声明临时过程变量？

Question

我关注此帖：SQL: INSERT INTO...VALUES..SELECT

我的qustion是如何声明从SELECT语句赋值的临时@ value1？我有类似

的东西

CREATE PROCEDURE name
(
@arg1 as type1,
@arg2 as type2
)

AS
    @value1 = SELECT x from tabley WHERE <something>

    INSERT INTO Table(x,y,z) VALUES(@arg1,@arg2,@value1)

但我不知道在哪里声明并设置@ value1 ??

Answer 1

CREATE PROCEDURE name
(
@arg1 as type1,
@arg2 as type2
)

AS
DECLARE @value1 as type1

     SELECT @value1=x from tabley WHERE <something>

    INSERT INTO Table(x,y,z) VALUES(@arg1,@arg2,@value1)

Answer 2

SELECT @value1 := x from tabley WHERE <something>

Answer 3

DECLARE @value1 as type = (SELECT ...) 取代你的陈述