^_^

Answer 2

The difference between a UNIQUE constraint and a Primary Key is that per table you may only have one Primary Key but you may define more than one UNIQUE constraints. Primary Key constraints are not nullable. UNIQUE constraints may be nullable. ... A UNIQUE constraint will generate a unique NON-CLUSTERED INDEX.