Pastaba.
Prieigai prie šio puslapio reikalingas įgaliojimas. Galite bandyti prisijungti arba pakeisti katalogus.
Prieigai prie šio puslapio reikalingas įgaliojimas. Galite bandyti pakeisti katalogus.
Variable
A variable expression is a reference to a named expression defined in the current scope. A variable reference must be a valid Entity SQL identifier, as defined in Identifiers.
The following example shows the use of a variable in the expression. The c in the FROM clause is the definition of the variable. The use of c in the SELECT clause represents the variable reference.
select c
from LOB.customers as c