Question

我正在尝试将名为“MyDF”的data.frame保存到名为“database2”的数据库中名为“MyTable”的表中。通道“con”打开与同一服务器上不同数据库的连接。我在下面尝试多次尝试在服务器上写回数据库2并获取错误。

在Attempt1中，代码在正确的数据库database2中创建一个名为MyTable的空表，然后抛出下面的错误。

最后一次尝试，Attempt7创建一个表并将记录加载到它中，但是在错误的数据库上创建它。

是否可以在database2上创建一个表并使用channel con将记录从MyDF加载到它中，或者我是否需要专门为database2创建一个新的通道？我只是使用channel con和sqlQuery从database2中提取数据时没有任何问题，只要我将[database2]。[dbo]添加到表名的开头。

data class DesugarExample(val foo: Int, val bar: Int, val baz: Int)

fun desugarIt() {
  val (useFoo, dontCare, useBaz) = DesugarExample(1, 2, 3)
}

[RODBC]错误：无法SQLExecDirect'CREATE TABLE [database2]。[dbo]。[MyTable]（“Field1”float，“Field2”float，“Field3”float，“Field4”float，“Field5”float ，“Field6”float，“Field7”float，“Field8”float，“Field9”float，“Field10”float，“Field11”float，“Field12”float，“Field13”float，“Field14”varchar（255））'

Attempt1:
sqlSave(con,MyDF,tablename="[database2].[dbo].[MyTable]",fast=F,append=F)

Error in sqlColumns(channel, tablename) : 
‘[database2].[dbo].[MyTable]’: table not found on channel

 Attempt2:

 sqlSave(con,MyDF,tablename="[database2].[dbo].[MyTable]",fast=F,append=T)

 Error in sqlSave(con, MyDF, tablename = "[database2].[dbo].[MyTable]",  : 
 42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL Server]There is already an object named 'MyTable' in the database.
 [RODBC] ERROR: Could not SQLExecDirect 'CREATE TABLE [database2].[dbo].[MyTable]  ("rownames" varchar(255), "Field1" float, "Field2" float, "Field3" float, "Field4" float, "Field5" float, "Field6" float, "Field7" float, "Field8" float, "Field9" float, "Field10" float, "Field11" float, "Field12" float, "Field13" float, "Field14" varchar(255))'


 Attempt3:

 sqlSave(con,MyDF,tablename="[database2].[dbo].[MyTable]",fast=T,append=T)

 Error in sqlSave(con, MyDF, tablename = "[database2].[dbo].[MyTable]",  : 
 42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL Server]There is already an object named 'MyTable' in the database.
[RODBC] ERROR: Could not SQLExecDirect 'CREATE TABLE [database2].[dbo].[MyTable]  ("rownames" varchar(255), "Field1" float, "Field2" float, "Field3" float, "Field4" float, "Field5" float, "Field6" float, "Field7" float, "Field8" float, "Field9" float, "Field10" float, "Field11" float, "Field12" float, "Field13" float, "Field14" varchar(255))'

Attempt4:

sqlSave(con,MyDF,tablename="[database2].[dbo].[MyTable]", verbose=TRUE, rownames= FALSE)
Query: CREATE TABLE [database2].[dbo].[MyTable]  ("Field1" float, "Field2" float, "Field3" float, "Field4" float, "Field5" float, "Field6" float, "Field7" float, "Field8" float, "Field9" float, "Field10" float, "Field11" float, "Field12" float, "Field13" float, "Field14" varchar(255))
Error in sqlSave(con, MyDF, tablename = "[database2].[dbo].[MyTable]",  : 
42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL Server]There is already an object named 'MyTable' in the database.
[RODBC] ERROR: Could not SQLExecDirect 'CREATE TABLE [database2].[dbo].[MyTable]  ("Field1" float, "Field2" float, "Field3" float, "Field4" float, "Field5" float, "Field6" float, "Field7" float, "Field8" float, "Field9" float, "Field10" float, "Field11" float, "Field12" float, "Field13" float, "Field14" varchar(255))'


Attempt5:

sqlSave(con,MyDF,tablename="[database2].[dbo].[MyTable]", verbose=TRUE, rownames= FALSE,fast=T,append=T)

Query: CREATE TABLE [database2].[dbo].[MyTable]  ("Field1" float, "Field2" float, "Field3" float, "Field4" float, "Field5" float, "Field6" float, "Field7" float, "Field8" float, "Field9" float, "Field10" float, "Field11" float, "Field12" float, "Field13" float, "Field14" varchar(255))
Error in sqlSave(con, MyDF, tablename = "[database2].[dbo].[MyTable]",  : 
42S01 2714 [Microsoft][ODBC SQL Server Driver][SQL Server]There is already an object named 'MyTable' in the database.

使用sqlSave将数据帧保存到不同的数据库中

0 个答案: