Accept <your variable> <variable type if needed [number|char|date]> prompt 'message'

例

accept x number prompt 'Please enter something: '

然后您可以在PL / sql块中使用x变量,如下所示：

declare 
  a number;
begin
  a := &x;
end;
/

使用一个刺痛的例子：

accept x char prompt 'Please enter something: '

declare 
  a varchar2(10);
begin
  a := '&x';   -- for a substitution variable of char data type 
end;           -- to be treated as a character string it needs
/              -- to be enclosed with single quotation marks