Dear R User's,

    Thank you, Mark. The following code suggested by you worked for me.
         dbGetQuery(connAE1, sprintf("INSERT INTO test1 (id) VALUES ( %d
);", i))
    But I have a issue in passing  "date and time data" as variable.If I
hard code the value like bellow it workings.
          dbGetQuery(connAE1, sprintf("INSERT INTO test1 (id) VALUES ( %s
);", ,'\'2012-06-10 16:36:00+05:30\''))
           Can some body please help me with the code where I need to read
from a variable(i) which has  data & time (2012-06-10 16:36:00+05:30). R is
throwing error for space as shown in output bellow

**********************************Console code &
output*******************************
    > if(dbExistsTable(connAE1, "test1")){
+   dbGetQuery(connAE1, sprintf("INSERT INTO test1 (id) VALUES ( %s );", i))
+ }
Error in postgresqlExecStatement(conn, statement, ...) :
  RS-DBI driver: (could not Retrieve the result : ERROR:  syntax error at
or near "16"
LINE 1: INSERT INTO test1 (id) VALUES ( 2012-06-10 16:36:00+05:30 );
                                                   ^
)
NULL
*********************************************************************************************


Thanks & Regards,
Thomas


On Wed, Jun 13, 2012 at 2:25 AM, Mark Dalphin <
mark.dalphin@pacificedge.co.nz> wrote:

> I just tested your code and I _think_ you have a misconception about
> dbWriteTable().
>
> Your code has some oddities so I am only guessing; for example, what is
> "zz" and why is it in this snippet?
>
> In the absence of information on the database TABLE, it is even harder to
> guess what you are doing, but I guess you are trying to use dbWriteTable to
> add a small amount of data to an existing table since previously you select
> from a similarly named table, "test1". The dbWriteTable function is writing
> to the table called "test1.id" not to "test1, column id". If you check
> your PostgreSQL schema, you will see that you have created a new table
> called "test1.id" (which you will be required to quote to remove as the
> DOT is an operator: DROP TABLE "test1.id";).
>
> I think you are trying to add a new row to the existing database table.
> Try using (untested):
> dbGetQuery(connAE1, sprintf("INSERT INTO test1 (id) VALUES ( %d );", i))
>
> and you will find things go better, assuming I grasped the problem you are
> having correctly.
>
> Regards,
> Mark Dalphin
>
>
> Prakash Thomas wrote:
>
>> Dear R User's
>>    Please help me to debug this issue. I am trying to write some data ( i=
>> 6) to PostgreSQL database, but it not writing.
>> Is there any issue in the way I use "dbWriteTable"?
>>
>> ++++++++++++++++++ Source Code ++++++++++++++++++++++++
>>
>> library("DBI")
>> library("RPostgreSQL")
>> drv1 <- dbDriver("PostgreSQL")
>> i=6
>> connAE1 <- dbConnect(drv1,host = "xx.xxx.xxx.xxx", port = "6443",
>> dbname="DB",user = "xxxxx",password = "xxx")
>> as.data.frame(zz[1])
>> dbGetQuery(connAE1,'SELECT id FROM \"test1\"')
>> if(dbExistsTable(connAE1, "test1")){
>>    dbWriteTable(con=connAE1,name=**'test1.id',value=as.data.**
>> frame(i),row.names=T
>> ,overwrite=F ,append=T)
>> }
>> dbDisconnect(connAE1)
>> dbUnloadDriver(drv1)
>> ++++++++++++++++++++++++++++++**++++++++++++++++++++++++
>>
>> Following is the past of the console Log for your Reference
>>
>> ++++++++++++++++++ console log ++++++++++++++++++++++++
>>
>>
>>> dbGetQuery(connAE1,'SELECT id FROM \"test1\"')
>>>
>>>
>>  id
>> 1  1
>> 2  2
>>
>>
>>
>>> if(dbExistsTable(connAE1, "test1")){
>>>
>>>
>> +     dbWriteTable(con=connAE1,name=**'test1.id',value=as.data.**
>> frame(i),row.names=T
>> ,overwrite=F ,append=T)
>> +    .... [TRUNCATED]
>>  id
>> 1  1
>> 2  2
>> ++++++++++++++++++++++++++++++**+++++++++++++++++++++
>>
>> Thanks & Regards,
>> Thomas
>>
>>        [[alternative HTML version deleted]]
>>
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>> PLEASE do read the posting guide http://www.R-project.org/**
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>> and provide commented, minimal, self-contained, reproducible code.
>>
>>
>
> --
>
>
>
>   Mark Dalphin Ph.D.
>
> Director of Bioinformatics
>
> mark.dalphin@pacificedge.co.nz <mailto:mark.dalphin@**pacificedge.co.nz<mark.dalphin@pacificedge.co.nz>
> >
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