DBI202Xuất hiện trong 1 đề thi
Which of the following is not mentioned how does a local variable is defined using T-SQL?
Các lựa chọn
AThe name of the local variable should begin with “@@” sign as the first character of its name.
BA local variable is defined using T-SQL by using statement “DECLARE”.
CWhen a variable is first declared, its value is set to NULL. To assign a value to a variable, use the SET statement.
DThe data type of local variable is declared after its name and assigned a system-supplied or user-defined data type and a length.