MINI MINI MANI MO

%
% Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
%
\name{as.ore}
\alias{as.ore}
\alias{as.ore,ANY-method}
\alias{as.ore,Date-method}
\alias{as.ore,POSIXt-method}
\alias{as.ore,data.frame-method}
\alias{as.ore,difftime-method}
\alias{as.ore,matrix-method}
\alias{as.ore,vector-method}
\alias{as.ore,ore-method}
\alias{as.ore.vector}
\alias{as.ore.logical}
\alias{as.ore.logical,ANY-method}
\alias{as.ore.logical,ore-method}
\alias{as.ore.logical,ore.logical-method}
\alias{as.ore.integer}
\alias{as.ore.integer,ANY-method}
\alias{as.ore.integer,ore-method}
\alias{as.ore.integer,ore.integer-method}
\alias{as.ore.numeric}
\alias{as.ore.numeric,ANY-method}
\alias{as.ore.numeric,ore-method}
\alias{as.ore.numeric,ore.numeric-method}
\alias{as.ore.character}
\alias{as.ore.character,ANY-method}
\alias{as.ore.character,ore-method}
\alias{as.ore.character,ore.character-method}
\alias{as.ore.factor}
\alias{as.ore.factor,ANY-method}
\alias{as.ore.factor,ore-method}
\alias{as.ore.factor,ore.factor-method}
\alias{as.ore.date}
\alias{as.ore.date,ANY-method}
\alias{as.ore.date,ore.date-method}
\alias{as.ore.datetime}
\alias{as.ore.datetime,ANY-method}
\alias{as.ore.datetime,ore.datetime-method}
\alias{as.ore.difftime}
\alias{as.ore.difftime,ANY-method}
\alias{as.ore.difftime,ore.difftime-method}
\alias{as.ore.frame}
\alias{as.ore.frame,ANY-method}
\alias{as.ore.frame,ore-method}
\alias{as.ore.frame,ore.frame-method}
\alias{as.ore.matrix}
\alias{as.ore.matrix,ANY-method}
\alias{as.ore.matrix,ore-method}
\alias{as.ore.matrix,ore.matrix-method}
\title{
Oracle R Enterprise 强制转换函数
}
\description{
将对象强制转换为 \code{\linkS4class{ore}} 类类型。
}
\usage{
as.ore(x, ...)
as.ore.vector(x, mode = "any")
as.ore.logical(x, ...)
as.ore.integer(x, ...)
as.ore.numeric(x, ...)
as.ore.character(x, ...)
as.ore.factor(x, ...)
as.ore.date(x, ...)
as.ore.datetime(x, ...)
as.ore.difftime(x, ...)
as.ore.frame(x, ...)
as.ore.matrix(x, ...)
}
\arguments{
  \item{x}{
一个对象。
}
  \item{mode}{
一个用于指定原子模式或 \code{"any"} 的字符串。
    支持的原子模式有 \code{"logical"}, \code{"integer"},
    \code{"numeric"} (同义词为 \code{"double"}) 和 \code{"character"}。
}
  \item{\dots}{
附加参数。
}
}
\details{
\code{as.ore} 函数将内存中 \R 对象强制转换为
  \code{\linkS4class{ore}} 对象。它类似于 
  \code{\link{ore.push}} 函数, 但是 \code{\link{ore.push}}
  在没有映射时不创建 \code{\linkS4class{ore}}
  对象, \code{as.ore} 函数在无法创建
  \code{\linkS4class{ore}} 对象时将引发错误。有关
  从内存中 \R 对象映射到 \code{\link{ore.push}}
  对象的详细信息, 请参阅 \code{\linkS4class{ore}}。
}
\value{
一个 \code{\linkS4class{ore}} 对象。
}
\references{
  \href{http://www.oracle.com/technetwork/database/database-technologies/r/r-enterprise/documentation/index.html}{Oracle R Enterprise}
}
\author{
  Oracle \email{oracle-r-enterprise@oracle.com}
}
\seealso{
  \code{\linkS4class{ore}},
  \code{\link{ore.push}},
  \code{\link{is.ore}},
  \code{\link[base]{as.vector}}
}
\examples{
\dontshow{
if (!interactive())
    ore.connect(user     = Sys.getenv("ORE_USERNAME", "rquser"),
                sid      = Sys.getenv("ORACLE_SID"),
                host     = Sys.getenv("HOST"),
                password = Sys.getenv("ORE_PASSWORD", "rquser"),
                port  = if (.Platform$OS.type == "windows")
                           Sys.getenv("ORACLE_PORT")
                        else
                           Sys.getenv("TCPPORT"),
                all = TRUE)
}

df <- data.frame(A = 1:26, B = letters)
dim(df)
class(df)
oreDF <- as.ore(df)
class(oreDF)
dim(oreDF)
head(oreDF)

vec <- 1:20
class(vec)
oreVec <- as.ore(vec)
class(oreVec)
}
\keyword{classes}
\keyword{database}
\keyword{ORE}