Hello Eric,
Following your suggestion, I modified the code as:
summ <- function(Tabname){
query <- sprintf(" SELECT * FROM %s",Tabname)
res <- dbGetQuery(con, query)
view(dfSummary(res), file =
"W:/project/_Joe.B/MSSQL/try/summarytools.Tabname.html")
rm(res)
}
for (i in dbtable$Tot_table)
{
Tabname <- as.character(sqldf(sprintf("SELECT Tot_table FROM dbtable", i)))
summ(Tabname)
}
after submitted the work, I got the error message below:
Error: nanodbc/nanodbc.cpp:1655: 42000: [Microsoft][ODBC Driver 17 for SQL
Server][SQL Server]Invalid object name 'c'. [Microsoft][ODBC Driver 17 for SQL
Server][SQL Server]Statement(s) could not be prepared. <SQL> ' SELECT * FROM
c("BIODBX.MECCUNIQUE2", "BIODBX.QDATA_HTML_DUMMY", "BIODBX.SET_ITEMS",
"BIODBX.SET_NAMES", "dbo.sysdiagrams", "GEMD.ASSAY_DEFINITIONS",
"GEMD.ASSAY_DISCRETE_VALUES", "GEMD.ASSAY_QUESTIONS", "GEMD.ASSAY_RUNS",
"GEMD.BIODBX_DATABASE_SEED", "GEMD.BIODBX_USER_SEEDS", "GEMD.BIODBX_USERS",
"GEMD.DATA_ENTRY_PAGES", "GEMD.DISC_SESSION_QID", "GEMD.DISC_SESSION_STATUS",
"GEMD.DISC_SESSION_TYPE", "GEMD.DISCREPANCIES", "GEMD.DISCREPANCY_QUERY_TEMP",
"GEMD.DISCRETE_VALUES", "GEMD.ENTERED_DATA_ENTRY_PAGES", "GEMD.ENTRY_GROUPS",
"GEMD.ExportSampleListNames", "GEMD.FORM_STATUS_BY_SUBJECT",
"GEMD.GEMD_CODELIST_GROUPS", "GEMD.GEMD_CODELIST_VALUES",
"GEMD.GEMD_LOT_DEFINITIONS", "GEMD.GEMD_SAMPLES", "GEMD.GEMD_STUDIES",
"GEMD.MECCUNIQUE", "GEMD.MECCUNIQUE2", "GEMD.MISSING_DI
One more question, in the code of "view(dfSummary(res), file =
"W:/project/_Joe.B/MSSQL/try/summarytools.Tabname.html")",
can Tabname part be replacted automatic also?
Thank you,
Kai On Friday, July 2, 2021, 12:06:12 PM PDT, Eric Berger
<ericjber...@gmail.com> wrote:
Modify the summ() function to start like this
summ <- function(Tabname){ query <- sprintf("SELECT * FROM %s",Tabname)
res <- dbGetQuery(con, query)
etc
HTH,Eric
On Fri, Jul 2, 2021 at 9:39 PM Kai Yang via R-help <r-help@r-project.org> wrote:
Hello List,
The previous post look massy. I repost my question. Sorry,
I need to generate summary report for many tables (>200 tables). For each
table, I can use the script to generate report:
res <- dbGetQuery(con, "SELECT * FROM BIODBX.MECCUNIQUE2")
view(dfSummary(res), file =
"W:/project/_Joe.B/MSSQL/try/summarytools.BIODBX.MECCUNIQUE2.html")
rm(res)
BIODBX.MECCUNIQUE2 is the name of table.
I have all of tables' name in a data frame. So, I'm trying to write a function
to do this:
summ <- function(Tabname){
res <- dbGetQuery(con, "SELECT * FROM Tabname")
view(dfSummary(res), file =
"W:/project/_Joe.B/MSSQL/try/summarytools.Tabname.html")
rm(res)
}
for (i in dbtable$Tot_table)
{
Tabname <- as.character(sqldf(sprintf("SELECT Tot_table FROM dbtable", i)))
summ(Tabname)
}
1. I created a function summ, the argument is Tabname. I put the Tabname in
the function. I hope it can be replaced one by one
2. the table dbtable contents all tables' name (>200 rows), the field name is
Tot_table
3. I want use "for" to establish a loop, which can automatic generate a summary
report for each table
but I got error message below:
Error: nanodbc/nanodbc.cpp:1655: 42000: [Microsoft][ODBC Driver 17 for SQL
Server][SQL Server]Invalid object name 'Tabname'.
[Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Statement(s) could not be
prepared.
<SQL> 'SELECT * FROM Tabname'
10. stop(structure(list(message = "nanodbc/nanodbc.cpp:1655: 42000:
[Microsoft][ODBC Driver 17 for SQL Server][SQL Server]Invalid
object name 'Tabname'. [Microsoft][ODBC Driver 17 for SQL Server][SQL
Server]Statement(s) could not be prepared. \n<SQL>
'SELECT * FROM Tabname'",
call = NULL, cppstack = NULL), class = c("odbc::odbc_error",
"C++Error", "error", "condition")))
9.new_result(connection@ptr, statement, immediate)
8.OdbcResult(connection = conn, statement = statement, params = params,
immediate = immediate)
7..local(conn, statement, ...)
6.dbSendQuery(conn, statement, params = params, ...)
5.dbSendQuery(conn, statement, params = params, ...)
4..local(conn, statement, ...)
3.dbGetQuery(con, "SELECT * FROM Tabname")
2.dbGetQuery(con, "SELECT * FROM Tabname")
1.summ(Tabname)
it seems the tables' name is not successfully pass into query. can someone give
me an instruction for this?
many thanks,
Kai
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R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
