SIGN(value) -- returns -1/0/1.
SIGN(value)
Every dialect here has a native SIGN() function EXCEPT sqlite, whose built-in math-functions extension does not include sign at all -- so a portable CASE expression is used for sqlite instead.
SIGN()
sign
CASE
SIGN(value)-- returns -1/0/1.Every dialect here has a native
SIGN()function EXCEPT sqlite, whose built-in math-functions extension does not includesignat all -- so a portableCASEexpression is used for sqlite instead.