I am trying to write a dataframe from R to a SQL database. When I try to append the table to the SQL dataframe, I receive the following error:
Error in result_insert_dataframe(rs#ptr, values, batch_rows) :
[Microsoft][ODBC Driver 17 for SQL Server]Invalid character value for cast specification
I understand that this is an issue with one of my field not being formatted correctly or containing incompatible values for SQL. However, it is a very large dataframe with multiple fields, and I am having trouble isolating which is the issue. Does anyone have a suggested workflow or diagnostic tools to help isolate the issue?
Main Question: Are there diagnostic tools in R to help specify/identify which field is triggering an "invalid character value for cast specification" warning when trying to append a multi-variable dataframe in R to a SQL data table?
Edit - here are the data types of the R dataframe compared with the target table:
In SQL server, I have a table with 'smalldatetime' data type for one of the column. When I am trying to export the data using Microsoft SQL server import/export wizard, it is giving me conversion error because the field contains NULL value in Date field. Can you please help me in resolving this error.
What steps need to be followed in order to resolve the conversion error.
Are you trying to copy "table to table" or "query to table"?
Cause if your problem is only with null values you can write a query and use ISNULL() function.
Can you post the error here? I´m asking cause maybe your problem isn´t it. Maybe you´re trying to convert a type into another that is not compatible.
I'm trying to insert data into my table but I am receiving this error:
"SQL Developer Data is not compatible with column definition or is not available for a nut nullable column"
The column that is getting this error has data of the form 7391DBDF-40D5-E523-80C2-3863BB43AC67.
I believe this is a uniqueidentifer but but I'm not sure how one would insert this datatype into SQL Developer.
nvm: got it. Use Varchar
Same error importing good data into a number column with SQLDeveloper, problem was not specifying precision and scale on the column.
Solved by setting size to 28,0.
So I'm doing an exercise for class and I'm having a bit of trouble understanding this particular database that I'm meant to break into blindly.
The database throws the following error with the string:
x'
Error Type:
Microsoft OLE DB Provider for ODBC Drivers (0x80004005)
[Microsoft][ODBC driver for Oracle][Oracle]ORA-01756: quoted string not properly terminated
showing that it is vulnerable.
Similarly, the database concatenates fine with a valid input aka valid'||'input returns the correct webpage for the input.
What confuses me is that the database does not throw an error when the input x' -- is entered, but when the input x'; -- is entered the db throws the following error:
Error Type: Microsoft OLE DB Provider for ODBC Drivers (0x80040E14)
[Microsoft][ODBC driver for Oracle][Oracle]ORA-00911: invalid character
I've also tried URL encoding the input so that it reads x'%3b+-- or x'%3b -- but it returns the same result.
Does anyone have any clue where to step next since it seems that I can't inject a semicolon ; into a query?
Everything's an Edit Below This:
Edit 1: I got to thinking and thought I might be inside of a parenthetical block. I tried the input x'); and it produces the following error:
Error Type:
Microsoft OLE DB Provider for ODBC Drivers (0x80040E14)
[Microsoft][ODBC driver for Oracle][Oracle]ORA-00933: SQL command not properly ended
Edit 2:
Found out that the statement validinput'order by 52-- produced a result, but validinput'order by 53-- produced an error. I concluded the table has 52 columns.
I'm attempting validinput' union select 1 from table_name now, but it feels largely like a huge guessing game. I don't know what any of the table names could possibly be.
Edit 3:
My brain is honestly hurting at this point but I think I'm almost there...
The statement
validnum'+union+select+null,2,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null+from+dual--
returned a legitimate page
Edit 4:
Followed Jeffrey Kemp's suggestion and I got a single table (the output seems to be limited to 1 row). Uh oh. More information though, the version is Oracle 9i, and I know the database name plus user name, and few of the tables through blind luck. The goal of the exercise is to change a value in one of the tables. However, I've run into difficulty getting the column names since the output is limited to 1 row. Any suggestions?
I have a simple query which states
convert(decimal(20,10),a.sumclk)/ nullif(convert(decimal(20,10),a.sumimp),0) as CTR1
When I run this I get a message saying 'Data Type "sumclk" does not match a Defined Type name.'
I looked around for what this means but I'm stuck
I'm using Teradata
Instead of convert(decimal(20,10),a.sumclk) (which is MSSQL), try CAST(a.sumclk as decimal(20,10)) (which I found on the Teradata forums: http://forums.teradata.com/forum/database/explicit-casting)