VFP用SQL表达式创建临时表一处细节，不注意就会翻车

select * from ryxx into cursor ryxx_tmp

CREATE CURSOR tty (FirstName c(10),LastName c(10))
INSERT INTO tty values("jack","1")
INSERT INTO tty values("bob","234")

select GetFullName(FirstName, LastName) as FullName FROM tty INTO CURSOR tty2

SELECT tty2
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function GetFullName(tcFirstName, tcLastName)
return trim(tcFirstName) + trim(tcLastName)

select CAST(GetFullName(FirstName, LastName) as v(31)) as FullName FROM tty INTO CURSOR tty2

SELECT tty2
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